Trabajos backend engineer en SheffieldCrear alertas

We are accepting applications from varying seniority levels, from Graduate to Principal Engineer, and will adjust terms accordingly. About Amodo Amodo is a hardware engineering company building the 21st century's most important technologies. Our team of mechanical, electronic, firmware, and software engineers are trusted by world-leading startups, universities, governments and philanthropists to solve pressing technical challenges. See who they are on our website - including MIT, Cambridge, Oxford, Imperial, ARIA and Rand Corp. We are selective in the projects we take on and proactive in seeking out where our exceptional engineering teams can make the most impact. We believe in differential technology development: deliberately accelerating safety-enhancing technologies to ensure human flourishing. Not every technology is inevitable – rather, the market fails to incentivise key domains. We work in these areas. What do we do? At Amodo you will work with a world class team to create some of the most important technologies of our time. We focus on high speed development and real world impact, making sure we’re continually delivering tangible, concrete progress across the board. You will see your designs manufactured and distributed globally, your research inform policy, and you will support multi-million pound projects. We’re currently focused on four key fields: AI safety, biosecurity, humane tech, and accelerating science (developing the hardware tools that scientific breakthroughs require, but don't yet exist). In addition to client work, we want to bring our inventions into the world as spin-out companies, open-source projects, and products. We're actively hiring people to take charge of making this happen. New invention & new research - We design and build new products, equipment, and tools. Invention and rapid iteration are core to our DNA. We use these new inventions and our experience to perform new research and push boundaries. More products than powerpoints - Common failure modes of today’s consultancies include risk aversion, theatre for clients, and misrepresentation of what is important in projects. We reject this approach. We’re here to do truth-seeking, progress-optimising engineering, not to make slide decks. Work that matters - Unlike many consultancies we also get involved at the pre-product stage. Our experience in industry and biotech puts us in the position to run feasibility studies for new and existing companies. This research-heavy work can include literature reviews, feasibility modelling and market research. A bit on our culture and what it would look like to work here: • Our values: Truth-seeking, excellent, enthusiastic, kind, humble, and always learning, • Our approach: We think before diving in, iterate fast, and focus on the highest-impact 80/20 work. We favour rapid experimentation, quick feedback loops, and sprinting to "something that works" rather than over-planning., • Feedback culture: We practice radical candor, which means being clear and direct while staying kind, and welcoming feedback at every level, • No "not my job"-ism: If we see something wrong, we fix it. If your part of a project is going great and another is struggling, don't settle for polishing a chunk of a struggling ship, • Socials: Table tennis every lunch, personal project evenings, pub trips, trail running club, and more, • Office: Spacious, modern space in central Sheffield, with parking and bike storage. In-house workshop and equipment for our mechanical and electrical work., • Project structure: You will generally be on 1 main project at a time, whilst supporting on 1-2 smaller projects. Team sizes vary from 2-10+ engineers, where most are ~4. Durations largely are within the 2 - 8 months range. We value drive, culture fit, and a track-record of engineering excellence and above all else, but the below competencies, interests, and attributes are extremely desirable: • Experience with frontend or backend development, • Experience writing and deploying code in one or more: CPP, JS, TypeScript, Python, • Experience writing firmware and working on hardware projects, • Interest in beautiful UX and graphic design., • Scientific tools, • Automation & robotics (Linux & ROS level), • Embedded C/C++ (typically owned by dedicated firmware engineers, but software engineers are welcome to learn!), • Linux, CUDA, Server engineering for our AI safety, security, and verification work, • Custom simulation software (usually python), • Data analysis pipelines (python) Benefits • Free lunch every day, • Flexible hybrid working, • Flexible working hours, • 35 days holiday (including bank holidays), • We can pay your professional registration and institution fees, • Relocation assistance may be negotiated, • 15 minute technical screening interview, • 1 hour technical interview, • 1.5 hour in-person interview, • Offer

Senior AI Engineer Sheffield - 1-2x week in office Salary: £80,000 - £90,000 This is an exciting opportunity to join a business that is investing heavily in AI and modern cloud technologies. You will play a key role in building AI‑driven products that have a direct impact on customer experience, operational efficiency and the future of their platform. The Company They are a tech‑forward insurance organisation with a strong focus on delivering smarter, more personalised digital products. Their teams combine data, engineering and customer expertise to create solutions that simplify complex challenges for their users. Innovation, collaboration and a flexible working culture are at the heart of how they operate. They continue to scale their AI capability and are looking for someone who can help shape this next phase of growth. The Role In this AI Platform Engineer role, you will: • Design, build and operate AI‑first products that deliver measurable value., • Develop and deploy production‑grade AI agents on GCP using ADK, integrating with internal systems via REST and JSON APIs., • Build and maintain robust evaluation and monitoring frameworks, including online and offline testing, A/B experiments and performance dashboards., • Integrate AI agent functionality with applications through MCP servers and reliable tool configurations., • Develop secure and scalable RAG pipelines, including ingestion, text processing, metadata handling and vector search in GCP., • Embed security, compliance, GDPR controls and best‑practice engineering with clear documentation and stakeholder collaboration. Your Skills and Experience To be successful, you will bring: • Strong Python skills for backend services, SDKs, API development, authentication and testing., • Hands‑on experience working with LLMs, embeddings, prompt engineering, tool calling and RAG design., • Practical knowledge of GCP services including Vertex AI, Model Garden, BigQuery, Cloud Run and Google’s ADK., • Experience with document and data processing using tools such as Apache Tika, plus storage or caching technologies like Postgres, Redis, GCS or BigQuery., • Solid DevOps practices including CI/CD, Docker, observability and automated testing., • A product‑led mindset with a strong understanding of security, IAM, auditability and defining success metrics. What They Offer • Opportunities to shape AI products from the ground up., • A collaborative environment that encourages innovation and career progression. How to Apply If you are excited about building production‑ready AI systems and want to drive meaningful impact, please apply with your CV.

Senior Software Engineer – Backend (TypeScript / Node.js) 📍 Remote (UK) 💰 Circa £150,000 This opportunity is with a growing B2B technology company building backend-heavy products used by enterprise customers in a regulated space. The platform focuses on reliability, data correctness, and operational robustness. The business is continuing to scale its engineering function and is investing in strengthening the foundations of its backend systems as both the product and customer base grow. The Role: They’re looking for a Senior Backend Software Engineer to join one of their product engineering teams, with a focus on building and running services in TypeScript / Node.js. This is a hands-on role working on core backend services that underpin the product. You’ll take ownership of meaningful technical areas, contribute to architectural decisions, and help raise engineering standards as the team grows. What You’ll Be Doing: • Building and operating backend services in TypeScript / Node.js, • Owning services end-to-end, including production support, • Working with data-heavy systems where correctness and reliability matter, • Integrating with third-party APIs and external systems, • Improving performance, observability, and resilience, • Contributing to system design and architectural decisions, • Helping set and uphold engineering best practices, and acting as a senior presence in the team What They’re Looking For • Strong backend engineering experience with TypeScript / Node.js, • Experience working with modern backend frameworks and production databases, • Familiarity with cloud-native environments (AWS or similar), containers (Docker), and orchestration (e.g. Kubernetes), • Experience operating and improving production systems, not just building features, • A quality-focused mindset and a clear understanding of what “good” looks like in backend engineering, • Comfort working in complex, evolving systems with real-world reliability requirements Industry background isn’t the priority — they’re looking for solid senior backend engineers who care about building dependable systems. Why Consider It? • A chance to work on meaningful backend problems, • Exposure to complex data flows and reliability challenges at scale, • Real influence over how systems are built, operated, and improved, • An environment that values ownership, pragmatism, and engineering quality

Accelerant is building a new platform that will serve as the backbone of how risk is exchanged in the future. The Product & Technology team is looking for a Full Stack Software Engineer who is passionate about building high quality software systems that are valued by customers. If you join our team, here are some of things you’ll be doing: • Working closely with peer engineers, product managers, and other stakeholders to understand project requirements and deliver solutions that meet business needs., • Developing new frontend and backend features that help make our customers successful., • Writing backend code in Typescript that is fully unit tested., • Writing frontend code in Svelte, optimizing the frontend codebase for speed, efficiency, maintainability, and scalability., • Moving fast, while taking the time to ship high-quality code. What you bring to the table: • Experience building and scaling web applications., • Strong understanding of modern JavaScript frameworks., • Strong coding ability., • Passionate problem-solving mindset., • Reputation for getting things done., • Strong sense of ownership., • Desire to learn and grow. Desired qualifications: • Experience with Typescript., • Experience with Svelte, web components, or equivalent component model., • Experience with cloud platforms such as AWS, and databases such as Postgres and Snowflake., • Experience with SQL-Like databases and data caching strategies such as Postgres, Snowflake, and Redis. About Accelerant: Accelerant is a data-driven, technology-fueled insurance platform that empowers underwriters to more effectively serve their insureds. We’re using advanced data intelligence tools to rebuild the way that underwriters share and exchange risk. With a current focus on the small and mediumsized businesses that power our global economy and their niche insurance needs, we align incentives to improve outcomes for everyone. Our full-service risk exchange supports our carefully selected, best-in-class network of underwriting teams. We leverage granular information on each policy to deliver unprecedented insight into insurance pools, and our specialty portfolio is fully diversified with very low catastrophe, aggregation or systemic risk. Confiden'al We’re proud to have been awarded an AM Best A- (Excellent) rating. For more information, please visit . Accelerant is a fully remote company. Work where you’re most productive and fulfilled. This position is open to remote candidates across the U.S. Canada, UK, and Europe, who have the flexibility to work with our teams distributed across Europe and North America. Most cross-team collaboration happens in the mornings of the Eastern Time Zone

Node (Backend) Software Engineer VC-backed Tech: Node / MongoDB Fully remote in the UK • Have you worked for a start-up or scale-up software company?, • Are you passionate about solving clients' real problems and making a difference in their business?, • Do you have 5+ years' commercial development experience in NodeJS? Our client, VC-backed software vendor, believes in a world where all businesses have the confidence that they will get paid for their work. They're an international team all focused on making a huge difference so have lots of ideas and are incredibly driven. We support and care about each other, there's no room for egos, the only agenda is making sure everything they do is to the best of their abilities. They are looking for a pro-active, analytical Node (Backend) Software Engineer to join a growing team. You will have an entrepreneurial and empathetic mindset that propels you to commit to delving deep into the user experience, the challenges they face and how to improve the product. You'll also come with strong collaboration skills, and the ability to document proper requirements for short term and long-term projects. Node (Backend) Software Engineer Responsibilities • Design, development and testing of new features in the applications, • Implement, test, and bug-fix functionality, • Work with and support the product manager on new initiatives and features development, • Participate as a team member in fully agile Scrum deliveries Node (Backend) Software Engineer Requirements • 5+ years experience developing applications in Node.js, • Experience with MongoDB or other non-relational databases, • Experience in a start-up and scale-up software company, • Experience in remote working, • Experience in development of distributed/scalable systems and high-volume transaction applications, • Follow best practices and design patterns, • Good communication skills, both verbal and written No visa sponsorship. Must work in the UK. UK standard hours (flexibility 8/9am - 4/6pm) For more information, please contact Katie at Matched Group Senior Backend Engineer / Senior Backend Developer / Node Developer / Node Engineer / Backend Developer / Backend Engineer / NodeJS

On behalf of our client, we are hiring for a Software Engineer (Python). 📍 Relocation to London | 5 days/week in office | Visa sponsorship & relocation package offered The company is building the next generation of customer service through AI Agents. Their agents handle calls, respond to emails and WhatsApp messages, make bookings, process payments, and operate CRM systems in the same way a human would. Founded in June 2023, the company participated in the Y Combinator S23 batch. The founding team spent several months in San Francisco immersed in AI development. Since then, they have achieved ~30% month-on-month revenue growth while rapidly shipping new features. Most recently, they raised a $13M Series A to accelerate their expansion. They are developing AI voice agents designed to help trade businesses operate more efficiently, scale faster, and deliver improved customer experiences. As an early-stage engineer, the successful candidate will play a key role not only in building products, but also in shaping how the company evolves, interacts with customers, and scales. Who You Are • Customer-focused: You prioritise user needs, ask the right questions, and build solutions with impact in mind., • Action-oriented: You move quickly, experiment, and continuously learn., • Ownership mindset: You take responsibility for outcomes and proactively raise standards., • Ambitious and curious: You are excited by new ideas, technologies, and challenges., • Collaborative: You contribute to a positive team environment and support others., • Quality-driven: You care deeply about your work and strive for excellence. What You Bring • Strong software engineering fundamentals, with the ability to design, debug, and deliver reliable systems., • Proficiency in Python or TypeScript, or the ability to quickly learn new technologies., • Experience building and shipping AI-driven products end-to-end (startup, personal projects, open source, or enterprise)., • Comfort working across the stack (frontend, backend, and infrastructure)., • Ability to collaborate with both technical and non-technical stakeholders., • A demonstrated track record of initiative and ownership. Nice to Have • Experience in early-stage startups, particularly within AI, voice platforms, or event-driven systems., • Familiarity with modern cloud infrastructure (e.g., Kubernetes, serverless architectures, distributed systems)., • Strong customer empathy, whether through support, founding experience, or building user-centric products. Perks & Benefits • 💸 Competitive salary and equity, • 📚 Ongoing learning and development in AI, • ✈️ Team socials and annual offsites, • 🏥 Private healthcare

Lead Data Platform Engineer Remote (UK-based) SC Clearance Required (British Citizen) Permanent - Up to £110,000 + Benefits We are looking for a hands-on Lead Data Platform Engineer to join a high-impact programme delivering scalable, real-time data solutions. This role offers the opportunity to work on complex, mission-critical systems using modern technologies across streaming, cloud, and distributed data platforms. The Role As a Lead Data Platform Engineer, you will design and deliver batch and real-time data pipelines that are highly available, low latency, and scalable. You will collaborate with cross-functional teams to shape solutions, influence architecture, and ensure data is transformed into reliable, consumable outputs. Key Responsibilities • Design, build, and deploy data pipelines and backend services, • Work with real-time streaming technologies and event-driven architectures, • Champion engineering best practices including TDD, CI/CD, and clean code, • Collaborate with architects, analysts, and testers in Agile/BDD environments, • Take ownership of services in production, ensuring performance and reliability, • Drive continuous improvement across data platform capabilities, • Contribute to solution design, estimation, and delivery planning Required Experience • Strong production Java experience, • Experience with Kafka, Kinesis, or similar streaming technologies, • Hands-on experience with Spark, Flink, Kafka Streams, or similar, • Experience with Spring Boot and/or Python, • Strong experience with AWS (including Lambda and S3), • Experience integrating with PostgreSQL, Redis, or similar, • Solid understanding of data pipelines and data modelling, • Passion for clean, testable, and maintainable code, • Experience working in Agile and/or DevOps environments Desirable Skills • Experience with Elasticsearch, OpenSearch, or Solr, • Familiarity with Terraform, Ansible, or Packer, • Experience with CI/CD tools such as Jenkins or Drone If you are interested, please apply or get in touch to discuss further.

We’re hiring a Senior Python Engineer to take ownership of a live, production trading system used in options markets. This is a hands-on engineering role focused on real-time systems, production reliability, performance profiling, and safe operation during live market hours. This is not a general backend or web-product role. We are not looking for engineers whose background is mainly CRUD applications, internal business systems, or frontend-heavy product development. We want engineers who have already built, operated, and improved performance-critical, real-time production systems. Location: UK only Applicants must already be based in the UK and must have the legal right to work in the UK. We are not considering overseas applicants or relocation cases for this role. Working style: Mostly remote, with occasional in-person days in the UK for planning and coordination Support expectations: Availability during core US market hours is required What You'll Do • Own and improve a production Python trading system that runs during market hours, • Build new capabilities across a high-impact roadmap that includes feature expansion, algorithmic improvement, and integration of new components, • Help bring new ideas into production, from early implementation through to safe rollout and operational support, • Optimise performance and reliability in parts of the system where timing, stability, and correctness matter, • Improve the quality of the engineering environment through better tooling, test coverage, replay/debug workflows, and observability, • Make the platform more robust under real-world conditions, including degraded inputs, operational faults, and time-critical scenarios, • Work directly with the founder and engineering team in a high-ownership environment where good decisions turn into shipped changes quickly, • Have visible influence over both day-to-day engineering priorities and the longer-term direction of the platform Who This Role Is For This role is for engineers who have: • built or owned real-time, event-driven, or latency-sensitive systems in production, • worked on systems where p50/p99 latency, jitter, throughput, or correctness mattered, • supported systems during time-critical operating windows, • improved existing codebases through careful refactoring, testing, instrumentation, and operational hardening Who This Role Is Not For This role is unlikely to be a fit if your experience is mainly: • web application development, • standard SaaS backend work, • REST API / CRUD application development, • frontend-heavy product engineering, • batch ETL or offline data processing without real-time operational ownership Essential Requirements • UK-based only and already have the legal right to work in the UK, • 5+ years of professional software engineering experience, • Strong production Python experience, • Experience owning or materially improving a real-time, event-driven, or low-latency production system, • Experience measuring and improving performance using profiling, instrumentation, and production diagnostics, • Strong understanding of concurrency trade-offs in Python, including async, multiprocessing, and process boundaries, • Experience working in existing codebases and improving them through refactoring, testing, and better architecture, • Experience with messaging/event-driven systems and disciplined data contracts or schemas, • Strong production ownership mindset: monitoring, debugging, incidents, and reliability under pressure Preferred Experience • Experience with trading systems, market data systems, or execution infrastructure, • Experience with brokerage or execution APIs such as Interactive Brokers, • Experience designing safety guardrails or operational constraints in automated systems, • Experience with replay, simulation, or deterministic regression tooling for live systems, • Experience with Linux production environments, observability, and performance troubleshooting What We Offer • Competitive salary, negotiable based on experience, • Performance-related bonus, • Mostly remote working, with occasional in-person collaboration days in the UK, • High ownership in a lean team, • Direct influence over a live production system and future technical roadmap

Job Title - Senior Golang Engineer Rate - Competitive (Outside IR35) Location - Remote from UK & Europe Role Overview The Senior Backend Engineer will play a key role in building and scaling robust backend systems for a high-growth, multi-region platform. This position focuses on developing resilient, high-throughput services within a distributed, event-driven environment, supporting critical domains such as payments, accounts, and transaction processing. Core Responsibilities • Design, develop, and optimise backend services using Golang., • Build scalable, fault-tolerant microservices within a distributed architecture., • Develop and maintain RESTful APIs and internal service-to-service communication layers., • Work across core platform areas including payments, accounts, ledger, and risk/compliance systems., • Ensure code quality through peer reviews, testing, and adherence to engineering best practices., • Monitor and support live systems, troubleshooting and resolving production issues., • Collaborate closely with cross-functional teams including Product, DevOps, and Compliance. Required Experience • Strong hands-on experience developing backend services in Golang., • Solid understanding of concurrency, system performance, and efficient resource management., • Proven experience designing and building microservices and distributed systems., • Experience working with containerisation and orchestration tools such as Kubernetes., • Familiarity with cloud platforms (AWS, GCP, or Azure)., • Previous experience in fintech, regulated environments, or high-transaction systems is highly desirable. If this is of interest then please apply, we would love to hear from you!

TalentCo are delighted to be partnering with an established PE-backed tech company looking to hire a high-calibre Lead Software Engineer into their UK business, as they build a new conversational AI platform from the ground up. This hire can be based predominantly from home anywhere in the UK, with occasional trips to meet the team, but with plenty of flexibility to suit individual circumstances. The client are developing a low-code, multi-tenant platform that enables large enterprises to design, build and deploy AI agents capable of handling both single-step LLM tasks and complex multi-step agentic workflows. As Lead Software Engineer you will: • Set the software engineering standards for this newly formed team of 4., • Operate roughly as follows: 70% hands-on software development, 30% tech lead responsibilities., • Develop scalable backend services for multi-tenant execution of AI agents., • Deploy LLM-based applications and agentic workflows at scale. We want to hear from you if: • You have 5+ years of hands-on experience building production applications, with at least 2 years as a Lead Software Engineer, Technical Lead or Software Engineering Lead, • You're an expert when it comes to backend development using Python, building systems at scale, • Strong knowledge of cloud infrastructure (AWS, GCP, or Azure) and scalable architectures., • Bonus points if you have high-volume, low-latency message processing and Kubernetes experience, • You do NOT need previous AI experience, but you definitely need a keen desire to build AI products. What do they offer? • Salary £120k-£150k, • Comprehensive benefits package, • Remote-first setup anywhere in the UK, with occasional travel to the company HQ just north of London

Senior Software Engineer (AWS / TypeScript) - Up to £440 per day | Remote UK We’re working with a growing tech-led business embarking on a major cloud transformation programme and they’re looking for a Contract Software Engineer to play a key role in modernising a core platform. This is a hands on position focused on re-platforming an existing Azure based .NET application into a cloud-native AWS architecture, leveraging modern TypeScript tooling and serverless technologies. The Role You’ll be responsible for helping to lift, evolve and re-architect a legacy application into a scalable, event-driven AWS environment. Working closely with engineers and stakeholders, you’ll contribute to both technical direction and delivery, helping shape best practices and modern engineering standards along the way. Key Responsibilities • Lead the migration of an existing .NET / SQL Server application into AWS, • Design and build cloud-native solutions using modern TypeScript, • Develop serverless architectures using AWS Lambda, Step Functions and DynamoDB, • Collaborate with cross-functional teams to define and deliver scalable solutions, • Contribute to architectural decisions and promote engineering best practice, • Support CI/CD, testing and deployment processes Tech Stack • AWS (Lambda, Step Functions, DynamoDB), • TypeScript / Node.js, • Existing environment: .NET, Azure, SQL Server What We’re Looking For • Strong experience as a Senior Engineer in modern web/backend development, • Proven track record working with AWS and serverless architectures, • Experience building applications with TypeScript / Node.js, • Understanding of cloud migration / modernisation projects, • Solid grasp of API design, distributed systems and event-driven architecture, • Comfortable working in an evolving environment with a high degree of autonomy If you're interested, please apply through the link and I'll be in touch ASAP

Job Title: Senior DevOps & Back-end Engineer – Strategy & Corporate Finance Who You’ll Work With You’ll join clients Strategic Growth Hunter team, a high-impact engineering and analytics squad that designs and scales cloud-native solutions powering our financial intelligence platforms. We work with cutting-edge tools to automate infrastructure, manage scalable deployments, and ensure robust performance under heavy data loads. Our environment encourages autonomy and technical excellence — whether in AWS architecture, container orchestration, or backend services built in Scala and Python. Join us to help redefine how organizations create value, combining deep analytics, DevOps automation, and scalable architecture to drive impact across Strategy & Corporate Finance. What You’ll Do As a Senior DevOps & Back-end Engineer, you’ll be responsible for building, automating, and maintaining reliable, scalable cloud environments while contributing to backend development where needed. Your key responsibilities will include: DevOps & Cloud Infrastructure (≈80%) ∙ Design, build, and maintain AWS-based infrastructure supporting high-performance analytics platforms. ∙ Use Terraform for Infrastructure as Code (IaC), ensuring reproducibility and scalability of deployments. ∙ Implement, manage, and optimize Kubernetes clusters for container orchestration and microservice scaling. ∙ Automate CI/CD pipelines, monitoring, and alerting using industry best practices. ∙ Configure and manage databases — PostgreSQL, MongoDB, and Kafka — ensuring reliability, replication, and performance. ∙ Champion cloud security, cost optimization, and disaster recovery best practices. Software Development (≈20%) ∙ Contribute to backend service development, primarily using Scala and Python. ∙ Develop and maintain APIs, microservices, and data processing pipelines integrated with the DevOps stack. ∙ Collaborate with other engineers to ensure code quality, maintainability, and smooth integration with CI/CD systems. ∙ Support cross-functional teams (product, analytics, design) by implementing scalable and efficient solutions. Qualifications Required DevOps Skills ∙ Strong DevOps expertise in AWS, Terraform, and Kubernetes (EKS preferred). ∙ Experience in managing databases (MongoDB, PostgreSQL), and queues (Kafka). ∙ Proficiency in CI/CD tools (GitHub Actions is a preference.). ∙ Hands-on experience with containerization (Docker), Linux-based containers and infrastructure automation. ∙ Solid understanding of monitoring and logging frameworks. Required Development Skills ∙ Experience in development and debugging of JVM-based applications (Scala preferred) and Python applications. ∙ Familiarity with RESTful API design, microservices architecture, and data-intensive backend systems. General ∙ Strong analytical and problem-solving skills. ∙ Eager to learn new technologies. ∙ Effective communicator with both technical and non-technical audiences. ∙ Comfortable in Agile, high-paced, collaborative environments. ∙ Fluent in English (written and spoken).

Software Engineer within Data & A.I team 🔥 Salary circa 75K with a 10% bonus. 📍Very flexible working arrangement, great to see you in Bristol office, however are open to fully remote. Super interesting company, using AI to build smart solutions that help governments, businesses, and communities make better decisions. They develop advanced robotic systems and software for things like surveillance, inspections, and emergency response. The org is in the Defense industry, so you will gain SC Clearance (must have been in the UK for 5 years to attain it) They're expanding their Data & AI team and looking for a Backend Software Engineer to help build scalable, reliable systems. What you’ll do: ➡️Turn requirements into working software ➡️Design, build, and deploy backend systems ➡️Work closely with product teams in an Agile setup ➡️Test, improve, and maintain code quality ➡️Support real-world deployments and system integration ➡️Keep up with new tech and contribute to improvements They're looking for: ✅3+ years of software engineering experience ✅Strong C# and .NET skills ✅Experience with APIs, databases, and system design ✅Familiarity with Linux, Cloud, DevOps, and CI/CD ✅Comfortable working in Agile teams ✅Bonus: experience with AI/ML or distributed systems You should be a strong problem-solver, detail-oriented, and able to work in a fast-moving environment. Please get in touch if you would like to learn more!

🚀 Senior Full-Stack Engineer – TypeScript / React / AWS 💰 Up to £90,000 + Equity | Fully Remote (UK) 💻 Tech Stack: TypeScript, Node.js, React.js, AWS ✅ Backend lean We’re on the hunt for a hands-on Senior Engineer to join a fast-moving team delivering real, production grade systems. This isn’t R&D or proof-of-concept work, they’re shipping cloud-native, AI-enabled products that customers actually use. 🔹 About You • 6–8 years’ experience ideally, • TypeScript, React, Node.js wizardry, • AWS experience, • Bonus: React Native 🔹 What You’ll Do • Build event-driven microservices & APIs, • Develop modern, scalable React UIs, • Ship cloud-native systems on AWS, • Collaborate with product & AI specialists to turn ideas into features, • Champion clean, testable, reliable code 🔹 Why Join • Hands-on role with real ownership, • Work with modern cloud architecture & AI products, • Fully remote, but part of a high-performing, collaborative team 📩 Interested? Send over your CV + notice period. 🚀 Senior Full-Stack Engineer – TypeScript / React / AWS

Staff Software Engineer – AI/ML (Agentic AI) Engineering | UK Remote / London (hybrid) Overview My client is a fast-growing, product-led technology company investing heavily in AI and next-generation machine learning solutions. They are seeking a Staff Software Engineer with experience in agent-based AI systems to help design and deliver advanced AI-driven products. The Role This is a hands-on technical leadership role focused on building scalable AI/ML systems, with a particular emphasis on agentic AI and modern machine learning approaches. You will play a key role in shaping technical direction, establishing best practices, and delivering high-quality systems from concept through to production. The role also involves mentoring engineers and contributing to the growth of a high-performing team. Key Responsibilities Project Ownership • Lead the design and delivery of AI/ML initiatives across the full lifecycle, • Build and deploy models, data pipelines, and production systems Cross-Functional Collaboration • Work closely with Engineering, Product, and DevOps teams, • Support integration of AI capabilities into wider platforms Technical Leadership • Provide guidance on AI/ML frameworks, tools, and best practices, • Contribute to the development of agent-based AI systems and workflows Mentorship & Communication • Mentor engineers and support technical development, • Promote strong collaboration across teams Problem Solving & Optimisation • Identify and resolve challenges in AI/ML systems, • Improve performance, scalability, and reliability Governance & Quality • Ensure high standards around model performance, data quality, and compliance Documentation & Knowledge Sharing • Maintain clear documentation and contribute to internal best practices Skills & Experience • 7+ years’ experience in AI/ML engineering, including production systems, • 3+ years in a technical leadership role, • Strong programming skills (e.g. Python or similar), • Experience with machine learning, data pipelines, and scalable systems, • Knowledge of modern AI approaches, including large language models and agent-based systems, • Experience working with cloud platforms (AWS, GCP, or Azure), • Understanding of distributed systems and scalable architectures, • Experience with CI/CD, microservices, and MLOps practices, • Ability to mentor and support engineers, • Strong collaboration and communication skills, • Experience working in Agile environments, • Degree in a relevant technical field (or equivalent experience) Tech Environment (indicative) • Backend languages (e.g. Python or similar), • Cloud platforms (AWS / GCP / Azure), • Containerisation and orchestration tools, • Infrastructure as code, • Observability and ML tooling, • Modern AI/LLM frameworks, • Relational and non-relational databases, • Version control and CI/CD tooling Benefits • Competitive salary, • 25 days’ annual leave + bank holidays, • Sick pay package, • Flexible / remote working, • Enhanced parental leave, • Pension scheme, • Career development opportunities Additional Information This role is not eligible for visa sponsorship.

Senior Rust Developer - Perm - Aviation Technology Salary: £80,000-£110,000 + equity Location: Full Remote UK (Must be a resident, will not accept remote workers outside the UK) We’re supporting a specialist aviation technology company building high‑performance, mission‑critical backend systems used in live airline and airport operations. The platform underpins real‑time scheduling, disruption management, and optimisation, operating in complex, data‑intensive, and time‑sensitive environments. They’re looking for a Senior Rust Engineer to work on core backend services where low latency, concurrency, reliability, and correctness are first‑class concerns. This is not a web or API‑first role - the focus is on systems‑level backend engineering that directly supports real operational decision‑making. What you’ll work on • Designing and implementing high‑performance backend services in Rust, • Building concurrent, low‑latency systems handling real‑time operational data, • Developing services that support optimisation, scheduling, and disruption scenarios, • Improving performance, observability, fault tolerance, and system resilience, • Working closely with domain experts to translate real‑world aviation constraints into robust software What they’re looking for • Strong experience building backend or systems software with Rust, • Solid understanding of concurrency, memory management, performance tuning, and system design, • Experience working on complex or operationally critical systems, • Comfortable owning architectural decisions and working through ambiguous problems Highly desirable experience: • Aviation domain experience (airlines, airports, flight operations, or aviation platforms), • Background in transport, optimisation, or other safety‑critical environments, • Prior experience with C/C++, real‑time, or distributed systems If you’re a Rust‑focused backend engineer with experience in aviation or operational systems, apply directly or get in touch to have a confidential conversation and learn more.

Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS • Salary: £70k - £85k plus bonus, • Location: Fully remote, (UK-based), • Sponsorship is not available for this role Prism Digital have partnered with a super interesting and niche VC-backed client specialising in attack surface management and automated red teaming. Their platform provides organisations with real-time visibility into their attack surface and potential exploitable vulnerabilities. They have received numerous awards for being an up-and-coming security SaaS product company and show no signs of slowing down their growth. They've completed Series A funding, raising $29 million across three funding rounds, and are now seeking a Senior Backend Engineer. This role acts as the intersection between two teams - frontend software team and the security research team. You will be responsible for the entirety of the back end features of the products. You will be in charge of building scalable backend services and awesome messaging queues. You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily. So the ideal candidate will come from a background of working with applications that are processing large amounts of data, transactions or instances daily. Key Requirements: • Python, • Previously worked at a start up / smaller sized company, • 5 years+ experience, • Ability to build software which scales, • Building messaging queues e.g., Kafka (nice to have) This is entirely a Python back-end development role (Python 3), where the core framework used is FastAPI and Kafka for the messaging queues. The data sits in PostreSQL and MongoDB. Benefits • Up to £85,000, • Fully remote, • 28-day holidays (including bank holidays), • Shares options, • Private health insurance via Bupa, • Competitive pension, • Salary reviews every 12 months This role does not accept applicants outside of the UK, nor does it offer sponsorship Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS • Seniority Level, • Mid-Senior level, • Industry, • Technology, Information and Media, • IT Services and IT Consulting, • Computer and Network Security, • Employment Type, • Full-time, • Job Functions, • Engineering, • Skills, • Back-End Web Development, • Scalability, • Distributed Systems, • Python (Programming Lang Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS

Pivotal Partners is exclusively partnered with a Series D ($1.1B) AI company defining the AI Software Development space. Backed by top-tier investors and founded by a deeply technical team (ex-Scale AI, Cursor, Modal, Google DeepMind, and Waymo), the company is already valued at $12B. With technical deployment and customer impact at the core of the GTM strategy, this Forward Deployed Engineer role is critical to how the product gets adopted, expanded, and defined in the real world. Location: London, England Role: Forward Deployed Engineer (FDE) As a Forward Deployed Engineer, you will own the technical success and real-world application of the platform across a number of our largest customers. This is a highly strategic, customer-facing engineering role focused on building, deploying, and iterating on solutions... not support. You’ll work directly with senior stakeholders (engineering, product, and leadership) to turn ambiguous problems into production-grade systems that influence real decisions. Why this role: • Opportunity to join and work with leading engineers from Anthropic, OpenAI, Palantir and Scale AI., • Highly technical role with direct exposure to real-world outcomes, • Work sits at the intersection of engineering, product, and strategy, • Genuinely new problem space — no established playbooks, • High ownership and autonomy from day one If you're an Software engineer/Full Stack Engineer who wants to move closer to the problem, the customer, and the decision making itself, this is worth a conversation. Responsibilities: • Own the technical relationship for a portfolio of enterprise customers, • Scope and break down ambiguous, high-impact problems into solvable components, • Design and build production-grade systems (APIs, data pipelines, integrations), • Deploy solutions into real-world workflows that directly influence decision-making, • Act as a trusted advisor to senior engineers, architects, and executives, • Translate customer use cases into actionable product and engineering insights, • Partner closely with Product and Engineering to shape roadmap and capabilities, • Help define and scale how this technology is applied across industries Requirements: • MUST HAVE A STEM degree, • Strong software engineering fundamentals (Python, TypeScript, or similar), • Experience building backend systems, data pipelines, or distributed systems, • Comfortable working with APIs, integrations, and modern infrastructure, • Ability to operate in ambiguous, fast-moving environments with minimal structure, • Strong communication skills across both technical and non-technical audiences, • Experience in customer-facing technical roles (FDE) is beneficial but not required

📍 Remote | Full-Time 👋 About Us Medify is a mission-driven EdTech company widening access to medicine and healthcare careers. Our platform supports thousands of learners preparing for high-stakes admissions exams, and our engineering team plays a critical role in delivering reliable, scalable, and high-quality learning experiences. Medify Engineering is a team of ten engineers across two teams, and everyone is hands on, including engineering management and the CTO, which helps us keep our processes practical and engineer-friendly. We work to minimise meetings: engineers typically have a 15-minute daily standup for in-progress updates and quick alignment with Product, plus (per two-week sprint) a one-hour refinement with Product, a one-hour planning session with engineering, and a 30-minute company-wide demo. Operational work like deployments, bug triage, and on-call is handled on a rotation, with each person covering one week roughly every two months. 🎯 The Role As a Senior Full Stack Engineer at Medify, you will play a pivotal role in shaping our platform and technical direction. Working closely with the CTO and fellow engineers, you’ll be involved across the full software development lifecycle - from ideation and design through to development, testing, and deployment. This is a fully remote, home-based role, suited to someone who enjoys ownership, collaboration and solving complex problems in a fast-moving environment. Tech stack: Ruby on Rails (backend), frontend transitioning from Ember to React, Postgres database, hosted on AWS. 🧩 Key Responsibilities • Design and develop high-quality, scalable, and efficient software solutions using modern best practices, • Collaborate closely with Product and Design teams to understand requirements and provide technical input, • Contribute to architectural decisions and overall system design, • Conduct code reviews and provide constructive feedback to maintain high code quality, • Troubleshoot, diagnose, and resolve software issues efficiently, • Develop and maintain automated tests to ensure performance and reliability, • Mentor junior engineers and share technical knowledge and best practices, • Participate in agile planning, backlog management, and delivery updates, • Stay up to date with emerging technologies and software development best practices, • Support recruitment by contributing to interviews and selection decisions 🧠 Core Competencies • Excellent problem-solving and analytical skills, • Strong communication and collaboration skills, • Ability to thrive in a fast-paced, agile environment, • Leadership and mentoring capability, • High attention to detail and quality 🎓 Qualifications • BS/MS degree in Computer Science, Engineering, or a related field is desirable but not required 🛠️ Experience & Knowledge • 5+ years’ experience in software development, • Extensive experience with modern programming languages and frameworks, • (Ruby on Rails and React highly desirable), • Proven track record of building scalable, efficient software systems, • Strong understanding of the software development lifecycle and agile methodologies, • Experience working with cross-functional teams (Product, Design, Engineering), • Experience recruiting and mentoring junior engineers is a plus 💡 Skills • Proficiency in modern programming languages and frameworks, • Strong grasp of data structures, algorithms, and software design principles, • Experience with databases, APIs, and networking, • Knowledge of software testing methodologies and tools, • Familiarity with DevOps practices and tooling, • Ability to learn and adapt quickly to new technologies, • Clear, confident written and verbal communication ✅ What We Offer • Competitive salary: £70,000–£85,000 depending on experience, • Annual leave: 25 days, rising to 28 days over three years, • Fully remote, flexible working, • Pension scheme, • Professional development sponsorship and matched charity funding, • Private health and dental care after one year of employment

[NO RECRUITERS PLEASE] About Flare Flare is the number one delivery date platform for Shopify Plus brands globally. We power the delivery experience at checkout for over 700 merchants, handling the logic, rules, and complexity behind the scenes so shoppers always see accurate, reliable delivery options when it matters most. We've grown 10x in revenue since Q1 2025, processing over $100M in orders annually across hundreds of thousands of checkouts every month. We're growing at 15% month-on-month, cash-flow positive, and just getting started. We're building Flare into the end-to-end shipping logic layer for Shopify, from checkout UI to carrier integrations. Legacy and unreliable software owns this space today. We're taking it from them. Why this role exists Flare was built by two founders. You'd be the third person in the company and the first engineering hire to join the founding team. The work is hard: real-time delivery calculation, geo and postcode rule enforcement, carrier and fulfilment integrations, checkout performance at scale. We need someone who loves building reliable systems fast and is happy to roll up their sleeves and get stuck in, whether that's shipping a customer-facing fix that drives retention or architecting something that scales to ten times the load. We move fast and the bar is high. You'll work directly with our CTO, who built a rules and conditions engine from scratch that processes over a million requests a week, returning complex delivery decisions to Shopify in under 190ms. You'll learn how those decisions got made, how to build for scale whilst shipping fast, and how to take something from zero to one. Our CEO grew Flare from nothing to 700 brands without a sales team, so when you're building, you're building on top of real commercial momentum. You'll own how you build, ship things live for major brands within your first weeks, and be pushed to do the best work of your career. If you're the kind of engineer who finds that energising, this is the right place. We're an AI-first team. Using tools like Cursor and Claude Code isn't optional - it's how we move fast without cutting corners. Anything that helps us ship better product faster is fair game. What you'll work on The decision engine At the core of Flare is a system that takes everything - postcode, product, carrier, cut-off time, cart, customer location - and distils it into a simple, accurate response that shows the right delivery options to the right shopper at the right moment. You'll expand the rules and conditions layer, add new carrier and fulfilment integrations, and push the performance envelope as request volume grows. That includes thinking carefully about how we cache responses intelligently, so we stay fast at scale without compromising on accuracy. Checkout and customer experience The Shopify checkout is one of the most constrained and scrutinised environments in eCommerce. Shopify's extensions model is powerful but unforgiving on performance. You'll build the frontend layer that takes the output of our decision engine and turns it into a fast, polished experience that shoppers actually enjoy using. Done well, it increases conversion. Done badly, it loses the sale. The challenge is building something technically complex that feels completely effortless to the person buying. AI-assisted onboarding Onboarding is a critical and genuinely interesting problem. You'll work on using AI to make setup as frictionless as possible, including building agents that can complete configuration autonomously. Making a powerful system easy to adopt without dumbing it down is hard to get right. Scale and reliability We're building toward $1bn in orders processed. That means taking what exists and making it handle an order of magnitude more load, whether through serverless, microservices, or another strategy. You'll be a core part of figuring that out. Every architectural decision comes back to one question: is this fast and reliable enough? In eCommerce, every millisecond counts. The kind of person we're looking for We want someone who is deeply curious about the problems our merchants face, happy to get stuck into the work that makes customers fall in love with the product, and capable of thinking bigger when it matters. You care about the customer, you understand eCommerce, and you bring your own thinking to the table. That means: • At least 3 years of strong full-stack experience, comfortable moving between frontend product work and backend systems, • Real experience with Shopify APIs (not theme development), eCommerce, logistics, or complex rule-based backend systems — you understand the domain, not just the code, • You think carefully about performance. You know what it means to build a system that has to respond in milliseconds, and you care about why that matters, • You write with production in mind: failure cases, edge cases, what happens when something breaks at 3am for a merchant processing thousands of orders a day, • You ship fast without being reckless, and you know the difference between moving quickly and cutting corners, • You use AI tooling as a natural part of how you work, not as a novelty The stack TypeScript, React (Preact), Remix, Node.js, GraphQL, AWS (ECS/EC2, DynamoDB), Shopify APIs and Webhooks. The hiring process • Intro call (30 mins) with the CTO about your background and the role, • Technical deep dive (60 mins) on a real system design problem relevant to Flare, • Founder conversation (30 mins) with the CEO about how you work and what you're looking for, • Offer What we offer 25 days holiday plus your local public holidays. We start with a one month trial, followed by a six month contract, with a move to a permanent position for the right person. We move quickly for the right person. How to apply Email with the following: • An overview of what you've built and shipped: production apps, side projects, systems you owned or played a significant part in. Be specific: what did you build, what decisions did you make, what did it handle at scale. If you can't share code, talk us through it., • Your GitHub profile, portfolio, or any links to live work., • A short note on why this role. Not a cover letter - just tell us what specifically resonates with you about what we're building and what in your background is directly relevant.

Lead AI Engineer Location: Flexible, Europe preferred Type: Full time Overview I am supporting a new AI venture backed by an established global technology platform in digital publishing and print infrastructure. The team is building an AI powered design editor that allows users to generate fully customised, print ready assets from natural language prompts. Unlike template based tools, this system creates original layouts, graphics, and structured outputs end to end. The Role You will operate at the intersection of backend engineering and applied AI, designing and building scalable systems that support production grade AI workflows. This is a hands on role with architectural ownership, focused on taking AI systems from concept through to reliable, high traffic deployment. Key Responsibilities • Design and build backend systems for AI driven content generation, • Develop and scale LLM pipelines, including orchestration and evaluation, • Build agent based workflows for structured content generation, • Architect APIs using Python, FastAPI, and Pydantic, • Ensure systems are robust, scalable, and optimised for production inference, • Collaborate with product and design teams to translate user prompts into structured outputs, • Own performance, reliability, and cost optimisation across AI services Requirements • Strong backend engineering experience with Python, • Proven experience building and deploying LLM based systems in production, • Experience with FastAPI, Pydantic, or similar frameworks, • Hands on experience with RAG, prompt engineering, or agent based systems, • Understanding of system design for high traffic, low latency environments, • Experience working across cloud platforms such as AWS or GCP, • Ability to operate as a senior individual contributor with ownership of architecture and delivery Nice to Have • Experience with generative design, graphics, or structured document generation, • Exposure to multimodal models or layout aware systems, • Background in building tools for creative or publishing workflows

🔎 Platform / Cloud Engineer (Rust) 🚀 Early-Stage B2B SaaS - Connected Business Planning 🇬🇧 100% Remote (UK) 💷 Up to £95,000 + Benefits 🧠 Mid-Senior Level The Opportunity A well-backed, pre-launch SaaS company is building the platform that replaces spreadsheets as the way product-based businesses plan, forecast, and make decisions. Think a live, connected model of an entire business - P&L, inventory, demand, margins, all updating in real time as the business changes. The engineering team is small, senior, and building something genuinely hard: a calculation engine that keeps every number consistent across an entire organisation, with AI on the roadmap. The infrastructure is being built right now, from the ground up, and they need someone to own it. This is a rare chance to shape the cloud and platform foundations of a product at the moment it matters most - before launch, while the architecture decisions still count. What You'll Do • Design and build Kubernetes infrastructure on AWS from early-stage architecture, • Own infrastructure-as-code (Terraform) and CI/CD pipelines, • Work closely with a Rust-heavy backend team, understanding and integrating with the codebase, not just operating it, • Establish observability practices across the platform (metrics, logging, tracing, alerting), • Contribute to decisions around self-hosting LLMs as AI becomes part of the product, • Document systems and share knowledge proactively. You'll be the most specialised engineer on the team and they want the whole team to grow with you What We're Looking For • AWS - deep working experience, • Kubernetes in production (EKS or self-managed), • Terraform or equivalent IaC, • Observability tooling (Prometheus, Grafana, OpenTelemetry or similar), • Rust - You don't need to be an expert, but enough working knowledge to read the codebase and understand what's happening Nice to have: • Early-stage startup experience, • CI/CD pipeline ownership (GitHub Actions, ArgoCD or similar), • Any exposure to LLM infrastructure or AI/ML platform work Experience Level We're open to strong mid-level engineers as well as senior candidates. If you've got solid AWS and Kubernetes foundations, care about building things properly, and want real ownership, we want to hear from you. Depth matters more than years on a CV. Benefits • A priority focus on Work-Life Balance (no expectation of working weekends or long hours - we're not pushing last-minute deadlines and overworking, we're hiring with strategy and purpose), • Salary up to £95k, • 30 days holiday + local national holidays, • Flexible Hours, • Equity, • Remote working, • Home equipment set up

Software Engineer — Data Systems Who we are We’re Metomic; a data security platform helping enterprises understand and protect sensitive data across their SaaS environments. We process large volumes of real customer data daily and our systems must remain fast, accurate, and reliable under load. Why this role exists Our product depends on data systems that behave predictably at scale. We’re investing in strengthening our data platform - ingestion, storage, querying, streaming, and performance. We need an engineer who understands how architecture decisions affect performance, correctness, and operability. This role will help us evolve and scale systems involving ClickHouse, Postgres, and streaming pipelines, while working across the broader product when needed. What you’ll work on • Designing and improving high-volume data pipelines, • Optimising performance across ClickHouse and Postgres, • Working with streaming/event systems (Kafka-style architectures), • Improving reliability and observability of data workflows, • Debugging real production data and performance issues, • Supporting data platform evolution and migration initiatives, • Contributing to backend systems (primarily TypeScript/Node, with some Go or Python) You’ll work across the product, but your depth in data systems will be your superpower. What we’re looking for • Strong software engineering fundamentals, • Experience operating data systems at scale Relational databases (Postgres, MySQL) • Streaming systems (Kafka, Kinesis, etc.), • Strong performance debugging skills, • Experience in one or more of: TypeScript/Node, Go, Python, • Ability to reason about behaviour under load Bonus: • Experience migrating data between storage engines or evolving schemas at scale, • Experience optimising complex analytical queries, • Experience with distributed systems What success looks like in 6 months • You can explain how our data systems behave under load, • You’ve measurably improved performance or reliability, • Production data issues are diagnosed faster, • At least one scaling or performance bottleneck has been removed How we work We’re a small engineering team where your work directly affects customers. We value: • Engineers who think in systems, • Clear reasoning about correctness and trade-offs, • People who understand how data and infrastructure decisions impact real users Even in data-focused roles, we expect engineers to understand product context and customer impact. Logistics / Hiring / Benefits • UK-based remote role. Monthly London meetup (travel covered for those further out)., • Right to work in the UK required., • Three-stage process including short take-home task., • Great annual leave + stock options.

Full-Stack Engineer Location: London (Hybrid) Salary: Up to £80,000 + benefits We have partnered with a well-funded, founder-led technology startup operating in the sports and media space, building next-generation systems for processing and analysing live content in real time. As the platform scales, they’re hiring a Full-Stack Engineer to design and deliver high-performance systems across real-time data pipelines, modern frontend applications, and AI-enhanced product features. What You’ll Do as a Full-Stack Engineer: • Own the end-to-end delivery of real-time video, data, and AI-driven analysis across a modern digital content platform., • Design and build resilient backend services using Java and cloud-native infrastructure., • Develop modern, high-performance frontend applications using TypeScript and a modern JavaScript framework., • Architect and maintain real-time data pipelines using event-driven systems and streaming technologies., • Work across cloud-based serverless and containerised infrastructure to deploy scalable, production-ready systems., • Integrate LLM APIs and AI-powered workflows into product functionality and engineering processes., • Leverage AI coding assistants and modern development tooling to accelerate development and automate workflows., • Collaborate closely with a small, high-trust engineering team to ship features quickly and reliably., • Take ownership of system architecture, infrastructure decisions, and production deployments. Core Technology Stack: • Backend: Java, distributed messaging systems, relational databases, Docker, infrastructure as code, • Frontend: TypeScript, modern JavaScript frameworks, • Infrastructure: Cloud-native serverless and containerised environments, • AI Tooling: Regular use of AI-powered development tools and coding assistants What We’re Looking For in a Full-Stack Engineer: • A polyglot engineering mindset with the ability to work across multiple languages and systems., • Strong experience building backend services and distributed systems., • Ability to read, understand, and contribute to Java-based systems., • Frontend experience with modern frameworks such as React, Vue, Svelte, or similar technologies., • Hands-on experience integrating LLM APIs from leading providers., • Regular use of AI tools and coding assistants to increase development velocity and automate workflows., • Strong engineering fundamentals including testing, documentation, security, and performance optimisation., • Comfort working in fast-moving environments where ownership, clarity, and delivery are expected. Nice to Have’s as a Full-Stack Engineer: • Experience in sports technology, live event data systems, or digital media platforms., • Exposure to streaming technologies or real-time data processing frameworks., • Strong experience designing data architectures and large-scale distributed systems. This is a rare opportunity for a Full-Stack Engineer to help shape a real-time digital platform from an early stage, working with modern cloud infrastructure and AI-augmented engineering workflows to deliver high-impact systems.

Software Engineer (Back-end) Tech Stack: C# / .NET / Git / Azure Location: Fully Remote (no office travel required) Salary: £50,000 - £60,000 + Benefits This is an excellent opportunity to join a small but growing insurance software company, as they look to expand their development team. You’ll work across a variety of initiatives, including their core product development, system migrations, and integrations. This role is focused on backend development within a modern Microsoft Azure environment, using C# and .NET 10. For those interested in broadening their skill set, there is also the opportunity to gain exposure to React. What We’re Looking For: • Strong experience with modern C# and .NET (8+), • Experience building and maintaining Web APIs, • Proficiency with Git, • Experience working in an Azure environment, • Working knowledge of SQL, • A proactive, self-starter mindset Desirable (Not Essential): • Experience with React, • Previous experience in the insurance sector If you’re interested, please apply and we’ll be in touch with more information!

Contract TypeScript / Node.js Engineer (SC Cleared) - Outside IR35 Rate: £450–£475/day - Outside IR35 Contract Length: 6-month contract (strong likelihood of extension) Location: Remote Must hold active SC clearance (transferable) We’re partnered with a high-growth technology consultancy delivering a multi-year, large-scale transformation programme within a secure environment. They’re looking for a TypeScript / Node.js Engineer to join the team, working on modern, scalable systems with real impact. What you’ll be doing • Building and enhancing backend services using TypeScript / Node.js, • Contributing to the development of modern, cloud-native applications, • Collaborating with cross-functional teams in a fast-paced, delivery-focused environment, • Writing clean, scalable, and well-tested code, • Supporting delivery across a complex, high-impact programme What we’re looking for • Strong experience with TypeScript and Node.js, • Experience working in agile, delivery-focused teams, • Comfortable working within secure / regulated environments, • Active SC clearance (essential) Nice to have • Experience with Java, • Experience with React or other modern frontend frameworks Why this role • Join a consultancy in hyper-growth phase, • Work on a long-term, transformational programme, • High-impact role with modern tech stack, • Strong chance of extension beyond initial 6 months If you’re an SC-cleared engineer looking for your next contract, drop me a message or apply directly.

Backend Software Engineer VC-backed Tech: Node / MongoDB Fully remote in the UK • Have you worked for a start-up or scale-up software company?, • Are you passionate about solving clients' real problems and making a difference in their business?, • Do you have 5+ years' commercial development experience in NodeJS? Our client, VC-backed software vendor, believes in a world where all businesses have the confidence that they will get paid for their work. They're an international team all focused on making a huge difference so have lots of ideas and are incredibly driven. We support and care about each other, there's no room for egos, the only agenda is making sure everything they do is to the best of their abilities. They are looking for a pro-active, analytical Backend Software Engineer to join a growing team. You will have an entrepreneurial and empathetic mindset that propels you to commit to delving deep into the user experience, the challenges they face and how to improve the product. You'll also come with strong collaboration skills, and the ability to document proper requirements for short term and long-term projects. Backend Software EngineerResponsibilities • Design, development and testing of new features in the applications, • Implement, test, and bug-fix functionality, • Work with and support the product manager on new initiatives and features development, • Participate as a team member in fully agile Scrum deliveries Backend Software Engineer Requirements • 5+ years experience developing applications in Node.js, • Experience with MongoDB or other non-relational databases, • Experience in a start-up and scale-up software company, • Experience in development of distributed/scalable systems and high-volume transaction applications, • Follow best practices and design patterns, • Good communication skills, both verbal and written No visa sponsorship. Must work in the UK. UK standard hours (flexibility 8/9am - 4/6pm) For more information, please contact Katie at Matched Group Senior Backend Engineer / Senior Backend Developer / Node Developer / Node Engineer / Backend Developer / Backend Engineer / NodeJS

Location: Remote UK (working from home) Salary: £60,000 - £65,000 per annum, DOE + benefits Please note that only applicants who submit a cover letter with their application will be considered for this role About Artifax Artifax Software builds industry-leading venue and event management tools for the arts and culture sector. Our platform is used by performing arts centres, museums, festivals, universities, and cultural organisations around the world. We’re a remote-first, values-led team backed by the stability of Volaris Group, with a culture that’s collaborative, supportive, and always evolving through feedback. About the role We’re looking for a Senior Software Engineer who can take ownership of complex, production systems while applying AI in a disciplined, engineering-led way. You will work across two equally important areas: • Designing and delivering AI-enabled features and workflows that create real product and commercial value, • Incrementally modernising a complex PHP-based enterprise platform to keep it robust, scalable, and future-ready This is a senior, hands-on role with real technical ownership. Success requires strong engineering judgement, the ability to operate in complex systems, and the confidence to own architectural decisions end-to-end. Working closely with the Product Owner and Head of Engineering, you will make pragmatic architectural decisions that balance innovation, delivery speed, security, and long-term maintainability. AI is central to how we build. We seek engineers who create robust software features by embracing AI-first engineering practices and who are capable of integrating AI responsibly and effectively within customer-facing features and internal workflows. What you’ll do • Design and deliver clean, secure, maintainable, and performant end-to-end solutions using AI-accelerated coding across frontend, backend, and infrastructure, • Support the uplift of architectural components, backend systems, and enterprise-grade functionality, • Use AI tools for code generation, code review assistance, test automation, design translation, and rapid prototyping, • Contribute to evolving AI-enabled development processes and patterns across the business, • Lead development of new product add-ons with clear commercial value, • Assist in improving system performance, reliability, and scalability, • Design AI/LLM-powered workflows with strong guardrails for security and reliability, • Build REST APIs and modular services, including scalable inference-backed services where appropriate, • Package and deploy applications using Docker/Kubernetes, • Support AWS-based deployments with a focus on reliability and scalability, • Collaborate on CI/CD pipelines and automation, • Work closely with product, leadership, and customer-facing teams, • Contribute to shared patterns, documentation, and continuous improvement What you’ll bring • 7+ years building and maintaining production software on cloud-native platforms, • Strong backend engineering experience with server-side frameworks like Laravel/CodeIgniter (PHP 8.2+), alongside experience in related technologies such as TypeScript, React, Node.js, JavaScript, • Deep understanding of relational databases, • Experience working with complex business logic and legacy systems, • Hands-on experience using AI tools (GitHub Copilot, Cursor, Claude) for Software Development and agentic development workflows., • Experience integrating AI or LLM-based capabilities into applications or workflows, • Solid grounding in software architecture, system design, containerisation and cloud platforms (AWS), • Confidence working with legacy systems while driving pragmatic improvement, • Clear communication skills and a strong sense of technical ownership Nice to have • Experience with microservices, security best practices, or SaaS products, • Familiarity with LLMs, RAG pipelines, or vector search, • Background in creative technology or the arts & culture sector, • Familiarity with agile development methodologies, Git-based workflows and iterative release cycles Why join Artifax? • Shape products used by cultural organisations worldwide, • Work on meaningful, technically challenging problems with real ownership, • Be part of a collaborative, remote-first engineering culture, • Explore responsible, real-world applications of AI, • Enjoy stability, autonomy, and opportunities to influence long-term technical direction Application Requirement Please include a short cover letter (max 300–400 words) including details of: • A production system you’ve owned end-to-end, • Your experience working on the modernisation of legacy systems or complex business logic., • An example of how you’ve used AI tools in the Software Development lifecycle or AI/LLM in a real product/workflows, • Why you feel this role is a good fit for your experience Applications without an accompanying cover letter will not be considered. Important • This is a UK-based role, • Applicants must be resident in the UK and have the right to work in this country, • Artifax is not able to offer visa sponsorship If you’re excited by thoughtful engineering, practical AI, and building products that support arts and culture, we’d love to hear from you.

About Euphoric: Euphoric builds AI-first employee benefits administration software for the world’s largest and most prestigious employers. Born out of Peppy Health — a fast-growing, category-defining Series B startup — we spun out in May 2025 to tackle a far bigger opportunity. Global employers spend $3–5 trillion on benefits every year. It’s their second-largest cost after payroll — yet the entire category is still running on legacy systems and outdated assumptions. The space is primed for transformation: despite its scale, it’s been almost completely overlooked by AI-first startups. Incumbents — including one U.S. heavyweight with $2B+ in annual revenue — are constrained by archaic tech stacks and can’t move fast enough to innovate. And this isn’t just a massive market — it’s genuine “tech for good.” Smarter benefits administration, richer analytics, and clearer communication have the power to directly improve the everyday lives, wellbeing, and financial security of millions of employees worldwide. We’re a sharp, high-velocity team with bold ambitions, obsessed with building category-defining technology and partnering with exceptional people who want their work to truly matter. We closed our seed round in October 2025 and are building from a position of strength with a long cash runway. The role: We’re looking for a Software Engineer to bring their ambition, creativity, and technical prowess to join our high-powered team to build the technology that powers the world’s first lovable, AI-native benefits platform. You’ll have real ownership, big targets, and a chance to help shape both the work you do and the company in general. We care less about traditional career paths and more about raw talent, bias for action, and how much fire you bring. What you’ll do: • Build AI-first features end-to-end: You’ll contribute to the design, deployment, and iteration of our next-generation benefits platform features that leverage personalization, experimentation, and AI/ML methods (e.g. agents/LLMs, recommender systems, reinforcement learning) to enhance user experience in a meaningful business domain., • Contribute across the tech stack: You’ll work in React (JavaScript/TypeScript) on the frontend and Python (FastAPI, SQLAlchemy) on the backend, shipping production-ready code and user-facing features in addition to innovative ML work., • Live on the cutting edge of AI tooling: You’ll help push the boundary of what’s feasible with modern AI-powered software development tools (Cursor, Windsurf), keep up with the regular drumbeat of AI advances, and find new and exciting ways to build and explore new features faster., • Participate in a fast-paced iterative environment: Collaborate closely with design, product, and beyond to deliver and iterate on impressive features and prototypes at world-class pace., • Keep code clean and well-tested: Maintain clean, efficient, and tested code with clear documentation for both peers and future reference., • Review, refine, and grow: Actively participate in peer reviews, CI/CD processes, and a growth-minded engineering culture, where you continuously seek to level up your technical skills., • Be a team player: Sometimes you’ll be iterating on ML pipelines; other times you’ll be refining a frontend component or fixing a tricky bug. We need someone who’s excited about the full product journey and moving together as one. Skills & experience: • Industry Experience (2+ years): Prior experience contributing to impactful products in fast-paced or startup environments, with an understanding of both scale and quality from larger tech organisations., • Hands-On Full Stack Skills: Proficiency in React/Typescript and/or Python (RESTful APIs, data pipelines), plus comfort with deploying and maintaining services on modern cloud platforms (GCP preferred, AWS or Azure also fine)., • Applied AI/ML Skills: First-hand experience building and delivering AI/ML features to real users, and an insatiable curiosity to keep up with emerging technologies and trends, • Team-Oriented Mindset: Strong communication skills for explaining complex ideas to technical and non-technical audiences, and a passion for collaborating within cross-functional teams., • Passion and Pride in Shipping: A do-whatever-it-takes attitude to deliver against important business goals that help the entire team win, • Pragmatic Best Practices: An overarching desire to build efficient, scalable, and maintainable code, while learning the tradeoffs between technical debt and delivery speed What we look for: We’re a great bunch but we have some "Euph" cultural non-negotiables. To do well here you will: • Thrive in fast-paced, feedback-rich environments, • Take your work seriously, but not yourself, • Be proactive, playful, and deeply curious, • Want to build something that matters, • Be willing to “do what it takes” What you’ll get: • Salary between £90k - £110k dependent on experience, • Remote-first setup with optional shared work space pass and hubs in London (We will only consider UK or Europe based candidates, with a preference for those closer to London), • Apple devices and the best AI tooling, • Private healthcare via Vitality, • 3% employer pension contribution (min 3% employee contribution), • Meaningful early-stage share opportunities, • 25 days holiday per year, plus bank holidays, • Career rocket fuel - real growth, real ownership, real impact

LocationSheffield, UK , United Kingdom# Full stack Developer at N Consulting LtdLocationSheffield, UK , United KingdomSalary£400 - £500 /dayJob TypeContractDate PostedFebruary 16th, 2026Apply NowJob Title: Senior API Engineer / Backend Architect – Payments Modernization Location: UK (Hybrid –

A leading luxury tech brand in the UK is seeking a Principal Engineer/Architect to design and implement scalable backend systems for their e-commerce platform.The ideal candidate will have 7–8+ years of experience and expertise in Ruby development, building APIs, and mentoring junior engineers.Thi

This role goes beyond traditional backend engineering. If you want your engineering work to have real-world impact, this is where it happens.

A leading global financial services firm in London seeks a Software Engineer III to join their Accelerator business.

Senior Backend Software Engineer. Lead technical direction within a senior squad, mentoring junior engineers and defining engineering standards for a rapidly growing 100-person team. Design and scale backend systems for item discovery, search, and complex multi-continent payment and credit workflows

A leading brand platform company in London is seeking a Senior Backend Engineer to join a collaborative team. Candidates should have strong experience in backend development with a focus on PHP, as well as a deep understanding of API design and relational databases. This role involves designing and

API design and backend architecture.

Backend engineering is foundational across all OneSuite — providing the APIs, integration layers, orchestration runtimes, and backend systems that power every charter, from Agent Studio to AOE, DFP, Channels, and SRE. This is a hands‑on engineering role — you will write production‑grade code

Mid-Level Full Stack Engineer Backend-Lean TypeScript, Node. They've built a reputation for technical excellence and an incredible culture, and right now they're looking for a Mid-Level Full Stack Engineer with a backend lean to join one of their long-term client projects. It's the perfect environme

Shape our backend architecture. Engineering at Plain is about much more than moving tickets from left to right - it’s about owning and solving problems end to end, from infrastructure decisions to feature design to button copy. Build the tools that every engineer at Plain depends on to ship and op

As a Senior Product Engineer, you will own features end-to-end, architecting scalable backend systems that process 250,000+ events per minute. Work under VP Engineering Philip Beevers, who previously led 600+ engineers at Google Cloud and served as SVP at Snyk. Re-engineer existing backend infrastru

We’re looking for a Mid Level Product Engineer(Backend) to join our growing team of backend engineers. We’re looking for someone who loves solving consumer problems with straightforward technical solutions and is happy to jump in and wear many hats (lots of the backend team also work on Infrastr

A modern travel tech company based in London is seeking a Travel Support Engineer (Backend) to create impactful and user-friendly tools.

A tech startup is seeking a Software Engineer to build and maintain a shared platform that supports AI solutions. You will develop APIs, frameworks, and data services while collaborating with product engineers to enhance functionality.

As a Backend/API Engineer on Stripe's Payouts team, you'll build the systems that move money from Stripe to millions of business bank accounts worldwide. You'll design reliable payout APIs, improve speed and accuracy of fund transfers, and work on complex problems at the intersection of engineering

Help build a great engineering culture with your engineering colleagues across the company. Senior Backend Software Engineer. We are looking for talented and experienced Senior Software Engineers to work on our range of successful eCommerce sites and help sustain our trajectory of rapid growth.

Morgan Personal Investing, you will be a highly skilled hands‑on Backend Engineer for the Platform team dedicated to building a Spring Boot based framework and robust libraries that support our product engineering teams. Collaborate closely with product engineering teams to understand their needs

A leading ski holiday company in the UK is seeking a backend developer to join their Supply Team.