Back end developer jobs in Reino Unido

Senior Developer (Node/React) Are you a pragmatic, innovative, and self-motivated problem solver with a passion for building scalable, high-performing software? We're looking for a Senior Full Stack Engineer, with strong skills in Node and React, to join a high-performing product team working on a global, high-traffic eCommerce platform handling thousands of transactions daily. You'll play a key role in designing and developing end-to-end solutions, collaborating closely with both technical and business teams to deliver new features that drive growth and enhance the customer experience. What You'll Do • Build and maintain robust, scalable applications across the full stack (Node/React/TypeScript), • Collaborate in an agile team environment to deliver clean, maintainable, and testable code, • Influence architectural decisions and technology choices, • Optimise Front End and Back End performance to ensure fast, seamless user experiences, • Proven experience as a Full Stack Engineer or similar role, • Expertise in React, JavaScript/TypeScript, HTML, CSS, and responsive design principles, • Strong understanding of Back End technologies and best practices, • Passion for writing clean, well-tested code, • Experience with cloud platforms (AWS, Azure, or GCP), • Excellent communication skills and the ability to explain technical ideas clearly, • A mindset focused on scalability, maintainability, and continuous learning, • Degree in Computer Science or a related field, • Experience in eCommerce sectors, • Work on a product with global reach and real-world impact, • Have a voice in how things are built - your ideas matter, • Collaborative, forward-thinking engineering culture Salary: £80k/per annum

We are back with another tech-for-good role! 🚀 We’ve just partnered with a fast-growing London start-up building something genuinely world-first in the tech-for-good space, and it’s about to scale fast. Backed by £1.3M in investment (and climbing), they’re expanding their engineering team and are on the hunt for a Senior Developer to help shape the future of their platform. This is your chance to work where cutting-edge fintech meets real-world impact. Building solutions that prioritise security, transparency, and long-term social good. This role will allow you to own the end-to-end delivery of complex features, building and scaling high-quality solutions using Node.js and React.js while playing a key role in architecture and system design decisions. Who are you? • Strong experience with both Node.JS and React (ideally stronger on the backend side), • Experience working on a 0-1 development cycle, • Experience with software design principles and architectural patterns., • Ideally someone who has worked on a unique start-up environment and loves it! Additional Information: • This role is paying between 85k-95k GBP per year depending on experience + equity, • Their office is based in Shoreditch, London (please note this is an onsite position - so easy commute to London or open to relocation from elsewhere in the UK is required), • Other additional benefits available! Want to work within a start-up looking to make a big change? Apply today!

Full Stack Engineer (Web & Data) Industry: Technology / Digital Products / Automation & Analytics Location: London, UK (Hybrid 1-2 days) Are you passionate about developing seamless, data-driven digital experiences? An established digital transformation and technology solutions provider is looking for a Full Stack Engineer (Web & Data) to join its growing Automation & Analytics team in London. This hybrid role blends web development with data engineering, offering exposure to everything from dynamic front‑end interfaces and API development to cloud‑based data pipelines and analytics platforms. If you love combining creativity in web development with the logic and scalability of data engineering, this is your opportunity to grow in a cutting‑edge environment. What You’ll Do • Design, develop, and maintain end‑to‑end web applications—from intuitive front‑end interfaces to robust back‑end servers and APIs., • Build and optimise data platforms and ETL/ELT pipelines supporting analytics and AI‑driven applications., • Prepare and structure data for dashboards, reporting, and machine learning solutions., • Collaborate with consultants, data scientists, and project teams to deliver reliable and scalable systems., • Manage CI/CD deployments and version control across hybrid AWS and Azure environments., • Analyse system performance, troubleshoot issues, and continuously improve existing solutions. Essential: • 1–2 years of experience as a Full Stack Engineer, Web Developer, or Data Engineer., • Bachelor’s or Master’s degree in Computer Science, Engineering, or a STEM field., • Proficiency in Python and SQL for back‑end logic and data operations., • Hands‑on experience with front‑end frameworks such as React or Next.js., • Experience creating and maintaining APIs, working with relational/non‑relational databases., • Familiarity with data orchestration tools (e.g. Airflow) and data warehouse/lake design., • Practical knowledge of AWS or Azure cloud environments., • Strong understanding of Git, CI/CD, and modern deployment practices., • Experience with WordPress/PHP or Streamlit for rapid web applications., • Familiarity with dbt, Power BI, or similar data analytics tools., • Understanding of machine learning, AI integration, and vector databases., • Interest in UI design or Agile project delivery. This role offers a rare opportunity to develop both front‑end and data engineering capabilities within a forward‑thinking digital solutions team. You’ll gain hands‑on experience with next‑generation technology stacks, cross‑functional collaboration, and projects shaping how global enterprises use data and automation. Please apply with your latest CV showing all relevant experience and email your CV with your salary expectations, availability to interview and start working Dr Marina Economidou, Executive Solutions Consultant

Senior Software Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers on a daily basis. As a Senior Java Engineer for an loyalty program team, you will have the opportunity to make a massive impact on traveller's behaviour and booking experience. Specifically, you’ll be responsible for driving improvements to loyalty offerings that enable millions of business & leisure travellers. What You’ll Do: • Designing and implementing APIs and core services, • Developing models and business logic, • Building out impactful product features, • Ensure the quality of the features you built, follow-up on usage/issues post release., • Work closely with product and design team to deliver new features that align with the needs of the business, • Provide technical leadership and mentoring to other engineers on the team, • Contribute and drive frameworks that lead to significant user experience improvements, • Assist the team in understanding and adopting new technologies What We're Looking For: • Strong programming skills and CS fundamentals combined with 5+ years of experience building products, • Deep architecture and API design skills to build core services and new product features, • Strong sense of ownership demonstrated through shipping production-quality code equipped with testing, monitoring and documentation, • Passion for solving problems and learning new tools and technologies, • Excellent communication skills working with stakeholders and domain experts across the company to design solutions to user problems, • Ability to thrive in a fast-paced environment, • Prior experience working at startups and/or on consumer-facing products, • Experience with Java, AWS and/or distributed systems is a plus, • Experience with Hibernate or similar ORM technologies is a plus, • Experience with Spring Framework is a plus

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly influence how high-profile brands connect with their audiences. Who we’re looking for We’re looking for a front-end developer who’s motivated, curious, and excited to create impactful e-commerce experiences. You’ll be joining at an early stage, which means plenty of opportunity to shape how we work, grow your skills, and leave your mark. If you care about craftsmanship, love solving complex problems, and want to work directly with well-known brands, we’d love to hear from you. Experience We’re looking for someone who has: • 2-3+ years of experience working in a web development agency or in-house for a brand, • Experience developing Shopify themes, • Strong knowledge of modern JavaScript, • Ability to write well-structured, semantic, and accessible HTML, • Confidence writing framework-agnostic, performance-focused JavaScript, • Awareness of WCAG accessibility guidelines, • Solid understanding of front-end performance best practices, • Strong attention to detail when building polished, complex interactions, • A positive, problem-solving mindset and broad technical curiosity, • Experience with modern web tooling (transpilers, linters, build and CI tools, etc.), • Experience with Git and ability to collaborate in a dev team, • Awareness of modern and emerging browser APIs, • Familiarity with progressive enhancement principles Nice to have Not essential, but any of these would be a bonus: • Experience with a front-end/full-stack framework like React or Remix, • Experience with a back-end language, framework, or backend platform like Supabase, • Experience setting up or running A/B tests, • Experience building with a headless CMS, • Previous agency experience, delivering websites for multiple clients, • Deep knowledge in one or more areas such as animation, performance, or accessibility Benefits • Fully remote, forever - work from anywhere in the UK, with flexible hours, • Generous annual leave - 28 days + bank holidays, • Top equipment - high-spec Apple machine provided, • Salary DOE - competitive for your level of experience

Senior Python Developer / Engineer (Python AWS) London / WFH to £130k Are you a Python technologist with experience of Front Office trading environments? You could be progressing your career on the Asset Management side of a global Japanese bank as they expand this product offering within the UK. As a Senior Python Developer you will take ownership of a Greenfield trading systems build, in an impactful role that will directly affect the PnL and success of the business. You'll design, build and maintain highly performant, robust, scalable trading systems including cloud infrastructure, collaborating with front, middle and back office teams to discover requirements and deliver technical solutions that drive business growth. You will lead and deliver high profile software projects and champion best practices in software engineering, DevOps and cloud architecture across the wider technology team. Location / WFH: You'll be based in the London, Bank office three days a week with flexibility to work from home twice a week. About you: • You have advanced backend Python development skills, • You have a strong knowledge of AWS, DevOps practices, CI/CD, Containerisation, • You're comfortable with occasional front end work, • You have experience of owning the end-to-end software delivery lifecycle, are proactive in bringing solutions problems identified, • You have experience of working in Front Office trading environments, • You're pragmatic with great communication skills What's in it for you: As a Senior Python Developer / Engineer you will earn a competitive package including: • Salary to £130k + bonus, • Pension, • Career advancement Apply now to find out more about this Senior Python Developer / Engineer (Python AWS) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

We are partnered with a leading fixed income hedge fund in London seeking a talented C# Developer to join their front-office technology team. The fund has a strong and consistent performance track record and has invested heavily in its quant and tech capabilities as part of a wider growth plan. You’ll work closely with the quant team as well as traders and other front office stakeholders to build and enhance core trading systems, research tooling, and data-driven applications. Projects span proprietary trading system development, front-office tools, and the application of machine learning across the investment process. The environment is fast-paced, collaborative, and a highly technical one where code quality and low latent systems are a top priority. This team has a history of developing people’s careers and offers a broad and exciting range of new and existing projects for hires to get stuck into. These will consist of both back-end and front-end projects with 1 week sprints and release cycles, PR review processes and continuous development to master. This is a team we have worked with for a number of years and have a close, direct working relationship with the CTO. We have placed in the team multiple times so are able to go into detail regarding set up of the team and role The team primarily uses C# for core systems and Python within quant and data teams. C# and .Net experience and knowledge are essential for this role, but the fund will consider exceptional candidates who work with other likeminded OOP languages (C++, Java, Go). When it comes to financial markets experience, there is a particular interest in Fixed Income and Rates, but these are not essential, they will be open to other asset classes. If you are working in a front office environment or experienced with business critical and very low latent systems, then this role could be a good fit. The fund looks for low-ego, high-performing self-starters who enjoy ownership, teamwork, and delivering pragmatic, commercial solutions. The CTO is particularly interested in candidates that are passionate about technology and want to grow and learn within a fast paced and highly performant environment. You’ll have direct exposure to PMs, quants, and the CTO, and will contribute across design, architecture, and production support. Requirements: • Strong academic background in Computer Science or related field, • Excellent programming skills in C# and .Net, • Experience working with large data sets, • 1–5 years’ experience in a relevant software engineering role, • Interest in finance; fixed income or systematic experience a plus, • Positive, pragmatic, and collaborative mindset This is a rare opportunity to join a high-performing, technology-driven hedge fund with a genuinely collegiate culture. Due to demand, this role is advertised anonymously. If preferred, submit a blank application and we will contact you before requesting a CV. We can only respond to highly qualified candidates.

Role Outline Do you want to help build the future of humanoid robots? We are looking for skilled Senior Full Stack Software Developers to join our software development team. You will work closely with cross-functional teams to develop, maintain, and enhance both our cloud based web apps (including front-end and back-end components), as well as local software functionality executing on-robot. In this role, you will leverage your expertise to build scalable and user-friendly solutions that align with business goals. Creativity, problem-solving, and a passion for delivering high-quality code are key elements of this role. We’re seeking developers with mid to senior level of experience who will rapidly integrate into our team and deliver valuable contributions. Our internal motto is “Be Wow”, our robots are wow and we seek engineers who embody this in their work by building intuitive, effective systems that delight users and drive success. Main Responsibilities • Develop and maintain full-stack web applications, • Develop and maintain on-robot software systems, • Collaborate with cross-functional teams, • Debug, maintain and extend the codebase Challenges • Ensuring our cloud platform provides a smooth user experience while handling complex business logic., • Ensuring robots function reliably and repeatably in their interaction with our cloud services and their local execution of associated behaviours., • Working within an existing large and complex codebase., • Working in a fast-paced environment with evolving project scopes., • Achieving functional goals with the constraints of complex real-life hardware. Opportunities • Working at the forefront of the rapidly growing field of humanoid robotics., • Working in a creative environment with highly skilled and committed colleagues., • Work across a broad technical field with ample variety in tasks and opportunity to deepen your knowledge and experience in many areas., • Working on a proven, commercially successful product consistently shipping units., • Working on a modern Linux-based stack prioritizing performance and developer ergonomics over industry conventions., • See the fruit of your labour! Interact with customers using our robots and see the wonder and joy of people reacting to robot behaviors you created., • Gain guidance from experienced developers, designers, long-term customers and a mature yet fast-moving codebase. Qualifications, Knowledge, Key Skills and Experience Essential: • Experience with TypeScript and React for building dynamic, responsive front-end applications., • Back-end development experience in Python, particularly with frameworks like Django or Flask, or equivalent experience in other back-end languages like Node.js with Express., • Familiarity with Linux system development, • Familiarity with designing and consuming RESTful APIs., • Experience with Git and collaborative version control practices., • Experience in writing unit-tested, maintainable, and scalable code., • Understanding of CI/CD pipelines., • Experience building products with Large Language Models (LLMs) and integrating them into production environments., • Experience developing in C++ and/or Rust, • Experience in CI/CD pipelines to automate testing, deployment, and release management., • Knowledge of cloud platforms (AWS, Azure, etc.)., • Experience with Docker, Kubernetes and containerized application deployment., • Experience working on real time systems such as video games or IoT installations., • Exposure to embedded systems or hardware integration, with a focus on optimizing interactions between software and physical components. About Engineered Arts Engineered Arts is the leading manufacturer of full-size humanoid robots used for entertainment, education and communication. With 20 years of hardware and software development, our robots have been sold in over 30 countries worldwide with customers such as NASA, PwC, Meta and many more. Our Ameca robot is well known as ‘the face of AI’ and a social media viral success, taking advantage of the generative AI craze. Along with our ultra-realistic Mesmer range of animated figures our robots continue to surprise and excite visitors at museums, theme parks, visitor attractions and trade shows as well as aid leading universities with AI and robotics research. Our robots are poised to break into the future mega-expansion service robot segment, with applications such as front of house, receptions, check-in desks, information points and PoS. We are also exploring how our humanoid robot technology can disrupt other robotics sectors by expanding their applications into areas such as hospitality, front desk and healthcare industries. We are a team of dedicated engineers and creatives striving to develop the very best experiences for our customers. Our internal motto is ‘Be Wow’, everything we do is fun, entertaining or surprising to encounter. We always push the boundaries of what is possible in humanoid robotics, researching and developing new systems and techniques to further their appeal. We explore and challenge the human perception of robots as well as the fear and discomfort and the excitement and joy life-like mechanical humanoids present. “Diversity & Inclusion at Engineered Arts At Engineered Arts, innovation is at the core of everything we do — and we believe true innovation only happens when diverse minds come together. We are committed to building a workplace where people of all backgrounds, identities, and perspectives feel welcome, supported, and empowered to contribute. Whether you’re an engineer, developer, or creative thinker, we value what makes you unique. We actively promote inclusion across our hiring, design, and development practices, and we’re always looking for new ways to reflect the world around us — in our team, our robots, and our ideas. Because building the future means including everyone in it.” We are committed to equal opportunity in employment and comply with all applicable non-discrimination and equal employment laws in the regions where we operate.

London or Manchester (Hybrid) | £50,000 – £80,000 + Equity About us At the forefront of using investment portfolios as security for access to credit, Firenze is emerging as the category defining leader in what is known as “Lombard lending”. We already work with some of the UK’s leading wealth management firms to unlock access to what has historically only been available to UHNW clients of private banks. Backed by top tier investors, Firenze is now scaling the team to continue to ensure our credit infrastructure is underpinned by innovation, cutting-edge technology, and an unwavering commitment to driving client outcomes. Role Overview As a Full Stack Software Engineer, you’ll design, build, and deliver customer-facing features across our greenfield platform. You’ll work end-to-end—crafting TypeScript frontends and robust Java back-ends—while learning from experienced engineers and contributing to a modern, scalable architecture. This is a hands-on role with plenty of opportunity to develop your technical depth, gain exposure to DevOps, cloud, and observability practices, and help define how we build software at Firenze. With no legacy systems, you’ll be shaping our platform from the ground up and growing alongside a team that values mentorship, learning, and engineering excellence. Key Responsibilities • Feature Delivery: Collaborate with senior engineers to deliver new features from design to production., • Back-End Engineering (Java): Build APIs and microservices using Java (Spring Boot, Micronaut, or Quarkus), with guidance on best practices for performance and reliability., • Front-End Engineering (TypeScript – Nuxt/Vue): Develop responsive, accessible UIs with strong component and state management., • Data & Integration: Work with PostgreSQL, caching (Redis), and messaging (Kafka/SQS) — learning how to design resilient data flows., • Quality & Testing: Contribute to our testing culture (JUnit, Playwright, CI pipelines) and learn how to scale reliable delivery., • Performance & Observability: Gain hands-on experience with monitoring tools and learn how to build observable systems from day one., • Documentation & Developer Experience: Help create clear technical docs and reusable tooling that makes development smoother for everyone., • Cross-Functional Collaboration: Partner with product, design, and experienced engineers to break down work, estimate effectively, and deliver iteratively. Requirements • Experience: 3+ years of professional software engineering, including full-stack work on production systems (fintech or startup experience a plus)., • Java Proficiency: Hands-on experience building APIs/microservices in modern Java (Spring Boot or similar)., • TypeScript & Vue: Solid experience developing production-grade web apps with TypeScript and Vue/Nuxt., • Web Fundamentals: Good grasp of HTML/CSS, accessibility (WCAG), and secure web app design., • Databases & Messaging: Familiarity with PostgreSQL and at least one of Redis, Kafka, or SQS., • Testing Mindset: Comfortable writing and running tests; familiar with CI pipelines (GitHub Actions, GitLab CI)., • Cloud & Containers: Exposure to AWS or another cloud platform and Docker. (Kubernetes or ECS a plus.), • Growth Mindset: Curiosity to learn new technologies, seek feedback, and develop alongside experienced teammates. Bonus Skills • Interest in event-driven or distributed systems (Kafka, RabbitMQ, SQS)., • Exposure to DDD, CQRS, or hexagonal architectures., • Experience with observability tools (OpenTelemetry, Prometheus, Grafana)., • Familiarity with multi-tenant SaaS, RBAC, or performance tuning (JVM, SQL). Why Join Us? • Learn from experienced engineers: Work side-by-side with senior teammates who value teaching, pair programming, and open design discussions., • Accelerate your growth: Gain exposure to architecture, DevOps, security, and observability while contributing to production systems early on., • Impact: Shape a greenfield fintech platform with real business influence and visibility., • Collaboration: Join a supportive, high-performing team that values curiosity, innovation, and shared ownership., • Career Development: Clear progression opportunities as Firenze scales — move towards senior or specialist roles with mentorship and hands-on experience., • Competitive Salary (£50,000-£80,000) depending on experience, plus equity participation. You’ll be part of a hybrid team based in London or Manchester, combining the best of in-person collaboration with the flexibility of remote work. You’ll join a culture that values continuous learning, feedback, and building things the right way — not the fast way.

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s, developing microservices and upgrading existing systems. Experience needed – • Java 21, • TDD, • AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? • Hybrid working(1-2 days a week in the office), • Equity, • 25 days annual leave, • Solid pension, • And more If you’re interested please apply or send your CV to to apply. Sponsorship isn’t available. Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL |

Java Developer Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise with advanced software engineering to manage institutional capital globally. What You’ll Do • Design and build high impact internal systems using Java, • Own projects end-to-end: from architecture to deployment, • Collaborate with analysts to solve real-world business problems, • Support and mentor junior team members on coding and data skills, • Deliver clean, maintainable, and scalable solutions Who They’re Looking For • 1-5 years of experience with Java (essential) and Python, • Familiarity with databases, (e.g. SQL Server, Postgres), • Experience with developing, testing, or deploying with cloud providers (e.g. AWS,, • GCP, Azure), • Excellent problem-solving skills and clean coding habits, • Prior experience in finance, or high-performance environments 📩 Apply now! If you don't hear back within three working days, unfortunately, your application has not been successful.

We’re looking for an experienced.Asia, Africa, and the Middle East.This role is part of the Blade function, delivering strategic initiatives that make a real impact.Prior banking experience is highly desirable.As a senior developer, you’ll be driving our platform forwards and delivering quality

A leading IT Consultancy is seeking a Python AWS Backend Engineer Developer on a contract basis. Strong understanding of AWS cloud infrastructure, with proficiency in Python for Back End development.

We’re now looking for a Back-End Developer to join us on a full-time, permanent basis, working 37 hours per week.

Senior Go Developer 6 months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering life cycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker, and Kafka, working closely with cross-functional teams to build scalable, reliable, and resilient platforms. You'll also play a key role in optimising system performance, improving reliability, and ensuring scalability, while contributing to code reviews, design discussions, and knowledge sharing across the engineering function. Senior Go Developer - Key Requirements: • Strong commercial experience in Back End development, • Advanced skills in Go (Golang), with proven expertise in AWS, Kubernetes, and Docker, • End-to-end software engineering experience, including system design and architecture, • Background in complex, large-scale, data-driven applications, • Product-focused approach, ideally within fast-paced tech organisations (start-ups or scale-ups), • Knowledge of Kafka, Cassandra, gRPC, and microservices is a strong advantage We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.

Agentic AI Developer 6-month contract - Inside IR35 - day rate negotiable London based - hybrid working - 2/3 days on site Job Description Summary Join our global Centre of Excellence as an AI Developer, contributing to the design, development, and deployment of intelligent agentic AI solutions across the organization and our clients. As part of a collaborative, cross-functional team, you will work alongside AI Engineers, Data Engineers, and Automation Engineers to deliver innovative, scalable solutions that drive measurable business impact. This hands-on role requires robust software development skills, a solid foundation in artificial intelligence and web technologies, and proficiency in integrating AI capabilities with modern applications. You will focus on building, customizing, and integrating agentic AI applications-ranging from standalone agents to web-based solutions-while ensuring secure, reliable, and efficient interoperability with enterprise platforms and data sources. You will be responsible for translating business requirements into functional software solutions, rapidly prototyping and iterating on ideas, and collaborating closely with research, product, and engineering teams to deliver high-value projects. Key Responsibilities • Build, customize, and deploy agentic AI applications and solutions using platforms such as Azure AI Foundry, Power Platform's Copilot Studio, AWS Bedrock Agent Core, or Google Vertex., • Develop web applications (Front End and Back End) to facilitate agent interactions, user experiences, and business workflows., • Collaborate with AI Engineers, Data Engineers, and Automation Engineers to integrate AI models, data pipelines, and automation capabilities into applications., • Implement effective prompt engineering and optimization strategies to enhance agent performance, reliability, and accuracy., • Engage with internal stakeholders and clients to gather requirements, provide technical expertise, and deliver user-centric AI solutions., • Design, develop, and maintain APIs for secure integration of AI-driven functionalities with enterprise systems (CRM, ERP, HRIS, finance, etc.)., • Support data ingestion, processing, and integration activities to ensure accurate, timely delivery of data for AI applications., • Work with vector databases, semantic search, and knowledge management tools to enable intelligent agent capabilities., • Deploy and manage AI solutions and web applications within cloud environments (Azure, AWS, GCP), ensuring scalability and performance., • Apply DevOps and MLOps practices for efficient development, deployment, and life cycle management of AI-enabled applications., • Ensure all AI and software solutions adhere to security, privacy, and compliance requirements (GDPR, HIPAA, etc.)., • Identify and proactively mitigate risks related to AI deployments, including ethical considerations and bias., • Solid understanding of artificial intelligence concepts, agentic systems, and machine learning fundamentals., • Experience building and integrating intelligent agents, conversational bots, or AI-powered web applications., • Proficiency in Python for AI/model integration and rapid prototyping; familiarity with frameworks such as FastAPI, Flask, Django, or similar., • Strong experience in Front End development (JavaScript, TypeScript, React, Angular, or Vue.js) for building interactive web applications and UIs., • Knowledge of Back End development (Node.js, Python, Java, or C#) for robust API and service creation., • Familiarity with data engineering concepts, data integration, and handling structured/unstructured datasets., • Experience with vector databases and semantic search for agentic AI knowledge management., • Proven ability to develop secure APIs and integrate solutions with enterprise platforms., • Working knowledge of cloud computing platforms (Azure, AWS, GCP) and deploying web/AI applications in cloud environments., • Awareness of DevOps/MLOps best practices for automated deployment, monitoring, and version control., • Understanding of security, privacy, and compliance requirements for AI and web applications., • Ability to collaborate effectively in cross-functional teams, translating business needs into technical solutions., • Strong analytical, problem-solving, and organizational skills, with attention to detail., • Typically 3-5 years of experience developing AI-driven applications, intelligent agents, or web solutions in enterprise environments., • Proven hands-on expertise in agentic AI development, prompt engineering, and integrating AI models into web applications., • Demonstrated experience in Front End and Back End software development and building scalable web platforms., • Solid experience in API development and secure integration with enterprise systems., • Experience supporting data integration, ingestion, and management for AI applications., • Practical experience deploying and scaling applications in cloud environments (Azure, AWS, or GCP)., • Familiarity with DevOps/MLOps practices for development life cycle management. This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: • Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services, including trading platforms, investment systems, and risk management tools., • Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure., • Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment., • Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security., • Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs., • Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services., • Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems., • Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability., • Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications., • Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies., • Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment., • Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics., • Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems., • Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices., • Experience with database systems (relational and NoSQL) and working with financial data., • Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation)., • Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios., • Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment., • Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions., • Knowledge of financial industry regulations and standards, particularly around data security and privacy., • Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing., • Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform

Software Developer (Camunda) - Contract role - Hybrid working/London - £400.00 per day Synergize Consulting are now hiring for a Software Developer to work at a leading consultancy client of ours on a contract basis. The successful candidate will join a dynamic engineering team and will contribute to the design, development, and deployment of business process automation solutions using the Camunda BPM platform. Responsibilities include: • Integrate Camunda with microservices, REST APIs, and external systems., • Develop custom Java delegates and external task workers., • Collaborate with business stakeholders to understand process requirements and translate them into technical solutions., • Design and implement BPMN workflows, • Optimise and troubleshoot existing Camunda workflows and deployments., • Maintain documentation for workflows, decision tables, and integration points. Experience required: • A significant background in software development, which includes demonstrable experience in using Camunda BPM, ideally up to version 7 or 8., • Back End software development skills using Java, Spring Boot and RESTful API's., • Working knowledge of BPMN and DMN standards, • Familiarity with Docker, Kubernetes, and cloud platforms (including AWS, Azure, GCP), • Understanding of microservices architecture and event-driven systems., • Previous experience in the financial sector would be desirable but not essential., • Excellent communication skills, both written and verbal. If you are looking to take the next exciting step in your IT career, please send in your CV for immediate consideration.

Sanderson Government and Defence are supporting a commercial supplier to government in their search for a Cloud Application Developer to work out of either London, Manchester or Gloucestershire. This client, aside from offering a very strong package, offer an excellent development programme, with a real willingness to support both financially and otherwise. Tech wise, we have requirement for both Java and Python Back End languages, and cloud experience would also be very helpful indeed. AWS is by far the most prevalent, but we will look at individuals with transferable experience in this area. Role Responsibilities • Collaborate with project stakeholders to develop a strong understanding of the business environment, technical landscape, and organisational strategic objectives., • Advise customers on emerging technologies and best-practice methodologies, designing and delivering innovative, automated solutions to complex challenges., • Interpret and apply security policies, ensuring all implemented solutions meet required security standards., • Proven experience with cloud platforms, including AWS, Azure, and Azure Virtual Desktop., • Proficiency in programming languages such as Python, React, and Go., • Experience deploying applications within cloud architectures,, • Hands-on experience with web application services., • Familiarity with Test-Driven Development and Behaviour-Driven Development, • Experience in API design, development, and integration., • Knowledge of monitoring and observability systems., • Understanding of modern digital delivery processes and agile methodologies., • Working knowledge of the Atlassian toolset., • Experience with JavaScript Front End frameworks and core Front End technologies., • Strong understanding of asynchronous programming concepts and associated design considerations., • Knowledge of database schema design and query languages., • Experience with source control and version management systems., • Understanding of deploying and configuring AWS components in environments with strict security requirements. If you're interested in the above, apply or reach out to (see below) Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

React Developer - Fixed Income eTrading We are seeking experienced React Developers to join the Fixed Income eTrading technology team at a global investment bank. This position is part of a high-profile, multi-year transformation initiative aimed at modernising and scaling a next-generation electronic trading platform for Fixed Income products. The role is to help build cutting edge Front End systems for Fixed Income eTrading, including Rates, Credit, and Bonds. You'll work closely with world-class technologists and domain experts to deliver scalable, high-performance UIs that support Real Time trading and analytics. Key Responsibilities • Design and develop responsive, low-latency Front End trading systems using React., • Build dashboards and visualisation tools for Fixed Income market data and trade execution., • Collaborate with traders, quants, and Back End engineers to deliver seamless UI experiences., • Expertise in React.js and modern JavaScript (ES6+), • Proven experience delivering Front End applications in electronic trading environments, • Strong understanding of performance optimisation and low-latency UI design, • Experience with Real Time data technologies (WebSockets, FIX, etc.), • Familiarity with containerized Front End platforms such as OpenFin is a plus, • Prior exposure to Fixed Income products (Rates, Credit, Bonds) or other capital markets, • Experience in data visualisation, charting and grid tools like AG Grid, Highcharts etc, • Ability to thrive in fast-paced, Front Office environments with direct business interaction

Senior Developer - Healthcare Projects.January (BPSS clearance required before start; SC likely to follow).Key Responsibilities & Tech Stack:.Healthcare Frontend Toolkit and Design System.Develop back-end services primarily in.Maintain and enhance legacy services using.AWS, Azure, SQL Server, Po

Java Developer - £100,000 - £140,000 – London/Hybrid Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL | Are you a Java Developer who wants to have a voice within the team? Maybe you want to join a fast growing company with lots of progression. If so I have a role for you. Opus have partnered with a VC Backed Fintech start-up who are looking to grow their London office. They are growing quickly so are looking for Java Developers of all levels from Mid – Tech Lead to join the team. They are currently about 100 people strong and looking to double this within the next 12 months. As a Developer you will be building and maintaining high performing back end systems. The sort of projects you will be involved in is building API’s, developing microservices and upgrading existing systems. Experience needed – • Java 21, • TDD, • AWS They’re also looking for people who have worked within a fast paced Startup/scaleup company. What is in it for you? • Hybrid working(1-2 days a week in the office), • Equity, • 25 days annual leave, • Solid pension, • And more If you’re interested please apply or send your CV to to apply. Sponsorship isn’t available. Java 21 | Microservices | Spring boot | AWS | Startup | Scaleup | Fintech | Banking | Amazon Web Services | PostgreSQL |

We are partnered with a leading fixed income hedge fund in London seeking a talented C# Developer to join their front-office technology team. The fund has a strong and consistent performance track record and has invested heavily in its quant and tech capabilities as part of a wider growth plan. You’ll work closely with the quant team as well as traders and other front office stakeholders to build and enhance core trading systems, research tooling, and data-driven applications. Projects span proprietary trading system development, front-office tools, and the application of machine learning across the investment process. The environment is fast-paced, collaborative, and a highly technical one where code quality and low latent systems are a top priority. This team has a history of developing people’s careers and offers a broad and exciting range of new and existing projects for hires to get stuck into. These will consist of both back-end and front-end projects with 1 week sprints and release cycles, PR review processes and continuous development to master. This is a team we have worked with for a number of years and have a close, direct working relationship with the CTO. We have placed in the team multiple times so are able to go into detail regarding set up of the team and role The team primarily uses C# for core systems and Python within quant and data teams. C# and .Net experience and knowledge are essential for this role, but the fund will consider exceptional candidates who work with other likeminded OOP languages (C++, Java, Go). When it comes to financial markets experience, there is a particular interest in Fixed Income and Rates, but these are not essential, they will be open to other asset classes. If you are working in a front office environment or experienced with business critical and very low latent systems, then this role could be a good fit. The fund looks for low-ego, high-performing self-starters who enjoy ownership, teamwork, and delivering pragmatic, commercial solutions. The CTO is particularly interested in candidates that are passionate about technology and want to grow and learn within a fast paced and highly performant environment. You’ll have direct exposure to PMs, quants, and the CTO, and will contribute across design, architecture, and production support. Requirements: • Strong academic background in Computer Science or related field, • Excellent programming skills in C# and .Net, • Experience working with large data sets, • 1–5 years’ experience in a relevant software engineering role, • Interest in finance; fixed income or systematic experience a plus, • Positive, pragmatic, and collaborative mindset This is a rare opportunity to join a high-performing, technology-driven hedge fund with a genuinely collegiate culture. Due to demand, this role is advertised anonymously. If preferred, submit a blank application and we will contact you before requesting a CV. We can only respond to highly qualified candidates.

Company Overview Finseta is an AIM listed E-Money Institution providing FX & Payment Services to corporate and private clients globally. We are a fast-growing multi-faceted business with a suite of alternative banking products and have built and developed our own in-house technology to facilitate this. We have a proven track record of delivering excellent services to our clients and have big growth aspirations to become the go-to-digital account for businesses and High Net Worth individuals trading internationally. Team Overview You'll join a small engineering team where you'll have real ownership from day one. We move quickly, but do things properly. For the features we build, quality is non-negotiable. We work side by side with our colleagues in Compliance, Settlements and Business Development, as well as our clients, to make sure we're solving the right problems. The things you build will ship, get used, and make a difference, that is guaranteed. If you're looking for autonomy, responsibility, and the chance to shape both the product and the engineering culture as we grow, Finseta is a place where you work will be seen and your impact will be clear. Position Overview The "What" We are looking for a Senior Java Back-End Developer with a proven track record of designing and building scalable and high performing back-end systems, ideally in the financial services sector. Our ideal candidate will have experience taking a high level idea and being able to ship a final product. This includes architecture, automated testing, and devops related items. Our main technology stack is: • Java 21, • Spring Boot, • Kafka, • Postgres, • Microservices, • AWS, • Kubernetes, • Terraform The "How" The most important assets to being successful in our team are proactivity and initiative. We are looking for a candidate that is comfortable driving delivery, all the way through from architectural design, through to shipping, and everything that comes with it. Experience (must have): • Java, • Sprint Boot, • Relational Databases, • AWS, • Microservices Experience (desirable): • Kubernetes, • Terraform, • Kafka, • Automated Testing, • DevOps, • Financial Services Interview Process Stage 1: Screening call (virtual) An informal 30 minute virtual and informal discussion to get to know a bit more about you and your experience. We are looking for examples of your recent experiences and responsibilities, but more importantly your ability to champion new ways of working, processes, technologies and generally your ability to take initiative and be proactive. Stage 2: In person interview (in person) 1.5-2 hours in person in our office in Moorgate, London Exercise 1: Problem solving We'll give you a bug/problem of the nature we could face in our day to day work, and ask you what approach you would take to solving it. What we are looking at is your ability to think pragmatically and logically, to solve a real world problem. Exercise 2: System design exercise We'll ask you to conceptually design the architecture of one of our existing features, and to talk us through your approach, and answering follow up questions about what you have designed. What we are looking at is your knowledge and ability to use micro service design patterns, as well as being able to articulate the pros and cons of various approaches. Essentially, we're trying to get a sense of your ability to think of the bigger picture, and to apply your technical knowledge to come up with a viable real-life solution.

Mostly remote, with occasional travel to Croydon. This is a contract role offering long-term stability, flexibility through remote working, and the opportunity to work on meaningful, production-grade systems.

Back-End developer (python and GCP) - £525 inside IR35 Exalto consulting are currently recruiting for a contract back-end developer who has great exposure to python programming, javascript, react and GCP, this is inside IR35 paying £525 per day and initially 6 months. Skills required for the role

Exalto consulting are currently recruiting for a contract back-end developer who has great exposure to python programming, javascript, react and GCP, this is inside IR35 paying £525 per day and initially 6 months. Expert knowledge of backend development with Python, Node. Experience with frontend t

6 month fixed term contract. We are looking for a senior full-stack React developer to help a client continue development of their AI research product. It enables teams to transform their research into interactive customer profiles that power better business decisions. We’re looking for someone with 6+ years experience developing both the back and front end of enterprise software or SaaS products that are used by large enterprises. A small highly collaborative product team consisting of designers and data scientists within a growing consultancy so the ideal candidate will take ownership of the development of the product (alongside the product lead), be a team player and excellent communicator, able to contribute to the roadmap and steer technical decisions. You will be expected to: ● Develop new features working with the data science ● Develop bug fixes and security patches promptly ● Collaborate and contribute to product feature planning (from a technical perspective) ● Lead implementation of testing infrastructure (Unit testing and Integration Testing) ● Lead and guide the development of our SDLC ● Able to help our customers with technical issues ● Be a good communicator and listener who is not afraid to ask questions Skills and experience You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node ● Experience building secure applications ● Good experience writing unit and integration tests with tools like Mocha and Jest ● Ability to deploy and manage our back-end and front-end ● Experience using Supabase

Join as a visionary Full Stack Developer, leading transformative development with integrated solutions across front and back-end, bridging the technology-business gap and shaping the future with innovative user experiences. Join as a Full Stack Developer and lead transformative development, crafting innovative solutions across front and back-end with integrated services and APIs. Embrace your leadership role, creating conceptual architecture to meet precise client needs, while bridging the technology-business gap with exceptional communication. Elevate your career in this dynamic journey of Full Stack Development, shaping the future and making a lasting impact on clients. Together we do what matters. Key responsibilities • Analyze, design, develop, implement and maintain application code in a variety of contexts, • Use .NET and Azure ecosystem to build scalable applications which power modern framework-driven web apps., • Build and automate the features and services that model complex business problems, power enterprise-scale systems and drive innovative user experiences, • Implement APIs and Microservices through database design, data access and ORMs and consume said APIs to build feature-rich applications, • Develop scalable and cloud-based solutions, with consideration to security and performance, • Programming: C# / .NET, JavaScript/TypeScript, • Service Development: building web applications and web APIs using .NET and cloud services, • Cloud: Azure and others, • Database: (worked with one or more of) SQL Server, Azure SQL, Entity Framework, Cosmos DB, • Design & Style: HTML5, Responsive/Adaptive Design, CSS3, Bootstrap, • Frameworks: (Worked with one or more of) Angular, React, NodeJS, Vue.js, or equivalent JavaScript, • DevOps: Git, Azure DevOps, GitHub, • Nice to haves: Azure AI Foundry, Semantic Kernel or Autogen Characteristics that can spell success for this role • Embrace challenges with passion and a thirst for knowledge., • Collaborate seamlessly, fostering open and effective communication., • Embrace creativity and explore groundbreaking solutions.

💻: GIS Development 🏢: Leading Global Marine Company 🍃: Offshore Wind 📌: Remote - 1 trip per month to the office An established geoscience and offshore energy consultancy is looking for a Geospatial Developer to join its UK-based team, with opportunities to work from Newcastle, Aberdeen, Glasgow or London 🌍 This role is ideal for someone who enjoys turning complex spatial data into smart, scalable web applications. The Geospatial Developer will design, build and maintain geospatial tools that support offshore wind and energy projects, working closely with engineers, geoscientists and developers across disciplines. The role spans full-stack development, geospatial analysis and data engineering, from slick front ends to robust back ends, with plenty of opportunity to get involved in R&D, proposals and technical innovation 💡 What they’ll be doing: • Developing geospatial web applications (front end and back end) 💻, • Building and optimising spatial databases and data pipelines, • Automating geospatial workflows using Python and open-source tools, • Performing spatial and 3D analysis for offshore infrastructure projects, • Supporting containerised (Docker) environments and application testing, • Collaborating with multidisciplinary geoscience and engineering teams, • Contributing to reports, technical notes and business development What they’ll bring: • A degree in Computer Science, GIS, Geospatial Technology or similar, • Experience with Python, JavaScript, SQL, HTML and CSS, • Familiarity with geospatial platforms and libraries (e.g. ESRI, QGIS, GDAL, GeoPandas), • An interest in offshore, marine or renewable energy projects ⚡🌊, • A collaborative mindset, strong problem-solving skills and attention to detail This is a great opportunity for a geospatial professional looking to grow their technical skills, work on impactful energy projects and be part of a forward-thinking geoscience team 🚀

Mid-Level Developer (Solo Lead) Level: Mid-Level Developer - £55,000 (full-time) with flexibility for reduced hours or project-based delivery Location: Remote | Flexible Function: Software Development | Full Stack | Product Engineering Industry: HR Technology | Data & Analytics | Purpose-Driven SaaS Join an organically funded HR technology startup focused on pay gap reporting, salary data analysis, and amplifying employee voice through data. Our client is building a platform centred on equity, transparency, and accountability, and is now hiring a mid-level developer to take ownership of day-to-day engineering alongside the two co-founders. About the Role As a Mid-Level Developer, you’ll work directly with the two co-founders of a purpose-driven HR technology startup, acting as the sole engineer on the platform. You’ll contribute across front end and back end development, building and evolving features that support pay gap reporting, salary analysis, and employee voice. The role offers a high degree of flexibility around working patterns and a clear opportunity to broaden your full-stack capability over time. What You’ll Be Doing • Building and extending product features primarily using JavaScript and CSS, with a focus on maintainable, production-ready code., • Working across a full-stack, low-code architecture using Nordcraft on the front end and Xano on the back end, learning these platforms as needed., • Developing and maintaining APIs to integrate the platform with external HR systems such as Workday and other third-party tools., • Implementing pay gap reporting functionality, including ethnicity and disability reporting, and supporting differing regulatory requirements across jurisdictions., • Integrating AI-driven reporting and commentary features through external services and platform integrations, rather than developing AI models directly., • Improving the robustness of the codebase by introducing or enhancing database backups, regression and unit testing, and applying appropriate web security practices. Ideal Background • Mid-level experience as a JavaScript developer, with exposure to front end and back end development., • Willingness to work full stack and learn new platforms or tools, even if you have not used Nordcraft or Xano previously., • Solid understanding of core web development concepts, including security, performance, and API design., • Comfortable working as the sole engineer on a product while collaborating closely and communicating regularly with non-technical co-founders., • Experience working remotely or in flexible working arrangements, with a reliable and organised approach to delivery., • Able to provide references that speak to reliability and experience working independently or on contract-based engagements. What You’ll Receive • Salary of £55,000 for a full-time role, with openness to reduced hours, three-day weeks, or project-based delivery., • Fully remote working by default, with flexibility around hours and an outcomes-focused approach., • A supportive, founder-led environment with an emphasis on equity, fairness, and ethical use of data., • Direct exposure to product decision-making and increasing technical ownership as the platform evolves., • The opportunity to strengthen full-stack development skills in a real production environment. Who Should Apply This role suits a mid-level developer who wants ownership, flexibility, and closer involvement in product development than is typical in larger teams. If you enjoy working across the stack, communicating directly with founders, and contributing to a product with a clear social purpose, this role is likely to be a strong fit.

THE OPPORTUNITY Inspiring Teachers is an evidence-driven nonprofit working to expand access to quality education. We are building tools for managing large-scale foundational learning programs in Sub-Saharan Africa. Our approach enhances structured pedagogy with technology to enable data-driven teacher support that improves learning outcomes. Today we have programs in Ghana, Uganda and Malawi, but over the next decade our ambition is to provide tools that improve outcomes for millions of children. Join a growing, ambitious Product Team at Inspiring Teachers, which currently consists of 6 members working remotely across African, EU and US timezones, and is responsible for the development of an offline-first mobile app for teachers, school leaders and field staff, and a management dashboard for field staff and district managers. ROLE DESCRIPTION We’re looking for a React Native developer to take ownership of our mobile app as we scale and evolve our products into a multi-tenant platform. You’ll work across the full mobile lifecycle—from turning product ideas into polished iOS and Android features, to shaping architecture, performance, and release quality—while collaborating closely with our product team. KEY RESPONSIBILITIES • Design, build, and maintain high-quality cross-platform mobile apps using React Native for iOS and Android, • Translate product and design requirements into well-structured, performant, and maintainable mobile features, • Own mobile architecture, state management, and performance optimisation across the app, • Integrate with APIs, authentication, and third-party services, including occasional native module work when needed, • Ensure high code quality through testing, code reviews, and best engineering practices, • Manage app builds, releases, and updates for the App Store and Google Play, • Collaborate closely with product, design, and backend teams, contributing to technical decisions and estimates, • Proactively identify and resolve bugs, performance issues, and technical debt IS THIS YOU? • You have an affinity for working in EdTech and for social impact, • You have experience with testing frameworks like Jest and building reliable systems, • You’re excited about working in a fast-paced and dynamic non-profit environment., • You’re a team player with the ability to collaborate effectively with a distributed team., • You’re a self-starter who takes initiative and drives projects to completion. TECH STACK • Main programming language: TypeScript, • Infrastructure: AWS (Serverless, CDK), Netlify, • Database: MySQL (looking into PostgreSQL/CouchDB/RxJS), • Front-end: React-Native, Next.js, • Back-end: Hono.js, Node.js (Lambda), • Design: Figma, • Monorepo (pnpm, Turborepo), • Slack (async communication) & GitHub (for source control and management) BENEFITS • Competitive salary for non-profit, • Remote with opportunities to travel to Africa, • Claude Max plan, • Mission-driven environment APPLICATION PROCESS • We will conduct a round of initial online interviews., • Shortlisted candidates will be invited to participate in a live-coding session., • Final selection will follow, based on internal review., • We aim to complete the process within 2-4 weeks. We know role descriptions can sometimes feel long or intimidating, and great people may rule themselves out. If you think you could be a good fit for Inspiring Teachers, we’d love to hear from you. Please reach out, tell us a bit about yourself, and explore whether this opportunity could be right for you.

Location: Bristol, Cambridge, London, Manchester Position Summary Connect to your Industry Do you want to be at the heart of some of the biggest and most ambitious programmes undertaken to keep our country safe? We are proud of the impact we have with our Defence & Security clients, the strength of our relationships, and the variety of our skills and expertise that we bring to help them achieve their mission. We’re growing our teams across all of Technology & Transformation. If you are cleared to DV level, and want to grow your career in this sector, we are very keen to hear from you. Connect to your career We drive progress. Using our vast range of expertise, we help our clients become leaders wherever they choose to compete. To do this, we invest in outstanding people. We build teams of future thinkers, with diverse talents and backgrounds, and empower them all to reach for and achieve more. What brings us all together? It’s how we approach the thousands of decisions we make every day. How we behave, our beliefs and our attitudes. In other words: our values. Whatever we do, wherever we are in the world, we lead the way, serve with integrity, take care of each other, foster inclusion, and collaborate for measurable impact. These five shared values guide every decision we make and action we take, helping us deliver impact where it matters most. Connect to your opportunity We're looking for people who are natural initiative-takers—individuals who bring out the best in others, are brilliant listeners, and can help grow our business without compromising standards, integrity, or culture. We are seeking a highly skilled and motivated Full Stack Developer to join our dynamic team in the public sector. The ideal candidate will possess a strong background in both front-end and back-end development, with a focus on creating innovative and efficient solutions for government-related projects. The successful candidate will play a key role in designing, implementing, and maintaining web applications that address the unique challenges and requirements of Defence & Security. Responsibilities: • Design, develop, and deploy robust web applications for public sector projects., • Contribute to the entire software development lifecycle in collaboration with cross-functional teams., • Create responsive user interfaces using modern front-end technologies and frameworks., • Develop secure and efficient server-side logic using relevant languages and frameworks., • Implement security best practices, ensuring compliance with government regulations., • Conduct regular security assessments and collaborate to address vulnerabilities., • Develop and maintain well-documented RESTful APIs for seamless system communication., • Work with project managers, UX/UI designers, and stakeholders to translate requirements into technical specifications. All applicants must hold (or be willing to obtain) UK security clearance to Developed Vetting (DV) level. Essential skills: • Proficient in modern front-end technologies: HTML5, CSS3, JavaScript, and frameworks like React, Angular, or Vue.js., • Strong skills in server-side logic using languages such as Node.js, Python, or Java., • Experience with both SQL and NoSQL databases, including data modelling for government applications., • Proficient in analyzing complex issues and implementing effective solutions for public sector challenges., • Flexibility to navigate changing project requirements in a dynamic public sector environment., • Familiarity with government processes, policies, and systems, enhancing the ability to tailor solutions to public sector needs., • Understanding of UX principles to create applications that are accessible and user-friendly for government officials and the public., • Proven ability to develop and maintain well-documented RESTful APIs for seamless system communication., • Experience with implementing and adhering to security best practices for government data.

Senior Backend Engineer Work Location: UK (Remote) - You must be UK based with a full right to work Type: 6 to 12 months contract (with potential of converting to permanent) Reports to: CTO Experience Level: Senior / 5–10 years Salary: £75,000 to £80,000 (Flexible - Depending on experience) About Our Client Key requirements: Python, Fast APIs, AWS (Lambda), AI code generation tools: Cursor, Copilot or similar. Also experience working with AI/ML, and curiosity about AI is essential for this role. Our client is an early stage AI start-up in the education sector. They’re on a mission to redefine how students learn through intelligent tutoring and empower teachers with data-driven insights into learning progress using ML, GenAI, and modern data systems. Their cross-functional team of engineers and product leaders is building a platform that powers both mobile and web apps for users. They’re now on the lookout for a hands-on Senior Backend Engineer who can take ownership of backend architecture, scale system performance, and mature their DevOps and CI/CD practices. What You’ll Do • Design, build, and maintain scalable backend services and RESTful APIs using Python (FastAPI/Django/Flask) (Essential), • Architect and optimise AWS infrastructure (Lambda, ECS, EC2, RDS, S3, CloudFront, etc.) for reliability and cost efficiency, • Build and manage PostgreSQL databases hosted on Amazon RDS, including schema design, query optimisation, and backups, • Collaborate with frontend engineers (React/React Native/Swift) to integrate APIs with web and mobile apps, • Lead DevOps automation - CI/CD (GitHub Actions), infrastructure as code (Terraform/CDK), observability (CloudWatch, Grafana), • Work closely with AI engineers to integrate and deploy machine learning pipelines into production systems, • Implement security, monitoring, and data governance best practices, • Mentor team members, set coding standards, and contribute to architectural decisions with the CTO What You’ll Bring • 5+ years of experience in backend development (Python, Node.js, or Go), • Strong expertise in AWS (Lambda, ECS, EC2, RDS, S3) - highly desirable, and DevOps pipelines (advantage but not essential), • Exposure to integrating AI/ML services or APIs into production systems, • Experience working with AI code generation tools such as Cursor, Copilot, or a similar tool. This essential, as the team work these tools for speed and efficiency., • Deep understanding of PostgreSQL (schema design, optimisation, migrations) and RDS management, • Proven experience building RESTful APIs for high-performance web and mobile applications, • Familiarity with Swift or React Native API integration workflows, • Experience with containerisation (Docker, ECS/EKS/Kubernetes), • A passion for start-up environments — ownership, speed, and hands-on problem solving Why Join • Join an early-stage founding team shaping the platform and product direction from the ground up, • Work with cutting-edge AWS and AI technologies in a fast-paced, high-autonomy culture, • Collaborate closely with experienced product and AI leaders

Job Title: Software Engineer - Backend Contract Duration: 6 months with potential for extension Location: Remote - UK Job Description: This is a generalist mid-level backend position within the Ads Organization. Ads are the fuel that powers the client's mission. Technologies used on the team include: Languages: Go, Python, Scala Frameworks: Spark, Thrift, Kafka Data stores: Postgres, BigQuery, Redis, Druid Tools: Kubernetes, Airflow, Docker Job responsibilities: • You will work with the existing engineering team and help contribute to the direction of the project and team, • Collaborate with cross-functional teams to design, develop, and implement solutions, • Create and maintain APIs, rSpec testing suite, and middleware to facilitate data flow between systems, • Perform system analysis, troubleshooting, and debugging to identify and resolve integration issues, • Ensure compliance with security protocols and data privacy regulations during integration processes, • Troubleshoot and optimize application performance to provide optimal experience, • Ability to design maintainable database schemas and easy-to-understand data structures, • Ability to design technical solutions with little direction or guidance, • Engage in the team's organizational processes, such as planning, backlog refinement, and sprint reviews, to ensure effective collaboration and feedback, • Collaborate with product managers and designers to understand requirements and translate them into technical solutions, • Proactively identify and address potential technical issues and bottlenecks Required Qualifications: • 3+ years of software development experience in one or more general-purpose programming languages (Java, Scala, Go, C++, Python)., • Project Management: Support day-to-day project management tasks, including providing project updates and managing timelines., • Problem Solving in Ambiguity: Tackle ambiguous problems with creativity and resourcefulness. Define and iterate on solutions in the face of incomplete information., • Independent Drive: Proactively identify opportunities for improvement and drive initiatives forward with minimal supervision. Bonus Points: • Experience working in the Ads domain, • Experience or interest in the advertising business, and understanding customer needs, • Experience with prompt engineering, machine learning, or data science.

The ideal candidate will have both front-end and back-end SharePoint skills to build a new section of the internal SharePoint setup, enhancing user navigation.

A supportive atmosphere and regular team outings.

Get notified about new Back End Developer jobs in. Tired of being just another engineer? Here’s your chance to be the third backend hire at a fast-growing ClimateTech start-up making a real dent in global carbon emissions. This role focuses on building a scalable backend and shaping the product in

An innovative company is seeking a Software Developer who thrives in a dynamic environment. This role involves full-stack development, where you’ll tackle both front-end and back-end challenges, contributing to the Timber ERP system for sawmills.

Umbraco Developer Spalding, Lincolnshire (Office-based) £Competitive Salary DOE + Holiday + Pension This is an excellent opportunity for an experienced and highly proficient Umbraco Developer to join a business at an exciting time of growth. This role offers a varied and interesting position where you will have freedom to work on bespoke projects. This company is a digital transformation company specialising in bespoke software development, legacy system support, and enterprise applications for a diverse range of clients. In this varied role you will design, develop, and maintain Umbraco-based web applications, implement clean and scalable code using .NET and C#, integrate REST APIs, while contributing to planning and code reviews, and ensure adherence to security standards using Git-based workflows and CI/CD. The ideal candidate will have previous commercial Umbraco CMS experience (including custom back-end development), strong proficiency in .NET (C#) MVC and a solid awareness of secure coding standards. Experience with SQL databases, RESTful services and Git is also required. This is a fantastic opportunity for an Umbraco Developer looking for a role that will involve a variety of different tasks and brings the opportunity to work within a business that heavily invests in training for its staff. The Role Design and maintain Umbraco web applications and services. Implement secure and scalable code. Ensure security by adhering to security standards. Use Git workflows and CI/CD in an agile environment. The Person Previous commercial experience with Umbraco CMS (custom back-end). Strong proficiency in .NET (C#) MVC and modern development. Experience with SQL, REST APIs, Git, ADO, and quality tools like SonarQube. Able to commute to Spalding 5 days a week. Reference Number: BBBH266585 To apply for this role or for to be considered for further roles, please click 'Apply Now' or contact Tom McLaughlin at Rise Technical Recruitment This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed. TPBN1_UKTJ

Theyve grown significantly over the last few years and off the back of a very successful 2025, they are now looking for a hands-on Lead Front-End Developer to join the team (80% Front-End, 20% Team Leadership). Youll guide a small team of front-end developers and collaborate closely with UX/UI, Prod

Theyve grown significantly over the last few years and off the back of a very successful 2025, they are now looking for a hands-on Lead Back-End Developer to join the team (80% Back-End, 20% Team Leadership). This is a hands-on leadership role ideal for a technically skilled senior developer who can

Familiarity with queue management, observability tooling, and shipping in fast-paced environments. This isn’t just about clean code or strong delivery - it’s about ownership, product intuition, and building for scale. A self-starter attitude, with a strong sense of product ownership and a passio

Design, build, and maintain robust backend services using. Solid understanding of backend engineering principles.

Lead Full Stack Developer (SC Cleared). We are seeking a highly skilled Lead Full Stack Developer to join our dynamic team. Collaboration: Work collaboratively with other team members, including front-end developers, back-end developers, and QA engineers.

A marketing firm is seeking an experienced SharePoint Developer for a short-term contract lasting 2-4 weeks.The ideal candidate will have front-end and back-end skills to build a new section of the internal SharePoint setup, enhancing user navigation.NET, and SharePoint is required.This role offers

Co-Founding Full Stack Developer (Java/ React/ AWS). Full stack developers who want more than a job, they want ownership. We’re looking for a Full Stack Developer with strong expertise in building secure, scalable, and user-friendly applications across both front-end and back-end.

BAE Systems Digital Intelligence is home to 4,500 digital, cyber and intelligence experts. NET libraries used by BAE Systems, such as FluentValidation, Dapper, Polly; (Preferred). Knowledge of the wider Tech Stack used by BAE Systems, such as React, Keycloak, Elasticsearch, NiFi; (Preferred).