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Senior Golang Developers x 2 (React/AWS) - Remote - New Roles! (REF47) A leading organisation in the Gloucestershire area requires a number of Senior Golang Developers to join its growing team. Suitable candidates will have strong Golang experience coupled with both React and AWS. In summary, the successful candidates will have the following: • Strong Golang experience, • Proficiency in React (and knowledge of other front-end frameworks like Angular or Vue.js.), • Experience with RESTful APIs and microservices architecture., • Good familiarity with serverless architecture and AWS/Azure services., • Knowledge of database technologies (such as SQL Server, PostgreSQL and NoSQL)., • Excellent problem-solving skills and attention to detail., • Strong communication and teamwork abilities., • Ability to work in a fast-paced and agile environment., • Experience with CI/CD pipelines and DevOps practices., • Proficiency in containerisation technologies such as Docker Benefits: • Competitive salary and performance bonuses., • Remote working, • Professional development opportunities., • Collaborative and inclusive work environment. Please send CV for full job description and an informal chat.

Job Title: Software Engineer (AI HealthTech) Client: AI HealthTech Scale-Up – Backed by Top-Tier Investors, Led by World-Class Engineers Salary: Up to £100k + Bonus + Equity Location: Remote (UK-based) with an optional Holborn office Sells: Work on cutting-edge AI systems that power healthcare innovation at scale. Full remote flexibility across the UK, total ownership of greenfield projects, modern tech stack (Python/FastAPI/Cloud), and a culture that rewards curiosity, autonomy, and clean engineering. An AI HealthTech company is expanding its high-calibre engineering team and looking for Software Engineers who thrive on building elegant, scalable systems from the ground up. You’ll be joining a small, world-class team working on distributed backend platforms, data-driven AI tools, and core infrastructure supporting advanced medical technologies. This is a true software engineering role where you'll be designing, building, and scaling complex systems that solve real problems in healthcare. Role • Design and build production-grade backend systems using Python and FastAPI, • Develop distributed, high-performance services and APIs for AI-driven platforms, • Contribute to architecture decisions, scalability planning, and system optimisation, • Implement best practices in testing, CI/CD, and performance monitoring, • Collaborate closely with product, AI, and data teams to deliver end-to-end solutions, • 4+ years of experience as a Software Engineer building modern backend systems, • Strong Python skills (FastAPI preferred; Flask or Django also considered), • Knowledge of system design, data modelling, and distributed architecture, • Familiarity with cloud technologies (AWS, Azure, or GCP) and containerisation, • Understanding of software engineering best practices — testing, CI/CD, clean code, • Fully remote working across the UK, with an optional Holborn office, • Chance to shape core architecture in a high-impact HealthTech environment, • Flat, engineering-led structure with autonomy and trust, • Work on complex, meaningful technical problems that matter, • Strong equity offering and long-term growth opportunities, • Culture built around innovation, ownership, and collaboration

EdTech Frontend Developer – Vue/Nuxt (Mid-Level+) I am looking for a Frontend Developer with 2+ years' experience working with modern web technologies to join my clients team who are in the EdTech space! Core Skills: • Vue.js & Nuxt 4 (Vite, Composition API, Pinia, Nuxt Plugins), • TypeScript / JavaScript (ES6) – clean, maintainable, typesafe code, • RESTful API integration, • Responsive UI using HTML, TailwindCSS, and CSS3 Bonus if you’ve worked with: • NuxtUI Framework, • Frontend security (COOP/COEP, CORS, CSP), • CI/CD pipelines (GitHub Actions), • Deploying to Vercel, AWS, or similar, • Supabase Auth & Postgres, • Docker for local dev Nice-to-haves: • Origin Private Filesystem & SQLite WASM for browser persistence, • WebWorkers for background processing, • Serverless Framework for AWS DevOps

Principal Machine Learning Engineer - Hybrid/Remote options available Salary - up to £100,000 I am looking for a Principal Machine Learning Engineer to join one of my new clients who operate in iGaming and Betting. This role would be a fantastic opportunity for someone who is interested in building/leading a team in the future, but wants to remain hands on and have more influence on mapping out the overarching strategy for ML developments within a scaleup environment. What you’ll do: • Architect and build scalable ML systems in GCP and AWS, • Drive end-to-end delivery across experimentation, modelling, MLOps and deployment, • Set technical direction, mentor teams, and champion best practices, • Work closely with product and data teams to turn ideas into real-world impact, • Collaborate with 3rd party vendors to understand drivers for growth and how ML can support achieving this What you bring: • Deep experience in cloud-based ML (GCP/AWS), • Confident working on end to end projects, with knowledge of deploying GLM's in particular, • A track record of shipping robust, high-scale ML systems, • Strong ownership, strategic thinking, and a passion for solving problems with bespoke solutions using ML and Data Science, • Knowledge or interest in AI If you're interested in hearing more about the ins and outs of this position, then apply below! Please note: This position is not suitable for sponsorship and therefore all applicants require full rights to work in the UK.

Role: Senior Ruby Engineer Location: Remote (UK-based) Salary: £70,000–£85,000 DOE Are you passionate about building impactful technology in the education sector? I’m partnering exclusively with a leading EdTech company that’s transforming how future doctors learn and succeed. With a stable product, strong market position, and exciting growth plans, they’re now looking to bring on a Senior Developer to help shape the next phase of their product. About the company This is a well-established, profitable platform that’s go-to resource for medical students across the UK. With a mission-driven culture and a collaborative team, they’re expanding their product suite and investing in tech to scale even further. What You’ll Be Working With • Backend: Ruby on Rails, • Frontend: React (Nice to have/ willingness to learn), • Infrastructure: AWS What They’re Looking For • Solid experience with Ruby in production environments, • Strong communication and collaboration skills, • A natural mentor who enjoys supporting junior developers, • A genuine interest in education and making a difference If you’re looking for a role where your work has real world impact and you’ll be part of a supportive, forward-thinking team, I’d love to share more details.

Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN) Company Our client is an extremely well known, digital marketplace focused on sustainable ecommerce. With over 35 million of active users globally, they’re redefining how people buy and sell second-hand fashion, aiming to make the future of style both circular and accessible. The company has offices in UK, EU and US and experienced significant growth especially around the US market and now operates as part of a leading global e-commerce group. They pride themselves on fostering inclusivity, creativity, and innovation and values that extend to both their community and their teams. The organisation champions diversity, equal opportunity, and flexible working. They offer a progressive benefits package designed to support wellbeing, learning, and work-life balance. Role & Responsibilities ->Work closely with engineering managers, product managers, product designers, and other engineers to understand problems and design pragmatic solutions. ->Write high-quality, well-structured, maintainable code that powers production systems. ->Take ownership of product development from discovery through implementation and delivery. ->Provide end-to-end application support, including participating in incident response and post-incident reviews. ->Embrace agile and user-centred development practices. ->Contribute to a culture of continuous improvement via architecture reviews, blameless post-mortems, and engineering guilds. ->Collaborate daily with cross-functional teams to solve problems and ship features. ->Own the lifecycle of your code, systems, and data — from design and deployment to monitoring and maintenance. What you will bring to the table as a Engineer at Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN)... ->Strong software engineering experience - Scala/Java (JVM) -> Experience building scalable, resilient systems and APIs. ->Solid database knowledge (SQL & NoSQL). ->Product-focused mindset — solving real business challenges, not just writing code. ->Bonus if you’ve worked with AWS, Terraform, Docker, or event-driven systems like Kafka or RabbitMQ. What they can offer engineers at Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN)... ->Private health and mental wellbeing coverage, including access to counselling and coaching. ->Salary Ranges: Senior (Up to £100k + Bonus) , Mid Level (Up to £78k + Bonus) ->25 days annual leave, plus additional company-wide rest days and volunteer leave. ->Flexible hybrid working, with the option to work abroad for limited periods. ->Generous parental, IVF, and carer leave policies. ->Learning and development budgets for conferences, mentorship, and skills growth. ->Pension matching, life insurance, and recognition for service milestones. If you are interested in the Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM )| Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN) - drop over your CV and we will give you a call if we think you are a good fit :) .

Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote One of the most recognisable financial services companies in the UK is on the hunt for Backend Engineers. They are revolutionizing the way people manage their money and would love YOU to help them on their journey! You will be responsible for building scalable, high-performance Back End systems that power their banking platform. You Will: Design, develop and deploy scalable, high-performance Back End systems using Java/Python/Golang. Collaborate with the engineering team to define and implement new features and services. Roll features out to over 10,000,000 users and also close to 5,000 internal staff. You Have: Strong experience in Java/Python/Golang programming. Experienced with K8s/Docker Experience with AWS or other cloud platforms Strong test driven development Strong scalability and performance mindset Location - Full remote (from the UK) Duration - 6 months (Ave tenure of contractor at this client is 17 months) Rate – Up to £700pd inside IR35 Senior Backend Developer - Up to £700pd Inside IR35 - Full Remote

GCP | Google Cloud Platform | Terraform | DevOps | Stockholm | Infrastructure as code | Platform | SaaS | AI | CloudSQL | AWS | Amazon Web Services Excited by the prospect of working on AI based SaaS products? Looking for somewhere that offers a chance to work on GCP and Containerisation? I'm working with a scale up in the SaaS world leveraging AI to provide data driven insight to improve C-suite and Board level decision making for the betterment of business, people, and planet. Working with global leading businesses across FTSE100, Fortunate 500 and more. They're on the hunt for GCP experience DevOps talent that are able to work on the corners of Google Clouds services such as GKE, CloudSQL all built with IaC via Terraform. Adhering by best practices you'll be working a team of DevOps Engineers to enable the scalability of the Product matches the businesses growth. Having grown organically, through funded backers and acquisition the Tech needs to continue to take on new customer and scale at speed as well as continue to add new features throughout. The role can offer a salary up to £80,000 DOE, alongside benefits such as healthcare, 26 days AL, Pension and more If this is up your street, send over a CV and apply or email me on GCP | Google Cloud Platform | Terraform | DevOps | Stockholm | Infrastructure as code | Platform | SaaS | AI | CloudSQL | AWS | Amazon Web Services

Full Stack Engineer - Fully Remote - Cybersecurity Start-Up £65k - £90k (plus equity and benefits) depending on if you fill the mid-level or senior-level role. We are seeking 2 Engineers. The role is fully remote. This is an amazing opportunity to be an early part of a mega start-up that already has international recognition. I am partnering with an international (New York, Singapore) well-funded, analyst-recognised cyber security scale-up (nearly $30m raised) that helps large enterprises and critical infrastructure providers understand how they could be hacked in real time. Their platform blends threat intelligence, real attacker telemetry and automated red teaming to give security teams time to respond before attackers succeed. The Role for Full Stack Engineer - Fully Remote - Cybersecurity Start-Up • You will join a small, high-calibre team building the core customer-facing applications:, • Design, build and maintain features across backend and frontend, • Turn product and design requirements into scalable, high-quality code, • Collaborate with product, design and engineering to deliver seamless user experiences, • Solve challenges around performance, scalability and developer efficiency, • Help improve engineering standards, tooling and processes The Person for Full Stack Engineer - Fully Remote - Cybersecurity Start-Up • We are seeking two engineers, one mid-level and one Senior-level to build enterprise SaaS products across the full stack (cybersecurity experience is a strong plus), • Backend: TypeScript, NestJS, REST APIs, GraphQLor similar ORM, MySQL and NoSQL, Kafka or similar, • Frontend: React, Next.js, TypeScript, Chakra UI, React Query (or similar), GraphQL integration, • Comfortable working with complex dashboards and data-heavy UIs, • Able to interpret designs and flows from tools like Figma, • Experience in startups or high-growth environments, with an ownership mindset and ability to thrive under pressure Nice to have: AWS, Kubernetes, and knowledge of infrastructure/networking. Interview process: Technical exercise plus 2 stage remote video call.

Node.js / JavaScript Developer (Outside IR35) Location: UK Remote (Manchester or London preferred for occasional meetings) Rate: £400 per day (Outside IR35) Duration: 3 months (initial) Start Date: ASAP The Role We're looking for an experienced Node.js / JavaScript Developer to join a 3-month greenfield project, focused on upgrading and modernising an existing system from Perl to Node.js. You'll work alongside a small, agile team to architect and deliver a clean, scalable solution. This role is ideal for a hands-on developer who enjoys solving complex problems and improving legacy systems using modern technology. Key Skills & Experience * Strong Node.js and JavaScript development experience * Experience working on greenfield or migration projects * Good understanding of API development and system integration * Exposure to MongoDB (Mongo Atlas desirable) * Comfortable working in Linux environments * Experience with AWS or Azure * Version control using Git * Familiarity with DevOps principles and CI/CD pipelines is a plus * Previous experience with Perl (nice to have but not essential) Other Details * Fully remote (UK-based only) * Occasional in-person meetings in Manchester or London may be required * Outside IR35 If you're a strong Node.js developer looking for an exciting greenfield project, get in touch today! Desired Skills and Experience Node.js / JavaScript Developer (Outside IR35) Location: UK Remote (Manchester or London preferred for occasional meetings) Rate: £400 per day (Outside IR35) Duration: 3 months (initial) Start Date: ASAP

Lead Backend Engineer – £85K – Fully Remote (UK) - Go/ AWS I am exclusively supporting a Product Company who are looking for a Lead Backend Engineer to join their engineering team and take the reigns on a number of projects. They are an established company who have a family feel and great engineering culture. They are on the hunt for a hands-on Lead who can drive a flagship project, support in mentoring junior devs, and shape the tech direction of their core platform. You'll have tons of autonomy and become an integral part of their engineering function alongside the Lead Frontend Engineer & Head of Tech. Stack: Must have: Go | REST APIs | gRPC Microservices | DynamoDB | MySQL | Agile A big plus! Docker | Kubernetes | React | CI/CD | AWS & GCP What you'll do: • Tech Leadership, • Lead a high-impact project end-to-end, • Set the bar for coding standards and architecture, • Mentor and grow a talented team, • Influence tech decisions across the board The role: • Fully remote across the UK, • £85,000 + Equity

I am exclusively supporting fast-growing climate tech startup who are on a mission to transform how global supply chains operate—starting with the ones driving the energy transition. Their platform uses AI to help the world’s most ambitious renewable energy companies build smarter, more sustainable operations. They're looking for a Full-Stack Product Engineer who thrives at the intersection of product, data, and engineering. You’ll work directly with founders, designers, and customers to ship features that solve real-world problems fast. The Stack: • React/ Next.js, • TypeScript, • Node.js, • AWS, • Systems Architecture What you'll do: • Work across their stack and play a key role in the products roadmap & direction, • Design and build intuitive, data-rich product experiences, • Collaborate across teams to turn complex supply chain challenges into elegant solutions, • Help shape the product roadmap in a high-ownership, low-ego environment You might be a fit if you: • Love working on products with real-world impact, • Have experience working in small teams with lots of ownership, • Have experience across the stack (bonus if you’ve worked with AI or data-heavy platforms), • Care deeply about sustainability, transparency, and building things that matter, • Looking for a remote role with occasional office visits (London) The team size is 7 and they are offering £80k + equity!

Windows | .Net | IIS | AWS | ECS | EC2 | CloudWatch | Cloudformation | Cloud Engineer | SRE | System Engineer | Amazon Web Services | Terraform | GCP Are you excited by getting into the corners of AWS Services? Are you looking for something that's genuinely REMOTE? I've just finished a meeting with a global WebApp that are leading in the APAC region for all ticketing services. Working with the likes of Snoop Dogg, Manu United, and Liverpool - they host end to end solutions for events from beverages, to ticketing to event spaces. They're using AWS, ECS, Cloudformation and Windows OS with .Net on the backend and are looking for THREE... yes, THREE Cloud Engineers. With that, I want to speak to people looking for remote working, a close-knit, cohesive team that facilitate certifications and training further beyond Systems and further into the Cloud/SRE world! In return the role offers £60,000 alongside benefits and support through training and devlopment through their AWS partnership and further certifications! If you're interested in hearing more or progressing then send over a CV to me on or apply! Windows | .Net | IIS | AWS | ECS | EC2 | CloudWatch | Cloudformation | Cloud Engineer | SRE | System Engineer | Amazon Web Services | Terraform

Global Platform Lead (DevOps) – Fully Remote – Cybersecurity Scale-Up £100,000 base salary plus equity and benefits. Fully remote from the UK with a genuinely global remit across the US, UK and APAC. I am partnering with an international (New York, Singapore) well-funded, analyst-recognised cyber security scale-up (nearly $30m raised) that helps large enterprises and critical infrastructure providers understand how they could be hacked in real time. Their platform blends threat intelligence, real attacker telemetry and automated red teaming to give security teams time to respond before attackers succeed. The Role for Global Head of Platforms (DevOps) – Fully Remote – Cybersecurity Scale-Up This is the senior owner of platform and DevOps, building the backbone that powers global exposure management for Fortune 500 and critical infrastructure clients. You will: • Lead and grow a high-performing Platform Engineering organisation across regions, • Own and evolve the global cloud and distributed scanning platform for scale, resilience and speed, • Drive DevOps and SRE maturity (deploy frequency, stability, time to recover) across services, • Shape multi-region cloud strategy, balancing performance, cost, risk and regulatory demands, • Partner with Product, Security and Engineering leadership to ship secure, reliable customer-facing capabilities faster The Person for Global Head of Platforms (DevOps) – Fully Remote – Cybersecurity Scale-Up You are a seasoned platform and DevOps leader who enjoys both strategy and technical depth. Ideally you have: • Excellent experience building and leading distributed engineering teams, including managing regional leads, • A track record of scaling high-throughput, distributed platforms in production, ideally in cyber or data-heavy products, • Experience in early-stage or high-growth B2B startups serving enterprise customers, • Strong background across cloud (AWS/Azure), Kubernetes, Terraform/Ansible, CI/CD and observability, • Solid understanding of networking and multi-region cloud operations, including cost, resilience and data residency, • Confidence working with senior stakeholders to make pragmatic, commercial platform decisions, • Tech environment includes: AWS, Azure, Kubernetes (EKS), ECS, Terraform, Airflow, EFK/Prometheus/Grafana, MySQL/PostgreSQL/Redis/Elasticsearch/Kafka, GitHub Actions, plus services written in Python, Node.js and Go.

Senior AI Engineer Location: Belfast or Remote (UK-based) Type: Permanent | Hybrid or Fully Remote (UK) About the Opportunity If you're the kind of engineer who loves turning cutting-edge AI into real, working features that people actually use - this will be a role worth looking at. You'll be joining a global technology company whose platform helps major manufacturers design and build products smarter and faster. Their technology simulates real-world production before anything is made - giving customers data-driven insights on cost, efficiency, and design. Now, the focus is shifting to the next big leap: embedding AI and Generative AI directly into that platform. That's where you come in. What You'll Be Doing This is a hands-on, impact-heavy engineering role. You'll design, build, and deploy AI-powered capabilities that make a genuine difference to how users interact with the platform - things like intelligent assistants, automated insights, and adaptive recommendations. You'll work alongside product and engineering teams to bring these ideas to life, helping to shape both the technical direction and the AI strategy. Expect to spend your time on: * Building and productionising LLM-based features and GenAI workflows. * Using frameworks like LangChain, PyTorch, and TensorFlow to bring models into production. * Working with AWS Bedrock, SageMaker, or GCP Vertex AI to deliver scalable cloud-based systems. * Implementing strong MLOps and LLMOps practices - from CI/CD and model monitoring to cost and performance optimisation. * Partnering with Data Engineers to ensure the pipelines and data structures feeding the models are robust and scalable. * Keeping an eye on what's next - new GenAI frameworks, model safety, and emerging best practices - and sharing that insight with your peers. What You'll Bring We're looking for an engineer who's comfortable getting stuck into all layers of AI delivery - from model design to deployment. You'll likely have: * Around 7 years' experience as a Software Engineer or Machine Learning Engineer. * A strong grounding in Python, with hands-on experience building and shipping AI/ML or LLM-driven products. * Experience with cloud ML platforms (AWS SageMaker, Bedrock, Vertex AI, etc.). * Familiarity with LangChain or similar orchestration frameworks. * A solid understanding of MLOps and how to take models from concept to production. * A collaborative mindset - you enjoy working closely with Product and Data teams and mentoring others when needed. * Curiosity, experimentation, and a practical streak - someone who likes building things that work. Why This Role? * You'll have genuine influence in shaping how AI gets built into a global product used by major industry players. * You'll work with modern tech - cloud-first, AI-ready, and focused on delivering applied, not theoretical, intelligence. * You'll join a team that's small enough to move fast but part of a company with real global scale. * Flexible hybrid setup with UK remote options for the right person. • Up to 95k base salary How They Work The engineering hub is based in Belfast, but the team works flexibly - whether that's in-office collaboration or remote work from anywhere in the UK. What matters most is communication, ownership, and a shared passion for using AI to solve real-world problems. How to Apply To apply for this role, submit your CV via the application form provided. Alternatively, to speak in absolute confidence about this opportunity, please contact Jack Tyrrell via Disclaimer If you have a disability which means you require assistance at any stage of the recruitment process, please contact us directly to discuss. We are committed to providing equality of opportunity to all. Please note, we are receiving an exceptionally high number of applications at present and will be unable to shortlist candidates who are not meeting the specific requirements for this role. Due to the high volume of applications, we may be unable to provide individual feedback. We thank you in advance for your understanding.

We are seeking a suitably experienced AWS DevOps Engineer with current or recently expired SC Clearance. This is a fully remote DevOps role. You will have at least 5 years AWS DevOps experience and have recently held or hold current SC Clearance. DevOps Engineer - AWS Permanent Location: Fully Remote Salary: £67,000 Responsibilities: • Design, implement, and manage scalable, secure, and reliable infrastructure on the cloud., • This is a data heavy environment so solid experience with EMR is essential, • Collaborate with development teams to define and implement infrastructure requirements., • Develop and maintain CI/CD pipelines to automate the build & deployment process., • Monitor and troubleshoot infrastructure issues, ensuring high availability and performance., • Implement and manage security best practices across the cloud environments., • Deploy preventative and detective guardrails to enforce organisation policies and ensure compliance., • Optimize cloud costs and resource utilization., • Create and maintain detailed documentation of infrastructure and processes., • Stay up-to-date with the latest industry trends and the tools. Qualifications: • At least 5 years of experience as a DevOps Engineer or in a similar role., • Experience of deploying & managing cloud infrastructure for Data Solutions, • Hands-on experience of working with AWS services, including but not limited to EC2, S3, RDS, Lambda, Glue, EMR, VPC, IAM, Redshift, etc., • Good experience in setting up reliable cloud networking that is highly secured., • Experience of setting up standard cloud governance policies through IAM roles., • Extensive experience with Terraform, including writing, testing, and deploying Terraform scripts., • Strong understanding & experience of setting up CI/CD using GitHub Actions., • Experience of maintaining & configuring Linux VMs and scripting via Python, Bash, or Shell., • Experience with monitoring and logging tools such as CloudWatch, or Grafana, • Excellent problem-solving skills and attention to detail., • Strong communication and collaboration skills.

Summary • About: Kalisa is a GenAI platform turning knowledge and expertise into secure AI solutions, in minutes., • Core skills required: Python, Flask, LangChain, RAG, Generative AI product development, LLMs, Guard railing, anti-hallucination techniques and GenAI evaluation techniques., • Other skills considered: Tailwind CSS, HTMX, AWS or Azure or GCP, • Please only apply if you are fully eligible to work in the UK Who we are Kalisa is a fast-growing AI start-up enabling the next generation of professional services. Our platform helps organisations turn their knowledge and expertise into chat agents, automated workflows and AI-powered experiences - securely, reliably, and at scale. We are based in the UK and service a rapidly growing client base around the world. Due to this continued growth we are expanding our engineering team to help us scale our platform and build new functionality. We are at the start of the GenAI revolution, and this is an opportunity like no other. If you think you are the right person for the role, we encourage you to apply and look forward to hearing about your tech journey. Who you are • We are seeking an experienced Flask Python AI Engineer with LangChain Experience with a proven track record in building and deploying production-grade GenAI applications., • You will join a small, agile, and passionate team to enhance and scale our GenAI platform., • This will involve working closely with our team to deliver new features, improve existing functionality, and ensure seamless integration with new foundation models as they become available., • You will be able to work independently, be self-sufficient, eager to learn, be able to build something from scratch and see it through to completion. As a key team member, you will: • Architect & Implement: Design, build, and maintain reliable, scalable, and high-performance Python services within a Flask-based ecosystem., • Front-End Enhancement: Leverage HTMX and Tailwind CSS to create an engaging, dynamic and responsive user interface, minimising JavaScript overhead and improving the overall user experience. No prior HTMX experience is required., • GenAI Integration: Work with LangChain to implement prompt engineering techniques, RAG pipelines, and intelligent agent capabilities., • RAG & Vector Databases: Implement and optimise RAG strategies, semantic search capabilities, and embeddings-based retrieval; integrate and manage vector databases., • Relational Databases: Leverage MySQL and SQLAlchemy as the ORM to design robust, optimised schemas and implement efficient data retrieval and storage strategies., • Cloud Deployment: Integrate and deploy services across cloud platforms (Azure, AWS, GCP), ensuring robust infrastructure, monitoring, and observability., • Data Security & Compliance: Collaborate with security teams and architects to ensure data privacy, compliance, and reliable access controls within enterprise environments., • Continuous Improvement: Participate in code reviews, contribute to technical documentation, and proactively identify opportunities for platform optimisation and enhancement. Requirements Professional Experience: • Python Proficiency: Minimum of 5 years of experience working with Python, the Flask framework, developing relational database-driven backend services, APIs and web apps., • Front-End Integration: Demonstrable experience of working with Tailwind CSS to implement responsive website and web app designs., • GenAI Expertise: A minimum of 2 years of experience building and shipping at least one GenAI product (e.g., LLM-based app, custom chatbot, RAG-driven knowledge platform)., • LangChain: Demonstrable experience working with LangChain., • RAG & Vector Technologies: Demonstrable knowledge of RAG techniques, vector databases, semantic search, and embedding models., • Responsible AI: Guard railing, anti-hallucination techniques and GenAI evaluation techniques. Nice to have: • Front-End Integration: Working knowledge of HTMX to build dynamic web applications., • Cloud Platforms: Practical experience deploying and managing applications on at least one major cloud provider (Azure, AWS, or GCP). Additional Requirements: • Based in the UK and authorised to work., • Strong communication skills and the ability to work effectively in a fully remote team environment., • Fluent English speaker and writer., • Most of our work is in written form, which means being a good writer is very important. The importance of high-quality writing is carried through our designs, internal project discussions, code comments and the code itself., • Self-starter mentality with a focus on delivering tangible results. What We Offer • Competitive Pay: Based on your experience to date., • Fully Remote: Enjoy the freedom to work from anywhere in the UK., • Pension, • 25 Days Holiday + Bank Holidays, • High Impact Work: Contribute to a fast-growing platform already used globally, enhancing your experience and portfolio., • Career Growth Opportunities: Work at the intersection of cutting-edge AI research, product innovation, and world-class engineering practices., • Latest Cloud & AI Technology: From AWS, Azure and GCP., • Learning and Development Opportunities: Including access to resources and mentorship., • A Friendly, Supportive and Passionate Team. Our Hiring Process • 10 min video demonstration: We will ask you to record a 10 mins video showcasing a LangChain (ideally!) GenAI project you have built or took part in developing, clearly showcasing and explaining the application of LLMs and vector embedding of external documents or data, guard railing, anti-hallucination techniques and GenAI evaluation techniques., • Initial Interview, including GenAI project walkthrough: Meet with our CEO for an in-depth discussion about your experience, approach, and technical skills. This is an opportunity for us to get to know each other and ensure we share the same vision and values. We will discuss the GenAI project you showcased in the previous step, and discuss your design decisions, implementation details, and the overall outcome, giving us a chance to understand your problem-solving approach and coding style., • Technical Challenge: If you are successful in the initial interview, you will be invited to complete a technical challenge that will be briefed based on your experience. We expect this to take 1-2 days, and you will be compensated for your time. If you are excited about pushing the boundaries of what is possible with GenAI and you meet the above criteria, we would love to hear from you. Direct applications only - No recruiters

Secure Screening Services is a tech-led background screening company on a mission to make background checks simple, fast and stress-free for clients and candidates. We’ve built our screening portal in-house and back it with a UK-based support team, using smart tools to deliver dependable service. We’re proud of our relaxed, friendly culture, and we match hard work and commitment with flexibility, creative freedom and support to develop your skills. Here’s what to expect to be working on as a Software Engineer at Secure Screening Services: · Join a Small, Fantastic Team: Be part of a close-knit group with a vibrant and positive culture, where everyone's contributions are valued and celebrated. · Growth-Oriented Environment: Thrive in a setting that fosters continuous growth and development, both personally and professionally. · Top-Notch Equipment: Macbook Pro, ensuring you have the best tools to excel in your role. · Lead and Own Your Role: Enjoy the freedom to truly own and take the lead in your position, driving projects and making impactful decisions. · Dedicated Development Day: Benefit from a dedicated day each month focused solely on development, allowing you to innovate and push the boundaries of our product. · Rapidly Growing Product: Be a crucial part of a rapidly expanding product, contributing to its success and scaling it to new heights. · High Levels of Collaboration: Engage in high levels of collaboration with a team that values teamwork, open communication, and collective problem-solving. Duties & Responsibilities · Deliver stable, well-reviewed code across our PHP 8 / Laravel 9 monolith · Improve legacy systems incrementally without introducing risk or churn · Follow technical leadership and prioritize team goals over personal agendas · Mentor junior developers and support a culture of professional discipline · Collaborate with security and DevOps tools (Vapor, Snyk, and Cloudflare) · Communicate clearly around blockers, estimates, and changes · Be a consistent, team-first contributor in a structured engineering environment Skills & Qualifications · 5+ years of professional experience with PHP/Laravel in production · Strong familiarity with Laravel conventions and the broader ecosystem · Proven ability to work within legacy codebases · Competence with React — no rebuilds, but capable of debugging and stabilizing · Experience with DevOps basics: AWS, CI/CD, shell tools, etc. · High attention to detail and careful problem-solving mindset · Demonstrated ability to take direction while building trust within the team · Experienced mentoring juniors and promoting good coding practices · A team player who builds good working relationships Benefits: · Enhanced holiday package and your birthday off · Electric car scheme via salary sacrifice · Health cash plan · Wellbeing programme · Relaxed office setting · Company events · Flexible working · Hybrid/remote working Company Overview Founded in 2018, Secure Screening Services has a young, ambitious team with big plans and a love for smart technology. We’re collaborative, supportive and serious about your development—provided you bring dedication and a strong work ethic. In return for your commitment, you’ll find mentorship, meaningful responsibility and the chance to shape how we serve our clients and candidates. It’s a place to do your best work and keep getting better. As a fast-moving and rapidly evolving tech company, we embrace the advantages of AI and encourage its use throughout our application process. However, our goal is to get to know and hire the authentic you - your skills, experience, and values. We don’t want to hire an AI-generated version of you. We consider AI to be a valuable tool, not something that should overshadow you as an individual. • Closing Date: 28th November 2025.

A fintech infrastructure startup (VC backed) is building a real-time financial data platform designed to replace legacy systems and handle high-volume transactional workloads. We’re looking for a Full-Stack Engineer to help build core backend services, modern web applications, and high-performance data pipelines. They operate on a fully remote basis. What You’ll Do • Build REST/gRPC services and contribute to microservices, • Develop modern React-based web applications, • Implement real-time features (websockets, streaming, notifications), • Improve performance, reliability, and observability, • Collaborate across engineering, product, and design, • Use AI tools to accelerate development What We’re Looking For • 4+ years full-stack experience, • Strong Go backend skills (Python/Java helpful), • React with modern state management, • PostgreSQL, Redis, and cloud-native architecture familiarity, • Docker/Kubernetes, CI/CD, cloud platforms (AWS/GCP/Azure), • Strong communication and collaboration Nice to Have • Fintech or ledger system experience, • Core banking technology platform experience, • Event-driven architecture, CQRS, DDD, • Kafka/RabbitMQ/SQS, • Real-time systems or high-throughput services, • IaC tools (Terraform/Pulumi) What You’ll Get • Build foundational systems used across financial products, • Modern, AI-assisted engineering environment, • Ownership, impact, and competitive compensation Next steps Interested in building the core technology behind next-generation financial platforms? Apply below or reach out to learn more

Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN) Company Our client is an extremely well known, digital marketplace focused on sustainable ecommerce. With over 35 million of active users globally, they’re redefining how people buy and sell second-hand fashion, aiming to make the future of style both circular and accessible. The company has offices in UK, EU and US and experienced significant growth especially around the US market and now operates as part of a leading global e-commerce group. They pride themselves on fostering inclusivity, creativity, and innovation and values that extend to both their community and their teams. The organisation champions diversity, equal opportunity, and flexible working. They offer a progressive benefits package designed to support wellbeing, learning, and work-life balance. Role & Responsibilities ->Work closely with engineering managers, product managers, product designers, and other engineers to understand problems and design pragmatic solutions. ->Write high-quality, well-structured, maintainable code that powers production systems. ->Take ownership of product development from discovery through implementation and delivery. ->Provide end-to-end application support, including participating in incident response and post-incident reviews. ->Embrace agile and user-centred development practices. ->Contribute to a culture of continuous improvement via architecture reviews, blameless post-mortems, and engineering guilds. ->Collaborate daily with cross-functional teams to solve problems and ship features. ->Own the lifecycle of your code, systems, and data — from design and deployment to monitoring and maintenance. What you will bring to the table as a Engineer at Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN)... ->Strong software engineering experience - Scala/Java (JVM) -> Experience building scalable, resilient systems and APIs. ->Solid database knowledge (SQL & NoSQL). ->Product-focused mindset — solving real business challenges, not just writing code. ->Bonus if you’ve worked with AWS, Terraform, Docker, or event-driven systems like Kafka or RabbitMQ. What they can offer engineers at Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM) | Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN)... ->Private health and mental wellbeing coverage, including access to counselling and coaching. ->Salary Ranges: Senior (Up to £100k + Bonus) , Mid Level (Up to £78k + Bonus) ->25 days annual leave, plus additional company-wide rest days and volunteer leave. ->Flexible hybrid working, with the option to work abroad for limited periods. ->Generous parental, IVF, and carer leave policies. ->Learning and development budgets for conferences, mentorship, and skills growth. ->Pension matching, life insurance, and recognition for service milestones. If you are interested in the Leading Sustainable E-Commerce | 35 Million Users | Mid & Senior Back End Engineers | Scala/Java (JVM )| Up to £100K + Bonus | REMOTE (UK) or 1 Day Per Week (LDN) - drop over your CV and we will give you a call if we think you are a good fit :) .