22 senior full stack ai engineer jobs found

This role is outside IR35   Oxford Dynamics - Who We Are Founded in 2020, Oxford Dynamics has grown rapidly to be recognised globally for its innovative AI & Robotics technologies designed for mission critical environments. Helping drive the future of decision making at speed from a human or autonomous platform perspective, Oxford Dynamics is a brand that is recognised and respected by Defence & Security organisations by delivering solutions that solve customer problems. Our founders instil the business with passion and purpose meaning we have a "can do " culture and roll up our sleeves up to get the job done.   So, what is it that we do? Our flagship AVIS AI software framework fuses multi-modal data - text, imagery, telemetry etc to allow human-like conversations with complex data. Our unique STRIDER robotic platform performs autonomous tasks in hazardous environments, enabling rapid, informed decisions while protecting people and assets. Our...

Full job description Junior / Mid-Level AI & Full-Stack Python Engineer (Contract) Location:  UK – Fully Remote (occasional office travel, approx. once every 2 months) Contract:  Outside IR35 (expected) Length:  Initial 6 months (extensions likely) Start:  ASAP We are looking for a  Junior to Mid-Level AI & Full-Stack Python Engineer  to join a growing  finance consultancy  on a contract basis. You will work directly under a senior consultant, contributing to the delivery of AI-enabled applications used by enterprise and financial clients. This role is well suited to someone who already has solid foundations in  Python and modern web development , has started working with  AI/LLMs , and is keen to deepen their experience in  cloud, data, and enterprise systems . The Role You’ll be part of a small, collaborative engineering team, working across backend services, AI...

Senior Full Stack Engineer (Backend-leaning) Contract | 2–3 months | Outside IR35 | Remote (UK) / London office | ASAP start We’re working with an AI start-up which is looking for a Senior Full Stack Engineer with a strong backend focus to support the team on a short-term contract. This is an ASAP requirement, so candidates must be UK-based and immediately available . The business is working towards a time-critical deadline, so this role will suit someone who is comfortable operating in a fast-paced, high-pressure environment and able to work self-sufficiently. The role is remote-first, with a London office available for those who prefer occasional on-site collaboration. Responsibilities Design, build and maintain backend services using Node.js , TypeScript and Nest.js Contribute to frontend development using Next.js where required Work with AWS services to support scalable, production-ready systems Take ownership of features from...

Job title: Senior Full Stack Engineer Contract (React + Python) Type: Full-time, Contract, Outside IR35 Location: EU-based, with flexible home, office, or hybrid working Office locations: Newcastle, Leeds, Sofia Hub locations: Edinburgh, Manchester, London Join a small, senior team shaping the next generation of classroom technology. This EdTech product is already in production, used by real teachers, and growing fast. You’ll work directly with the CTO and experienced engineers to ship features that genuinely make a difference in education. You’ll see your work move from prototype to production in days, not months — and you’ll have a direct say in how the platform evolves What you'll do Lead your own work stream across React (front end) and Python (back end and APIs). Turn broad problems into clear plans and deliver working features. Suggest improved approaches and solutions that add value. Collaborate with product, delivery and...

Full job description Job title:  Senior Full Stack Engineer Contract (React + Python) Type:  Full-time, Contract, Outside IR35 Location:  EU-based, with flexible home, office, or hybrid working Office locations:  Newcastle, Leeds, Sofia Hub locations:  Edinburgh, Manchester, London Join a small, senior team shaping the next generation of classroom technology. This EdTech product is already in production, used by real teachers, and growing fast. You’ll work directly with the CTO and experienced engineers to ship features that genuinely make a difference in education. You’ll see your work move from prototype to production in days, not months — and you’ll have a direct say in how the platform evolves What you'll do Lead your own work stream across React (front end) and Python (back end and APIs). Turn broad problems into clear plans and deliver working features. Suggest improved...

Python Full Stack Engineer (Geospatial) 12+ month contract £500-£600/day Outside IR35 Fully Remote We are seeking a Python Full Stack Engineer to join a ground-breaking program that combines innovative software development with strategic nature recovery initiatives. This is a chance to play a key role in building a more sustainable future. The Role You'll be a core part of a multi-disciplinary team, working alongside a BA, Designer, Tech Lead, Frontend Engineer, and User Researcher. We are looking for a consultant , not just an engineer, and we value your ability to communicate effectively with clients, collaborate and innovate. The team is AI-enabled , meaning you will have the opportunity to experiment and use AI tools like Cursor to accelerate your work and improve outcomes. This is a remote role, with occasional travel to our offices in Leeds, Manchester, or London (approximately once a month). Your Skills...

Contract Location: London (Hybrid - 1 day per month onsite) Day Rate: Up to £600 per day, Outside IR35 Duration: 6 months with view to extend Industry: Consultancy SC Eligibility Required About the Client Our client is a specialist cloud and software engineering consultancy that helps organisations modernise how they build, deploy and operate software. Working across both public and private sectors, they partner closely with engineering teams to reduce technical debt, improve developer experience, and deliver resilient, scalable systems using modern engineering practices. With a strong focus on cloud platforms, modern application delivery and long-term system evolution, this is an organisation known for its high engineering standards, collaborative culture, and meaningful work on complex, business-critical systems. How you'll spend your day As a Senior Java / React Full Stack Developer contractor ,...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550 - £600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We help organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering work focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. About the Role We are looking for a Senior Java/React Full Stack Developer to join Appvia on a contract basis, working as a hands-on engineering consultant within our Solutions Engineering team. This role is focused on modernising large, complex software systems, reducing technical debt, and improving...

Role: Senior Full Stack Engineer London 1x a week Rate: Up to £600 per day - Outside IR35 Length: 6 Months (Good chance of extension) About the Role We are seeking a Senior Java / React Full Stack Developer to join our client on a contract basis as a hands-on engineering consultant within a Solutions Engineering team. This role centres on modernising large-scale, complex software systems, reducing technical debt, and improving delivery speed and reliability. You will work closely with client engineering teams, alongside platform and test engineers, helping to introduce modern development practices and AI-assisted engineering techniques to enhance productivity. You will report to a Principal Software Engineer and play a key role in promoting and embedding best practices within delivery teams. About You You are an experienced, hands-on Java/React developer who enjoys working on complex systems and influencing how software is designed, built, and...

Role: Senior Full Stack Engineer London 1x a week Rate: Up to £600 per day - Outside IR35 Length: 6 Months (Good chance of extension) About the Role We are seeking a Senior Java / React Full Stack Developer to join our client on a contract basis as a hands-on engineering consultant within a Solutions Engineering team. This role centres on modernising large-scale, complex software systems, reducing technical debt, and improving delivery speed and reliability. You will work closely with client engineering teams, alongside platform and test engineers, helping to introduce modern development practices and AI-assisted engineering techniques to enhance productivity. You will report to a Principal Software Engineer and play a key role in promoting and embedding best practices within delivery teams. About You You are an experienced, hands-on Java/React developer who enjoys working on complex systems and influencing how software is designed, built, and evolved....

Role: Senior Full Stack Engineer London 1x a week Rate: Up to £600 per day - Outside IR35 Length: 6 months (Good chance of extension) About the Role We are seeking a Senior Java/React Full Stack Developer to join our client on a contract basis as a hands-on engineering consultant within a Solutions Engineering team. This role centres on modernising large-scale, complex software systems, reducing technical debt, and improving delivery speed and reliability. You will work closely with client engineering teams, alongside platform and test engineers, helping to introduce modern development practices and AI-assisted engineering techniques to enhance productivity. You will report to a Principal Software Engineer and play a key role in promoting and embedding best practices within delivery teams. About You You are an experienced, hands-on Java/React developer who enjoys working on complex systems and influencing how software is designed, built, and evolved. You bring:...

Senior Full Stack Engineer | Java | React | Outside IR35 Java | React | Modernisation | DDD | Microservices | AI-Assisted Engineering SR2 is supporting a consultancy-led delivery engagement focused on modernising large, complex software estates. This role suits a senior, hands-on Full Stack Developer who enjoys working closely to clients, reducing technical debt, and improving engineering practices across delivery teams. You'll operate as a consulting engineer within a multi-disciplinary environment, helping teams move faster and more safely through modern development approaches, tooling, and AI-assisted engineering techniques. The Role This is a hands-on senior engineering role, focused on modernising Java/React applications, improving developer productivity, and guiding teams toward better architectural and delivery outcomes. You'll work closely with platform, test, and client engineering teams, while reporting into a Principal Engineer and influencing technical...

🚀 Senior Front-End Engineer – Investment Banking |£750 p/d (Outside IR35) | London / Hybrid (1 Day/Week in Office) We are partnering with a global investment bank to hire a Senior Front-End Engineer to join a flagship team delivering a next-generation, single-page application (SPA) platform for high-performance derivatives trading. This is a high-profile role on a mission-critical, front-office system with exceptional technical standards. You’ll work at the cutting edge of financial technology, contributing to a modern, reactive web platform used across trading desks. This is not your typical enterprise UI, it’s fast, data-intensive, and built to scale with real-time demands in a trading environment. 💼 The Opportunity Collaborate with elite engineers on a SPA used across the investment bank for derivatives trading. Build elegant, high-performance UIs with real-time data updates and functional programming paradigms. Shape a front-end architecture trusted...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops. About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more effective integration,...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We help organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering work focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. About the Role We are looking for a Senior Java/React Full Stack Developer to join Appvia on a contract basis, working as a hands-on engineering consultant within our Solutions Engineering team. This role is focused on modernising large, complex software systems, reducing technical debt, and improving delivery speed...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops. About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more effective integration,...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops. About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more effective integration,...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We help organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering work focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. About the Role We are looking for a Senior Java/React Full Stack Developer to join Appvia on a contract basis, working as a hands-on engineering consultant within our Solutions Engineering team. This role is focused on modernising large, complex software systems, reducing technical debt, and improving delivery speed...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550–£600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We help organisations modernise software systems, improve developer productivity, and adopt cloud-native practices that enable long-term, sustainable delivery. Our software engineering work focuses on modern application development, domain-driven design, and improving delivery outcomes through better architecture, testing, and developer experience. About the Role We are looking for a Senior Java/React Full Stack Developer to join Appvia on a contract basis, working as a hands-on engineering consultant within our Solutions Engineering team. This role is focused on modernising large, complex software systems, reducing technical debt, and improving delivery speed...

Senior Data Engineer Azure - GIS - Python £475-550 per day, Outside IR35 Initially until the end of March Start 19th of January Fully Remote We're supporting one of our favorite Consulting partners source a Senior Data Engineer to join a project team delivering a high profile Government program. You'll join a team delivering an Alpha phase comprising of 5 integrated blocks of work. You must have / be able to obtain BPSS Clearance. Skills/experience required: The role requires a hands-on technical leader capable of building modern data infrastructure in a built-environment context:● Cloud Engineering: Hands-on expertise in Azure administration and secure environment configuration.● GIS Technical Stack: Proficiency in QGIS, PostGIS, or similar spatial database management.● Scripting & AI: Advanced Python or similar for data scraping, cleaning, and AI-enhanced digitisation.● API Management: Building and consuming APIs for government data platforms. Professional...