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Senior Full Stack Engineer — Lead API & Architecture

Enso Recruitment is offering an exciting opportunity for a Senior Full Stack Software Engineer in Belfast. The role involves designing and maintaining scalable backend systems while developing RESTful APIs using TypeScript and Node.js. Candidates should have over 5 years of software engineering experience, a sol ...

Full Stack Engineer — AI for Litigation, London

A legal AI startup in London is seeking a full-stack engineer to architect and develop document analysis systems powered by advanced AI. You will collaborate with a founding technical team, contribute to the ambitious product roadmap, and shape the culture of the organization. Required skills include strong expe ...

Senior Full Stack Engineer C# £60k Hybrid

Senior Full Stack Engineer - C# - £60k - Hybrid Senior Full Stack Engineer - C# - £60k - Hybrid This range is provided by DigiTech Resourcing. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range C# Senio ...

Full Stack Engineer for AI Safety Tools

An innovative tech firm in London is seeking Full-stack Software Engineers to develop cutting-edge tools for AI safety research. You will lead projects to analyze model evaluation results and collaborate closely with research teams. Candidates should have solid experience in Python and React, alongside a passion ...

Senior AWS Full Stack Engineer Microservices & Integrations

Narwhal Labs, a fast-growing tech start-up in Bristol, seeks a Senior Fullstack Engineer to own their AWS microservices platform. The role requires strong DevOps skills with extensive experience in building reliable systems. You will design APIs, integrate with third-party services, and define infrastructure as ...

Full Stack Engineer, Senior Specialist (Talent Pool)

Overview Full-Stack Engineer (Senior Specialist) At BNY, our culture allows us to run our company better and enables employees’ growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the wo ...

Senior Full Stack Engineer (+ Equity) at SYSTM

Job Title: Senior Full-Stack Engineer Company: SYSTM - VC‑backed fintech building the stablecoin financial OS Job Description: As the most critical hire of 2026, you will own the technical architecture of a platform revolutionizing cross‑border finance. Working direc ...

Senior Full Stack Engineer — Tech Leader & Architect

A consultancy firm based in Leeds is looking for a skilled Software Engineer to join their team. The role requires proficiency in coding, especially in Python, as well as a strong understanding of cloud environments like AWS and Azure. Candidates should be comfortable with DevOps practices and agile methodologie ...

(AI First) Full Stack Engineer (Go + React)

2 weeks ago Be among the first 25 applicants This range is provided by Mindstone. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range About MindstoneMindstone's mission is to up‑skill the world in pra ...

Senior Full Stack Engineer (+ Equity) at SYSTM

Job Title: Senior Full-Stack Engineer Company Description: SYSTM - VC-backed fintech building the stablecoin financial OS Job Description: As the most critical hire of 2026, you will own the technical architecture of a platform revolutionizing cross-border finance. Wor ...

Senior AI & Data Consultant | Full Stack Engineer

Data Organisation Demonstratable interest and awareness in emerging technologies Hands-on coding experience with SQL, Python or Scala What We Look For We are looking for highly motivated individuals who are passionate about Data and Analytics and want to assist... </ ...

Hybrid Senior Full Stack Engineer – TypeScript & React

A technology-driven skincare start-up is seeking a Senior Software Engineer to join their dynamic team. In this hybrid role, you will utilize agentic tools to enhance productivity and work on full-stack feature development. This is an exciting opportunity to influence engineering standards while addressing impac ...

Senior Full Stack Engineer – Hybrid, Healthcare Tech

A leading online pharmacy in the UK is seeking a Senior Full Stack Engineer to join their innovative team. This hybrid role involves developing high-impact software solutions that improve patient care. Candidates should have experience with .NET, SQL, and APIs, along with a solid testing mindset. The pharmacy va ...

Lead Full Stack Engineer | Hybrid, Equity & Impact

Spruce, based in Greater London, seeks a Lead Full Stack Engineer to blend technical leadership with hands-on coding. This role requires expertise in JavaScript, backend development, and relational database management. Responsibilities include owning architectural strategies and mentoring teams. The position off ...

Full Stack Engineer | AI Powered Testing & Autonomy

An innovative AI company is seeking a passionate individual to join their team in London. This role involves building autonomous testers that adapt and learn using AI technologies. The ideal candidate is driven, has experience in a startup environment, and is fluent in AI/LLMs like LangChain. You will engage wit ...

Senior Full Stack Software Engineer (Java / React )

.**About the team:**Our dynamic Agile Teams deliver the technology that facilitates researchers to publish quality scientific research. As a Software Engineer, you will build capabilities to improve the quality of scientific research**About the role:**As a Senior II Software Engineer, you will build capabilities ...

Senior Engineer (Full Stack & Infra) AI Adoption

The Mission & The Squad You will join the Adoption AI Team, a small foundational squad operating as a startup within Multiverse. We are building a category-defining product from scratch, leveraging our massive existing customer base and IP to deliver personalized, role‑specific AI use cases. Ou ...

SDLC Consultant / Lead (DevOps & Full Stack Capability)

Salary negotiable, Yearly bonus + Hybrid Working:Depending on experience. This is a key position within our business; we are looking for the right individual to help build our DevOps and Full Stack capability and offering across our i3Works business. Overview i3Works is a dynamic ...

GenAI Full Stack Engineer: Transform AI Delivery

A leading global technology consultancy is seeking a GenAI Full Stack Engineer for their Manchester office. The role involves developing cutting-edge GenAI applications, collaborating on proof-of-concepts, and supporting infrastructure. Candidates should have skills in backend and frontend technologies, experien ...

Senior Full Stack Engineer (AI Agentic UX)

A leading software company in Greater London is looking for a Senior Full-Stack Engineer (3D) to lead the development of AI-native applications. The successful candidate will be responsible for designing and implementing workflows that allow AI to execute tasks autonomously. This role demands expertise in React, ...

Senior Full Stack AI Engineer (Hybrid—London)

The Python Software Foundation is seeking a Senior Full Stack Software Engineer to enhance research and foundation model development. This role, based in London with a hybrid working model, involves developing full stack applications while collaborating with research scientists and ML engineers. Candidates shoul ...

Senior .NET Full‑Stack Engineer (Cloud & API)

The StepStone Group is looking for a Senior Full Stack Engineer to join their Profile domain product teams. In this role, you will work across the back-end and front-end, leveraging your expertise in C# and .NET Core primarily in cloud-native AWS environments. You will be responsible for designing and ...

Senior GenAI Product Engineer – Full‑Stack & AI

Funding Circle UK is hiring a Senior Full Stack Engineer in Greater London to develop innovative AI/ML products. The role requires strong expertise in full-stack web applications, and a passion for AI technologies. Responsibilities include developing GenAI applications, collaborating cross-functionally with AI e ...

Full Stack Engineer, Senior Specialist (Talent Pool)

Full-Stack Engineer (Senior Specialist) Location: Manchester, United Kingdom. Role Overview The role focuses on strong data analysis skills, logical thinking, problem solving, and system design to develop scalable solutions and AI-enabled capabilities across data platforms and a ...

Senior Full Stack Engineer – AWS Microservices & Greenfield

MCS Group is seeking a Senior Full Stack Engineer in Belfast to join a high-performing team working on a next-generation platform. Candidates should have 5+ years in full stack or backend engineering with expertise in React, TypeScript, and AWS. This role involves owning design and development across a microserv ...

Senior full stack engineer in Cambridge Techspert

Techspert Job Opening Techspert is a fast-growing technology scale-up with offices across the UK, US, and Chile. We specialize in AI-driven technology to transform how knowledge is indexed, identified, and sourced within the healthcare and life sciences sectors. Position Details This is ...

Senior Full Stack Engineer, Cards – Fintech Platform

Ebury is looking for a Senior Fullstack Engineer to join our growing Cards team in London on a hybrid work model. In this role, you will design and deliver complex customer-facing web applications while collaborating closely with data engineers. Ideal candidates will have 5+ years of experience focusing on high- ...

Senior Full Stack Engineer AI Chemistry Platform

A chemistry innovation company in Glasgow is seeking a Senior Full Stack Software Engineer to develop the next version of their automated chemistry tech platform. You'll work in a cross-functional team, collaborating with product stakeholders, and own the software development lifecycle. Ideal candidates will hav ...

Senior Full Stack Engineer PHP/React/AWS

Senior Full Stack Developer – PHP/React/AWS Location: Bracknell (3 days per week in office) | Salary: £70,000-80,000 + bonus We are hiring for an retail/eCommerce business which is scaling and driving sales through digital channels. Now it’s accelerating further, investing in the tech ...

Senior Full Stack Engineer, Front End Leaning

About Encord The success of any machine learning system relies on the quality of its training data, but building high quality datasets is too slow and too expensive. Encord is building the infrastructure to solve this problem. Our platform handles the indexing, curation and annotation of huge dat ...

Senior Full Stack Engineer (AWS Microservices & Integrations)

Location: Bristol, UK — predominantly in-house Experience: 4+ years operating on AWS with meaningful DevOps ownership About Us Narwhal Labs is a fast-growing tech start-up based in Bristol. We are building an AI communications platform at scale, and our engineering ...

Senior Full Stack Engineer (Health Tech | £200k)

Title: Senior Full Stack Engineer (Health Tech) Location: London, hybrid (some remote) Salary: Up to £200,000 + Equity Up to £200k plus equity for senior engineers building software where correctness genuinely matters. Health tech, fraud and risk, regulated fint ...

Lead Full‑Stack Engineer | Architect, Mentor, Strategist

Calyptus is seeking a Lead Full Stack Engineer in Greater London to operate at the intersection of technical execution, team leadership, and product strategy. This role involves owning architecture, designing complex solutions, and mentoring engineers to enhance their growth. Ideal candidates will have experienc ...

Senior Full Stack Engineer — AI Native Enterprise

A leading tech firm in Greater London is seeking an experienced Full-Stack Engineer to design, develop, and maintain scalable systems for high-profile enterprise clients. This role encompasses frontend applications using React and Next.js, and backend services with Python. With a competitive salary range of £100 ...

Lead Full Stack Engineer Public Sector, Hybrid

A digital transformation consultancy in the UK is seeking a Lead Full Stack Software Engineer to take overall technical ownership of high-quality, scalable digital solutions. The role involves leading Engineering teams, collaborating with clients, and driving innovation across services. Required skills include e ...

Frontend Led Senior Full Stack/AI Engineer

A progressive tech company in Greater London seeks a Senior Full-Stack/AI Engineer with expertise in JavaScript and a focus on frontend technologies. You will work on AI-integrated projects and engage directly with clients to deliver high-quality solutions. This role requires strong leadership and collaborative ...

Staff Full Stack Engineer: Lead Platform Architecture

Navan is looking for a Staff Full-Stack Engineer based in Greater London. This role involves leading the design and development of mission-critical features for a platform that serves thousands of business travelers daily. The ideal candidate will have over 5 years of experience in software development, expertis ...

Senior Full Stack AI Engineer for Healthcare

Heidi is seeking an Engineer to develop AI features that aid clinicians in delivering care. The ideal candidate will have a medical degree and clinical experience, as well as proficiency in Python and modern frontend frameworks like React. Responsibilities will include building full-stack AI solutions and operat ...

Mission Critical Full Stack Team Lead | Security

Roke is seeking a Full Stack Software Lead in Gloucester to deliver mission critical solutions for National Security customers. You will lead a team to build secure, maintainable software and develop APIs and data pipelines. Candidates should have experience with JUnit, Jest, and agile methodologies. The role of ...

Senior Full Stack Visualization Engineer (3D WebGL)

A cutting-edge AI infrastructure platform is seeking a Senior Full-Stack Engineer (Front-End Leaning) to lead the development of complex visualization tools for AI datasets. You will design and implement high-performance UI components using TypeScript and React, manage full-stack projects, and collaborate with a ...

Senior Full Stack Engineer — Remote (UK) & Equity

A growing online marketplace in the UK seeks a Senior Full Stack Engineer to build and scale its core commerce platform. The role involves end-to-end ownership of engineering delivery for both front-end and back-end systems. You'll be part of a cross-functional team, responsible for creating scalable solutions a ...

Full Stack AI HealthTech Engineer: Scale & Impact

A HealthTech company in Manchester is seeking a full-stack software engineer to join their growing product and engineering team. You'll design and build applications for thousands of users while ensuring high performance and seamless user experience. With a focus on technologies like Python and React, you’ll wor ...

Senior Full Stack Engineer — Tech Leader & Architect

A leading consultancy firm in the UK is seeking a Software Engineer to contribute to various exciting projects, particularly Python-focused. The ideal candidate will have a passion for coding, experience in cloud environments like AWS or Azure, and the ability to provide technical leadership while working collab ...

Senior Full Stack Engineer Featured Office: London

At Emma, we are: Bold Determined Focused Autonomous We are a high-performance team and we run the company like a professional sports team . We expect each and every team member to move fast, have ownership over their work and hold ...

Senior Full Stack Engineer TypeScript/React (Hybrid)

FORT is seeking a Senior Full Stack Engineer to join their growing engineering team in Greater London. This role involves developing customer-facing features using TypeScript and React within a modern SaaS platform. The position offers a competitive salary of up to £100,000 and promotes a hybrid working model, a ...

Senior Full Stack Engineer – FinTech, Scale & Mentorship

A leading FinTech company is seeking a Senior Full Stack Engineer to join their London team. The role involves designing and developing scalable applications using Java, Spring, and Angular. You'll lead full stack projects, mentor junior engineers, and collaborate with cross-functional teams. Ideal candidates wi ...

Impactful Full Stack Engineer | Fintech Platforms (London)

A global asset management firm is seeking a Front End / Full-Stack Engineer in London to enhance investment tools. This mid-senior level position entails designing scalable platforms and collaborating with cross-functional teams to deliver efficient software solutions. Ideal candidates will have strong front-end ...

Full Stack Engineer for AI Avatar Platform

A leading AI production studio in Greater London is seeking a Full Stack Engineer to develop innovative applications and systems for digital characters. The role requires 5+ years of full stack experience, working collaboratively in a fast-paced environment, and offering real ownership over projects. You’ll be i ...

Senior Full Stack Engineer — Hybrid + Stock Options

A leading social impact organization in Greater London is seeking a passionate Senior Software Engineer to develop innovative platforms. In this role, you will work closely with an engineering team to build impactful applications, ensuring quality and security in your code. You should be skilled in both front-en ...

Senior Full Stack Software Engineer – Impactful & Flexible

A technology company based in the United Kingdom is seeking a talented Full Stack Software Engineer to build cutting-edge software solutions. This role involves developing and optimizing APIs, creating responsive frontends, and maintaining databases. The ideal candidate will have proven experience in API develop ...

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    Full Stack Developer Python Javascript Jobs in United Kingdom Job Search Guide, Trends and Insights