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Graduate Software Engineer — Hybrid London, DevOps & Cloud

A forward-thinking technology company is seeking a Graduate / Junior Software Engineer in Greater London. This hybrid role provides an exciting opportunity for early-career professionals to work on a modern infrastructure stack and gain hands-on experience. Responsibilities include automating DevOps workflows, m ...

Senior Full Stack Engineer: Build Impactful Apps

Outsmart Insight in Greater London is seeking a Senior Fullstack Software Engineer to design, build, and maintain production systems for their platform. This role requires 8-15 years of experience, primarily in a backend-heavy capacity with strong expertise in Python and operational efficiency. You will work on ...

Lead Edge AI Engineer for Climate Impact Automation

A climate technology firm located in the UK is looking for a Lead Engineer to join their platform team. This role involves leading the design of edge software systems for heavy industry focusing on reducing carbon emissions. Candidates should have expertise in Python and plant automation, along with a willingnes ...

AI Systems Engineer — Production Grade LLMs & RAG

SLR Consulting is looking for an AI Development Engineer to design and implement production-grade AI systems. The role requires strong backend engineering skills, proficiency in Python, and experience with large language models. Responsibilities include building retrieval pipelines, knowledge indexing, and deplo ...

AI Agent Engineer — Build Scalable Conversational Tech

Decagon, based in Greater London, seeks an experienced software engineer to join the Agent Engineering team. This role focuses on designing and building AI agents to enhance customer interactions across various industries. Ideal candidates should have over 3 years of experience, expertise in Python and Typescrip ...

Staff & Principal Product Engineer — Build with Impact

Fifth Dimension is looking for a Software Engineer in Greater London to take ownership of product areas end-to-end, from design to delivery. You will collaborate across teams to build scalable solutions, lead projects involving backend APIs, and ensure a strong user experience. The ideal candidate has strong Pyt ...

Forward Deployed Full Stack AI Engineer

A leading AI technology firm is looking for a Full Stack Software Engineer (Forward Deployed) to collaborate with public sector teams in building impactful AI applications. The role involves designing architectures, mentoring staff, and ensuring scalable solutions. Ideal candidates will have a Master's or PhD in ...

Lead Software Engineer, Frontier AI Platform (Hybrid)

A leading AI consultancy, located in Greater London, is looking for a Lead Software Engineer to scale their groundbreaking Frontier Decision Intelligence platform. The role involves driving technical contributions, designing customer-facing solutions, and collaborating with cross-functional teams. Ideal candidat ...

Lead AI Engineer: Agent Platform Architect

A leading AI-driven e-commerce platform in Greater London is seeking a Lead AI Engineer to oversee the architecture and technical direction of the agent platform. This role will involve building scalable conversational AI agents using modern JavaScript and Python frameworks. The ideal candidate has over 6 years ...

Staff Software Engineer AI Driven, Scalable Systems Lead

A leading technology firm in the UK is looking for an experienced software engineer with expertise in distributed systems and strong leadership skills. In this role, you will tackle complex challenges, guide teams towards systemic improvements, and define the integration of AI tools in engineering processes. Ide ...

Immunoinformatics Engineer: AI Driven Drug Discovery

A leading pharmaceutical company in the UK is seeking an Immunoinformatics Engineer to develop innovative AI technologies for drug design. This role involves collaborating with diverse teams, building strong partnerships, and driving software projects from inception to completion. The ideal candidate holds a Mas ...

Founding Software Engineer – YC‑Backed Startup London

A YC-backed startup in London seeks a Senior Software Engineer to join their founding team. This role involves working closely with founders, shaping the product, and making key technical decisions. You'll directly impact product direction while working in a hybrid model, splitting time between the office and re ...

AI Platform Engineer Production Grade Azure Pipelines

A global CEO advisory firm is seeking an Engineer to join their rapidly growing AI team in London. The successful candidate will build and operationalize high-value AI workflows and integrate AI capabilities into various products. Responsibilities include developing end-to-end implementations, collaborating with ...

Senior Modelling Engineer, AI Accelerator Pre Silicon

A leading AI technology firm is seeking a Senior Modelling Engineer to develop pre-silicon models for innovative AI acceleration hardware. You will collaborate closely with hardware, software, and machine learning engineers to drive product design and verification. Ideal candidates will have over 5 years in semi ...

Principal DevOps Engineer: CI/CD & Internal Tools

A global travel technology company in Greater London is looking for an experienced DevOps Engineer with over 10 years of experience in Software Engineering. This role involves maintaining CI/CD best practices, automating security testing, and developing internal tools to enhance development efficiency. Ideal can ...

Senior Product Security Engineer – Hybrid (2 days WFH)

A top financial firm in London is seeking a Senior Product Security Engineer with strong experience in securing software development. This role will focus on collaborating with IT and engineering teams to lead security processes and ensure protection across cloud and business applications. Candidates should have ...

Modelling & Simulation Engineer — Autonomy & Wargaming

A defense technology firm in Greater London is seeking a Software Engineer to lead the development of advanced modeling and simulation applications. The ideal candidate will have strong C++ and Python skills, and will work on mission-level analysis and wargaming projects. This role emphasizes practical, hands-on ...

Senior Research Platform DevOps Engineer

A leading AI technology company in London is seeking an experienced Software Engineer to join their Research Platform team. The role entails building a cloud-agnostic platform to enhance stability and scalability for researchers. The ideal candidate has 5+ years in DevOps/SRE roles, proficiency in Python and Go, ...

Applied AI Engineer for Startups on Claude Platform

A leading AI research company in London is looking for an Applied AI Engineer to serve as a technical advisor to AI startups. You'll leverage your expertise in software engineering and LLM-powered applications to guide startups, build scalable architectures, and create technical resources. Ideal candidates will ...

London Full Stack Engineer: End to End Ownership

A tech startup in Greater London is seeking a Full-Stack Engineer to join their small team. The ideal candidate will own the delivery of product features, write backend logic, and build user interfaces using React. The position requires 3-5 years of experience in software development and a strong proficiency in ...

Software Engineer AI Driven Travel Platform | Equity

A tech company focused on travel solutions is seeking a Software Engineer to work closely with the product team to design, architect, and implement innovative web-based products. Candidates should have extensive programming experience in web languages, particularly for backend systems, and a passion for quality ...

Production ML Engineer Life Sciences, Hybrid

A leading AI solutions firm in London is seeking a Machine Learning Engineer to deliver impactful AI solutions for diverse clients. You will build and deploy production-grade ML software while collaborating with cross-functional teams to solve critical challenges. This role requires strong Python expertise, unde ...

Staff ML Engineer: LLMs for Legal AI, Visa Sponsored

A leading software company in the UK is looking for a Staff ML Engineer to lead the development of large language models for legal applications. You'll design ML architectures, manage training and fine-tuning of models, and mentor a team of engineers. The role requires expertise in Python and machine learning fr ...

Senior Frontend Product Engineer — Climate Tech (Equity)

A climate-tech startup in Greater London is seeking a talented Senior Product Engineer to drive the frontend architecture for innovative software products. You'll own complex features and ensure high-quality user experiences. Ideal candidates have significant experience with React/Next.js and Python. The role al ...

Hybrid Full Stack Engineer – AI Platform + Equity (London)

SR2 REC LTD is looking for a Full Stack Software Engineer based in London to build innovative AI products. You will work in a hybrid environment with one day per week on-site, developing features across both backend and frontend. The ideal candidate has strong skills in Python and Vue.js, along with experience b ...

Lead Software Engineer – Fintech for Fair Wages (Hybrid London)

Wagestream is seeking a Lead Software Engineer to join their team in London. The role allows for hybrid working, blending time in the London office with remote work. The ideal candidate will work on innovative financial products while collaborating with cross-functional teams. Key technologies include Python, Ty ...

Senior Fullstack Engineer — Platform Architect

A growing engineering company in Greater London is seeking a Senior Fullstack Software Engineer responsible for designing, building, and maintaining critical production systems. The role emphasizes ownership, systems thinking, and high-quality engineering on mature platforms. The ideal candidate will have 8-15 y ...

Distributed Runtime: Process Orchestration Engineer (Rust)

A leading AI research organization in London is seeking a Training Runtime: Process Management Engineer to develop high-performance distributed systems using Rust and Python. This role involves overseeing machine learning workloads across supercomputers, focusing on reliability, performance, and observability. T ...

Internal Tools Engineer, Safeguards Foundations

A leading AI safety firm based in London is seeking a Software Engineer to enhance internal tooling used for review and enforcement processes. The ideal candidate should have over 4 years of experience, strong knowledge of Python and React, and the ability to work closely with both technical and non-technical te ...

Founding AI Engineer: Build Enterprise Risk Platform

Jack & Jill is seeking a Founding Engineer in London to build and ship core AI features for a transformative platform in commercial insurance. As part of a high-caliber founding team, you will have a unique opportunity to handle the technical lifecycle, with engineering responsibilities that extend from developi ...

Senior Software Engineer II Wise for Enterprise Banks

Job DescriptionAbout the role We’re looking for a Senior Software Engineer II to join our Wise for Banks team and help shape the technical direction of the systems powering Wise’s global payment network. In this role, you’ll operate at the intersection of engineering, pr ...

Senior Software Engineer II Wise for Enterprise Banks

Job DescriptionAbout the role We’re looking for a Senior Software Engineer II to join our Wise for Banks team and help shape the technical direction of the systems powering Wise’s global payment network. In this role, you’ll operate at the intersection of engineering, pr ...

Quantitative Developer Crypto

We are seeking a Quantitative Developer to join a premier digital asset trading desk. This role sits at the intersection of sophisticated software engineering and quantitative finance, working closely with traders and researchers to build, refine, and scale the infrastructure behind high-performanc ...

Quantitative Developer Crypto

We are seeking a Quantitative Developer to join a premier digital asset trading desk. This role sits at the intersection of sophisticated software engineering and quantitative finance, working closely with traders and researchers to build, refine, and scale the infrastructure behind high-perf ...

Quantitative Developer Crypto

We are seeking a Quantitative Developer to join a premier digital asset trading desk. This role sits at the intersection of sophisticated software engineering and quantitative finance, working closely with traders and researchers to build, refine, and scale the infrastructure behind high-perf ...

Software Development Engineer, Rufus on Detail Page

DescriptionRufus is a generative AI-powered shopping assistant in the Amazon Shopping app designed to help answer a variety of shopping-related questions. Rufus makes it easy for customers to find and discover the best products to meet their needs by helping with product research, providing comparisons and r ...

Senior Engineering Manager, Proactive Security

Who We Are Join us in our mission to transform the way people shop and eat, where impact, innovation and growth drive everything we do. Our Engineering teams tackle complex technical challenges across a global, three-sided marketplace, building and scaling systems that serve millions of customers ...

AI/ML Engineer

In this role you will Develop back end code for a Python web application Design code architecture to operationalise mathematical models and algorithms Build models, services, and libraries that fulfil the stated API contract and metrics for a project Integrate ...

Software Developer Trainee

Job Description Make your application after reading the following skill and qualification requirements for this position.Are you looking to benefit from a new career in Software Development? Skills shortages in the IT sector is driving the need for qualified, entry-level career seekers a ...

Data Engineer | Dynamic Tier 1 Investment Management Firm

This range is provided by Selby Jennings. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Selby Jennings We are on the lookout for a talented Data Engineer to join a high performing f ...

Application Security Engineer

The Role: This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product tea ...

Application Security Engineer

The Role This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product teams to i ...

Application Security Engineer

The Role:This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product teams to increa ...

Application Security Engineer

The Role:This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product teams to increa ...

Security Engineer Product Security

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. Were redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace.Our momentum comes ...

Security Engineer Product Security

Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. Were redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace.Our momentum comes ...

Software Developer Trainee

Are you looking to benefit from a new career in Software Development? Skills shortages in the IT sector is driving the need for qualified, entry-level career seekers and career changers. We help place graduates from this programme in top UK companies and organisations needing to employ entry-lev ...

AI Engineer

Who Are We Hansen Technologies is a leading global provider of software and services that enable organisations to transform customer experiences and streamline critical business processes. With a rich history of innovation and a footprint that spans over 80 countries, Hansen empowers utilities, e ...

Engineering Lead

Job Title JOB TITLE: Engineering Lead (Engineering Internal Developer Platform) SALARY: From £126,000 dependent on experience and location LOCATION(S): London, Edinburgh or Leeds HOURS: Full-time WORKING PATTERN: Our work sty ...

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    Software Engineer Python Java Data Jobs in London Job Search Guide, Trends and Insights