73 software engineer jobs found in London

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK)   Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale.   About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems.   What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment...

Determining compensation for this role (and others) at Vaco/Highspring depends upon a wide array of factors including but not limited to the individual’s skill sets, experience and training, licensure and certifications, office location and other geographic considerations, as well as other business and organizational needs. With that said, as required by local law in geographies that require salary range disclosure, Vaco/Highspring notes the salary range for the role is noted in this job posting. The individual may also be eligible for discretionary bonuses, and can participate in medical, dental, and vision benefits as well as the company’s 401(k) retirement plan.Additional disclaimer:Unless otherwise noted in the job description, the position Vaco/Highspring is filing for is occupied. Please note, however, that Vaco/Highspring is regularly asked to provide talent to other organizations. By submitting to this position, you are agreeing to be included in our talent pool for future...

Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Fullstack Experience Tech Stack - Kotlin Backend, JS/TS React Frontend Start date ASAP Duration 6 months (Likely to extend) 2/3 days / week in person working (London) Immediate Interviews The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages. Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning. We are based at Old Street in the heart of "tech city" and get thoroughly stuck in with the brilliant community around us. We run several...

Updated: 21 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment with real-world...

Joining a new project Ideally have worked on Financial Services Projects before (Payments would be great) Fullstack Experience Tech Stack - Kotlin Backend, JS/TS React Frontend Start date ASAP Duration 6 months (Likely to extend) 2/3 days / week in person working (London) Immediate Interviews The best bit about Red Badger is, of course, the team. We are really proud of our people; we support and learn a lot from each other; we work really hard but have fun doing it. We are a diverse group made up of 22 different nationalities, speaking 17 different languages. Our 3 founders, Dave, Cain and Stu, who have considerable tech and consultancy experience and still own 100% of the company. We've been consistently profitable and have grown responsibly from the beginning. We are based at Old Street in the heart of "tech city" and get thoroughly stuck in with the brilliant community around us. We run several...

Senior Software Engineer - Outside IR35 - Contract (Insurance) About the role Essential: Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with) Frontend: React + TypeScript + Vite Material UI with Emotion for styling TanStack React Query 5 for server state React Router 7 React Hook Form+Yup for forms/validation MSAL for Entra ID auth Jest+Testing Library for unit tests; Playwrightfor E2E and visual tests Hosted as an Azure Static...

We are GlobalLogic, a Hitachi Group Company and a leader in digital engineering. We help brands across the globe design and build innovative products, platforms, and digital experiences for the modern world. By integrating experience design, complex engineering, and data expertise - we help our clients imagine what's possible and accelerate their transition into tomorrow's digital businesses. At GlobalLogic, we have a strong track record of successfully delivering ground-breaking Cloud, Data & Digital Transformation programmes and we have an international reach working with a wide variety of projects and customers. Our approach enables companies to build the exceptional and be fit for purpose in the 21st century. We are seeking to hire an experienced Contract Software Engineer/AI Platform Software Engineer into our project team. This is a 12 month assignment (inside IR35), to start 2-4 weeks. This is a hands on, high impact role at the intersection of AI governance,...

Updated: 11 June 2026 Freelance 8–20 hrs/week Remote (EU/UK) Are you an experienced software engineer who instinctively spots gaps in technical reasoning and understands the complex realities of software development? Do you have 8 to 20 hours per week available alongside your main job or freelance projects? Join us in shaping how AI understands and applies software engineering expertise at scale. About the Role 10x.team connects expert freelancers with leading AI labs building next-generation models. We are looking for knowledgeable software engineers based in the EU or UK to enhance the accuracy, depth, and real-world relevance of AI-powered engineering systems. What You Will Do Review and refine AI-generated outputs related to software engineering, technical documentation, code quality, and practical aspects of software development Evaluate AI responses for technical accuracy, practicality, and alignment with real-world...

About the job   Senior Software Engineer - Outside IR35 - Contract (Insurance)   About the role   Essential:   Self-starter, someone who can pick up context quickly, drive outcomes efficiently, and to a high quality Competent in doing high-level designs, solution management, and scoping Understanding of data modelling best practices Ability to translate technical solutions to non-technical stakeholders and bring them on the journey Experience working in an agile delivery environment Experience working with React, TypeScript, Azure, Microsoft SQL, and Databricks (if they don’t have all of these, that’s workable, but be good to understand any they don’t have experience with)   Frontend:   React + TypeScript + Vite Material UI with Emotion for styling TanStack React Query 5 for server state React Router 7 React Hook Form+Yup for...

We are GlobalLogic, a Hitachi Group Company and a leader in digital engineering. We help brands across the globe design and build innovative products, platforms, and digital experiences for the modern world. By integrating experience design, complex engineering, and data expertise - we help our clients imagine what's possible and accelerate their transition into tomorrow's digital businesses. At GlobalLogic, we have a strong track record of successfully delivering ground-breaking Cloud, Data & Digital Transformation programmes and we have an international reach working with a wide variety of projects and customers. Our approach enables companies to build the exceptional and be fit for purpose in the 21st century. We are seeking to hire an experienced Contract Software Engineer/AI Platform Software Engineer into our project team. This is a 12 month assignment (inside IR35), to start 2-4 weeks. This is a hands on, high impact role at the intersection of AI governance,...

Who we are: We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £5.5 billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple and accessible through technology. Fast forward to today, and we are recognised as one of the most innovative fintechs, headquartered in the heart of London. With a team of 220+ people across 4 offices in Italy and the UK, we are proudly backed and funded by major partners including Poste Italiane, Cabot Square Capital, United Ventures, and Allianz. Our vision Our vision is to combine passion, expertise, and technology to provide best-in-class investment solutions and advice that protects and grows client wealth over time. Our Core Values: We’ve built our business on three Principles: Relationships are our first asset: We’re one team, built on trust,...

Who we are: We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £5.5 billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple and accessible through technology. Fast forward to today, and we are recognised as one of the most innovative fintechs, headquartered in the heart of London. With a team of 220+ people across 4 offices in Italy and the UK, we are proudly backed and funded by major partners including Poste Italiane, Cabot Square Capital, United Ventures, and Allianz. Our vision Our vision is to combine passion, expertise, and technology to provide best-in-class investment solutions and advice that protects and grows client wealth over time. Our Core Values: We’ve built our business on three Principles: Relationships are our first asset: We’re one team, built on trust,...

ABOUT US: Here at Sphere (www.onsphere.com) we operate in the dynamic world of energy commodities trading, where information and speed are crucial for success. However, data in these markets is often fragmented and opaque, leaving participants with incomplete and poor-quality information…. Here at Sphere, we aim to bring order to this chaos by leveraging our innovative voice and AI technologies, as well as our patented Liquidity Lake, which consolidates all actionable liquidity onto one screen. Enhanced by AI insights and quantitative analytics, our platform is designed to support even the most skilled traders; See more. Win more. THE OPPORTUNITY: Pick up and own, the transformation of a typescript library running within Electron Produce recommendations for improvements to the interaction of the typescript library with the server backend and separately with the UI Refactor the library to drastically reduce the daily maintenance...

Senior Data Engineer - Outside IR35 - Contract (Insurance Client) About the role Softwire is seeking an experienced Data Engineer with a strong knowledge of Python (including PySpark) and SQL, and a good understanding of software engineering best practices (including SDLC, CI/CD, automated testing, DevOps) to join an established small team working on delivering a data & analytics platform in Microsoft Fabric for a speciality insurance provider. This is a senior, hands-on role that will require owning and delivering workstreams independently while supporting a junior team member. Key Responsibilities Building new ingestion pipelines in Microsoft Fabric using Python (PySpark) notebooks Modelling data for consumption in Power BI through a dimensional gold warehouse layer and a semantic model Improving platform performance Working across cross-functional areas such as logging, monitoring (with Azure Log Analytics and Fabric) and data governance (within...

Description We are seeking a passionate Software Engineering Manager with a strong background in modern frontend engineering, particularly React, Next.js, and TypeScript, to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams -designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a best-in-class frontend engineering capability, establishing modern development practices and building scalable, high-performance web applications. This is an initial 6-month contract (outside IR35) requiring 3 days per week onsite in Paddington, London. Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of frontend engineers specialising in React, Next.js, and TypeScript. Foster a culture of collaboration, technical excellence, and continuous improvement....

React Engineer About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money.We're building one of the world's leading fintech companies and are off to a strong start: • One of the UK's newest unicorns with a team of just over 700 people • Among the fastest-growing tech companies in the UK • Profitable since 2017 • Backed by top investors including Balderton Capital and Goldman Sachs • Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot) So far, we've rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance . We get money into our customers' hands in minutes instead of days. We're growing fast, and there's a lot more to do: we're going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes. Join us...

React/React Native Engineer About Lendable Lendable is on a mission to build the world's best technology to help people get credit and save money.We're building one of the world's leading fintech companies and are off to a strong start: • One of the UK's newest unicorns with a team of just over 700 people • Among the fastest-growing tech companies in the UK • Profitable since 2017 • Backed by top investors including Balderton Capital and Goldman Sachs • Loved by customers with the best reviews in the market (4.9 across 10,000s of reviews on Trustpilot) So far, we've rebuilt the Big Three consumer finance products from scratch: loans, credit cards and car finance . We get money into our customers' hands in minutes instead of days. We're growing fast, and there's a lot more to do: we're going after the two biggest Western markets (UK and US) where trillions worth of financial products are held by big banks with dated systems and painful processes....

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Front-End Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside a full-time role, while...

Basic information Location London Business Line Technology & Transformation Job Type Contract Date published 11-May-2026 Req # 22638 Job description Job Title: Senior Cloud Engineer (contract) Location: London Hybrid. Travel to the London office 3 days a week Duration: 11 months Contract Start Date: ASAP *note client onboarding takes 6 weeks from offer Day Rate: Competitive (Inside IR35) Deloitte Working with the Deloitte Associate (Contractor) Programme means we can offer you the opportunity to work on a variation of industry and client related projects. Our aim is to retain the best talent and so when your project end date nears our team of Talent Community Advisors will be working with you to look at alternative projects within the firm that suit your experience should you wish to continue with Deloitte. The...

Job details Posted 14 May 2026 Salary Competitive LocationLondon Job type Fixed Term Full-Time DisciplineTapi Central Roles Reference003142 Senior Full Stack Engineer (Developer) London Bridge /Hybrid (1–2 days per week in the office) 6 month contract We’re looking for a Senior Full Stack Engineer to help build and evolve the digital platforms that power customer journeys, e-commerce and operational systems across Tapi. This is a hands-on engineering role within a growing product and technology team, focused on delivering scalable, high-performing applications that make a measurable impact on both customer experience and commercial performance. You’ll work across end-to-end delivery, from understanding user and business problems through to designing, building and improving scalable solutions using React, C# .NET and Microsoft Azure. We’re looking for someone who takes real pride in the products they...