Web engineer jobs in United Kingdom - Page 6

We are representing a well-funded startup building safe, beneficial systems that advance human progress. Backed by leading international investors and founders from some of the world’s most influential technology companies, this team is developing a next-generation platform for AI evaluation and reliability - empowering engineers and researchers to better understand and improve their agents. This role would suit someone who is a frontend developer, Founding Engineer, or a FullStack Engineer who is leaning towards the frontend. The Role As a Product Engineer focused on Frontend, you’ll help design and deliver intuitive user experiences that make AI evaluation seamless and insightful. You’ll take ownership of the customer-facing platform. You’ll work closely with founders, engineers, and researchers to bring complex AI technology to life through elegant design and thoughtful product decisions. Key Responsibilities • Own and build core features of the platform that allow users to visualise, analyse, and improve AI performance, • Design intuitive end-to-end user journeys - from onboarding to detailed trace analysis, • Collaborate cross-functionally to translate cutting-edge AI capabilities into accessible, high-impact products, • Ship full-stack features when needed, ensuring smooth performance and scalability across the system About You • 5+ years of professional experience building frontend products in TypeScript/React or similar frameworks, • Strong understanding of UI/UX design principles, with a focus on clean, responsive layouts and great user experience, • Product-driven mindset: you think deeply about the “why” behind what you build, • Experience with relational databases and deploying applications to modern cloud environments, • Comfortable working in a fast-moving, highly collaborative startup environment Nice to Have • Background in developer tools, AI, or ML products, • Familiarity with modern web stacks, • Experience working in early-stage, high-growth environments, • Python knowledge is a plus Our client values in-person collaboration and connection at their early stage. This is an in-office role - You must be able to work in Kings Cross, 4-5 Days per week. Beautiful offices, full setup, focus areas and on-site Gym.

Tangible is a fast-growing, tech-driven platform providing liquidity solutions to LPs and GPs in the private-markets secondaries space. By combining deep sector expertise with modern infrastructure, we unlock liquidity across private equity, private credit, and real assets, transforming the industry and enabling investors to move faster and smarter. We are looking for a Senior Automation Testing Engineer to lead the design, implementation, and execution of automated testing frameworks across our platforms. The ideal candidate has extensive experience in building reliable, scalable test automation systems, with a focus on ensuring product quality, performance, and security in a fast-paced startup environment. This role is open globally to full-time contractors who can work standard Central European Time (CET) hours. Tasks Design, develop, and maintain robust automated test frameworks for web applications and APIs. Define and execute test strategies, plans, and scripts to validate functionality, scalability, and performance. Integrate automated tests into the CI/CD pipeline to ensure continuous quality validation. Collaborate closely with developers, product managers, and DevOps engineers to identify risks and ensure test coverage. Champion quality standards, best practices, and metrics for monitoring test effectiveness. Perform root cause analysis of defects and contribute to preventive measures. Mentor and support junior QA engineers, fostering knowledge sharing and team development. Contribute to system-wide improvements by proactively identifying gaps in automation, tooling, or processes. Requirements 3+ years of professional experience in test automation engineering. Strong expertise with automation frameworks such as Playwright, Cypress, or Selenium. Proficiency in at least one programming language used for automation (e.g., Python, JavaScript, or Java). Solid understanding of CI/CD pipelines and experience integrating test automation into build processes. Experience with API testing tools (e.g., Postman, RestAssured) and database validation (SQL). Familiarity with performance and load testing tools is a plus (e.g., JMeter, k6). Excellent communication skills in English, with the ability to collaborate effectively across teams. Experience using AI-assisted development/testing tools (e.g., Cursor AI) to enhance test coverage and efficiency. Thrives in a fast-moving startup environment - flexible, proactive, and self-directed. If you meet the requirements above you’re excited to shape the future of private markets and work alongside a brilliant team of engineers, ex-bankers, and startup superstars, we’d love to hear from you. Tangible is transforming the way secondary markets work for LPs, GPs and wealth managers. We combine technology and deep private markets expertise to bring transparency, efficiency and simplicity to secondary transactions. Our products enable more LPs to sell on the secondary market and empower GPs and wealth managers to create scalable liquidity solutions for their investors.

Job Description Job title: Power Automate Developer (Cloud Flows PAD) Clearance: Eligible for NPPV Level 2 (policing) or willing to undergo similar vetting The role: You’ll build secure, supportable automations using Power Automate (Cloud) and Dataverse, and use Power Automate Desktop (PAD) only where UI automation is unavoidable. You’ll engineer for robustness—idempotency, retries, telemetry—and deliver packed solutions through CI/CD. Requirements What you’ll do: Implement Dataverse schema, cloud flows, connection references, environment variables, and telemetry (App Insights). Build PAD automations with resilient selectors, dynamic waits, exception handling, screen-on-error, and credential isolation via Key Vault. Migrate legacy RPA (e.g., Blue Prism) to API-first or hybrid patterns. Write unit/integration tests and contribute to SAT; instrument performance and success rates. Package as managed solutions ; collaborate on pipelines (pack/unpack, Solution Checker, gates). Produce runbooks, KB articles, and supportable config (feature flags, routing rules). Fix defects quickly; participate in Go/No-Go, smoke tests, and hypercare. What you’ll bring: 3–6+ years building automations (Power Automate, PAD, or equivalent RPA). Real-world experience with Dataverse, premium connectors, connection management, retries/backoff, and idempotency. Practical CI/CD exposure on Power Platform (PAC CLI, solution checker, pipelines). Good grasp of secure coding for automations: no secrets in code, least privilege, DLP awareness. Clear documentation and teamwork—you leave maintainable, observable solutions. Nice to have: .NET/TypeScript for Functions/PCF; APIM policies; UI automation in complex desktop/web apps; any Blue Prism migration experience. Benefits Why Join Us? Work on cutting-edge technologies and impactful projects. Opportunities for career growth and development. Collaborative and inclusive work environment. Competitive salary and benefits package. Requirements What you’ll do: Implement Dataverse schema, cloud flows, connection references, environment variables, and telemetry (App Insights). Build PAD automations with resilient selectors, dynamic waits, exception handling, screen-on-error, and credential isolation via Key Vault. Migrate legacy RPA (e.g., Blue Prism) to API-first or hybrid patterns. Write unit/integration tests and contribute to SAT; instrument performance and success rates. Package as managed solutions; collaborate on pipelines (pack/unpack, Solution Checker, gates). Produce runbooks, KB articles, and supportable config (feature flags, routing rules). Fix defects quickly; participate in Go/No-Go, smoke tests, and hypercare. What you’ll bring: 3–6+ years building automations (Power Automate, PAD, or equivalent RPA). Real-world experience with Dataverse, premium connectors, connection management, retries/backoff, and idempotency. Practical CI/CD exposure on Power Platform (PAC CLI, solution checker, pipelines). Good grasp of secure coding for automations: no secrets in code, least privilege, DLP awareness. Clear documentation and teamwork—you leave maintainable, observable solutions. Nice to have: .NET/TypeScript for Functions/PCF; APIM policies; UI automation in complex desktop/web apps; any Blue Prism migration experience.

About REalyse REalyse operates in the PropTech space with a focus on data and analytics. We’ve built the foundational technologies powering some of the most advanced property data tools in the UK, enabling our customers to make better, faster, data-driven real estate decisions. Our products bring together massive datasets on property, planning, demographics, and investment performance into a unified platform. We’re a small, ambitious, and technically strong team solving complex problems in a fast-moving industry — and we’re looking for someone who wants to help shape the next generation of property intelligence products. The Role We’re looking for a senior full-stack engineer who combines strong technical depth with an entrepreneurial mindset — someone who can prototype quickly, deliver end-to-end , and help us scale and evolve our platforms. You’ll work across our modern data and application stack — from TypeScript and React on the front end, to Golang and PostgreSQL/ClickHouse on the backend, all deployed through AWS. You’ll have a high degree of autonomy, working within a small cross-functional team that moves fast and values clarity, quality, and measurable business impact. Requirements What You’ll Do Design, build, and maintain performant front- and back-end systems across our data and analytics products. Prototype rapidly and iterate on ideas that can become new products or core features. Deliver production-quality code and infrastructure that scales reliably. Collaborate with product, data, and design to turn concepts into shipped features. Contribute to architectural decisions and technical strategy. Mentor and support other engineers in modern full-stack development practices. Help evolve our CI/CD and deployment pipelines, with a focus on automation, observability, and developer experience. What You’ll Bring We’re not looking for a “jack of all trades” — we’re looking for someone who excels in full-stack development across most of our stack and is eager to close any remaining gaps fast. You’ll need to show strong, hands-on experience with: TypeScript React (including modern tooling and patterns) TailwindCSS or an equivalent styling framework XState or other state machines for predictable UI logic REST GraphQL API design and integration Data visualisation (e.g. D3.js, Recharts, or similar) Golang (our core backend language) PostgreSQL ClickHouse , including schema design and query optimisation Automated testing , including unit and end-to-end (we use Vitest Playwright) AWS , particularly ECS, Fargate, S3, CloudFront, Lambda, and related DevOps tooling Highly Desirable Familiarity with geospatial data and web mapping (e.g. vis.gl, Deck.gl, Mapbox, PostGIS) Proven experience building and optimising APIs for large data volumes Ability to design, set up, and maintain CI/CD pipelines Experience with React Native and delivering mobile app experiences Experience working with AI-assisted tooling (e.g. GitHub Copilot, Cursor, or prompt-based workflows) and awareness of their trade-offs Demonstrated ability to work in a start-up or scale-up environment, wearing multiple hats when required Strong sense of product ownership — you can articulate not only how something should be built, but why Who You Are You think and act like an owner — entrepreneurial, proactive, and self-driven. You can move fast without compromising quality. You’re comfortable with ambiguity and thrive in an environment where priorities evolve. You care about measurable impact — technical, product, and business. You value clarity, simplicity, and maintainability in your work. Benefits [TBC] per annum , depending on experience 25 days annual leave + generous parental leave Regular social events, meetups, and game nights International and diverse team culture Educational resources and professional development opportunities Hybrid working flexibility

Job Description Job Description: Location: City of London, England, United Kingdom Employment Type: Full-time, On-site About the Role: Join a purpose-driven team dedicated to making a positive impact in the food supply chain through innovative technologies. The ideal candidate is self-motivated, skilled at multitasking, and a strong team player committed to quality. Responsibilities: Manual Testing Skills: Conduct advanced testing of mobile applications developed in React Native, including UI/UX, functional, and regression testing. Perform thorough testing of web applications focusing on cross-browser compatibility and responsive design. Test backend APIs through endpoint, integration, and security testing. Automation Testing Skills: Develop and maintain automated test scripts to enhance testing efficiency. Automate API testing using tools such as Swagger and Postman. Use scripting languages and frameworks to support test automation. Monitoring and Reporting Tools: Utilize Sentry and AWS CloudWatch for real-time error tracking, performance monitoring, log management, and crash reporting. Monitor third-party logistics and payment dashboards to ensure seamless integration and optimize performance. Additional Technical Skills: Apply comprehensive software QA methodologies including agile and waterfall models. Write clear, detailed test plans and cases for functional and non-functional testing. Work with CI/CD tools like Jenkins or GitLab CI/CD to integrate automated tests into deployment pipelines. Manage source code through version control systems such as Git. Preferred Requirements: Experience using JMeter for performance and load testing, including designing and executing test plans for various load conditions. Knowledge of advanced JMeter features like distributed testing and custom scripting. What to Expect: Collaborative, joyful, and purpose-driven work environment. Multicultural, dedicated, and growing team. Modern office in Central London with amenities such as showers, bicycle racks, and dining areas. Competitive salary. Job Type: Full-time Salary: DOE Requirements Bachelor's degree in computer science, engineering, business administration, software engineering, or related field, Associate degree or diploma in Quality Management, Software Testing, Manufacturing Technology; Certifications: Certified Software Quality Engineer (CSQE), ISTQB Certified Tester, Certified Quality Auditor (CQA); Skills: Manual testing, Automation testing (API testing with Swagger, Postman), Scripting languages, Monitoring tools (Sentry, AWS CloudWatch), Test planning, CI/CD (Jenkins, GitLab CI/CD), Version control (Git), Performance testing (JMeter), Attention to detail, Analytical thinking, Communication skills, Problem-solving, Time management, Quality assurance methodologies (Agile, Waterfall)

Senior API Engineer - PHP - £90k + Bonus - Full Remote. We’re searching for a talented senior API developer with a background in building scalable web services around the PHP stack to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring

Job Title: Senior Software Engineer Location: London (Hybrid/Remote options available)\n We are seeking a talented and motivated Software Engineer with 5+ years of experience to join our dynamic team based in London.You will be instrumental in developing, deploying, and maintaining scalable web appl

You'll play a key role in resolving platform-related issues and supporting both internal and external customers.Surrey - 40 minutes by train from London (if you drive, there is parking).PAYE (paid on a weekly basis) - with a strong possibility of conversion to FTE depending on performance and budget

Senior Software Engineer / Developer (Full Stack JavaScript) London to £100k \n Opportunity to progress your career in a senior, hands-on Software Engineer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation,

Required Experience \n Proven track record building and scaling Kafka-based architectures in production \n~ Deep expertise with Spring Boot (Security, Web, and Data modules)\n~ Experience designing and maintaining eve

As a Software Engineer you will design and develop large, distributed, scalable web based systems, working within a modern cloud (AWS) microservices based environment; you'll be primarily using Typescript and Node for backend development, but will also have exposure to React on the frontend. You hav

NET Developer - Investment Bank - London.NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, Architect, Graduate.Our client is the world's most respected banking institution.Their story dates back to the 1890s and today they operate from ove

Job Title: Senior Software Engineer Location: London (Hybrid/Remote options available)\n We are seeking a talented and motivated Software Engineer with 5+ years of experience to join our dynamic team based in London.You will be instrumental in developing, deploying, and maintaining scalable web appl

You have strong full stack web development experience using TypeScript and Node. Software Engineer / Developer (TypeScript) London to £75k \n Opportunity to progress your career at a Tech for Good company that is enabling life changing education to be accessed by students around the world. As a Sof

Senior Software Engineer Web | Fully Remote (UK)\n Founding Engineer | TypeScript | Next. React | Tailwind | Shadcn | GCP | Prisma \n\n An innovative, mission-driven LegalTech SaaS start-up is looking for a Senior Product Engineer (Web & Frontend) with deep experience in Typescript, React and Pr

NET 9, C#, Web API 2, Entity Framework, Microservices, Azure, Programmer, Developer, Engineer,. NET Architect)In 2012 our client that has been taking the US by storm. NET Architect to bring their product to these new markets and help enhance this already successful company!.

As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You architect high quality web applications, and design key tools and systems that support said web applications. Test, debug, maintain and/or update full-stack web appli

Senior Software Engineer | Rust/ C++ | TypeScript | Web SDK | WebAssembly/ WASM | Remote | £90,000 + 10% bonus & shares \n I am currently working with a brilliant company specialised in creating technology products within the cyber security space, they have been incredibly successful and have r

Job Description Senior Django Developer | FinTech | Permanent | Hybrid | Central London - Senior Software Engineer - Start-up Fintech - 2 days a week in the office (Central London) B2B FinTech in Central London are looking for a Senior Django Developer to help design, build, and scale their web a

Senior API Engineer - PHP - 90k + Bonus - Full Remote. Were searching for a talented senior API developer with a background in building scalable web services around the PHP stack to join our team and dive into building a one-of-a-kind platform that manages finances for super yachts and touring bands

Job Description Senior Django Developer | FinTech | Permanent | Hybrid | Central London - Senior Software Engineer - Start-up Fintech - 2 days a week in the office (Central London) B2B FinTech in Central London are looking for a Senior Django Developer to help design, build, and scale their web a

The Data Centre Chief Engineer (CE) is responsible for ensuring that all electrical, mechanical, and fire/life safety equipment within the data centre is operating at peak efficiency. Amazon - London - DESCRIPTION Amazon Web Services (AWS) is looking for a detail-oriented individual to join our Data

Partner with product managers, designers, and engineers to deliver a great experience.

Principal Engineer - Cross-platform Architecture - Mobile and Web. Partner with product, design, and engineering teams to shape solutions that deliver great user experiences while meeting engineering constraints. Web-Tools Engineer | Europe | Fully Remote.

As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You architect high quality web applications, and design key tools and systems that support said web applications. Job Title: Golang Consultant Or Full Stack Engineer.

We’re looking for a Full Stack Programmer to join PlayCanvas! As a member of the PlayCanvas team, you will help shape the 3D web. Experience architecting and developing complex web applications. Experience leading small to medium teams of engineers.

We are looking for a Senior Frontend Engineer to help us build interfaces for groundbreaking Web3 applications, which will become critical pieces of infrastructure for the next stage of crypto adoption. Build user flows across both web and mobile. Work closely with Product, Design, and Engineering t

The Web Platform is a set of opinionated tools (Next. TypeScript, NX, Playwright, Jest, GitHub Actions) used by anyone building web apps at M&S.

Job Role: Staff Engineer (Adobe AEM/Java) Working Model: Full-Time - Remote (with occasional quarterly workshops/events) Salary: Up to £84,000 + Excellent Benefits Are you a senior engineer who thrives on leading technical strategy, driving engineering excellence, and mentoring others? Do you enjoy shaping platforms at scale while staying hands-on with modern technologies? This is a fantastic opportunity to join a major organisation as they rebuild their Digital Experience Platform, moving away from a legacy monolithic system to a modern, cloud-native, customer-first solution. You'll play a key delivery-focused role, supporting multiple squads and working alongside Principal Engineers and senior stakeholders to deliver complex, high-impact initiatives. Ideal Candidate: Proven experience as a Senior/ Staff Engineer within web and mobile application development Strong expertise in Adobe AEM and Java (frontend-weighted, 60% web / 40% backend) Experience designing and delivering micro frontend architectures with module federation Deep knowledge of CI/CD, automation, and testing frameworks across unit, integration, E2E, and non-functional testing Cloud-native expertise, ideally GCP or Azure (open to AWS) Skilled in Docker, Kubernetes, Helm, Terraform Knowledge of secure development practices , OWASP, authentication/authorisation Familiar with mobile frameworks (e.g. Ionic Capacitor) Strong track record of technical leadership and mentoring across squads Able to engage stakeholders up to C-suite level, influencing without direct authority What's on offer? Up to £84,000 salary 33 days holiday (increasing with service) Private health cover option 6% matched pension contributions Funded qualifications & extensive L&D opportunities Discounts on insurance & breakdown cover Life event loan up to £3,000 About the Role: Join at a critical stage as phase 1 of a new Digital Experience Platform goes live Support 5-6 squads as their most senior delivery-focused technical leader Partner with the Principal Engineer (strategy-focused) to shape technical direction Drive engineering quality, security, scalability, and best practices across squads Act as a mentor, challenger, and enabler - showing teams what good looks like If this sounds like the right challenge for you, drop me a message or apply today - we'd love to chat! Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you. TPBN1_UKTJ

Software Engineer – Kotlin, Java, AWS | Worldpay Total | London. Specific strong Kotlin/Java experience, including development of secure web services (REST/SOAP).

AWS builds and operates some of the largest internet infrastructure on the planet, providing customers with an infrastructure web services platform in the cloud. You will operate and engineer systems on a massive scale and gain world-class experience in cloud computing. Systems Engineers apply Linux

We are seeking a talented senior Web Engineer with a strong background in web development and JavaScript to join a focused feature team of three engineers. Collaborate closely with product managers, designers, backend engineers, and other web teams. Engineering and Information Technology.

As a frontend engineer at Photoroom, you'll join a 10-person web team where you'll architect scalable solutions for millions of users, integrate cutting-edge AI features, and directly shape the product that entrepreneurs worldwide rely on to create stunning visuals. WebAssembly experience, visual to

Review token models (distribution, incentives, governance) and protocol dynamics with internal token economists. Is comfortable navigating and assessing Web3 and token-based architectures (e. Has a good understanding of token designs, economies, and engineering.

BSQ Talent is excited to announce our partnership with a pioneering financial firm that stands out as a leader in the dynamic and rapidly evolving field of algorithmic trading.They are looking for a highly skilled.Web Engineer/Software Engineer.You'll create essential UIs and backend processes for A

No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Takeaway.

We are seeking a highly skilled and experienced Senior Web Frontend Engineer, specialising in frontend architecture, to join our team. In this role, you will be responsible for designing and implementing a scalable, high-performance web application that delivers exceptional user experiences. You wil

We are hiring a Senior Software Engineer on the Web Engineering team to drive best practices across the team, for all disciplines, bringing great ideas to the table to lead technical conversations. Principal Engineer - Cross-platform Architecture - Mobile and Web. Web-Tools Engineer | Europe | Fully

Our Senior Client Integration Engineers are experienced client facing digital technologists. An Epsilon Client Integration Engineer is a unique hybrid role within our company that combines aspects of a web technologist, business analyst and solutions architect. Our Client Integration Engineers lever

The Company’s three core products are Snapchat, a visual messaging app that enhances your relationships with friends, family, and the world; Lens Studio, an augmented reality platform that powers AR across Snapchat and other services; and its AR glasses, Spectacles. Snap contributes to human progr

Proov’s Web SDK is pushing the boundaries of what is possible with web technologies today. Senior Software Engineer (Web & iPortal). Head of Web & iPortal Development.

As part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serves millions of loyal customers and thousands of colleagues! With ethical values that run right through the company’s core and technology leaders that truly understand softwa

Take ownership of key web projects from a CMS migration, revamp of web platforms and refactoring of existing websites. You will collaborate closely with Product Designers, Product Managers, and fellow Web Engineers to deliver high-quality digital experiences. Contribute to a collaborative web engine

Senior Software Engineer, Web Cross-platform (12-month fixed term contract, renewable or B2B).

This is a fantastic opportunity to develop into a well-rounded UX/UI Engineer - deepening your UX/UI design expertise while building on your technical engineering skills. In this role you will be working closely with the team to create intuitive experiences for our web-based trading and enterprise p

Telicent is hiring a front‑end engineer to help implement our groundbreaking open source data transformation platform and web apps. Strong front‑end coding skills, applied to high quality software products. We're ready for a further front‑end colleague to join us.

They are seeking a highly skilled Senior Software Engineer with a strong background in building scalable, high-quality, and high-performance solutions on the Microsoft technology stack (.Key Duties (Including but not limited to):.Design, develop, test, support and deploy custom web and mobile applic

Web Frontend Engineer - JS, CSS, React, Flutter. Web Frontend Engineer - JS, CSS, React, Flutter. These frontends are constructed using JS, CSS, React, and Flutter, and serve as Canonical's enterprise products that act as the company's face to our users.