21 of 21 Permanent Front End Development Jobs in the City of London

Senior Front End Engineer/Developer (TypeScript React) London/WFH to £130k Are you a Front End technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global, prime broker that is replacing the legacy … today's complex global markets. The company is experiencing great success in the US and is expanding into the UK. As a Senior Front End Engineer you will take ownership of building the front end UI for a brand new Futures Trading platform ...

Freelance Front End Developer • £350–£400 per day (INSIDE IR35) • London | Hybrid (2–3 days on-site) • Long term contract Our client is a globally recognised, digitally led consumer organisation operating multiple premium brands at scale. Ongoing investment in e-commerce and customer engagement platforms has created … need for additional front-end capability to support delivery across several high-traffic digital environments. This contract opportunity has arisen to bolster capacity during a period of sustained platform development, ensuring customer journeys remain seamless, performant and visually consistent across brands. The Front End ...

building a team that reflects and respects that diversity. We're seeking a UX/UI Designer with strong opinionated design skills paired with front-end development ability to shape how our products look, feel, and work. You'll establish best practices for front-end design across the company and help implement them - building design systems, component libraries, and patterns that scale across our internal platform, customer-facing websites, mobile apps, and new products. Experience Level: Mid-level (2+ years experience in design and development) Location: Primarily remote, with ...

experienced developer who enjoys hands-on development, technical ownership, and contributing to architectural decisions. You'll work across both back-end and front-end technologies, influence best practices, and help shape the future direction of core platforms within a modern, cloud-based environment. … Senior Fullstack Developer with a proactive mindset and a passion for building scalable, well-architected solutions. You'll be confident working across both back-end and front-end technologies and comfortable influencing technical direction. Essential experience: Strong commercial experience with C# and .NET Experience developing solutions within ...

products and services related to AgeChecked frontend, AgeChecked for Ecommerce, AgeAware and other special projects. You will work across the stack, building robust back-end systems in TypeScript, Node.js, and PHP, and delivering high-quality front-end experiences using modern JavaScript frameworks. The role requires expertise … planning. Technical Skills Strong proficiency in TypeScript, JavaScript (ES2020+), and Node.js runtime internals. Experience with PHP 8.1+ (preferably Yii2 or Laravel frameworks). Solid front-end development experience with React, Next.js, Vue, or Svelte. Advanced SQL knowledge with MySQL/Aurora, including schema design ...

Front End Engineer/Developer (TypeScript React Native AI) London/WFH to £80k Want to work on intellectually and technically challenging AI systems at the cutting edge of what is possible, whilst learning and collaborating with an amazing team and enjoying flexible working and a range … other perks? You could be progressing your career as a Front End Developer at a well-established AI company ac click apply for full job details ...

time progresses you will also help their clients to implement and utilise the product to its fullest. Key skills Strong software engineering skills, delivering end-to-end software products. Highly product orientated. Highly skilled in Python development, with knowledge of FastAPI framework. Good databases knowledge … with schema design and SQL. Some front-end development preferably TypeScript & React is highly desirable. Experience of designing scalable systems and working with CI/CD pipelines. Experience in data-driven applications, cyber security, or SaaS platforms is beneficial. This role requires SC clearance preferably ...

hands-on, business-facing role within a fast-paced agile delivery environment , working closely with senior stakeholders, developers and delivery partners. You'll lead end-to-end delivery across web initiatives, running ceremonies and sprints, managing dependencies, and acting as the key bridge between commercial, business and technical … Kanban) and digital development processes. Experience in budget management and financial reporting for digital projects. Familiarity with web technologies (CMS platforms, front-end development, analytics tools). Excellent communication and stakeholder management skills. Ability to balance strategic thinking with hands-on delivery. ...

Java Back-End Developer (Azure/AWS) – Contract | London (Hybrid) Contract: 12+ months IR35: Outside IR35 Location: London (Hybrid – 3 days onsite) We are supporting a consultancy delivering enterprise-scale technology programmes for a major client. They are seeking an experienced Java Back-End Developer with strong cloud … Agile methodologies and the full SDLC Strong analytical and problem-solving skills Proactive, delivery-focused mindset with a positive attitude ⭐ Desirable (Nice to Have) Front-end development experience with React Familiarity with financial markets, instruments, or trade lifecycle Ability to write and optimise SQL Experience ...

comfortable having business logic type discussions You have strong Java, AWS and Kubernetes skills and also have a good appreciation of user interface/front end development using React or Tailwind CSS You have a strong knowledge of modern software engineering best practices including cloud ...

seed to early-growth mandatory). Experience working with regulated or sensitive data (healthcare, government, legal tech, defence, etc.). Understanding of secure development, data governance, and compliance-aligned engineering. Eligibility for Security Check (SC) Clearance. … Nice to Have: UI automation experience for integrating with legacy or non-API-native systems. Knowledge of workflow engines, orchestration tools, or ETL pipelines. Front-end development exposure (React, TypeScript, or similar). Experience building AI-driven, data-intensive, or workflow-heavy platforms. Offer & Environment ...

solving meaningful problems that impact thousands of employees. This is a hands-on, delivery-focused role for someone who enjoys building secure, scalable back-end systems and thrives in a high-trust, collaborative environment. WHAT YOU WILL DO Develop and maintain back-end services, APIs, and integrations … code that performs at scale Contribute to the design and evolution of Connect’s architecture, working closely with architects and senior engineers Collaborate with front-end developers, QA, and product teams to deliver end-to-end features Build with performance, security, and maintainability in mind – always ...

Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel ...

Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel ...

Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel ...

different types of architectures and understanding of the tradeoffs between them. In this role, you'll be a senior contributor to the development and operation of our cutting-edge cloud-based platform. You should have a passion for both science and engineering, a proven ability to deliver … tools (e.g., NumPy, pandas, scikit-learn, PyTorch) and open-source contributions (especially Python-based) would be a bonus. Familiarity with CUDA, GPU-based computations, end-to-end neural network training, MLOps, and academic research in machine learning are also beneficial. Experience configuring and maintaining cloud infrastructure including network ...

gRPC, and Protocol Buffers Working on scalable and distributed systems using Kubernetes Debugging, optimising, and improving systems for full-scale production environments Collaborating with front-end developers to integrate user-facing features Creating technical guides, tutorials, and documentation for teams and customers Supporting new customer onboarding and ensuring ...

across teams through mentoring, architectural guidance, and shared practices. You’ll also help teams adopt new tools and approaches responsibly, including AI-assisted development tooling. Success in the role is measured by improved delivery consistency, reduced complexity, stronger system reliability, and higher engineering confidence across teams. Responsibilities … knowledge. Qualifications Strong experience with modern frontend development (JavaScript, TypeScript, component-based frameworks). Solid testing discipline across unit, integration, and end-to-end testing. Experience designing and building backend services using RESTful APIs. Proven ability to simplify systems and influence technical direction across teams. ...

Location: London, Hybrid (3 office days a week) Role purpose As a valued member of our engineering team, you will contribute to the development of our new web application, powered by a Headless CMS, using the latest frontend technologies. Working with a modern JavaScript stack, your primary … primarily an engineering role, we are always looking for developers who have a keen eye for product and who can contribute to the development of features at a product level before they are implemented. If you are eager to be part of a dynamic team, contribute ...

Competitive salary, to £100k + Significant Equity Hybrid working (3 days London office per week) Vitality Healthcare Continuous career development and learning opportunities Influential role as part of a small, close knit team Complex and interesting work Your role: As a Senior Full Stack Engineer you will … take ownership, working on technically challenging Greenfield development projects. You'll be working on complex problems with scalability and reliability in mind, across the full development lifecycle from architecture and design through to implementation. There's a range of technology in the stack ...

tapping into our uniquely rich dataset of real-world material scans. Our goal is to remove the need for manual texturing and enable full end-to-end automation, from photos to PBR assets at high fidelity and scale. You’ll be helping bring this technology to market. … Implement CI/CD for application deployment (Bitbucket Pipelines) Create API documentation and developer tools What we are looking for 5+ years backend development experience with production applications Track record with at least one live application currently serving users in production Proven experience designing and implementing RESTful ...