Contract Web Developer jobs in Greater London

Join to apply for the Senior Web Developer role at CoinMarketCapJoin to apply for the Senior Web Developer role at CoinMarketCapGet AI-powered advice on this job and more exclusive features.POWERING CRYPTO WITH DATA CoinMarketCap is the world’s most trusted and accurate source of data for cryptocurrencies. Used by millions of individuals, organizations, and exchanges, CoinMarketCap brings...

Please note: applications via EasyApply will not be considered. To apply, email your CV & portfolio to careers@tefl.org Department: Technology Reports to: Head of IT / Managing Director Location: Remote (UK-based) Contract: Full-time, Permanent About Us The TEFL Org is the leading provider of accredited TEFL (Teaching English as a Foreign Language) certification courses. With a global...

You will showcase an astute understanding of core programming constructs such as loops, arrays, and functions, as well as advanced object-oriented concepts, including types, classes, and inheritance. Your proficiency with WordPress transcends mere familiarity; a profound grasp of the WordPress Codex is vital, allowing you to navigate and innovate with deft skill within this platform.

You should befortable working with Design System and ideally have experience with other CMS platforms. This role is more technical thanmunicative– we’re looking for someone who thrives in code, not presentation

You will be responsible for designing reusable templates, implementing them within Payload CMS, and creating modular components and widgets that allow our teams to scale content production efficiently. This hybrid role combines design sensibility with hands-on front-end development and CMS integration, ensuring our digital properties are both visually engaging and technically robust.

Our valued client is looking for a Sr. Full Stack Developer [.NET and JavaScript (React JS, JSON, and Node.js)] to support building, maintaining, and scaling web applications A 1 year contract. % remote. Must work EST time zone. 7.5 hour work days. Tasks include: Build, maintain, and scale modern web applications that serve both internal and external clientsThis role bridges front-end and...

We are seeking a talented Senior Frontend Developer to join our dynamic team and contribute to the development of innovative user interfaces for our core products, for example IQVIA's Health Data Research Platform (part of the Connected Health Platform*). Key Responsibilities: Maintain and enhance existing user interfaces for our core productsDesign, develop, test, validate, and debug new user...

Senior Golang Developer - Web/Vulnerability Scraping If you are considering sending an application, make sure to hit the apply button below after reading through the entire description. 3-Month Rolling Contract (up to 2 years) £600-£650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End...

You will have experience of delivery services at scale using JavaScript/HTML, Node. js, Spring Boot, REST APIs and event driven integrations on AWS.

You will execute automation scripts, validate complex data flows, test RESTful APIs, and ensure releases meet reliability and performance standards. Role & Responsibilities - Develop, maintain, and execute automation frameworks for web, API, and data validation testing within wealth management and trading systems

You will work closely with stakeholders to translate business requirements into technical specifications and deliver high-quality implementations that achieve measurable results. Key Responsibilities - Lead client workshops and training sessions to ensure successful adoption of Marketing Cloud.

Job Title: Golang Consultant Or Full Stack Engineer Location: Address: 1-13 St Giles High St, London WC2H 8AG Mode of working: Hybrid (3 Days in the Office) Duration: 6months + contract initially Job description: As a Web Solutions Engineer (WSE) you are responsible for building, designing, and deploying scalable, modern, web applications. You deliver full pieces of functionality on moderately...

Business Analyst / Product Owner - Health Technology Contract 3months + possible perm Location: Hybrid (Canary Wharf & Remote) Reports to: Head of Product / Programme Director About the Role Our Client is building the future of connected healthcare - empowering patients and clinicians through seamless, secure, and intuitive digital experiences. As the Product Owner / Business Analyst,...

Location: London (Hybrid: 3 days a week) Duration: 6 Months, with a strong potential for extension Rate: Circa 400 - 575 per day Inside IR35 We are looking for a highly experienced and passionate Digital Analytics Manager to join the fast-paced environment of a major, world-class financial institution-a key player in global finance-in London. This is a crucial contract role aimed at driving...

Senior Golang Developer - Web/Vulnerability Scraping 3-Month Rolling Contract (up to 2 years) 600- 650 per day - Inside IR35 Hybrid - London 3 days per week & 2 days working from home Our global media and consumer technology client is seeking a Senior Back End Engineer to join their Information Security team for an initial 3-month contract. This role focuses on building and maintaining...

Principal UX Designer – Digital Healthcare Innovation - Contract - Hybrid in London About the Role We’re looking for an experienced Principal UX Designer to shape the future of our digital healthcare products. You’ll lead user experience design across web and mobile platforms, ensuring every interaction is intuitive, compliant, and meaningful. This role is perfect for someone who can balance...

You will be supported by colleagues specialising in content, but should feel confident in crafting compelling, on-brand copy across digital and offline channels, ensuring consistency of tone and messaging. Work collaboratively across the business to deliver.

Job Summary: The Trading and Risk Management System (TRMS) team is responsible for developing, supporting and maintaining our front and back office trading web applications using Python, the proprietary Beacon Dependency Graph and Glint, the Beacon UI framework. The successful candidate will contribute to the growth of the platform, exercising an eye for detail across all aspects of the...

You will identify and exploit vulnerabilities, simulate real-world attacks, and deliver actionable remediation guidance to strengthen defenses. Key Responsibilities: - Plan and execute penetration tests - perform manual and automated testing across applications, APIs, internal/external networks, cloud environments, and Active Directory.

Job title: Special Projects CX Manager Contract Length: Six Months (possibility of extension) Location: London (Hybrid) The Role: Be a part of a revolutionary change. At PMI, we’ve chosen to do something incredible. With huge change, comes huge opportunity. So, wherever you join us, you’ll enjoy the freedom to dream up and deliver, better, brighter solutions in a space that allows you to...