frontend web developer jobs in Clerkenwell

Front End Engineer - Consultant/Lead Consultant Permanent | Hybrid | UK Locations A leading IT consultancy is looking to hire an experienced Senior Front End Engineer to work on large-scale digital platforms and user-facing services. You’ll be joining collaborative, agile teams delivering accessible, secure and high-performing web applications. This is a great opportunity to work on meaningful...

About the Company Akkodis is a global leader in engineering, technology, and R&D, harnessing the power of connected data to drive digital transformation and innovation for a smarter, more sustainable future. As part of the Adecco Group, Akkodis combines the expertise of AKKA and Modis, with over 50,000 engineers and digital specialists across 30 countries in North America, EMEA, and APAC. Our...

About the Company EC Markets is an established leader in global financial trading and brokerage, providing innovative FX and CFD services to a diverse client base. With a strong focus on execution quality, risk management, and regulatory compliance, EC Markets operates a high-availability trading environment supported by institutional-grade liquidity and technology. About the Role We are...

Job Title: UI Developer Location: Bromley Working Pattern: Full Time, Hybrid – 3 days in the office Contract Length: 12 months with potential for extending Daily rate: Circa 700 per day via an Umbrella Are you a passionate UI Developer looking to make an impact in the finance industry? Do you thrive on building modern, scalable, and user-friendly web interfaces? If so, we have an exciting...

HCLTech is a global technology company, home to 219,000+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and...

You will push the frontier of AI for an under-explored, massively valuable domain. - Team: We are a small, collaborative, world-class research team based in central London. - Founding level equity + competitive salary: We want you to share in the upside of what we are building.

A fast‑growing deep‑tech company is hiring a Senior Web Engineer to take ownership of a complex, data‑rich product - a platform used by scientists and ML teams to run large‑scale computational workflows. This role sits at the heart of the product. You’ll architect and build the frontend systems that power long‑running jobs, model outputs, logs, workflow orchestration, and highly technical visual...

You will be responsible for maintaining our web platforms, creating engaging digital assets, and ensuring that our user interfaces (UI) provide a seamless experience for our clients and partners.

Location: Marlow (3 days per week in-office) Industry: Retail & shopping centre websites Contract: Part-time / Ongoing Freelance You are a detail-oriented designer, local to the Marlow area, who: - enjoys collaborative studio work - is confident taking projects from wireframes through to polished UI - can design intuitive, user-centred experiences and bring concepts to life through...

You will be working with a handful of tier one clients across a wide range of industries.

x3 Founding FS Engineer (Python, NextJS, TypeScript) (AI/LLMs) Salary up to £120k Equity London - 2/3 days a week Can sponsor candidates already in the UK Opportunity to join a VC backed startup, building the future of LegalTech. With operations based in both the UK&US and partnerships with the biggest Law firms. Working with LLMs to automate workflows and creating agents to handle complex legal...

Senior .NET / React Developer - Global Markets Inside IR35 Contract Role - London - Up to £850 per day About the Role: We are currently seeking an experienced Senior .NET Developer to join a leading global financial institution in London. This is a 6-month contract with strong likelihood of extension, working on critical desktop applications within their Global Markets technology team. Key...

Design Team | Front End Developer | React | Astro | Websites | London London | £140,000 + Benefits I’m hiring a Front-End Developer for a highly respected developer tools company whose software is used inside mission-critical, data-heavy applications. This is a hands-on frontend role embedded within the design team. You’ll work closely with designers to build and maintain websites, implement...

Applications Developer We are on the lookout for a versatile, forward-thinking Applications Developer who excels in developing high-performance web, mobile, and client-server applications, and who takes a proactive approach to technology trends in the legal industry to meet evolving business needs. - Salary to £80,000 - Hybrid working (4 days in the office / 1 day WFH) - 09:30-17:30...

About IXICO plc IXICO plc (AIM: IXI), is a leading neuroimaging Contract Research Organization (CRO), delivering advanced Ai analytical insights in neuroscience to the global clinical trials market. Established in 2004, listed as a public company in 2013, IXICO has firmly established itself as a trusted partner to the global life sciences industry, supporting the development of new therapies for...

.NET Developer, .NET 10.0, C# 14, Agile – Leeds, Yorkshire (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Blazor, JavaScript, React, Microservices, Azure, ASP.NET Core Web API, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We are pleased to announce the arrival in the UK of one of Silicon Valley’s most successful and exciting brands. They’re at the...

You will use the full arsenal of tools and components within Salesforce, including Flows, OmniScript, Apex and LWC. While you will report into your project leads, you can expect some level of client and project stakeholder interaction. Please note, you must either have Full UK Security Clearance (SC) or be able to attain it to be eligible for this role.

You will work across development, operations, and delivery to design, build, and run secure, scalable, and robust environments for web applications and digital experiences.

You will take ownership of the in house front-end implementation across LibertyLondon. Com, the Fabrics site, and supporting digital touchpoints such as email and experimentation platforms.

You will help shape high-quality, performant, and accessible user experiences that reflect Liberty’s brand and drive commercial outcomes.

Working with a leading IT Consultancy who are on the search for a Senior .NET Developer - Paying up to £70,000 + Additional benefits - Remote with occasional client visits - Please note Candidates must be UK based - Candidates must have Security Clearance or be eligible for the clearance to apply for this role As a C#/.NET Full Stack Engineer, you'll play a crucial role in bringing client...