api developer jobs in Chelmsford

About Pronetx Pronetx is a cutting-edge consulting firm that specializes in transformative customer experience (CX) solutions powered by AWS. With decades of experience deploying sophisticated CX solutions for industry leaders like Capital One, Social Security Administration, and Hilton, we're known for pushing the boundaries of what's possible in customer experience technology. Job...

About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products — including spending, saving, investing, exchanging, travelling, and more — help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth, 2 things are...

We’re Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we’re looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you’ll do - Develop and extend our React.js &...

React / Next.js Developer – Contract (Outside IR35) 📍 Location: Remote (UK-based preferred) 📅 Contract Length: 2 months 💼 Contract Type: Outside IR35 💰 Rate: £300 per day 🚀 Start: ASAP Overview We’re looking for an experienced React / Next.js Developer to join us on a short-term contract to help deliver and enhance a modern, high-performance web application. You’ll be working closely with...

Web Developer Location: Remote Role Overview Our clients are seeking an experienced Web Developer to build, maintain, and enhance their web-based platforms. The role involves working closely with internal teams and third-party partners to deliver robust, scalable solutions that support MTS’s growing digital and e-commerce footprint. Key Responsibilities - Collaborate with technical and...

Dynamics Developer | Tech Consultancy | SC Clearance Required | Up to £70,000 | Fully Remote MERITUS are working with a leading Tech consultancy looking for a Dynamics 365 / Power Platform Developer to join their Central Government / Defence Division. This opportunity is ideal for a senior-level Dynamics 365 and Power Platform professional who enjoys working on complex enterprise solutions,...

Software Developer (Web & Internal Tools) Remote-first | UK-based up to £50,000 PA Dependent on experience We’re supporting a well established UK adventure business that has recently brought its website development in-house and is now modernising internal systems and tooling. This is a hands on role in a small, trusted tech team, working across a customer facing web platform and the internal...

Department: Support Reports To: Application Software Support Manager Location: Remote Salary: £55k - £60k /yr (depending on experience) Contract Type: Permanent – Full Time Role Summary We're looking for an experienced full-stack .NET developer to join our team in a new and exciting role. This role will initially be supporting an array of clients, helping our support team to continue to...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

Senior JavaScript Developer / front End Engineer (Vue 3) Billericay / WFH to £75k Are you a JavaScript web technologist seeking an opportunity to work with a modern tech stack on Greenfield projects? You could be progressing your career in a senior, hands-on role at an eCommerce payments solutions provider that has experienced great success in the last year and is growing as a result. What's...

About Aero A digital experience company, we sit at the intersection of insights, creativity and technology, crafting digital experiences that transform business performance. We’re a small, fully remote team with big ambitions. We work hands-on with our clients, giving our teams genuine ownership of their work. Every project you touch will be seen by thousands of people and will directly...

Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software solutions. In all...

About Us: We're a forward-thinking technology company building innovative web solutions using modern development practices. Our team values continuous learning, collaboration, and cutting-edge technology to create exceptional digital experiences. Position Summary: We're seeking an enthusiastic Entry-Level JavaScript Developer to join our dynamic team on a contract basis. This is an excellent...

About TriloDocs TriloDocs is a growing company at the intersection of technology and life sciences. We help pharma and healthcare organizations transform scientific data into clear, structured documents. Our team is passionate about creating intuitive, reliable tools that make a real difference. The Role We're looking for a Mid-Level to Senior Python Developer with a strong STEM background —...

THE OPPORTUNITY Inspiring Teachers is an evidence-driven nonprofit working to expand access to quality education. We are building tools for managing large-scale foundational learning programs in Sub-Saharan Africa. Our approach enhances structured pedagogy with technology to enable data-driven teacher support that improves learning outcomes. Today we have programs in Ghana, Uganda and Malawi,...

You will be expected to take ownership, think critically, and deliver high quality solutions to real problems. Essential experience - Strong experience with React and Next.

About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products — including spending, saving, investing, exchanging, travelling, and more — help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth, 2 things are...

We're Cuva Health, a UK healthcare start-up on a mission to make access to treatments simpler, safer, and more convenient. Our digital platform is built with React.js & Nuxt.js, and we're looking for a Full-Stack Developer to help us complete our initial project, deliver new features, optimise performance, and scale our platform as we grow. What you'll do - Develop and extend our React.js &...

You will be responsible for designing, developing and implementing solutions using the MS Integration Services & MS Power Platform suite including but not limited to Logic Apps, Service Bus, Event Grid, APIM, Functions & Function Apps, SQL Server, Azure SQL, Dataverse, D365 modules, 3rd-party APIs, Azure Synapse, Fabric and Key Vault.

About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products — including spending, saving, investing, exchanging, travelling, and more — help our 65+ million customers get more from their money every day. As we continue our lightning-fast growth, 2 things are...