1 to 25 of 38 Senior Web Engineer Jobs

Freelance Senior Web Engineer

Location
United Kingdom
have deep expertise and investment in using WordPress as a tool to create large-scale platforms, websites, and applications that drive transformational business value. Senior Web Engineer Responsibilities Take ownership at a project level for not only your own work, but work that interacts or impacts your … delivering to tight deadlines. Excellent communication gained through remote work experiences, and a history of Agile project delivery, are essential. As a Sr Web Engineer, you should have a comprehensive understanding of modern web development, with an emphasis on PHP and JavaScript in a WordPress context. ...

Senior Java Web Engineer

Location
Greater London, England, United Kingdom
Senior Java Web Engineer About the Role Cognizant is seeking a highly technical, hands-on Java Developer to join a dynamic engineering team focused on building and enhancing enterprise-scale applications. The team is responsible for developing innovative, high-performance technology solutions that support complex business processes … deliver exceptional user experiences. This role involves the maintenance and enhancement of existing backend and web-based applications, while also contributing to the evolution of modern digital platforms and web user interfaces. The successful candidate will work in a collaborative Agile environment, partnering with cross-functional teams ...

Remote Senior Web Engineer - Enterprise WordPress Freelance

Location
United Kingdom
leading digital solutions company is seeking a Senior Web Engineer to contribute to various projects. The ideal candidate should possess expert knowledge in WordPress and PHP development, with a strong emphasis on debugging, performance, and security. This fully remote role offers a vibrant online culture ...

Senior Java Web Engineer - Scalable backend & React UI

Location
Greater London, England, United Kingdom
Cognizant is seeking a highly technical, hands-on Senior Java Web Engineer to join an engineering team building enterprise-scale applications. You will maintain and enhance backend services and web interfaces while contributing to modern digital platforms and UI components. In a collaborative Agile environment ...

Senior Java Web Engineer – Trade Platform Backend & UI

Location
Greater London, England, United Kingdom
Virtual Hire Staffing is seeking a Mid/Senior Java Web Engineer for a leading global financial markets infrastructure client in London. The role involves hands-on work across backend services and web UI, delivering a modular end-to-end trade management platform in collaboration with ...

Senior Web Runtime Engineer: High‐Performance WebAssembly

Location
Brighton, England, United Kingdom
Unity is seeking a Senior Software Engineer to join the Web Platform team. You will own meaningful areas of the Web runtime, optimize Web build targets, and work with teams across Unity to deliver fast, reliable browser-based experiences. The role emphasizes solving deep, multi ...

Senior Software Engineer, Web Platform

Location
Brighton, England, United Kingdom
opportunity We are hiring for a Senior Software Engineer to join our Web Platform team here at Unity. Unity's Web platform lets games and real-time 3D content run in a browser, on any internet connected device. Browser capability has moved fast, browser gaming … going through a revival, and the Unity Web runtime is what makes it possible. Our work also supports an exciting new partnership with a major platform, which puts what this team builds in front of audiences at a scale few browser platforms reach. In this role, you will ...

Senior Frontend Engineer (Web & App)

Location
Maidstone, England, United Kingdom
sectors. We've helped ambitious brands grow faster, smarter, and globally. The Role Our Rewards Tech team is growing! We're looking for a Senior Frontend Engineer to join our team in Maidstone. In this role you will own the frontend across our Cashback and Custard apps … with product and backend Build and maintain automated end-to-end tests so staging is stable and releases are predictable Raise the standard of web and app UX across both reward brands Work full stack where it counts, partnering with our backend developers on the Python services behind ...

Senior Software Engineer, Web Development – AI

Location
Manchester, England, United Kingdom
world while gaining meaningful experience across a variety of disciplines. What does the team work on? The Ads Customer Interfaces team develops full-stack web application services, APIs, and UIs that provide a unified approach to interfacing with internal and external customers across Roku's suite of advertising products. … television and streaming media worldwide, continued success stems from experienced software engineers like you developing core features for the Roku platform. Our new Senior Software Engineer will be contributing extensively to our container orchestrated platform, bringing together some of the latest web technologies with Ai expertise ...

Senior Full-Stack Web Engineer: Scala/React, Mobile Migration

Location
City Of London, England, United Kingdom
FlexTrade is seeking a Senior Web Developer to join the FlexONE team and own critical product surfaces across web and mobile apps. You’ll work end-to-end on a Scala + Play backend and a React + AG-Grid frontend, using gRPC for communication with … core product’s backend systems. You will lead the technical direction as we build our Web app from an MVP to a comprehensive companion to the desktop application, as well as continuing the evolution of our Mobile app. #J-18808-Ljbffr ...

Senior Web API & DevEx Engineer — Remote & Flexible Hours

Location
United Kingdom
Runware seeks a Senior Software Engineer to build and evolve the systems and APIs powering its Web App and DevEx. You’ll work with backend, frontend, Product and Design to create reliable internal and developer-facing APIs and functionality that simplify AI infrastructure for users. ...

Senior AI Software Engineer — Scale Cloud Web Apps

Location
Manchester, England, United Kingdom
Roku is seeking a Senior Software Engineer to contribute to its containerized web platform, combining modern web tech with AI to build scalable, reliable cloud-based applications. You’ll work across frontend and backend services, delivering high-impact features used by millions of TV streamers. ...

Senior Web App Support Engineer (React + ASP.NET) – Canary Wharf

Location
City Of London, England, United Kingdom
Adecco is seeking a Web Application Support Engineer for a leading financial institution in London. The role is Canary Wharf-based, three days onsite, with a 416.00 daily umbrella rate, and a contract length up to 2 years for strong candidates. You will provide expert support for web ...

Senior Cloud Web Engineer — SaaS, Angular & Azure

Location
City of Edinburgh, Scotland, United Kingdom
LGBT Great is looking for a skilled developer to join their team in Edinburgh, UK. This role involves designing, developing, and delivering cloud-based web applications as part of an agile team. The ideal candidate will have strong experience with TypeScript, JavaScript, HTML, and CSS, particularly using Angular. ...

Senior Web-Scale Crawling Engineer

Location
Greater London, England, United Kingdom
United States Digital Space LLC is seeking a Senior Software Engineer based in Greater London to develop system for web-scale crawling of content for AI-powered solutions. Candidates should have extensive experience in backend systems and proficiency in Go or C++. The role focuses on building ...

Senior Software Engineer — Lead Scalable AI Web Apps

Location
United Kingdom
IRIS Software Group is hiring a Senior Software Engineer to lead the development of large-scale, full‐stack web applications serving millions of users. You will design, build and refine backend APIs with .NET Core and C#, while shaping frontend architecture using modern UI frameworks and cloud ...

Senior Full-Stack Engineer: Drive Web Product Impact

Location
Greater London, England, United Kingdom
Praktika.ai seeks a Senior Full-Stack Engineer to own every web-facing surface — onboarding flows, landing pages, customer portals, web app and internal tools. This full-cycle role lets you shape product direction, run experiments, ship features end-to-end, and measure impact on conversion, retention ...

Senior Frontend Engineer — Real-Time Web & UX Lead

Location
West of England, England, United Kingdom
Intermedia Intelligent Communications is seeking a Senior Frontend Engineer to lead the development of scalable, real-time web experiences. You will design and implement high-quality components, collaborate with product and UX teams, and drive frontend architecture decisions across channels. You will mentor engineers, champion accessibility ...

Senior Frontend Engineer: Real-Time Web & UX

Location
Greater London, England, United Kingdom
Intermedia, a leading cloud communications company, invites a Senior Frontend Engineer to shape real-time conversations and embedded experiences across our web channels. You will influence frontend architecture and drive scalable patterns from design to production. You will collaborate with Product, UX, ML, and backend teams, mentor ...

Senior Fullstack Engineer: Platform & AI Web Apps

Location
United Kingdom
Kpler, a dynamic data platform provider, seeks a Senior Fullstack Engineer to evolve the frontend platform behind MarineTraffic and Kpler Terminal. You will lead migration to Atlas, unify monorepo architecture, and build platform-level microservices powering maps, search, and dashboards for millions of users. Working with product managers ...

Senior Red Team Engineer – Web Security (Hybrid UK)

Location
City Of London, England, United Kingdom
leading biometric solutions provider in the UK is seeking an experienced Red Team Engineer. This role focuses on web platforms and requires outstanding skills in ethical hacking and penetration testing. The ideal candidate will execute security assessments and collaborate with teams to enhance security measures. This position offers ...

Senior Remote Technical Support Engineer – LAMP/Web

Location
United Kingdom
Feedinkoo is seeking a Senior Technical Support Engineer to join their remote team in the United Kingdom. This role involves providing technical support for web applications on the LAMP stack, troubleshooting customer issues, and coordinating with engineering. The ideal candidate will have extensive experience with Linux systems … web server administration. Strong communication skills and a customer-focused attitude are essential to succeed in this dynamic environment. #J-18808-Ljbffr ...

Senior Frontend Engineer, Marketing Website London

Location
Greater London, England, United Kingdom
Kleiner Perkins, GV, and Evantic Capital, alongside the founders and operators of Stripe, Datadog, Miro, and Webflow. About the role As a Senior Frontend Engineer on our Website team, you'll be a co-owner of the platform behind synthesia.io: the component library, content model and rendering stack … champion its adoption with the people who publish on it. What we're looking for At least five (5) years as a software engineer, including three (3) at senior level, building front end for content-driven or marketing platforms. Real ownership of a content model in Sanity. ...

Senior Full-Stack Engineer — AI-Native, High-Traffic Web

Location
United Kingdom
CoinDesk is seeking a senior software engineer to lead the Media Engineering team. You will own end-to-end features across web, mobile apps, and services using Next.js, React, Node.js, and TypeScript, with a focus on performance, reliability, and security. You will set technical direction, mentor teammates ...

Mid‐Senior Full‐Stack Engineer: Build Scalable Web Apps

Location
Greater London, England, United Kingdom
Insurance is seeking a Full‐stack Engineer to build robust, scalable software for web‐based applications and enhance the Ki platform. You will design, implement and maintain APIs, collaborate with Product and UX, and drive quality through automated tests and code reviews. The role requires mid‐senior level experience across a modern web stack, with JVM backend expertise, React/TypeScript front‐end skills and a strong focus on responsive UI and scalable cloud infrastructure. #J-18808-Ljbffr ...