201 to 225 of 300 Senior Developer Jobs in the UK

connect and understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments. Senior Full Stack Developer Location: Bristol Grade: GG11 Referral Bonus: £5000 As a key member of a Software Engineering team, you’ll be working … scalability, and security Participate in code reviews when needed Stay current with emerging technologies and tools Required Experience Proven experience as a full stack developer Strong proficiency in using JavaScript/TypeScript, NodeJS and ReactJS Solid back-end development skills using Node.js and frameworks Experience of leading a team ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Senior Siebel Developer Position Description CGI's Space, Defence and Intelligence business unit delivers complex, mission-critical systems that help keep the UK safe … clearance. This is a hybrid position with travel to our Leatherhead office. Your future duties and responsibilities We are looking for an experienced Siebel Developer to join a growing team supporting a highly customised, business-critical solution for a major Defence client. This is a hands-on technical role ...

Contract Role – Senior FX e-Trading Java Developer – London/Hybrid – 12 months initial – Inside IR35 PAYE Role Overview: Job Title: Senior FX e-Trading Java Developer Location: Hybrid – 4 days onsite per week in London Contract Type: Contract Duration: 12 months initial Rate … desktop container experiences to low-latency backend services. Lean into the latest AI coding tools to accelerate delivery, strengthen code quality, and enhance developer experience. What you’ll do Architect and implement scalable, event-driven, and microservices-based backend components, including APIs, market data, order/risk workflows ...

Location London, Hybrid Role Type 12 Month Contract Rate £700 - £800 per day Delta Capita is seeking a highly skilled Senior eTrading Developer to join our clients Global Markets Technology practice. This role will focus on developing and enhancing low‐latency components within an electronic trading (eTrading ...

Senior Full-Stack Developer/Technical Lead — National Addressing & GIS Platform (D.A.S) Location: Djibouti (on-site, hybrid, or remote with strong EAT/GMT+3 overlap) Type: Full-time or long-term contract Project: Djibouti Address System (D.A.S) — national digital addressing, mapping & postal logistics platform Reports to: Project owner … serious MVP and expanding from there, and we want a technical leader who can own the architecture from day one. The role As Senior Full-Stack Developer/Technical Lead, you will architect the platform, set the technical direction, and lead delivery of the MVP. You will personally ...

Hopeghospital in Greater London is seeking a Senior Java Developer to design and maintain high-quality Java applications. The role involves collaborating with cross-functional teams to deliver scalable solutions, optimizing performance, and mentoring junior developers. Candidates must have strong proficiency in Java, Spring, Hibernate, and experience with ...

Title: Senior Front-End Developer (React/TypeScript/Python/Azure) Role Type: Contract Contract Length: 3 months initial Location: UK based (Onsite once a week in London) Summary Our client is looking for a Senior Front-End Developer to build modern, secure and high ...

building a sophisticated CRM and Asset Management platform from the ground up, and we need a Senior .NET Developer to take total ownership of the backend. You’ll be one of two developers in a tight knit team, working alongside a Front-end specialist. This isn't just … LLMs). Security: Implementing robust authentication via JWT, OAuth 2.0, and ASP.NET Core Identity. Other Requirements: Autonomy: You are comfortable being the sole backend developer, making architectural decisions. Problem Solver: You know when to use a relational schema and when to lean on NoSQL for speed and flexibility. Collaborator ...

impact for a smarter, sustainable future. Want to know more about the company? Take a look here: MITSUBISHI ELECTRIC UNITED KINGDOM Role summary: A Senior UI Developer responsible for designing, building, and evolving scalable, high-quality user interfaces across web and mobile platforms. They lead front-end architecture ...

HTML5 Games Developer - Pixi.JS £60,000-£75,000 Oxford – Flexible/Remote Harvey Nash have partnered with a global business well established within the online gaming/gambling industry who have ambitious growth plans. The company have a wide array of clients ranging from independent gaming studios … world’s largest online casinos delivered into by teams across UK, Canada, South Africa, and China. The successful Frontend HTML5 Developer will be a key player in producing 3 games a month! The main requirements of the role is to have excellent experience on well-structured frontend architecture. ...

Location: London, Hybrid Role Type: 12 Month Contract Rate: £700 - £800 per day Delta Capita is seeking a highly skilled Senior eTrading Developer to join our clients Global Markets Technology practice. This role will focus on developing and enhancing low‐latency components within an electronic trading (eTrading ...

Senior Software Engineer (C# .NET) | FinTech | Newcastle (Onsite) | Up to £150K depending on experience. If you’re a strong C# engineer stuck in large, slow-moving environments or London burnout you’ll likely find this a very different proposition We’re working with a rapidly scaling FinTech startup building ...

established client is looking for a Senior Oracle Developer to join their growing team. The successful candidate will need to have approximately 10 years plus of solid Oracle PL/SQL development skills gained within large scale information systems environments with a good understanding of configuration management. Financial ...

myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Position Overview You will play, as a Senior ServiceNow Developer, a vital role in configuring and customising the ServiceNow platform for ITSM, ITAM, ITOM, GRC modules within ServiceNow. You will develop ...

Senior iOS Engineer (Contract) | 2-Day Hybrid | £425PD (Outside) I am looking for a Senior iOS Engineer to join a team on a contract basis to help develop and enhance high-traffic, customer-facing iOS applications. The ideal candidate will be passionate about building high-quality mobile experiences ...

Senior Backend Engineer (Go/Java) - Exciting NEW Exclusive OchoX FDI - Remote first company Salary circa £100k+ bonus + benefits Please note candidates should reside in Northern Ireland to be eligible to apply. About the Company: Our client is a fast-growing SaaS organisation. Their AI powered technology helps … high-impact environment for backend engineers who want to shape the cloud-native systems behind a category-defining product. The Role: This is a Senior Backend Engineer position ideal for experienced engineers who enjoy building high-performance, cloud-native systems at enterprise scale. You'll take ownership of core ...

reach and stability of a global financial services business. To learn more, visit Payments.corpay.com/cross-border. Role Overview: We are looking for a Senior Full Stack Software Developer to help evolve the platforms that power Corpay Cross-Borders international payments and foreign exchange capabilities. This ...

understand complex data, so that governments, nation states, armed forces and commercial businesses can unlock digital advantage in the most demanding environments. Job Title: Senior C++ Developer Location: Manchester (Onsite working) Who we are Join BAE Systems and you’ll be part of something bigger. As a valued … Role Description Are you passionate about working with cutting edge technology, and self-motivated to deliver exciting new capabilities? Are you an experienced C++ developer who likes a challenge and is keen to keep your skills current and even cross train into new technologies? As an experienced C++ Developer ...

TradingHub combines global reach with deep markets expertise to help our customers mitigate financial, regulatory, and reputational risk. The Role We are seeking a Senior Quantitative Developer (VP) to take a leading role in designing, building and validating our pricing models. This includes creating financial pricing libraries ...

Celon is seeking a Senior Microsoft Dynamics Developerto join our growing team on a 12-month contract, with an immediate start and the potential to extend. This is a hands-on role for someone who can work independently, understand business needs, and translate them into practical, well-structured solutions. … sound technical decisions, challenge requirements where needed, and ensure solutions are scalable, maintainable, and fit for purpose. The Role We are looking for a Senior Microsoft Dynamics Developer to take ownership of the design and delivery of Dynamics 365 solutions. This is a hands-on role for someone ...

Celon is seeking a Senior Microsoft Dynamics Developerto join our growing team on a 12-month contract, with an immediate start and the potential to extend. This is a hands-on role for someone who can work independently, understand business needs, and translate them into practical, well-structured solutions. … sound technical decisions, challenge requirements where needed, and ensure solutions are scalable, maintainable, and fit for purpose. The Role We are looking for a Senior Microsoft Dynamics Developer to take ownership of the design and delivery of Dynamics 365 solutions. This is a hands-on role for someone ...

technology-led business based in Slough, that is undergoing a major systems transformation. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large-scale legacy platform and supporting its transition from ...

looking for an experienced Senior .NET Full Stack Developer to join a high-performing development team working on scalable, high-traffic digital products. You will have a Mobile-First development mentality and be comfortable with tools such as Elastic Search, Rollbar, Jira etc as well as having ...

technology-led business based in Slough, that is undergoing a major systems transformation. As part of this programme, they are looking to hire a Senior .NET/C# Developer to play a key role in evolving a large-scale legacy platform and supporting its transition from ...

innovation, learning and development. We're looking to eradicate Sunday Blues from our team’s vocabulary. The Role We’re seeking a skilled Senior Front-End Developer (CRO) with at least 2 years of relevant experience to join our Experimentation team and help us deliver best-in-class … website testing services for our clients. As a Senior Front-End Developer (CRO), your primary responsibility will be to take ownership of bringing “variation experiences” to life for our clients. Working closely with analysts, strategists, and designers, you’ll build high-quality test variations that help solve user ...