1 to 25 of 64 Senior Developer Jobs in London

Senior Java Developer with microservices architecture experience is sought on a fully remote basis by a market leading financial services organisation with a technical hubs across the UK. Working at the forefront of AI driven financial technology this Senior java Developer will play an integral role … hosted microservices architecture to deliver robust, highly scalable solutions used by millions daily. With a real commitment to employee wellbeing and personal development this Senior Java Developer can expect long term commitment to remote, flexible working and a clearing defined progression path with 4 promotion opportunities a year ...

Digital Developer Senior Location: London (HQ), Manchester, Birmingham, Cardiff, Darlington Contract Duration: 12 months + IR35 Status: In Scope Pay Rate: £750 per day Security Clearance: SC required Overview An opportunity for an experienced Digital Developer Senior to join a high‐profile public sector subsidiary delivering … sector digital standards and best practices. Key Responsibilities Lead the design and development of full‐stack features using Python and Django Act as a senior technical lead within a multi‐disciplinary squad (Business Analysis, User‐Centred Design, Engineering) Write clean, secure, and maintainable code using test‐driven development principles ...

Senior Developer - Python, .NET, JavaScript/React, Azure - remote - up to £80k Skills/Experience Proven experience as a senior developer, full-stack developer, software engineer or product engineer in a high-growth product, consultancy or customer delivery setting. Expertise in Python, .NET and JavaScript ...

Senior Developer London | £70,000 - £90,000 + Benefits Most developers focus on building the features, this role is for someone who thrives on owning what happens once its live. We're working with a well-established SaaS business whose platform is used by thousands of customers globally. … function, and built a reputation for creating reliable products rather than chasing hype. As their platform continues to scale, they're looking for a Senior Developer who enjoys solving complex technical problems, improving systems, and building software that stands up in production. The Good Bits ...

Senior SharePoint Developer Our prestigious US law firm client is seeking a highly skilled Senior SharePoint Developer with extensive experience migrating SharePoint 2016 on-premise solutions to modern SharePoint platforms. This permanent role, based in their stunning City offices, combines hands-on custom development, system maintenance … Hybrid working (3 days office/2 days remote) Free lunch every Wednesday Generous employee contribution allowance towards lunch or other expenses Senior SharePoint Developer Key Responsibilities: Design, develop, and support custom solutions across SharePoint Subscription Edition (SE) and SharePoint Online Lead migration of SharePoint 2016 on-premise ...

Senior Fullstack Developer l React Native l Typescript l AWS serverless l end to end features l GraphQL l £550 per day l Outside IR35 l three days a week in London l 6 months We're hiring a Senior Fullstack Developer to join a high … Initial 6 month contract Start date: Immediate If you're interested, please apply or send your cv to and I'll be in touch! Senior Fullstack Developer l React Native l Typescript l AWS serverless l end to end features l GraphQL l £550 per day l Outside ...

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Join a collaborative, forward-thinking team that values creativity, experimentation, and impact—and help redefine the future of recruitment through intelligent, human-centered technology. We’re looking for a talented and experienced Senior Fullstack Developer to play a pivotal role in the development and growth of a brand-new AI recruitment platform as it prepares to enter the market this summer. This is a rare opportunity to take a product from Beta launch to full market release and beyond, shaping ...

Senior Fullstack Developer l React Native l Typescript l AWS serverless l end to end features l GraphQL l £550 per day l Outside IR35 l three days a week in London l 6 months We're hiring a Senior Fullstack Developer to join a high ...

Senior GenAI Developer Location: London, hybrid 2 to 3 days per weekContract: 6 monthsDay Rate: £500 to £700 per dayIR35: Inside IR35 A leading enterprise organisation is looking for a Senior GenAI Developer to join a customer-focused AI and data science team, helping to design ...

Senior Quantitative Developer/Research & Data Engineer Research & Data Engineer UNITED KINGDOM Senior Quantitative Developer/Research & Data Engineer - LONDON - UNITED KINGDOM Primary Skills - Python, C++, quantitative, research, market data, simulation frameworks Secondary Skills - distributed systems, cloud computing, execution systems, performance optimization, data pipelines, Linux No. … Research ONLY Relocation Paid - YesRecruit From UK only Salary Details: Annual Salary - £250,000 - £600,000 Other Compensation - Base + Bonus Job Description Quantitative Developer/Senior Research & Data Engineer - Systematic Trading (London) About the Opportunity An established quantitative investment organization managing multi-billion-dollar assets is expanding ...

Senior Outsystems Developer, £300-350 per day inside IR35 3 – 6 months rolling, Remote Working Bench IT require a Senior Outsystems Developer to join a large organization ASAP working remotely. The successful candidate will have strong OutSystems experience and the ability to work independently. The successful … Outsystems Developer should have the skills and experience included below; Commercial experience developing applications using OutSystems. Proven ability to deliver solutions independently with minimal oversight. Experience with C#/.NET development. Understanding of API management and API gateway patterns. Experience working with event-driven architectures, including messaging and queue ...

Senior Software Developer- Must have current SC Clearance. This role is responsible for the design, development, delivery, and ongoing improvement of soft-ware solutions within a secure, government-focused environment. The successful candidate will contribute to building resilient, scalable, and user-centred services, ensuring compliance with regulatory standards ...

Senior SharePoint Developer & Administrator We are partnering with a leading global law firm, known for working with high-profile international clients on complex and business-critical matters. With a strong presence across key financial centres, the firm offers a collaborative, forward-thinking environment where technology plays a central … role in driving innovation and efficiency. They are now seeking an experienced Senior SharePoint Developer & Administrator to join their London team. The Role This is a senior, hands-on position combining SharePoint development, modernisation, and platform administration across both SharePoint Subscription Edition (on-prem) and SharePoint Online. ...

Senior Go Developer - Fintech Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical … Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform ...

Senior Software Developer** (Contract) Duration: Up until 31 March 2027 (Possibility for extension) Location: London/Hybrid (3 days per week on site) Rate: A highly competitive salary is available for suitable candidates Role Profile This role focus on the development and support of systems responsible for back ...

challenging and exciting environment for career development, with a focus on training, growth and fostering an inclusive culture. We are now looking for a Senior Android Developer to join our Apps team. Development of digital products is central to the Guardian. We create our award-winning Android … that. You'll work on major new features, as well as improving and maintaining existing functionality for The Guardian's Android apps. As a Senior Developer you'll take the lead on projects and offer encouragement and guidance to help others to grow. About the role Building ...

Senior Android Developer (Kotlin and Jetpack Compose) Location: London or Manchester (Hybrid - 2 days per week in the office) We're partnering with one of the UK's leading consumer technology businesses, whose digital platforms help millions of people make smarter financial decisions every month. With a portfolio … focus on innovation, they're continuing to invest heavily in their mobile engineering capability. As part of this growth, they're looking for a Senior Android Developer to join a high-performing Mobile Engineering team, helping to shape and deliver exceptional mobile experiences used by millions of customers. ...

Senior Android Developer (Kotlin and Jetpack Compose) Location: London or Manchester (Hybrid - 2 days per week in the office) We're partnering with one of the UK's leading consumer technology businesses, whose digital platforms help millions of people make smarter financial decisions every month. With a portfolio … focus on innovation, they're continuing to invest heavily in their mobile engineering capability. As part of this growth, they're looking for a Senior Android Developer to join a high-performing Mobile Engineering team, helping to shape and deliver exceptional mobile experiences used by millions of customers. ...

Passionate about contributing to a more sustainable world? Bring your passion for sustainability and digital innovation to a meaningful Senior Software Developer role that is instrumental in shaping and advancing the digital infrastructure that supports our engineering and consultancy teams to design services for some of the world … proud to be a partnership, run by the people who work here. ABOUT THE ROLE Based in either our Edinburgh or London office, the Senior Software Developer will play a critical part in advancing the digital capabilities of our engineering and consultancy services. This role will involve software ...

Senior .NET/Vue 3 Developer - Outside IR35 Pay Rate: up to £475 per day - Outside IR35 Working Arrangement: Hybrid (Central London) - 1-2 days per week Duration: 6-Months initial (Extension Likely) A large growing fintech is looking for an experienced Senior .NET/… Developer to join their team as they scale their mortgage platform, used by major real estate and property firms. Following recent client wins, the business is expanding and investing heavily in its engineering capability, offering a great opportunity to join at a key growth phase The Role ...

Senior .NET/Vue 3 Developer - Outside IR35 Pay Rate: up to £475 per day - Outside IR35 Working Arrangement: Hybrid (Central London) - 1-2 days per week Duration: 6-Months initial (Extension Likely)A large growing fintech is looking for an experienced Senior .NET/… Developer to join their team as they scale their mortgage platform, used by major real estate and property firms.Following recent client wins, the business is expanding and investing heavily in its engineering capability, offering a great opportunity to join at a key growth phase The Role You'll play ...

Senior Software Engineer (Python/Java, AWS) London, Manchester or Gloucestershire - primarily on site £60,000-£65,000 per annum basic salary, with some flexibility at the top end for the right candidate £15,000-£20,000 per annum in additional compensation related to clearance and wider benefits ...

Senior Software Engineer (Python/Java, AWS) London, Manchester or Gloucestershire - primarily on site £60,000-£65,000 per annum basic salary, with some flexibility at the top end for the right candidate £15,000-£20,000 per annum in additional compensation related to clearance and wider benefits ...

Leading FinTech trading client are looking for a Senior Python Developer to work on trading and risk management systems. You'll build Back End applications creating high-performance, resilient pipelines, to support risk calculations, trade workflows and reporting. Key responsibilities Build applications for trading and risk management system … skills Salary: Up to £140,000 + bonus + package Location: London (good work from home options available) If you are interested in this Senior Python Developer position and meet the above requirements please apply immediately. ...

Contract Role - Senior Java Full Stack Developer – London/Hybrid – 10 months initial – Inside IR35 Role Overview: Job Title: Senior Java Full Stack Developer Location: Hybrid – 3- 4 days onsite per week in London Contract Type: Contract Duration: 10 months initial Rate: £675.11 per day PAYE … across backend services and UI applications CI/CD pipeline design, implementation, and optimisation Build, deployment, and release automation Application and platform integration Improving developer workflow, delivery speed, and deployment reliability Supporting modern engineering practices across development and operational readiness Important note: We are not looking for an automated ...