51 to 75 of 333 Senior Developer Jobs in London

Senior Ruby on Rails Engineer £600/day Inside IR35 | 6 Months | Predominantly Remote We are seeking a Senior Ruby on Rails Engineer to join a large-scale content transformation programme. This role goes beyond development, requiring someone who can lead technical discovery, solve complex business challenges … Rails services Contribute to architecture and technical strategy Collaborate with multidisciplinary teams Support delivery within a complex digital environment We're Looking For: Senior Software Engineers, Technical Leads or Lead Ruby Engineers Experience delivering production systems at scale Strong ownership mindset and technical judgement Comfortable working with ambiguity ...

flexible and dedicated. We operate an on-call rota around the clock to ensure our global operations run smoothly Team/Role As a Senior Developer (Front Office), you will: Maintain and improve our peripheral applications, as well as user interfaces, with the latest Rust and .NET technologies … support our 24/7 activities Work in an international team of like-minded professionals in an agile and autonomous environment Collaborate with senior teammates to investigate the latest technologies and industry best practices. When appropriate, design together the required changes and integrate them to expand our system ...

Dynamics 365 Customer Service — Architect/Senior Developer …/Techno-Functional/Consultant — Corporate & Institutional Banking London, United Kingdom | Posted on 08/12/2026 Dynamics 365 Customer Service — Architect/SeniorDeveloper/Techno-Functional/Consultant — Corporate & InstitutionalBanking Build the service platform that a global corporate &institutional bank runs its client servicing on — Dynamics 365 CustomerService ...

keep it reliable at scale while making it faster and easier for engineering teams to build on top of it. As part of the Developer Platform team, you'll focus on: CI/CD and testing: owning and evolving the systems and workflows that help engineers test, validate … deploy code quickly and confidently. Developer experience and productivity: making it faster, simpler and more enjoyable for engineers to build and ship high-quality software. Developer tooling and paved paths: building scalable tools and abstractions that reduce friction and enable teams to work autonomously. AI-native development: using ...

consultancy passionate about building and delivering transformative digital solutions for a diverse range of Public and Private sector clients. We are recruiting for a Senior Python Developerto join our Hippo Herd. We work at the intersection of strategy, design, and technology to solve complex problems and create lasting value. … collaborative and agile culture empowers our teams to make a genuine impact. As a Senior Python Developer, you will play an important role in making Hippo the best Consultancy out there. You will work as part of a multi-disciplinary team combining data, design, product, delivery, analysis ...

Senior Python Developer £675 daily inside IR35 6 months Hybrid working (2 days per week onsite in either London, Bristol or Manchester) *Current SC Clearance is required for this role so ideally live SC or eligible to undergo the vetting process* Experience required: Programming and build: Strong Python ...

Accenture MBG UK is seeking a technically exceptional Microsoft Power Platform Senior Developer at Level 8 (Associate Manager) to join our growing delivery capability in London. You will be the technical authority on Power Platform delivery teams, driving solution quality, architectural integrity, and best practices. You will lead ...

Senior Frontend Developer (React & React Native) Senior Frontend Developer (React & React Native) Are you ready to take your React and React Native skills to the next level? All you need is: 7+ years of experience as a Front-End Engineer; Strong proficiency in React 18+, including ...

## Senior Fullstack Developer — Java or Kotlin, React and TypeScriptApplylocations: London: Manchestertime type: Full timeposted on: Posted Todayjob requisition id: JR100892Founded in Switzerland in 1968, Zühlke is owned by its partners and located across Europe and Asia. We are a global transformation partner, with engineering and innovation … chance to do it on a global scale and play a real role in shaping our exciting journey.**The role**As a Senior Fullstack Developer, you will be a hands-on member of a high-performing engineering squad, building and operating business-critical digital services.This is a backend ...

Senior Salesforce Developer/£70,000-80,000/Remote Im currently working with a fast-growing Salesforce implementation partner who are on the lookout to add an extra pair of technical hands to their remote workforce as soon as possible. You will get the chance to work ...

Senior Salesforce Developer/£70,000-80,000/Remote I'm currently working with a fast-growing Salesforce implementation partner who are on the lookout to add an extra pair of technical hands to their remote workforce as soon as possible. You will get the chance ...

Senior Java Developer (AWS, Microservices) Travel - Sussex Daily rate: £550 - £700 (inside IR35) Duration: 3 - 6 months Hybrid: 1 - 2 days Start: ASAP My new client is looking for a Senior Java Developer (AWS, Microservices) to join the team on a contract basis. You will play ...

Senior Backend PHP Developer £500 per day (12 Months+/Option of working from Remote/Outside IR35) Seasoned PHP developer to work on a new Greenfield backend REST API for the transport industry and help implement it. You will be working alongside a Senior ...

team needs. Don’t let office attendance put you off applying. The expected working pattern will be discussed during the recruitment process. As a senior member of the team, you will work with a group of developers and senior engineers, shaping technical decisions, guiding delivery, and ensuring … Automotive Intelligence Platform, our enterprise-scale SaaS product used by automotive retailers and OEMs worldwide. This role is ideal for a strong, hands-on developer who enjoys building new product features, developing integrations with third-party systems, and working across the full software development lifecycle while supporting high engineering ...

Senior Software Developer/Tech Lead Location: London Borough of Lewisham Directorate: Corporate Resources – IT & Digital Services Grade: PO7 Reporting to: Software Development Manager (PO8) Job Purpose Lewisham Council is looking for an experienced Senior Software Developer/Tech Lead to provide day‐to‐day technical ...

Title: Senior Java Developer - Rates Intraday Risk Technology Job Code: 14911 Country: GB City: London Skill Category: IT\Technology Job Title: Senior Java Developer – Rates Intraday Risk Technology Corporate Title : Associate Department :Information Technology Location: London (Hybrid) Company overview Nomura is a financial services group with … from design through to implementation and rollout. Skills, experience, qualifications and knowledge required Mandatory: Bachelor’s degree in computer science or equivalent Experienced Java developer with good knowledge of Java frameworks (Spring) and an understanding of the stages of the software development lifecycle, version control, unit testing and build ...

Role: Principal/Senior Java Developer – Elite FinTech Rate: Up to £750 per day Location: London Working Pattern: Hybrid Contract: Contract The Role They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering team, working alongside some ...

Senior Power Platform Developer, Global (UK and Europe) Senior Power Platform Developer, Global (UK and Europe) Engagement: Day rate contract. Minimum 5 years. Start: November 2026 Location: Hybrid, at client locations in the UK and Europe, agreed for each assignment. Day rate: GBP 350 a day. … Language: English. We are seeking a Senior Power Platform Developer to build the pro-code parts of Power Platform solutions for financial services clients and set the standard for makers and developers. Key responsibilities Build PCF controls, Dataverse plugins and custom connectors. Build Azure Functions and APIs that ...

foster them,itsdeeply embedded within our DNA. Invest in us andwellinvest in you!. Job Description We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. The ideal candidate will have a strong background in Java development, extensive experience with AWS, database … management, and preferred work experience in batch processing. As a Senior Java Developer, you will play a crucial role in designing, developing, and maintaining high-performance applications that meet our business needs. Key Responsibilities: Design and Development:Design and development of robust, scalable, and efficient Java applications. ...

Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation. We work with ambitious clients to help them solve their biggest business … seamlessly from strategy, design and delivery to operations. This is a Hybrid role working from the London office 2 days a week. As a Senior Develope r at Waracle, you will play a pivotal role in shaping robust, scalable systems while fostering an inclusive environment where everyone can thrive. ...

Senior Backend Developer (Java/Spring Boot/AWS) Rate: £500 - £600 Outside IR35 Location: London - 3 times on site a month Duration: 6 months initial The role: I'm working with a financial services organisation that needs a Senior Backend Developer to build and maintain ...

delivering innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce. Role Overview: We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our back … office system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture. As a Senior Java Developer , you will architect and develop backend systems that power our games, player management, reporting tools, and third-party integrations. You will work closely with Product ...

Senior Full-Stack Developer up to £85,000 London (Hybrid) This is a great opportunity to join a high-growth technology business where you can take ownership of large-scale platform development, influence engineering decisions, and help shape the future of a globally recognised connected technology product. … platform engineering team, you will play a key role in rebuilding and enhancing core services that support customers globally. This is a hands-on senior engineering position where you'll own projects from design through to production while mentoring others and helping drive engineering best practice. Key responsibilities include ...

Role Role : Principal/Senior Java Developer – Elite FinTech Rate: Up to£750 per day Location :London Working Pattern :Hybrid Contract :Contract They are looking for an exceptional Principal/Senior Java Developer to join a high-calibre engineering environment, working alongside some of the industry ...

balance work and life About the Role This is more than just a job, its an opportunity to lead, innovate, and grow. As a Senior Software Developer in Test , youll: Work with our clients to design, build, and implement cutting-edge automation frameworks and testing solutions. Lead … Together Were on the lookout for passionate, talented individuals who are ready to make an impact. Whether youre an experienced automation tester or a developer with a flair for QA, we want to hear from you. ...