1 to 25 of 30 Contract Senior Developer Jobs in London

Senior Developer – FX Options Risk & Valuation Systems We are seeking a highly capable Senior Developer to join our Front Office FX Options Technology team. This role involves hands-on work in building and enhancing systems used by the global FX Options Trading desk for risk, valuation … greenfield-style development within a live system. Inclusive team culture where contributions are valued. Opportunities for technical leadership and ownership. To apply for this Senior Developer position, please submit your CV and cover letter detailing your relevant experience and why you are interested in this role. ...

Senior C++ Developer - London Based in the City of London (2 days in the office)/6 months rolling/£650 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer/Software Engineer … analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system. Essential Duties and Responsibilities for the Senior C++ Developer/Software Engineer: Maintains project estimates and project management timelines for multiple major projects. Verifies completeness and accuracy of specifications ...

Senior Azure Developer - Active SC, Azure Service Bus, D365 Up to £550 per day (Inside IR35) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Developer with Active Security Clearance (SC), and expertise in Azure Service … Dynamics 365, to join a business-critical programme. Key Requirements: Proven experience working as a Senior Developer within the public sector Active Security Clearance (SC) Hands-on experience with Azure Service Bus and message queue systems. Microsoft Dynamics 365 and Power Automate expertise. Strong understanding of integration patterns ...

Senior FullStack Developer Duration: 4 months Location: Remote £450 per day Inside IR35 - Umbrella only Active SC clearance or eligibility to obtain it Our client is seeking an experienced Senior Cloud FullStack Developer to join their dynamic team on a remote basis. This is an exciting ...

Senior Full-Stack Web Application Developer Role: Senior Web Application Developer (Full-Stack) Specialism(s): eCommerce, ASP.NET MVC 5, C#, React, Migrations, Microsites, Cloud-Native, HTML5/CSS3/JavaScript, API, CI/CD, IoC Containers, Agile Type: Contract, Daily Rate Duration: 3+ Months Location: London … Rate: £450 - £525 per day (Inside IR35 - via Umbrella) Start: ASAP/Urgent Senior Web Application Developer (Full-Stack) CPS Group UK are delighted to be working with a leading, globally recognized eCommerce brand to appoint a seasoned Senior Full-Stack Web Application Developer to play ...

Role: Senior Developer Salary: £70,000 Location: Remote with occasional travel to the offices About the role This is an exciting opportunity for a highly motivated and skilled Full Stack Developer to join a dynamic team working on a greenfield project. The primary focus of this role ...

Senior Full Stack Developer (Contract) Outside IR35 | Remote | Up to £600/day Overview We’re partnering with a specialist software consultancy delivering business-critical platforms across financial services and pensions. They’re looking for a Senior Full Stack Developer who enjoys proper engineering — clean architecture … ownership of solutions, and working alongside experienced senior engineers and QA specialists.This is a hands-on delivery role (no line management, no ticket-factory environments) with meaningful technical influence across the full stack. What you’ll be doing Designing and building end-to-end full-stack solutions ...

Senior Software Engineer | Java | AI | London | £500-£600/day About the Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This is a unique opportunity … Senior Software Engineer to work at the cutting edge of AI-driven development. The Opportunity As a Senior Software Engineer, you'll join a small, innovative team modernising and simplifying critical legacy services using cutting-edge AI tooling. You'll demonstrate what's possible when AI is deeply ...

Senior NetSuite Developer £500 - £550 per day (Outside IR35) This freelance opportunity offers the chance to lead complex NetSuite transformation programmes across multi-entity, international environments. You will take ownership of end-to-end solution design and delivery, working closely with senior stakeholders to shape scalable NetSuite … NetSuite solution architecture and delivery across multi-entity and multi-country implementations. Run discovery workshops, requirements gathering, and process mapping with senior business stakeholders. Design and deliver NetSuite configurations, customisations, and workflows across core finance and operational processes. Architect and oversee integrations between NetSuite and third-party systems including ...

Title: Senior KDB+ Developer Location: London, UK (Hybrid) Job Type: Contract - Inside IR35 Role Overview We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high-performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture ...

Title: Senior KDB+ Developer Location: London, UK (Hybrid) Job Type: Contract - Inside IR35 Role Overview We are seeking an experienced Senior KDB+ Developer to design, develop, and optimize high-performance data platforms built on kdb+. The ideal candidate will have deep expertise in kdb+ tick architecture ...

Title: Senior Full Stack Developer (React & C#.NET) Contract Length: 12 Months Location: London - 3 Days a week Daily Rate: Circa £650/Day (Inside IR35) About the Role Join our dynamic team as a Senior Full Stack Developer, where your expertise in React JS and C# ...

Senior Django/Python Developer Pay Rate: up to £700 (Inside IR35 - Umbrella) Duration: 6 months' Working arrangement: Once a every 3 months - London We're working on behalf of aFTSE 100 leading UK retailer, supporting the expansion of a highly successful AI-driven Smart Pricing programme. Following … results across well-known UK household brands, the organisation is now extending this platform across its European operations and is looking for an experienced Senior Django/Python Developer to support the next phase of delivery. This is a pure backend role, focused on scalable, high-quality Python ...

Banking client is seeking to recruit a Senior Full Stack Developer (React & .NET Core) on an initial 6 month based in London. It is hybrid and will require 3x days onsite per week. About the Role We are seeking a highly experienced Senior Full Stack Developer ...

Banking client is seeking to recruit a Senior Full Stack Developer (React & .NET Core) on an initial 6 month based in London. It is hybrid and will require 3x days onsite per week. About the Role We are seeking a highly experienced Senior Full Stack Developer ...

Senior Web Application Developer ASP.NET MVC 5, C#, & React Location: Hybrid 3/4 days p/w onsite West London Must have right to work in the UK and located near West London 3 months contract (extension TBC) Start ASAP (Immediate start/within 2 weeks notice … Inside IR35 contract £425pd - (£538pd rate to umbrella) Equivalent Approx salary Pro rata £(Apply online only)k Seeking a Senior Web Application Developer (ecommerce) with Minimum 8 years of Web application development experience consisting of strong C#, ASP.NET MVC 5, and React. Strong knowledge of Object-Oriented Programming ...

Role : Avaloq Developer Location: Scotland, UK (Remote) Contract Duration : 10 Months Job Description: An Avaloq Developer is responsible for the end-to-end design, implementation, customization, and unit testing of solutions within the Avaloq Banking Suite click apply for full job details ...

Role : Avaloq Developer Location: Scotland, UK (Remote) Contract Duration : 10 Months Job Description: An Avaloq Developer is responsible for the end-to-end design, implementation, customization, and unit testing of solutions within the Avaloq Banking Suite. The role involves delivering high-quality parameterization, scripting, interfaces, and report development ...

currently working with a London-based investment bank who are actively seeking a Senior C++ Developer with extensive financial services experience. What you'll need to succeed : Extensive C++ Development experience in financial services - must-have Strong experience developing and maintaining financial models Good architectural experience Good risk ...

currently working with a London-based investment bank who are actively seeking a Senior C++ Developer with extensive financial services experience. What you'll need to succeed : Extensive C++ Development experience in financial services - must-have Strong experience developing and maintaining financial models Good architectural experience Good risk ...

Senior C#/.NET Developer - Financial Technology (Risk & Financing Platforms) Pay Rate: £600-£650 (Inside IR35 via umbrella) Location: London - 3/4 days per week (with flexibility) Duration: 6 Months (due to be extended) A leading global financial institution is expanding its engineering group and is looking ...

currently working with a London-based financial services client who are actively seeking 3 Senior Java developers to assist in the development and maintenance of a business-critical system in the Equity Derivatives space. What you'll need to succeed : 10+ years' server side Java development experience. Strong commercial ...

currently working with a London-based financial services client who are actively seeking a Senior Fullstack Python Developer to work on the development of a next-generation research platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory scripts Hands-on experience working with ...

currently working with a London-based financial services client who are actively seeking a Senior Fullstack Python Developer to work on the development of a next-generation research platform. What you'll need to succeed : Strong Python software engineering experience beyond exploratory scripts Hands-on experience working with ...

Senior C#/.NET Developer - Financial Technology (Risk & Financing Platforms) Pay Rate: £600-£650 (Inside IR35 via umbrella) Location: London - 3/4 days per week (with flexibility) Duration: 6 Months (due to be extended) A leading global financial institution is expanding its engineering group and is looking ...