1 to 25 of 38 Contract Senior Developer Jobs in the UK

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 Mendix Developer Wealth & Asset Management (Outside IR35) Rate: Up to £450/day Contract: 2-month initial (likely extension to 6 months due to a large product backlog) IR35: Outside Location: UK-based (remote/Hybrid depending on client) Overview A wealth management client is seeking … Senior Mendix Developer with strong full-stack capabilities and direct experience working with securities, funds, or broader investment/asset management systems . Broader FS/Wealth Management experience is also fine. Youll be rebuilding an existing funds management and reconciliation system , currently in MS Access , and migrating ...

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 Software Developer (Contract) Location: Warton - Hybrid (3 days per week on site) Rate: £46.80 per hour (Umbrella) Contract Length: 12 months IR35: Inside IR35 Overview A leading UK defence company is seeking an experienced Senior Software Developer to join a highly skilled engineering team working ...

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 Developer (Contract) Location: Warton - Hybrid (1-2 days onsite) Rate: £46.80 per hour (Umbrella) Contract Length: 12 months IR35: Inside IR35 Overview A leading UK defence company is seeking an experienced Senior Software Developer to join a highly skilled engineering team working on mission ...

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 Developer - AIS (Azure Integration Services) - 6-Month Contract - London Role Overview Contracting role based in London (Hybrid, 2 days in office) for a 6-month engagement. You will manage multiple integrations within a cutting-edge SaaS-based ERP ecosystem, onboarding new systems and managing change across ...

Senior .NET/Angular Developer (Contract) - Inside IR35 Guildford (Onsite/Hybrid) | £400 per day | Initial 3 Months We're working with a forward-thinking legal services business, who are looking for a Senior Full Stack Developer to support the transition of their newly launched case ...

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 ...

Senior Front-End Developer Midlands – Flexible Hybrid WorkingUp to £60,000 + benefits12-month FTC We’re currently supporting a business in hiring a Senior Front-End Developer to join their Innovation & Development team. You’ll be working across a range of modern digital products, including … feature development across web and mobile platforms• Support testing, code quality, and front-end best practices• Mentor and support a junior Front End Developer Key Skills Required:• React + TypeScript• Redux• JavaScript• HTML & CSS• Component-based development Desirable:• Jest or automated front-end testing experience• Azure DevOps exposure• React ...

Senior Java Developer (AWS, Java, API) - Sussex - Hybrid Daily rate: £500 - £700 (inside IR35) Duration: 6 months Hybrid: 2 days a week on site (tues, weds) Start: ASAP My client is looking for a Senior Software Developer (AWS/Java) to join the Digital Development & Delivery ...

Senior Software Engineer (Contract) 3-Month Engagement | Outside IR35 | Up to £475 per day | Hybrid (London/Ipswich) A rapidly expanding SaaS company is seeking an experienced Senior Software Engineer to support their agile delivery team on an initial 3-month contract. This position offers a strong ...

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 Student Systems (SITS) Analyst Developer Fixed Term Contract vacancy in a University based in Bedfordshire Salary £48,760 - £58,664, 36 days annual leave plus bank holidays, flexible hybrid working policy, generous 14.5% employer pension contribution and other generous benefits The Opportunity: Hays Technology is working … partnership with a well-established higher education organisation to recruit a Senior Student Systems Analyst Developer on a fixed-term contract basis until July 2027. This is a key role within a central IT function, supporting and enhancing core student information systems used across the full student lifecycle.You ...

Senior UI UX Developer (GCB4) Our client, a leading global supplier for IT services, requires experienced UI UX Developer to be based at their client's office in Sheffield. This is a hybrid role - you can work remotely in the UK and attend the Sheffield office … 6+ month temporary contract to start ASAP Day rate: Competitive Market rate Our client seeking a customer-focused and customer-centric UI/UX Developer to design and deliver intuitive user interfaces that enhance the end-user experience. You will play a key role in shaping the usability ...

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 ...

Title: Senior C#/.NET Developer - Financial Services (Risk/Securities Lending) Location: London (Hybrid) Duration: 6 Months contract Job Description Role Overview We are seeking an experienced C#/.NET Developer to join a technology team supporting critical Financial Services platforms, with a strong focus ...

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 ...