1 to 25 of 154 Contract Developer Jobs in London

Java Developer Location: London (Office-Based, 3 Days per Week) Duration: 6 Months Day Rate: £510 Inside IR35 Start Date: ASAP The Role We are seeking an experienced Java Developer to join a leading organisation in London. You will design, develop, and maintain full stack web applications, working across both front-end and back-end technologies to deliver secure, high More ❯

SDET 6 Month contract £425 - £475 per day Outside IR35 London/Hybrid - 2x days a week in London Design and develop automated testing frameworks and strategies with Selenium and Playwright using Javascript/Typescript. Create and maintain test scripts More ❯

Senior Java Engineer Location: London (1-2 days a week in the office, mandatory on Thursdays) Experience: Minimum 8-10 years Technical Skills: Proficiency in Java 8 (transitioning to Java 17) Retail banking experince Python Experience with Spring Boot 2.4 More ❯

Cloud Security Engineer (AWS) - Node.js/NestJS and REST API - Authentication (Auth0, Ping Identity) Contract - 12 months, upto £650/day inside IR35 ***Hybrid - 3 days office Leading financial services client is seeking a Senior Cloud Security Engineer and help More ❯

Software Engineer - AI/ML Leading Pharma Client 6-Month Contract Inside IR35 Hybrid (3 Days Onsite) My client, a global pharmaceutical leader, is looking for an experienced Software Engineer to contribute to the development of cutting-edge AI/ More ❯

Salesforce Developer 12 months Remote Inside IR35 - Umbrella only Job Description: As a Salesforce Developer, you will lead the development of custom solutions on the Salesforce platform. You will be responsible for writing Apex code, creating visual force pages, and implementing integrations. You will have a strong understanding of the Salesforce platform and experience leading successful projects. A Senior Salesforce … Developer will have a deep understanding of the Salesforce platform and the ability to develop complex solutions, mentor and lead the development team, troubleshoot and provide technical support to clients. They will also have a solid understanding of web development concepts and languages and keep up-to-date with new Salesforce features and best practices. Required Skills: Salesforce Developer with … compliant portals, integrating via REST/SOAP APIs, and using declarative tools like Flows and Process Builder. Strong problem-solving and communication skills. Holds key Salesforce certifications including JavaScript Developer I, Platform Developer I & II, and App Builder. All profiles will be reviewed against the required skills and experience. Due to the high number of applications we will only be More ❯

Up to £900 per day (via umbrella) London - Hybrid (2-3 days onsite) 12-Month Initial Contract - Immediate Start Join a front-office Electronic Trading Technology team at a Tier-1 Investment Bank, delivering next-generation algorithmic trading systems across More ❯

Job Description: Work Location: London Required Skills and Qualifications: 1. Minimum 7 + year experience with Infrastructure as Code tools (Terraform, Ansible, etc.). 2. Minimum 3 + year hands-on experience with OpenShift Virtualization and Kubernetes. 3. Proficiency in More ❯

Software Engineer - Leading Pharma Client | 6 Month Contract | Inside IR35 | London (3 Days Onsite) My client, a global pharmaceutical leader, is looking for an experienced Software Engineer to contribute to the development of cutting-edge AI/ML solutions aimed More ❯

Android Tech Lead (VIPER Experience) Location: London, Hybrid - 3 Days per Week Onsite Contract: Initially 3 months, Extension Likely NO SPONSORSHIP We're looking for a seasoned Android Tech Lead with 6 + years of experience who thrives on clean More ❯

An opportunity for an experienced OpenShift Engineer to join a leading technology programme, focusing on the deployment, configuration, and life cycle management of Red Hat OpenShift clusters . The role involves leveraging automation and CI/CD workflows to deliver More ❯

An opportunity for an experienced OpenShift Engineer to join a leading technology programme, focusing on the deployment, configuration, and lifecycle management of Red Hat OpenShift clusters . The role involves leveraging automation and CI/CD workflows to deliver secure More ❯

Microsoft Teams Developer (Azure/API/Developer Experience) || Remote || £Negotiable The Overview: We’re looking for a Microsoft Teams Software Developer with strong Azure and API experience to help one of our clients deliver a next-generation biometric identification platform — integrating seamlessly with Microsoft Teams and Azure API Management . If you thrive on building secure cloud solutions , productising … APIs , and enhancing developer experience , this role will suit you perfectly. What You’ll Be Doing: Designing and implementing Azure-based API infrastructure (App Services, API Management, Key Vault, Storage). Building and maintaining authentication flows via Azure AD (Enterprise Apps & App Registrations). Creating a developer-friendly API portal , complete with onboarding, documentation, and usage examples. Working closely with … Microsoft Azure , including API Management , Azure AD , and App Services . Experience with Microsoft Teams app development or Microsoft 365 integrations . Familiarity with OpenAPI/Swagger , Postman , and developer documentation . Exposure to Infrastructure as Code (Bicep, Terraform, ARM) . Version control and CI/CD using Azure DevOps or GitHub . Bonus: Knowledge of biometric or identity-based More ❯

I am still looking to speak to candidates with 5+ years of experience in catastrophe model development that are skilled in SQL, R, Python, RMS, and a good understanding of building/using API's. This role will be a More ❯

Robert Half Technology are assisting a market-leading financial services organisation to recruit a Quantitative Developer on a contract basis. This role offers a hybrid working model, based in London. Role Design, develop, and maintain quantitative libraries, models, and tools supporting trading, pricing, and risk management. Collaborate with quantitative analysts, data scientists, and traders to implement and optimise models in More ❯

Node JS Developer6 Months contract £350 Inside ir35 Remote - Once every 6 monthsSkills Node js Nice to have AWS Experience needed Public sector Please send over your CV to More ❯

Senior Python Developer** (Contract) Duration: 3 Months (Possibility for extension) Location: Remote (Occasional travel to London as and when required) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are seeking a highly skilled Senior Python Developer with senior-level expertise to join our dynamic team. Your primary focus will be on scaling AI More ❯

Lead on timetabling systems and functionality within a digital technologies team. Initially, you'll support the implementation of a new timetabling system as part of a project team. After implementation, you'll act as the technical lead for timetabling, providing More ❯

Lead on timetabling systems and functionality within a digital technologies team. Initially, you'll support the implementation of a new timetabling system as part of a project team. After implementation, you'll act as the technical lead for timetabling, providing More ❯

Lead on timetabling systems and functionality within a digital technologies team. Initially, you'll support the implementation of a new timetabling system as part of a project team. After implementation, you'll act as the technical lead for timetabling, providing More ❯

Lead on timetabling systems and functionality within a digital technologies team. Initially, you'll support the implementation of a new timetabling system as part of a project team. After implementation, you'll act as the technical lead for timetabling, providing More ❯

A experienced D365 Customer Engagement CE Developer manage a critical project for one of our biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications. The ideal candidate will specialise in designing and developing Dynamics 365 CE solutions that address business challenges and optimise customer relationship management processes. Responsibilities More ❯

OpenLink Endur Developer for leading financial services client in London. Contract and hybrid working. Key Responsibilities Develop, maintain, and enhance custom modules and extensions within Endur and .NET. Build and support interfaces and integrations between Endur and internal systems. Provide technical and functional support to traders, risk managers, and operations teams. Work with business analysts to deliver high-quality technical More ❯

GenAI Python Developer x4 Location: Hybrid/London Contract Rate: £450–£500 per day (Inside IR35, initial 6-9 months) GenAI | Python | Enterprise AI Platform - Build the core of a next-gen Generative AI ecosystem for a global finance services business. If you’re a strong Python engineer who’s genuinely excited by the possibilities of GenAI in real enterprise More ❯

About the Role We are looking for an experienced Senior Java Developer with strong expertise in building modern APIs and microservices, ideally with hands-on experience integrating with NHS Digital platforms such as NHS Spine, FHIR APIs, or other healthcare interoperability services. You will play a key role in designing scalable, secure, high-performance services that power mission-critical applications More ❯