1 to 25 of 58 Contract Senior Developer Jobs

Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture More ❯

Senior .NET/C# Developer (Oracle to PostgreSQL migration) - Finance - Remote Duration: 6 months Rate: £500 - £600 Start: ASAP My client is looking for a Senior Developer to join the team to help with a migration. They are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture More ❯

Senior Backend Developer - DevOps/AWS - Bolton One day per week onsite Outside IR35 £400-450 A Senior Backend Developer is needed for a client based in Bolton. The client is looking for an individual to assume responsibility for backend development and infrastructure of their in-house ERP/WMS/MRP platform. This position requires More ❯

Senior Backend Developer - DevOps/AWS - Bolton One day per week onsite Outside IR35 £400-450 A Senior Backend Developer is needed for a client based in Bolton. The client is looking for an individual to assume responsibility for backend development and infrastructure of their in-house ERP/WMS/MRP platform. This position requires More ❯

Senior Angular Developer - Shipping/Physical Inventory sought by leading financial services organisation based in West London.**Outside IR35 - 3 days a week on site** SUMMARY This role will suit a full-stack developer, with a broad, yet modern skill set and a proven track record, who ideally has some knowledge and experience of the commodity or … financial trading sectors. Key Responsibilities: Full stack developer with around 8-10 years development experience, working in a agile development team to deliver robust enterprise-wide solutions utilising industry standard practices Design, develop, enhance and maintain applications using agreed coding standards and quality targets. Ensure quality via code reviews and thorough unit testing. Liaise with immediate scrum team, other More ❯

Senior Full Stack REACT/Java Developer Contract. My client a leading global name is in urgent need of a talented and experienced Senior Full stack engineer (REACT Java Springboot). My client is looking for a Developer with strong experience in React, Angular and Java and spring applications. As part of their agile and dynamic More ❯

day Galway - Must be Commutable Must have Stamp 4 or EU Passport Are you a passionate software engineer looking to make a real impact? We’re looking for a Senior Java Developer to join a highly dynamic, inclusive, and collaborative team working on strategic initiatives within a fast-paced environment. About the Role As a Senior Software More ❯

Job Title: Senior Java Developer Day Rate: Via Umbrella Length of Contract: 6 months (huge potential for extension) Location: Bromley Hybrid (3 days onsite) About client: One of the largest financial institutions in the U.S., it serves millions across consumer banking, investment, and wealth management. Headquartered in North Carolina, it plays a pivotal role in global finance. Role … Overview: We are seeking an experienced Senior Java Developer with a strong background in the banking and financial services sector, particularly in corporate and commercial payments/deposits. The ideal candidate will play a key role in designing, developing and supporting robust, scalable applications, working within Agile delivery teams. Responsibilities: * Design, develop and maintain Java-based applications using … Solid understanding of payments systems and regulatory considerations in banking* Strong grasp of software development lifecycle (SDLC) and CI/CD practices* Certifications in cloud platforms (e.g. AWS Certified Developer, Microsoft Azure Developer Associate or equivalent) are a plus* Relevant security certifications or experience working with HSMs and cryptographic standards is advantageous Kindly share your updated CV with More ❯

Senior React Native Developer - Mobile Apps & Web Dublin (Hybrid) or Remote within Ireland12 Month Contract with Potential Extension | Immediate StartPayrate: £495/day PAYE - £657/day UmbrellaWe're hiring a Senior React Native Developer to join a fast-paced, high-impact mobile development project focused on delivering robust, secure, and user-friendly mobile applications and More ❯

Senior React Native Developer - Mobile Apps & Web Dublin (Hybrid) or Remote within Ireland 12 Month Contract with Potential Extension | Immediate Start Payrate: £495/day PAYE - £657/day Umbrella We're hiring a Senior React Native Developer to join a fast-paced, high-impact mobile development project focused on delivering robust, secure, and user-friendly More ❯

Senior Java Developer - Glasgow - Investment Banking - Data/Spring/Linux/SQL/SDLC/Equity Primary responsibilities: The developer will work within an agile squad developing within a system comprising of numerous Java services that interact via messaging to produce the product outputs in Real Time. Technologies and techniques such as highly multi-threaded Java More ❯

Senior .NET/C# Developer Oracle to PostgreSQL Migration: Our client is embarking on a strategic transformation of a legacy enterprise platform, rebuilding a long-standing PHP and Oracle-based system into a .NET (C#) and PostgreSQL architecture. Seeking talented developers who are excited to work at the intersection of legacy systems, modern architecture and cutting-edge development More ❯

Senior Software Engineer - Identity and Access Management As a seasoned Software Engineer, you'll play a key role on a team of innovators and technologists shaping the future of identity and access management (IAM). Your deep technical expertise and passion for design, analytics, development, coding, and testing will contribute to delivering secure, resilient, and high-quality solutions that … and supports long-term career development. With access to global resources and top-tier engineering talent, you'll be empowered to solve challenging problems and make a meaningful impact. Senior Software Engineer - Identity and Access Management As a seasoned Software Engineer, you'll play a key role on a team of innovators and technologists shaping the future of identity More ❯

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products. Initially it will be a five-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being … in large-scale systems and extensive datasets. Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: Demonstrated expertise as a Mid or Senior Software Engineer. Proficiency in Python as your primary language, or willingness to adapt. Hands-on experience with RESTful APIs and/or GraphQL. Proficiency in version control tools like More ❯

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products. Initially it will be a five-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being … in large-scale systems and extensive datasets. * Foster close collaboration with our Product, Data, Front-end, Platform, and Security teams. Knowledge and Skills: * Demonstrated expertise as a Mid or Senior Software Engineer. * Proficiency in Python as your primary language, or willingness to adapt. * Hands-on experience with RESTful APIs and/or GraphQL. * Proficiency in version control tools like More ❯

CK Group are recruiting for a Senior Full Stack Developer, to join a company in the pharmaceutical industry, on a contract basis for 12 months. Salary: £31.49 - £41.99 per hour PAYE. Senior Full Stack Developer Role: Leverage expertise across frontend, backend, databases, and DevOps to optimize systems by writing clean code. Take ownership of end-to … be afraid to dig deep and learn new things all the time. Your Background : Proficiency, expertise and productivity in at least one of Java, NodeJS, ReactJS or React-Native. Developer experience within the pharmaceutical or healthcare industry would be highly desirable. Demonstrable understanding of best practices in software engineering, including testing and continuous integration. Familiarity with Linux environment. Understanding More ❯

equivalent by experience in a relevant subject. Hold relevant Microsoft certifications such as PL-100: Power Platform App Maker, PL-200: Power Platform Functional Consultant, PL-400: Power Platform Developer, PL-600: Power Platform Solution Architect. Proven experience with Microsoft Power Automate Desktop and DevOps. Solid understanding of Microsoft 365, Dataverse, and Azure Services Understanding of application lifecycle management More ❯

Senior C++ Developer Contract - 6 months, start ASAP, annual salary pro-rata Location - remote with travel to Reading area office on day 1 Why - Private Equity Investment + Growth Tech - C++ Qt Do you have 5+ years' experience of C++ development? Do you have working knowledge of Qt? We are working with a growing software vendor who have … equity investment and have exciting plans to grow and product new software. They produce forward thinking financial services software used by thousands of customers in the UK. As a Senior C++ Developer you will utilise your knowledge of programming to help create and maintain their suite of software solutions. You'll contribute to the collaborative development culture with … code reviews and mentoring of others. Senior C++ Developer - Responsibilities Develop new software for the products and services To assist the design, and maintenance of new and existing products Contribute via the team with the delivery of high-level system designs Collaborate across multiple technical teams Perform code reviews for other team members Contribute to an agile team More ❯

Senior/Lead Java Developer £(Apply online only) per day Outside IR35 Fully Remote (Must be UK based) Initially 6 Months (Project scope for 12-24 Months) Start ASAP Unify are proudly, exclusively representing a highly respected digital transformation partner, as they embark on another exciting, high profile program of works. We are looking for 2 Senior … We need: Strong experience in Java Development Experience in Postgres Experience in AWS Experience in Python Experience in HTML Experience in GIS and Ruby would be desirable ***The ideal Senior/Lead Java Developer will have proven experience of working on long term Government, defense or public sector projects, with a team playing, consultative approach, with excellent communications More ❯

Senior Node.js Developer West London (Hybrid - 3 days in office) Senior Node.js Developer required to join a dynamic start-up, backed by the financial strength of a major travel brand. You will play a key role in shaping and expanding our cutting-edge technology stack. As a key player in our tech team, you'll help … and technical feasibility. Troubleshoot and resolve technical issues, including CI development. Mentoring of Junior Developers Identify opportunities to optimize performance and enhance the user experience. We are looking for: Senior Developer with experience in mentoring more junior colleagues. A self-starter with excellent problem-solving and debugging skills. Strong communication and collaboration abilities. Tech Stack You’ll Work More ❯

Senior Power Platform Developer £500/day Inside IR35 | 4-Month Contract | Local Government | South East | 1-2x per month onsite Salt is supporting a progressive Local Government organisation in the South East of England , currently delivering a major digital transformation programme. We're looking for a Senior Power Platform Developer to play a key More ❯

Senior Oracle Developer Oracle to .NET (C#) Migration Project Join a high-impact digital transformation project modernising a long-standing enterprise system. Migrating a complex platform from Oracle and PHP to a .NET (C#) architecture and we're looking for an experienced Oracle Developer to play a key role in this journey. You'll work at the More ❯

and processes when designing resident facing services. Tameside Council is committed to delivering high-quality digital services to our residents. We are looking for a talented, creative and experienced Senior Web Developer to join our development team and help enhance our online presence and service delivery. This is a highly varied role giving the successful candidate the opportunity … all stages of the software development lifecycle. Whilst focused on software development, this role also provides the opportunity to participate in software design at all levels. About You As Senior Web Developer, you will assist the Development Team Manager to ensure the Councils digital ambitions and priorities are delivered. You will be involved in a range of tasks … and resolving complex technical issues. Staying up to date with emerging technologies and industry trends to drive continuous improvement. Applicants should have the following qualities: Extensive experience as a senior web developer or similar role Strong proficiency in asp.net, MSSQL, HTML/HTLM5 Excellent problem-solving skills and attention to detail Good leadership and excellent communication skills Familiarity More ❯

Senior Java Engineer - Azure Migration (Financial Services) Location: London (Hybrid - 1 day per week onsite) Rate: Up to £650/day (Inside IR35) Start Date: ASAP Engagement: Consultancy - Financial Services Clients Overview A leading consultancy is seeking a Senior Java Engineer for a high-impact Azure migration programme within financial services. This role involves lifting and shifting a More ❯

An instantly recognisable London-based financial services institution is actively seeking 2 Senior Java Developers with extensive banking experience to work on a business-critical project in the risk and pricing space. What you'll need to succeed 10+ years' Java Development experience within financial services - mandatory Good knowledge across a range of asset classes, ideally Fixed Income Strong More ❯