18 of 18 Contract Senior Developer Jobs in London

Senior ServiceNow Developer In this role you will be responsible for building high-quality, maintainable solutions using best-practice patterns. This role will balance speed of delivery with long-term sustainability and will operate with a high degree of autonomy. Key Responsibilities Design and develop solutions across … Rules, Flow Designer) Experience building integrations and working with APIs Solid understanding of CMDB and data structures Proven ability to deliver independently in a senior capacity ServiceNow Certified Application Developer (CAD) - desirable Data foundations - mandatory Key Attributes Delivery-focused and practical Avoids over-engineering Comfortable operating ...

Senior Fullstack Developer l React Native l Typescript l AWS serverless l end to end features l GraphQL l £550 per day l Outside IR35 l three days a week in London l 6 months We're hiring a Senior Fullstack Developer to join a high … Initial 6 month contract Start date: Immediate If you're interested, please apply or send your cv to and I'll be in touch! Senior Fullstack Developer l React Native l Typescript l AWS serverless l end to end features l GraphQL l £550 per day l Outside ...

Senior GenAI Developer Location: London, hybrid 2 to 3 days per weekContract: 6 monthsDay Rate: £500 to £700 per dayIR35: Inside IR35 A leading enterprise organisation is looking for a Senior GenAI Developer to join a customer-focused AI and data science team, helping to design ...

Senior Outsystems Developer, £300-350 per day inside IR35 3 – 6 months rolling, Remote Working Bench IT require a Senior Outsystems Developer to join a large organization ASAP working remotely. The successful candidate will have strong OutSystems experience and the ability to work independently. The successful … Outsystems Developer should have the skills and experience included below; Commercial experience developing applications using OutSystems. Proven ability to deliver solutions independently with minimal oversight. Experience with C#/.NET development. Understanding of API management and API gateway patterns. Experience working with event-driven architectures, including messaging and queue ...

Senior Software Developer** (Contract) Duration: Up until 31 March 2027 (Possibility for extension) Location: London/Hybrid (3 days per week on site) Rate: A highly competitive salary is available for suitable candidates Role Profile This role focus on the development and support of systems responsible for back ...

Title: Senior Full Stack Developer (React & Java script) 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 ...

Senior .NET/Vue 3 Developer - Outside IR35 Pay Rate: up to £475 per day - Outside IR35 Working Arrangement: Hybrid (Central London) - 1-2 days per week Duration: 6-Months initial (Extension Likely) A large growing fintech is looking for an experienced Senior .NET/… Developer to join their team as they scale their mortgage platform, used by major real estate and property firms. Following recent client wins, the business is expanding and investing heavily in its engineering capability, offering a great opportunity to join at a key growth phase The Role ...

Senior .NET/Vue 3 Developer - Outside IR35 Pay Rate: up to £475 per day - Outside IR35 Working Arrangement: Hybrid (Central London) - 1-2 days per week Duration: 6-Months initial (Extension Likely)A large growing fintech is looking for an experienced Senior .NET/… Developer to join their team as they scale their mortgage platform, used by major real estate and property firms.Following recent client wins, the business is expanding and investing heavily in its engineering capability, offering a great opportunity to join at a key growth phase The Role You'll play ...

Contract Role - Senior Java Full Stack Developer – London/Hybrid – 10 months initial – Inside IR35 Role Overview: Job Title: Senior Java Full Stack Developer Location: Hybrid – 3- 4 days onsite per week in London Contract Type: Contract Duration: 10 months initial Rate: £675.11 per day PAYE … across backend services and UI applications CI/CD pipeline design, implementation, and optimisation Build, deployment, and release automation Application and platform integration Improving developer workflow, delivery speed, and deployment reliability Supporting modern engineering practices across development and operational readiness Important note: We are not looking for an automated ...

Senior Python/Django Developer (Contract) £700-£750 per day (Inside IR35) | Remote | 6 months We're supporting a leading UK retailer as they scale an AI-driven pricing platform across Europe, and are looking for a Senior Python/Django Developer to support the next ...

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 ...

Title: Senior Front-End Developer (React/TypeScript/Python/Azure) Role Type: Contract Contract Length: 3 months initial Location: UK based (Onsite once a week in London) Summary Our client is looking for a Senior Front-End Developer to build modern, secure and high ...

Celon is seeking a Senior Microsoft Dynamics Developerto join our growing team on a 12-month contract, with an immediate start and the potential to extend. This is a hands-on role for someone who can work independently, understand business needs, and translate them into practical, well-structured solutions. … sound technical decisions, challenge requirements where needed, and ensure solutions are scalable, maintainable, and fit for purpose. The Role We are looking for a Senior Microsoft Dynamics Developer to take ownership of the design and delivery of Dynamics 365 solutions. This is a hands-on role for someone ...

seeking a senior Moodle PHP developer with strong technical product ownership experience to lead development of a large scale global learning platform. Role Build and extend Moodle via custom plugins and core development Own technical architecture and product delivery decisions Design APIs, integrations and scalable system architecture Improve ...

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

I am currently working with a London-based financial services client who are actively seeking multiple Frontend Developers for a brand-new business-critical project. What you'll need to succeed Extensive React/Typescript ...

client is a London-based financial-services company who are actively seeking a Senior Python Quant Developer to join on an initial 12-month contract basis. What you'll need to succeed : Extensive hands-on Python Development experience building REST APIs with FastAPI or similar. Strong quantitative background ...

Celon is seeking a Senior Microsoft Dynamics Developerto join our growing team on a 12-month contract, with an immediate start and the potential to extend. This is a hands-on role for someone who can work independently, understand business needs, and translate them into practical, well-structured solutions. ...