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4 api developer jobs found

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api developer £300 - £400 Greater London
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London  (4) Remote  (1)
Outside Spy
Mar 12, 2026
6 Months or more
SharePoint/Microsoft 365 Application Developer at SR2 - Socially Responsible Recruitment, London, 6 Months, £330-£350 per day
£330 - £350 per day
Outside Spy London, UK
SharePoint/Microsoft 365 Application Developer £330-£350 per day | Outside IR35 | Fully Remote | 6-Month Rolling Contract | April Start We're looking for an experienced SharePoint/Microsoft 365 Developer to support digital transformation projects and deliver modern collaboration solutions across Microsoft 365. You'll design and build solutions across SharePoint Online, Power Platform, and wider Microsoft 365 services , helping organisations improve collaboration, automation, and productivity. What you'll be doing Build and maintain SharePoint Online sites, lists, libraries, and workflows Develop applications using Power Apps and Power Automate Create modern SharePoint components using SPFx Integrate Microsoft 365 services such as Teams, OneDrive, and Azure AD Support SharePoint migrations from Legacy environments Translate business requirements into scalable technical solutions Troubleshoot and improve SharePoint and Microsoft 365...
Outside Spy
Mar 16, 2026
Duration not stated
React Native Developer - REMOTE at Standard 8 Recruitment Ltd, London, £350 to £400 per Day
£350 - £400 per day
Outside Spy Remote (London, UK)
Contract React Native Developer (Outside IR35) Remote | 6–8 Week Initial Project + Ongoing Retainer We’re looking for an experienced React Native Developer to support an established mobile application used across Android and iOS. This is an initial 6–8 week project focused on delivering two key enhancements to an existing production application, with the opportunity for ongoing work (approx. one week per month) for continued development and maintenance. You’ll be joining a mature product environment and working closely with backend engineers and the product team to deliver improvements to a live application. Key Responsibilities Develop and enhance features within an existing React Native mobile application Work across both Android and iOS platforms Collaborate with backend developers to integrate APIs and services Contribute to improvements within a large, production-level codebase Deliver clean, maintainable and...
Outside Spy
Mar 13, 2026
Duration not stated
Senior Python Engineer at Gravitas Recruitment Group Ltd, City of London, £250-£400 per day
£250 - £400 per day
Outside Spy City of London, UK
Overview We are seeking a Senior Python Developer to support a large-scale digital transformation programme. The role focuses on building reliable Back End services, improving system performance, and contributing to a modern, scalable engineering environment. The client is open to strong EU-based talent. Role Detail: Contract Length: 3-6 months Rate: £250-400/day Outside IR35 (Depending on experience) Work Model: Fully Remote Key Skills and Experience Strong commercial experience with Python (Django) Solid understanding of REST APIs , microservices, and Back End architecture. Experience with cloud environments (AWS & Azure). Familiarity with CI/CD pipelines and modern DevOps practices. Strong understanding of relational and/or PostgreSQL. Ability to work in distributed teams and communicate clearly. Experience with Typescript and Svelte Good problem-solving skills and attention to detail. Nice to Have Experience with containerisation (Docker,...
Outside Spy
Mar 09, 2026
up to 6 Months
React Developer at IO Associates, London, 3 Months, £400-£440 per day
£400 - £440 per day
Outside Spy London, UK
React Developer Remote with very occasional client visits £400pd to £440pd (dependent on experience) - Outside IR35 3 - 6 month contract Our client, an established and successful Consultancy are looking for a number of senior and mid-level Developers to join them on a contract basis With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy leader with a dedicated team of professionals, partnering with sector leaders After recently winning a large public sector project they are creating a whole new team and need people who are able to start no later than March 2nd. This is a fully hands on role where you will work as part of an established successful team, primarily working with React and Typescript technologies We are looking for: Expert knowledge of React Strong proficiency in JavaScript (ES6+), HTML5, CSS3, and responsive UI engineering. Experience with Redux or other state management libraries....
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