17 api developer jobs found

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...

Job Title: BackEnd Developer Location: Remote Day Rate: £400 per day (Outside ir35) Job Position: Contract We are looking for a strong BackEnd Contractor to help handle production issues. This includes working with the company’s clients and customer success team to identify the source of a technical problem and then fixing those problems. This role covers a lot of technologies, from UI, React, system configuration, Node.js backend code, databases, and AWS hosting. So this is a great opportunity to learn and expand all those skills. The right candidate needs to be able to hit the ground running, a good problem solver, and can prioritise what is important and get it done. Experience needed as a Back End Developer: 5+ years of Node.js development Experience using AI Tools such as Cursor, Claude Code or similar Type Script/React/Strong JavaScript skills REST API development SQL Git

Job Title: Mavenir Techno-Functional Oracle R12 resource Location: Remote Job Type: 3 months- Outside IR35 Role overview Mavenir Techno-Functional Oracle R12 resource Key Responsibilities Assess current state: Review existing bank integrations leveraging Talend/Oracle EBS integration and define reusable patterns for new bank integration. Build & configure: Develop/modify Bank integration jobs and required Oracle EBS R12 configurations to enable banking interfaces. Connectivity validation: Coordinate onboarding and validate connectivity for ~70 Banks accounts (credentials/certs, access, file exchange/tests). Set up in GL & Cash management the appropriate modules for each account based on account activities (AR/AP/IC ). Testing & go-live: Run SIT/UAT support, reconciliation checks, cutover planning, and hypercare. Documentation: Produce design docs, mappings, runbooks, and handover materials. Technical Experience (Required)...

SharePoint / Microsoft 365 Application Developer required by our market leading client in Bristol. This will be a 3 month initial contract, likely to extend and will sit Outside IR35 . We are looking for an experienced SharePoint / Microsoft 365 Application Developer to support ongoing digital transformation projects. This is a hands-on role requiring strong technical expertise, problem-solving skills, and the ability to deliver independently in a fast-paced environment. Key Responsibilities: Design, develop, and maintain SharePoint Online sites, libraries, lists, and workflows. Build custom solutions using Power Apps, Power Automate, and PowerShell. Develop modern SharePoint components using SPFx (SharePoint Framework). Integrate Microsoft 365 services including Teams, OneDrive, Azure AD, and Exchange Online. Migrate content from legacy SharePoint or file systems into SharePoint Online. Create reusable templates, components, and...

This is a fantastic opportinity to work as a AI Python Developer for a major pharmaceutical company on a remote contract, outside IR35.   The key skills required for this AI Python Developer role are:   AI LLM Python AWS   If you do have the relevant skills for this AI Python Developer contract, please do apply.

This is a fantastic opportinity to work as a AI Python Developer for a major pharmaceutical company on a remote contract, outside IR35. The key skills required for this AI Python Developer role are: AI LLM Python AWS If you do have the relevant skills for this AI Python Developer contract, please do apply.

AI Automation Developer - Human Resources Fully Remote Project Contract (Permanent Potential) WealthTech - £350 p/d outside IR35 An opportunity to join a fast-scaling global WealthTech firm as an AI Automation Developer within HR, designing and building AI-driven automation across the entire employee lifecycle. Remote or office-based, project contract initially with strong potential to become permanent. This is a high-impact role focused on AI, automation, machine learning, workflow optimisation, and HR technology transformation within a 600+ person international financial technology business. This role reports to the Head of Talent and Transformation and is responsible for architecting and building intelligent automation solutions across Recruiting, Onboarding, Learning & Development, and HR Operations. You will design workflows from scratch, rapidly prototype solutions, test them with real users, and iterate quickly. The focus is on building practical AI tools that...

JOB DETAILS - £400 PER DAY - OUTSIDE IR35 - 1-2 PER WEEK IN CARDIFF OFFICE - 3-MONTH CONTRACT WITH POTENTIAL FOR EXTENSION - EDUCATIONAL ORGANISATION BASED IN WALES SKILLS - Strong understanding of Moodle Mobile App. - Extensive Back-End development skills. - Knowledge of AI-powered Chatbot development. RESPONSIBILITIES - Improve Mobile App Improvements and Moodle Integration. - Taking a prominent role is Moodle Dashboard development. - Embedding AI Chatbot in Moodle. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and...

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,...

JOB DETAILS - £400 PER DAY - OUTSIDE IR35 - 1-2 PER WEEK IN CARDIFF OFFICE - 3-MONTH CONTRACT WITH POTENTIAL FOR EXTENSION - EDUCATIONAL ORGANISATION BASED IN WALES SKILLS - Strong understanding of Moodle Mobile App. - Extensive Back End development skills. - Knowledge of AI-powered Chatbot development. RESPONSIBILITIES - Improve Mobile App Improvements and Moodle Integration. - Taking a prominent role is Moodle Dashboard development. - Embedding AI Chatbot in Moodle. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the T&C's, Privacy Policy and Disclaimers which can be found on our website.

If you are an experienced JavaScript Developer we have a new position we would like to discuss with you. Please note this role is outside IR35 and requires 5 days per week onsite in Upminster, Essex. You will lead the development and management of a portfolio of websites that support marketing campaigns, client acquisition, and partner integrations. This is a hands-on technical role where you will have significant autonomy to improve and develop our platforms, implement new systems, and shape how our websites operate as the business expands. You will work closely with our marketing team to improve tracking, conversion performance, and campaign delivery across multiple brands and affiliate channels. Essential Skills & Experience Strong experience with CSS3, JavaScript, and React. Experience with Back End development and SQL databases. Experience implementing REST APIs and working with JSON/XML data formats. Experience with Google Analytics and...

Technical Lead - .NET / React (Azure) - Public Sector - Outside IR35 Contract Duration: 12 months Day Rate: Up to £475/day Location: Mostly remote (occasional office visit) Harvey Nash's Public Sector Client have a requirement for an experienced Technical Lead to support the development and evolution of a large-scale Azure-hosted platform built with .NET and React. The system is a business-critical application with a legacy MVC foundation, alongside modern cloud components including Azure Functions, APIs, and modern React frontends. This role requires someone comfortable operating in a brownfield environment, balancing feature delivery with gradual architectural improvement and reduction of technical debt. You will provide technical leadership to a team of 7 developers, while remaining hands-on with development (roughly 60/40 technical leadership vs coding). Key Tech .NET 8 ASP.NET MVC (legacy components) React + TypeScript Azure (App Services, Functions,...

Technical Lead - .NET/React (Azure) - Public Sector - Outside IR35 Contract Duration: 12 months Day Rate: Up to £475/day Location: Mostly remote (occasional office visit) Harvey Nash's Public Sector Client have a requirement for an experienced Technical Lead to support the development and evolution of a large-scale Azure-hosted platform built with .NET and React. The system is a business-critical application with a Legacy MVC foundation, alongside modern cloud components including Azure Functions, APIs, and modern React frontends. This role requires someone comfortable operating in a brownfield environment, balancing feature delivery with gradual architectural improvement and reduction of technical debt. You will provide technical leadership to a team of 7 developers, while remaining hands-on with development (roughly 60/40 technical leadership vs coding). Key Tech .NET 8 ASP.NET MVC (Legacy components) React + TypeScript Azure (App Services, Functions,...

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....

About The Company IO Associates is a reputable and innovative consultancy firm with a strong presence both nationally and internationally. Headquartered in the north of the UK, the company has established itself as a leader in delivering cutting-edge technology solutions across various sectors. With a dedicated team of professionals and a commitment to excellence, IO Associates partners with industry leaders to drive digital transformation and create impactful technological advancements. Their extensive portfolio includes public sector projects, private sector initiatives, and bespoke software solutions, positioning them as a trusted partner in the technology landscape. About The Role We are seeking a highly skilled React Developer to join our client's dynamic team on a contract basis. This role is primarily remote, with occasional client visits required. The successful candidate will be integral to a new project team created following the recent acquisition of a...

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....

Full Stack Engineer - Azure, C#, .Net, React / ReactJS ⭐ Outside IR35 ⭐ 12 Month Contract ⭐ Fully Remote (UK only) ⭐ £400 - 450 Per Day We're currently working with a London based MedTech company who are searching for a Full Stack Engineer who has extensive experience working with Azure, C#, .Net and React / ReactJS. This project will see you working alongside a small existing team of developers, adding additional capacity to make business critical updates and enhancement to their existing Azure based core platform, with the bulk of the work will focus on enhancing the workflow engine! We are looking for an experienced Full Stack Engineer who is comfortable working on complex software platforms and is able to get up to speed quickly in new environments. Required Skills / Experience Extensive commercial experience with: 🔥 Azure - Azure Functions, Azure API Management, Azure Services, Azure B2C Directory, Azure Pipelines etc 🔥 React / ReactJS 🔥 C#...