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19 full stack developer jobs found

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full stack developer
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Outside Spy
Sep 03, 2026
Duration not stated
Full Stack Developer at Robert Half Limited, Multiple Locations, £Contract Rate
Outside Spy United Kingdom
Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. This is a hybrid role based in Central London, requiring three days per week in the office. The successful candidate will play a key role in delivering a business-critical application, working with modern technologies including Azure, React, Node.js and SQL while collaborating closely with both technical teams and business stakeholders. Key Responsibilities: Lead the development of an established Corporate Governance platform from prototype through to production. Design, develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive front-end applications using React and TypeScript. Build and maintain back-end services using Node.js. Deploy and support applications...
Outside Spy
Sep 03, 2026
Duration not stated
Full Stack Developer at Robert Half, London, £400-£500 per day
£400 - £500 per day
Outside Spy London, UK
Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. This is a hybrid role based in Central London, requiring three days per week in the office. The successful candidate will play a key role in delivering a business-critical application, working with modern technologies including Azure, React, Node.js and SQL while collaborating closely with both technical teams and business stakeholders. Key Responsibilities: Lead the development of an established Corporate Governance platform from prototype through to production. Design, develop and maintain scalable full-stack applications using Azure, React, Node.js and TypeScript. Build, optimise and maintain SQL Server and Azure SQL databases, ensuring performance, security and data integrity. Develop responsive Front End applications using React and TypeScript. Build and maintain Back End services using Node.js. Deploy and support applications...
Outside Spy
Sep 02, 2026
up to 6 Months
Full Stack Developer (React/C# .NET) at TXP, Birmingham, 3 Months, £500 per day
£500 per day
Outside Spy Birmingham, UK
Senior Full Stack Developer (React/C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) IR35 Status: Outside IR35 Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day Outside IR35 Overview We are seeking experienced Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both Front End and Back End technologies while contributing to data migration, integration, and technical design activities. The successful candidates will be strong engineers with deep expertise in React and C#/.NET , capable of operating across the full technology stack and collaborating closely with Product Owners, Business Analysts, Architects, and Testing teams...
Outside Spy
Sep 02, 2026
Duration not stated
Full Stack Developer (React / C# .NET) at TXP, Birmingham, £Contract Rate
Outside Spy Birmingham, UK
Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) IR35 Status: Outside IR35 Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day Outside IR35 Overview We are seeking experienced Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design activities. The successful candidates will be strong engineers with deep expertise in React and C#/.NET , capable of operating across the full technology stack and collaborating closely with Product Owners, Business Analysts, Architects, and Testing teams...
Outside Spy
Sep 02, 2026
Duration not stated
Full Stack Developer (React / C# .NET) at TXP, Birmingham, £Contract Rate
Outside Spy Birmingham, UK
Senior Full Stack Developer (React / C# .NET) Contract: Initial 3-Month Engagement (Long-Term Programme) IR35 Status: Outside IR35 Location: Hybrid Working - Approximately 1 day per week in Birmingham (flexible based on project requirements) Rate: £500 per day Outside IR35 Overview We are seeking experienced Senior Full Stack Developers to join a major business transformation programme focused on modernising platforms, data capabilities, and core business processes. This is an opportunity to play a key role in the design, development, and delivery of enterprise-scale solutions, working across both front-end and back-end technologies while contributing to data migration, integration, and technical design activities. The successful candidates will be strong engineers with deep expertise in React and C#/.NET, capable of operating across the full technology stack and collaborating closely with Product Owners, Business Analysts, Architects, and Testing teams within an Agile...
Outside Spy
Aug 28, 2026
6 Months or more
Full Stack Developer PHP/MSSQL at ReactiveCreative Ltd, London, 3 Months, £400-£500 per day
£400 - £500 per day
Outside Spy London, UK
We are looking for a talented UK based PHP/JS/AJAX/MSSQL FullStack Developer to join our small innovative and highly experienced project team. You will have a minimum of 5 years recent commercial experience, with solid technical skills ideally in these core areas: - Excellent PHP with recent experience working on Legacy projects on latest PHP versions, but mostly built on proprietary and bespoke frameworks. - Excellent Javascript/AJAX/JQuery/Vanilla JS/HTML/CSS Experience. - Experience with KendoUI components also useful - MS SQL Database experience, working heavily with MSSQL stored procedures especially. - candidates with cross over knowledge in C# and .NET/MS SQL would also be considered. 3 to 6 month contract - Full or Part time Mostly Remote - outside IR35 Part time applicants who can offer us 3 days a week or alternatively need to work only short days 5 days a week would also be considered.
Outside Spy
Aug 24, 2026
Duration not stated
Full Stack Developer at Langham Recruitment, Birmingham, £500 to £550 per Day
£500 - £550 per day
Outside Spy Birmingham, UK
Full Stack Developer (Node.js) | 3 month contract | up to £550 per day outside IR35 | Remote   We're seeking an experienced Full Stack Developer to join a major digital transformation programme focused on the delivery and launch of a large-scale customer-facing website.   This is an opportunity to work within a collaborative team environment on a business-critical platform, supporting the final stages of delivery, go-live activities, and post-launch enhancements.   The successful candidate will have strong Node.js and Next.js experience, combined with a proven track record delivering customer-facing web solutions using Headless CMS architecture in live production environments.   Key Responsibilities Develop and maintain scalable web applications using Next.js and Node.js. Design, build and enhance backend services, APIs and integrations. Support the delivery and launch of a large-scale customer-facing website. Collaborate with technical and non-technical stakeholders across the...
Outside Spy
Aug 25, 2026
Duration not stated
Senior Full Stack .NET Developer - Contract - Brighton/Hybrid at ARC IT Recruitment, Brighton, £Contract Rate
Outside Spy Brighton, East Sussex, UK
Senior Full Stack .NET Developer - Contract - Brighton/Hybrid We're currently working with an important tech driven client based in Brighton who are looking to bring in a Senior Full Stack .NET Developer on an initial 6-month contract, with strong potential for extension. This is an opportunity for a senior-level contractor who is comfortable working autonomously and taking ownership of a fairly isolated live project. The system is already in production and performing well overall, however there are ongoing Legacy data quality issues which require investigation, fixes, and long-tail support. The original development team are moving onto another project, so they're looking for someone who can step in quickly, understand the platform, and manage the ongoing enhancements and data remediation work. Key Skills Required Strong commercial experience with C#/.NET Core Current solution built in .NET 8 (moving to .NET 10) Strong SQL skills, including data analysis and...
Outside Spy
Aug 25, 2026
Duration not stated
Senior Full Stack .NET Developer - Contract - Brighton / Hybrid at Arc IT Recruitment, Brighton, £Negotiable Rate
Outside Spy Brighton, Brighton and Hove, UK
Senior Full Stack .NET Developer - Contract - Brighton/Hybrid We 're currently working with an important tech driven client based in Brighton who are looking to bring in a Senior Full Stack .NET Developer on an initial 6-month contract, with strong potential for extension. This is an opportunity for a senior-level contractor who is comfortable working autonomously and taking ownership of a fairly isolated live project. The system is already in production and performing well overall, however there are ongoing Legacy data quality issues which require investigation, fixes, and long-tail support. The original development team are moving onto another project, so they 're looking for someone who can step in quickly, understand the platform, and manage the ongoing enhancements and data remediation work. Key Skills Required Strong commercial experience with C#/.NET Core Current solution built in .NET 8 (moving to .NET 10) Strong SQL skills, including data...
Outside Spy
Sep 02, 2026
up to 6 Months
Full Stack AI Data Engineer - Fully Remote - Contract - Outside IR35 at Strike IT Services, Fully Remote, 3 Months, £400-£450 per day
£400 - £450 per day
Outside Spy Remote (Fully Remote , UK)
Full Stack AI Data Engineer Python | Snowflake | GenAI | FastAPI | AWS Fully Remote | Outside IR35 3-month contract initially Build production AI applications from the ground up. We're looking for an experienced Full Stack AI Data Engineer to join a growing AI consultancy delivering cutting-edge enterprise AI solutions for global organisations. This isn't a traditional Data Engineering role. It isn't a Full Stack Developer position. It isn't purely an AI Engineering role. We're looking for someone who combines all three. You'll design modern data platforms, build scalable APIs, integrate Large Language Models and deliver production-grade AI applications that solve real business problems. If you've built AI applications end-to-end-not just experimented with ChatGPT APIs-we'd love to hear from you. What you'll be doing You'll play a key role in designing, building and deploying enterprise AI solutions, taking ownership from architecture through to...
Outside Spy
Sep 01, 2026
6 Months or more
Senior Node/Typescript Developer £500 per day | Outside IR35 | 6 months | Leeds (2 day per week) at RecOps, Leeds, 3 Months, £500 per day
£500 per day
Outside Spy Leeds, UK
Senior Node/Typescript Developer £500 per day | Outside IR35 | 6 months | Leeds (2 day per week) RecOps is partnered with a client looking for an experienced Senior Full Stack Developer to join an exciting project on an initial 3-month contract. This is an Outside IR35 engagement paying up to £500 per day, with just one day per week onsite in Leeds. Key skills required: Node TypeScript AWS Modern software development practices (CI/CD, testing, code reviews, Agile) Desirable: Public sector experience Strong stakeholder management and communication skills If you're an experienced contractor available, please apply now for immediate consideration.
Outside Spy
Sep 03, 2026
Duration not stated
Power Platform Developer at Experis UK, Remote/London Area, £400 per day
£400 per day
Outside Spy Remote (London, UK)
Power Platform Developer | Contract | Outside IR35 | Fully Remote | £400/day Build the system that replaces the tools everyone's stopped trusting. A fast-growing SaaS/Fintech scale-up — backed by the likes of Google and ARM — is retiring a de-adopted vendor CLM and two legacy tools in favour of an internally built Contract Lifecycle Management system, running natively on their existing Microsoft 365 estate. The spec is written. The scope is real. This isn't a discovery project — it's a build. The Build 8 MS Dataverse tables with a defined state machine A model-driven app for Legal and Contracts Operations Power Automate flows across generation, capture, approvals and filing Teams approval cards DocuSign eSignature integration Salesforce launch/write-back A Power BI reporting pack What They Need From You Someone who can own delivery end-to-end against a written spec — flagging design improvements...
Outside Spy
Sep 01, 2026
6 Months or more
Forward Deployed Engineers at Lynx Recruitment Ltd, Hampshire, 6 Months, £320 per day
£320 per day
Outside Spy Hampshire, UK
Forward Deployed Engineer - 6-Month Contract Location: Hybrid - Hampshire/Fully Remote Contract: 6 months IR35: Outside IR35 Rate: £320 per day Start: ASAP/September 2026 Duration: 6 months The Opportunity We're looking for two Forward Deployed Engineers to join a fast-growing bespoke software studio and support the delivery, productionisation and ongoing support of internally developed applications. This is a hands-on role sitting at the intersection of software engineering, technical quality assurance, release management and application support . You'll work closely with business users, citizen developers and engineering teams, acting as a technical quality gate to ensure applications are safe, robust and ready for production. You'll be comfortable picking up unfamiliar codebases, reviewing code, validating deployments, troubleshooting issues and making targeted improvements where required. What You'll Be Doing Supporting applications through...
Outside Spy
Aug 28, 2026
Duration not stated
React Native Developer - Outside IR35 at Sanderson Recruitment, London, £Contract Rate
Outside Spy London, UK
React Native Engineer/React Native Developer/Senior React Native Developer/Senior Mobile Developer - React Native We've partnered with well known FinTech who are on a complex transformation programme across their mobile apps, web platform and entire technology stack. They want to improve the functionality of a couple of their core products on their mobile app click apply for full job details
Outside Spy
Sep 03, 2026
Duration not stated
Full Stack Engineer at Robert Half Limited, Multiple Locations, £Contract Rate
Outside Spy United Kingdom
Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. London based - 3 days per week onsite We are looking for an experienced Senior Full Stack Engineer to take an established Corporate Governance platform prototype through final development, testing and into production. The platform modernises an existing ASP.NET/on-premises SQL application and is now built using React, Node.js, TypeScript, Azure SQL and Azure Web Apps, within a Microsoft 365 environment. A strong prototype has already been developed, providing the baseline for the next phase. The successful candidate will take ownership of turning this into a robust, scalable and production-ready application. Key Responsibilities: Take the existing prototype through development, testing and production. Work across React, Node.js, TypeScript and Azure SQL. Improve the data model and database architecture, addressing current limitations...
Outside Spy
Sep 03, 2026
up to 6 Months
Automation QA Engineer | .Net, Angular, TypeScript at SR2 - Socially Responsible Recruitment, London, 3 Months, £330-£335 per day
£330 - £335 per day
Outside Spy London, UK
Automation QA Engineer | .Net, Angular, TypeScript Outside IR35 | Remote (UK-based due to project requirements) We are looking for an Automation Test Engineer to support the delivery of a modern web application built using .NET, Angular and TypeScript. You will take ownership of automated testing across the full stack, helping the team improve coverage, identify defects early and deliver reliable software at pace. The Role You will work closely with developers, product and delivery colleagues to design, build and maintain a robust automation testing framework. The role will cover frontend, API and integration testing within an Agile development environment. Key Responsibilities Develop and maintain automated tests for .NET and Angular applications. Build Front End test coverage using TypeScript-based automation tools. Create automated API and integration tests across Back End services. Embed automated testing into CI/CD pipelines. Investigate defects, analyse test...
Outside Spy
Sep 03, 2026
Duration not stated
Full Stack Engineer at Robert Half, London, £Negotiable Rate
Outside Spy London, UK
Robert Half has partnered with a market-leading Financial Services organisation to recruit a Full Stack Engineer for an initial 6 months. London based - 3 days per week onsite We are looking for an experienced Senior Full Stack Engineer to take an established Corporate Governance platform prototype through final development, testing and into production. The platform modernises an existing ASP.NET/on-premises SQL application and is now built using React, Node.js, TypeScript, Azure SQL and Azure Web Apps, within a Microsoft 365 environment. A strong prototype has already been developed, providing the baseline for the next phase. The successful candidate will take ownership of turning this into a robust, scalable and production-ready application. Key Responsibilities: Take the existing prototype through development, testing and production. Work across React, Node.js, TypeScript and Azure SQL. Improve the data model and database architecture, addressing current...
Outside Spy
Sep 01, 2026
Duration not stated
Senior Full Stack Data Quality Engineer at Tokio Marine HCC, London, £Contract Rate
Outside Spy London, UK
Senior Full Stack Data Quality Engineer Assignment type: Outside IR35 The supplier will be engaged to provide specialist hands-on data quality engineering services to the Finance & Data Reporting Product Team across TMHCC’s modern data platform testing, data quality engineering, and test automation. The engagement is focused on delivering agreed testing and automation outcomes across defined operational assurance priorities and initiative delivery outcomes. The supplier will validate data across the full data lifecycle, including ingestion, transformation, data lake, data warehouse, reporting and BI, APIs, metadata, lineage, and reconciliation. Assignment Tasks / Deliverables Full Stack Data Quality Engineering Design and execute data quality testing across ingestion, transformation, warehouse, reporting/BI, APIs, metadata, lineage, and reconciliation layers. Validate Snowflake data lake and data warehouse outputs against source systems, business...
Outside Spy
Aug 28, 2026
6 Months or more
Senior .NET Developer - Application Support & Agile at Ivy Rock Partners, Remote and hybrid working, 6 Months, £Contract Rate
Outside Spy Remote (Remote and hybrid working, UK)
Senior .NET Developer - Application Support & Agile Fully Remote, Outside IR35 6 month contract We are looking for an experienced .NET Developer with strong application maintenance and support experience to join a development team responsible for a business-critical Legacy application. The role will combine hands-on development, application support and Agile delivery, with responsibility for picking up and managing development tickets, resolving live issues, delivering incremental enhancements and supporting sprint planning. The application is primarily built using C#/.NET Framework , with an Angular Front End . Key Responsibilities Maintain, support and enhance a Legacy C#/.NET Framework application. Diagnose and resolve application defects, performance issues and live service incidents. Investigate problems through to root cause and implement robust technical fixes. Deliver minor enhancements and incremental changes in response to business...
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