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5 front end app developer jobs found in London

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London front end app developer
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Greater London  (5) Hybrid  (1)
Outside Spy
Apr 28, 2026
6 Months or more
Engineering Manager (Front-End) at Mindera, London Paddington, 6 Months, £Contract Rate (Outside IR35)
Outside Spy Paddington, London, UK
Description We are seeking a passionate Software Engineering Manager with a strong background in modern frontend engineering, particularly React, Next.js, and TypeScript, to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams -designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a best-in-class frontend engineering capability, establishing modern development practices and building scalable, high-performance web applications. This is an initial 6-month contract (outside IR35) requiring 3 days per week onsite in Paddington, London. Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of frontend engineers specialising in React, Next.js, and TypeScript. Foster a culture of collaboration, technical excellence, and...
Outside Spy
Apr 28, 2026
6 Months or more
Engineering Manager (Front-end) at Mindera, London/Hybrid, £Contract Rate Outside IR35
Outside Spy Hybrid (Paddington, London, UK)
Description We are seeking a passionate  Software Engineering Manager  with a strong background in  modern frontend engineering , particularly  React, Next.js, and TypeScript , to provide technical leadership and operate with excellence. Creative, curious, and confident, you will be an integral part of our empowered, self-managing, multi-disciplinary engineering teams—designing, building, releasing, and maintaining high-quality digital products. You will play a key role in shaping and growing a  best-in-class frontend engineering capability , establishing modern development practices and building scalable, high-performance web applications. This is an  initial 6-month contract (outside IR35)  requiring  3 days per week onsite in Paddington, London . Requirements Key Accountabilities Team Leadership Build, mentor, and lead a high-performing team of  frontend engineers specialising in React, Next.js, and...
Outside Spy
Apr 20, 2026
Duration not stated
Contract .Net Developer – Insurance claims system at hireful, London, £350 to £400 per Day
£350 - £400 per day
Outside Spy London, UK
Join this leading Insurance company as an Interim Back-End .NET Developer and play a key role in transforming a modern, high-impact claims automation platform. This is an exciting opportunity to work at the heart of a major claims’ integration programme, designing and building scalable APIs and microservices using the latest .NET technologies, including the likes of .NET Core, .NET 5+. Working within a collaborative and fast-paced delivery environment, you will develop robust backend solutions that integrate seamlessly across multiple systems, You’ll take ownership of designing, developing, and unit testing high-quality code, ensuring solutions are secure, performant, and aligned with best practice coding standards. This role is primarily backend-focused, with some opportunity to contribute minor front-end enhancements where required. Role: Senior .Net Backend Developer, Senior .Net Developer, .Net Core Developer, Software Engineer, Contract .Net Developer, Lead .Net Developer...
Outside Spy
Apr 20, 2026
Duration not stated
Contract .Net Developer – Insurance claims system at Hireful, Central London, £400 per day
£400 per day
Outside Spy Central London, London WC2N 5DU, UK
Join this leading Insurance company as an Interim Back-End .NET Developer and play a key role in transforming a modern, high-impact claims automation platform. This is an exciting opportunity to work at the heart of a major claims’ integration programme, designing and building scalable APIs and microservices using the latest .NET technologies, including the likes of .NET Core, .NET 5+. Working within a collaborative and fast-paced delivery environment, you will develop robust backend solutions that integrate seamlessly across multiple systems, You’ll take ownership of designing, developing, and unit testing high-quality code, ensuring solutions are secure, performant, and aligned with best practice coding standards. This role is primarily backend-focused, with some opportunity to contribute minor front-end enhancements where required. Role: Senior .Net Backend Developer, Senior .Net Developer, .Net Core Developer, Software Engineer, Contract .Net Developer, Lead .Net Developer...
Outside Spy
Apr 20, 2026
Duration not stated
Contract .Net Developer - Insurance claims system at hireful., Central London, £Contract Rate
Outside Spy Central London, London WC2N 5DU, UK
Join this leading Insurance company as an Interim Back-End .NET Developer and play a key role in transforming a modern, high-impact claims automation platform. This is an exciting opportunity to work at the heart of a major claims' integration programme, designing and building scalable APIs and microservices using the latest .NET technologies, including the likes of .NET Core, .NET 5+. Working within a collaborative and fast-paced delivery environment, you will develop robust backend solutions that integrate seamlessly across multiple systems, You'll take ownership of designing, developing, and unit testing high-quality code, ensuring solutions are secure, performant, and aligned with best practice coding standards. This role is primarily backend-focused, with some opportunity to contribute minor front-end enhancements where required. Role: Senior .Net Backend Developer, Senior .Net Developer, .Net Core Developer, Software Engineer, Contract .Net Developer, Lead .Net...
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