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3 react developer jobs found

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react developer £400 - £500 Greater London
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London  (3)
Outside Spy
Jun 17, 2026
Duration not stated
Full Stack Engineer at Fynity, London Area, £400 per day
£400 per day
Outside Spy London Area, United Kingdom
Senior Full-Stack Engineer - 6 Months Contract - up to £400 Per day Outside IR35 - Retail We’re working with a well-established retail business currently undergoing a major internal transformation programme, and they’re looking for a Senior Full Stack Developer to join on a 6 month contract. The business has been operating successfully for over 10 years and combines the stability of an established company with the pace and culture of a start-up environment. Decisions happen quickly, there’s very little hierarchy, and engineers are trusted to own delivery and make a tangible impact. This role will focus heavily on building modern internal applications and operational tooling that support large-scale scheduling, fulfilment, logistics, optimisation and customer service functions across the business. The Role You'll play a key role in developing modern React-based internal applications alongside supporting .NET backend services, helping replace legacy workflows with...
Outside Spy
Jun 15, 2026
Duration not stated
Full-Stack Engineer at Click, London, to £400 per day
£300 - £400 per day
Outside Spy London, UK
Senior Full Stack Developer - .NET/React Outside IR35 Contract Up to £400 per day Initial 3-6 Month Contract | Immediate Start - 1 day a week in London We're working with a well-established retail business currently undergoing a major internal transformation programme and they're looking for a Senior Full Stack Developer to join immediately on an Outside IR35 contract basis. The business has been operating successfully for over 10 years and combines the stability of an established company with the pace and culture of a start-up environment. Decisions happen quickly, there's very little hierarchy, and engineers are trusted to own delivery and make an impact. This role will focus heavily on building modern internal applications and operational tooling that support large-scale scheduling, optimisation and customer service functions across the business. The Role You'll play a key role in developing modern React-based internal applications alongside supporting .NET Back...
Outside Spy
Jun 16, 2026
Duration not stated
Delivery Lead (Contract) at Softwire, London Area, £500-£650 per day
£500 - £650 per day
Outside Spy London Area, United Kingdom
Delivery Lead - Outside IR35 - Contract (Insurance) About the role Delivery Leads are responsible for the successful delivery of our clients’ projects across the full lifecycle, from inception to launch and beyond. Typical project sizes range from 50 to 1,000 days, and our projects span multiple sectors and technologies. On this occasion, you’ll work alongside a client’s Finance function to make sense of their portfolio of change. You’ll help bring together the various Finance and CDO (Chief Data Officer) initiatives, build a shared view of the roadmap, and support the decisions on what order things should be delivered in – weighing each initiative on cost, ease, risk and value. This starts as a portfolio-shaping effort. Once the priorities are agreed, you’ll lead the delivery of that work, keeping it flowing and the team motivated, supported, and happy. Your job is to keep the delivery running smoothly and make sure the client has a positive experience...
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