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Senior Software Engineer (C#, .Net, JavaScript) - Global BigTech

Senior Software Engineer (C#, .Net, JavaScript) - Global BigTech

Remote

London, United kingdom

£ 160,000 /year

Freelance

30-04-2025

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Job Specifications

The role: Senior Software Engineer – Full Stack (C# / JavaScript)
*Remote (London / South East UK only)*
*6 month contract to start ASAP (max 4 weeks notice) - strong poss. of extension
£145k to £160k basic (PAYE, paid weekly via ourselves, within IR35)

UK candidates ONLY - no sponsorship/relocation available sorry

We are looking for an experienced Senior Software Engineer with a strong full stack background in **C# / .NET and JavaScript**.

You must have prior experience working for a **major global tech company** (e.g. Google, Amazon, Meta, Microsoft, Apple or equivalent). This is essential

Requirements:
- Minimum 10 years of professional software engineering experience
- Proven full stack development skills with **C# / .NET and JavaScript (Node.js / React / TypeScript)**
- Strong understanding of modern architecture and scalable systems
- Based in **London or the South East UK** and able to work remotely within that region
- Additional experience with Python or C++ is a bonus, but not required

This role is not suitable for:
- Candidates without Big Tech company experience
- Developers without strong, recent hands-on experience in the required tech stack
- Candidates based outside of London or the South East UK

If you meet the criteria and want to work on high-quality projects in a remote-first environment, please apply. Hurry; deadline is tomorrow (Thurs 1st May)!

About the Company

Welcome to Principle's LinkedIn profile page! We are a globally recognised, multi-award-winning recruitment agency specialising in partnering with MSPs and organisations to place contingent and permanent workers across various sectors, including Technology, Engineering, Media, Marketing, Operations, Legal, Finance, and HR in Ireland and the UK. At Principle, we are proud champions of Diversity, Equity, and Inclusion (DE&I) and are a diverse-owned recruitment agency certified as Women Owned by WEConnect International. Our c... Know more