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4 software engineer jobs found

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software engineer £700 and up
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Greater London  (2) England  (1)
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Outside Spy
Feb 13, 2026
Duration not stated
Software Engineer at CipherTek Recruitment, United Kingdom, £750 per day
£750 per day
Outside Spy United Kingdom
Role: Expert .NET Developer – Cross Asset Trading System Location: Very Flexible. Can offer Remote with occasional travel to London City offices Contract: 12 months Rate: Up to £750/day (OUTSIDE IR35) About the Role: We are partnering with a leading investment bank on an ambitious programme to modernise and enhance their cross-asset trading systems. This is a technically challenging, hands-on role, ideal for an expert .NET developer with a strong SQL Server background and experience working in financial environments. You will be joining a highly skilled team focused on performance, reliability, and scalability, tackling complex issues in real-time, data-driven applications. This is purely a tech-heavy role—business knowledge is helpful but not required. What You’ll Be Doing: Design, develop, and maintain RESTful APIs using .NET technologies (C#, ASP.NET Core). Redesigning and refactoring high-activity tables to improve performance and...
Outside Spy
Feb 23, 2026
6 Months or more
C# Developer at Lorien, London, 6 Months, £750-£800 per day
£750 - £800 per day
Outside Spy London, UK
Senior C# Developer - Commodities Trading - Outside IR35 Exciting opportunity for an experienced senior developer to build on their experience in Commodities or similar trading development role in this successful Commodities Trading company. £750 - 800 per day Outside IR35 The Senior C# Developer will have significant prior experience as a Senior Software Engineer/Senior Developer working as C# Developer in a Commodities trading environment where they will have gained knowledge of the full trade life cycle and feel comfortable speaking directly to traders and senior stakeholders in the business as well as senior technical colleagues such as architects. Central London location, with Hybrid working expected. Very strong core skills in C# are expected Good knowledge of Commodities Trading is also required. Please apply now if your curious to learn more, for a confidential discussion about the role and company Guidant, Carbon60, Lorien & SRG - The Impellam Group...
Outside Spy
Feb 19, 2026
Duration not stated
C# | .NET | Azure | Docker | Kubernetes | Microservices | Hybrid | £750pd | Outside IR35 at VirtueTech Recruitment Group, London Area, £750 per day
£750 per day
Outside Spy London Area, United Kingdom
C# | .NET | Azure | Docker | Kubernetes | Microservices | Hybrid | £750pd | Outside IR35 One of our leading clients in the Energy Trading space is looking for a software engineer to join there team building new features across their trading suite. They are looking for a Senior .NET Engineer who is strong working in backend systems, as well as being comfortable building and maintaining pipelines using CI/CD, Docker and Kubernetes. The reason for the additional headcount is due to the client heavily investing in new emerging commodities markets, you will be joining a squad of senior engineers, so for this role you do not need to have previous energy trading experience. However if you do this would be advantageous. Contract Details: 6 months rolling contract Outside IR35 Hybrid - 3 days a week onsite in London Up to £750 per day Tech Stack: C# .NET Azure / AWS (the client is cloud agnostic) Docker / Kubernetes / AKS CI/CD Microservices If...
Outside Spy
Feb 24, 2026
6 Months or more
Head of Software Engineering (.NET & React) at djr, Slough, 6 Months, £800 per day
£800 per day
Outside Spy Slough, UK
Head of Software Engineering (.NET & React) Hybrid - Slough Contract - £800/day Outside IR35 PLEASE NOTE THIS ROLE WILL REQUIRE YOU BEING IN THE OFFICE 2-3 DAYS PER WEEK. A confidential SaaS scale-up is seeking an experienced Head of Software Engineering to lead and mature a growing technology function. You'll take ownership of a 20-strong engineering team (permanent and contractors) and play a key role in scaling delivery capability, strengthening engineering standards, and aligning technical execution with commercial objectives. The Role Lead and develop the engineering function across Back End and Front End technologies ( .NET & React ) Set engineering standards, governance, and quality metrics Shape the technical roadmap alongside Product and senior leadership Improve delivery predictability, release cadence, and operational resilience Mentor senior engineers and team leads Ideal Background Proven leadership within a SaaS or...
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