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Senior C# Developer

Job in City Of London, Central London, Greater London, England, UK
Listing for: Lorien
Part Time position
Listed on 2026-05-25
Job specializations:
  • Software Development
    Software Engineer, Backend Developer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: City Of London

Hybrid Working - London - 2 days a week on site.

Lorien's leading banking client is looking for a Senior C# Developer to join them, working on a critical, high volume, transactional system. Contribute to the re-architecture and modernisation of the platform.

This role is based in London.

This role will be Via Umbrella.

Working in a Hybrid Model of 2 day a week on site.

Main skills needed
  • Delivers high quality code and system designs for the FX Deal Capture Platform
  • Contributes to the re-architecture of the platform to meet business growth ambitions.
  • Analysis of business and technical requirements
  • Liaise with stakeholders, team members and other domain experts to capture and elaborate business requirements across domains / systems
  • Accurate reporting to management regarding development initiatives and progress
  • Follow‑up on production issues.
  • Deliver high quality software. Ensure that the systems are designed for performance and reliability in production.
  • Degree level qualification (ideally in Computing or Engineering)
  • Excellent Software Engineering skills
  • Strong programming background with a particular emphasis on C#, .NET Core
  • additional knowledge of C++ would be beneficial
  • Domain expertise in a volume transactional system (FX, Equities or other financial transactions)
  • Experience of a working with a range of business and IT stakeholders
  • Experience of working with offshore development teams
  • Experience of business-critical system development, testing and support
Experience and knowledge of the following technologies
  • Webservices
  • XML
  • FTML
  • Database - Oracle/SQL
  • IBM MQ
  • Ability to liaise effectively with developers, business and other stakeholders
  • Ability to work effectively as part of a formal project process.
  • Strong analytical and interpersonal skills as well as reporting capabilities
  • Business oriented, positive, resilient, full of stamina with a clear focus on results and deliveries

Guidant, Carbon
60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.

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Position Requirements
10+ Years work experience
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