Senior C# developer - Lorien Impellam

Risk & P&L IT Senior Developer

Location: London (Hybrid, 3 days onsite)

Contract Length: 6 Months Initial Contract

Day Rate: (Inside IR35)

Overview

We are seeking an experienced Risk & P&L IT Senior Developer to join a high-performing Global Markets technology team supporting critical Risk, P&L, and Front Office reporting platforms. This role will play a key part in the design, development, enhancement, and support of applications used across trading, risk management, and finance functions.

Key Responsibilities

• Participate in the full Agile Scrum delivery lifecycle, including sprint planning, technical design sessions, development, testing, and release activities.
• Work directly with Front Office, Risk, and Finance stakeholders to gather requirements and define user stories.
• Design, develop, and maintain high-quality applications supporting Risk and P&L reporting and analysis.
• Deliver robust, well-structured, and maintainable code with appropriate unit and integration testing.
• Participate in code reviews and champion engineering best practices across the development team.
• Provide 3rd line production support and troubleshoot complex business-critical issues.
• Mentor junior developers and contribute to the continual improvement of software engineering standards across the team.

Required Skills & Experience

Essential

• Significant software engineering experience with a proven track record of delivering complex enterprise systems.
• Strong knowledge of Python or C#/.NET development within enterprise environments.
• Experience developing applications in multi-threaded and distributed environments.
• Strong SQL development skills, including complex query optimisation and database design.
• Experience working with SQL Server, ClickHouse, or other high-volume data platforms.
• Experience building and consuming APIs and developing scalable backend services.
• Solid understanding of CI/CD, DevOps practices, version control, and automated testing.
• Experience within Agile/Scrum delivery environments.

Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.