LanceSoft UK
Lead Dotnet Developer
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Job Title: Senior C# /.NET Developer – Financial Services
Location: London, UK (Hybrid-3days/week)
Duration: 6 Months (Possible Extension)
Job Description:
We are seeking an experienced C# /.NET Developer to join a technology team supporting critical Financial Services platforms, with a strong focus on Risk Management and/or Securities Lending domains. The role involves designing, building, and supporting high-performance systems used for risk calculations and trading/financing workflows. You will work closely with quants, risk managers, business analysts, and product owners to deliver robust, scalable solutions in a regulated environment.
Key Responsibilities
- Design, develop, and maintain C# /.NET applications supporting Risk or Securities Lending platforms
- Build and consume RESTful APIs to integrate with upstream/downstream systems
- Implement scalable, testable, and maintainable object-oriented code following best practices
- Contribute to risk workflows including exposure calculations, limits, and reporting
- Work with large data sets and high throughput systems typical of financial services
- Participate in code reviews, architectural discussions, and technical design sessions
- Collaborate with cross functional teams (Risk, Front Office, Operations, Compliance)
- Support production systems and assist with incident analysis and remediation
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Required Skills & Experience
Core Technical Skills
- Strong hands-on experience with C# and .NET (.NET Core /.NET)
- Excellent Object-Oriented Programming (OOP) skills and design principles
- Proven experience designing and implementing APIs (REST / JSON)
- Solid understanding of application architecture, performance, and scalability
- Experience with SQL databases (e.g. SQL Server)
- Familiarity with unit testing, integration testing, and CI/CD pipelines
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Financial Services Domain Knowledge (Essential)
- Experience working in Financial Services technology environments
- Strong domain knowledge in at least one of:
- Risk Management
- Securities Lending / Prime Brokerage
- Collateral, Margin, or Financing platforms
Risk & Regulatory Experience (Highly Beneficial)
- Exposure to risk and regulatory methodologies such as:
- RWA (Risk Weighted Assets)
- CCAR
- Basel III / Basel IV frameworks
- Understanding of credit risk, counterparty exposure, or capital calculations is a strong advantage
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