Fintech Developer (C#)

The company is a fast-growing fintech firm building next-generation infrastructure for credit markets. Our back office platform handles high-volume reconciliation, position management, and reporting across complex credit products. We are a lean, high-performance team where engineers work directly with business stakeholders and see the impact of their work every day.

The Role

We are looking for a hands-on C# engineer to join our engineering team. You will own the development and maintenance of reconciliation systems for credit products — ensuring positions, cash flows, and transactions are accurate, timely, and auditable. This is a core operations-facing role with direct exposure to trading, finance, and operations teams.

Responsibilities

• Build and maintain systems for credit products (loans, bonds, derivatives)
• Develop and optimize SQL queries, stored procedures, and data pipelines supporting daily workflows
• Identify and resolve breaks between internal systems and counterparty/custodian records
• Collaborate directly with operations, finance, and trading teams to understand business requirements and deliver solutions
• Support and enhance position management, cash management, and P&L reporting modules
• Participate in code and design reviews; contribute to system architecture improvements
• Troubleshoot production issues and provide timely resolution in a fast-paced environment

Requirements

• 3–5 years of hands-on C# development experience in a financial services or fintech environment
• Strong SQL skills — complex queries, stored procedures, performance tuning
• Experience with back office systems: reconciliation, position keeping, cash management, or accounting
• Familiarity with mortgage loans is strongly preferred
• Ability to work independently and manage competing priorities in a production environment
• Strong communication skills — comfortable working directly with non-technical operations and finance users
• US Citizen or Green Card holder; must be able to work onsite in Greenwich, CT

Nice to Have

• Experience with fixed income or structured credit platforms (e.g., WSO, Geneva, Calypso, Orchestrade or similar)
• Exposure to trade lifecycle management or settlements workflows
• Familiarity with CI/CD practices and version control (Git)
• Prior work in a start-up or high-growth fintech environment

What We Offer

• $140,000 – $160,000 base salary commensurate with experience
• Full Healthcare and matching 401k
• 20% performance-based bonus
• Direct exposure to senior leadership and meaningful ownership from day one
• Collaborative, low-bureaucracy environment with a high-caliber team
• Opportunity to shape the architecture of a growing credit technology platform