Full Stack Engineer

Senior Full Stack Developer | Kingston, PA · New York, NY · Hollywood, FL · $150,000–$300,000

About the Role A growing fintech company is seeking a Senior Full Stack Developer to take ownership of complex backend systems and help shape the technical direction of their engineering team. This role calls for deep expertise in .NET and C# within a collaborative environment where technical decisions carry real weight. With offices across three cities, flexibility is built into how the team operates.

Key Responsibilities

Backend Architecture & Development

• Lead the design and development of high-performance backend systems using .NET, .NET 4, and ASP.NET Core
• Write and review production-quality C# code across mission-critical fintech platforms

Database Engineering

• Architect and optimize database solutions in MySQL and SQL Server
• Drive best practices around data modeling, query performance, and database reliability

Infrastructure & Scalability

• Own Redis implementation and caching strategy to support high-throughput financial applications
• Mentor mid-level developers and contribute to engineering standards across the team

Qualifications

• Senior-level experience in full stack development with deep backend expertise
• Strong command of .NET / .NET 4, ASP.NET Core, and C#
• Advanced proficiency in MySQL and/or SQL Server
• Experience architecting Redis caching in production environments