Senior Backend Developer (.NET / High-Performance Systems)

Industry: Financial Services / Hedge Fund / FinTech

We are looking for passionate and creative developers eager to craft innovative products and embrace new technologies. You will be part of a small, agile, and highly skilled team of technologists who are building the next generation of solutions for our Risk Management team and Portfolio Managers. To thrive in our team, you should possess an independent mindset while enjoying a collaborative working environment. We value candidates with full software lifecycle experience, encompassing requirements gathering, implementation, testing, release, and ongoing support Key Responsibilities: Design & Architecture: Build and optimize robust backend architectures following Clean Architecture and DDD principles. High-Performance Engineering: Develop, profile, and fine-tune low-latency, high-throughput applications capable of handling complex financial data. Concurrency Management: Implement complex multi-threaded and asynchronous workflows, ensuring bulletproof thread safety and resource management. Database Optimization: Write, analyze, and optimize complex SQL queries and data structures to eliminate bottlenecks. End-to-End Ownership: Collaborate directly with Risk Managers and Portfolio Managers to gather requirements, implement features, and provide ongoing support Required Qualifications: Experience: 5+ years of backend development experience, preferably within a hedge fund, investment banking, or high-frequency trading environment Tech Stack Expertise: Deep expertise in backend development with a strong focus on high-performance frameworks (C#/.NET ecosystem or similar high-performance OOP language) Core Concepts: Solid mastery of Object-Oriented Programming (OOP), SOLID principles, and clean code practices. Soft Skills: Excellent English communication skills and a highly collaborative mindset to interface with cross-functional global teams Mandatory Technical Skills Architecture: Clean Architecture & SOLID principles System Design: Experience building High-Performance, Low-Latency applications & Scalable/Distributed Systems. Asynchronous & Concurrency: Multi-threaded programming, async / await (Task Parallel Library - TPL), and concurrency & thread safety Optimization & Memory: Performance profiling & tuning, Memory management / Garbage Collection (GC) tuning, and Dependency Injection /IoC Data Layer: Advanced SQL performance optimization.