Full Stack Developer (React & .NET)

Start Date: ASAP / Within 1 Month / Flexible Work Model: 100% remote  Contract Type: B2B (140-160 PLN/h + VAT) We are looking for a highly skilled Full Stack Developer with deep expertise in React for frontend development and C# .NET Core for backend services. This role requires hands‑on experience building scalable, cloud‑native systems, along with strong exposure to capital markets, especially within credit risk and market risk domains.  Expectations • Minimum 4-5 years of professional software development experience across frontend and backend technologies. • Strong expertise in React, C# .NET Core, microservices, event‑driven architecture, and distributed systems. • Hands‑on experience with Python (pyspark), Power BI dashboards, data modeling, and analytical reporting. Responsibilities • Develop and maintain full stack applications using React, C# .NET Core, and modern cloud‑native technologies. • Build scalable backend services, REST APIs, and microservices with a focus on performance and resilience. • Implement modular, accessible, and high‑quality frontend components using React and TypeScript. • Collaborate with business and risk experts to deliver solutions in credit risk, market risk, and capital markets workflows. • Work with Python (pyspark) to build data pipelines, transformations, and analytics processes. What We Offer • Medicover healthcare package • Multisport card • Access to an e-learning platform • Group life insurance