Senior Fullstack Developer (React & .NET Core)

About the Role

Senior Full Stack Developer with strong React frontend and C# .NET Core backend experience. Build scalable, cloud-native apps for capital markets with focus on credit risk and market risk. Practical experience with Python (pyspark), CI/CD, microservices, and event-driven architectures is required.

Key Responsibilities

• Develop and maintain full stack apps using React and C#.NET Core.
• Implement high-performance backend services, REST APIs and microservices.
• Create responsive, modular UI components (JS/TS).
• Collaborate with stakeholders and risk domain experts on credit risk and market risk solutions.
• Use Python (pyspark) for data pipelines and transformations.
• Maintain and optimize Power BI dashboards and data models.
• Implement and improve CI/CD pipelines, automated testing and monitoring.
• Design event-driven and distributed systems (Kafka, Event Hub, etc.).
• Drive best practices: code reviews, tests, performance tuning, docs.
• Support cloud migration and modernization (Azure, AWS).
• Mentor junior developers in an agile, cross-functional team.

Offer:

• Location: Poland, remote (equipment pickup in Warsaw/Wrocław).
• Zatrudnienie: przez apreel na zasadach B2B.
• Start: asap.
• Rate: up to 155 zł netto/h.