Senior Full Stack Developer (React & .NET Core) (m/k/n)

O projekcie: About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise in React on the frontend and C# .NET Core on the backend. The ideal candidate will have substantial hands-on experience developing scalable applications, strong exposure to cloud-native architectures, and a solid understanding of capital markets—particularly in credit risk and market risk domains. Experience with Python (pyspark) for data-driven workflows and a strong command of CI/CD, microservices, and event-driven architectures is essential. Wymagania: Required Skills & ExperienceTechnical Skills - 10+ years of professional software development experience. - Front-end:Strong proficiency in React.js, JavaScript/TypeScript, Redux/RTK, hooks, and modern UI patterns. - Back-end:Expertise in C# .NET Core, C#, REST APIs, Web APIs, and microservices-based development. - Python (pyspark):Hands-on experience with distributed data processing, data pipelines, and analytic transformations. - Power BI:Extensive experience developing dashboards, data models, DAX calculations, and enterprise-grade BI solutions.o     Strong understanding of data modeling, performance tuning, and governance in Power BI. - Architecture:Strong knowledge of microservices, API design, event-driven architectures, and distributed systems. - DevOps / CI/CD:Experience with Azure DevOps, GitHub Actions, Jenkins, or similar.o     Strong understanding of automated builds, testing, deployment, and monitoring. - Cloud Platforms:Experience with Azure or AWS (Azure preferred). - Databases:oProficiency with SQL Server, PostgreSQL, or other relational databases; NoSQL knowledge a plus. - Containerization:Experience with Docker, Kubernetes, container orchestration. Domain Knowledge - Understanding of capital markets, specifically: - Credit risk (PD, LGD, EAD, credit exposure modeling, counterparty risk). - Market risk (VaR, sensitivities, stress testing, pricing concepts). - Familiarity with regulatory frameworks (e.g., Basel, FRTB, IFRS9) is a strong advantage. Soft Skills -      Strong analytical and problem solving abilities. -      Excellent communication skills and ability to interact with technical and non-technical stakeholders. -      Collaborative, agile mindset with experience in Scrum/Agile environments. -      Ability to work independently and lead technical solutions end to end. Codzienne zadania: - Design, develop, and maintain full stack applications using React, C#.NET Core, and supporting technologies.       - Build high-performance backend services, RESTful APIs, and microservices with focus on scalability, maintainability, and resilience. - Develop responsive, modular, and accessible UI components using React and modern JS/TS patterns. - Collaborate closely with business stakeholders and risk domain experts to deliver solutions in credit risk, market risk, and related capital markets functions. - Work with Python (pyspark) for data transformation, data pipelines, and analytics workflows. - Develop, optimize, and maintain Power BI dashboards, data models, and analytical reports for business users. - Implement and optimize CI/CD pipelines, ensuring robust automated testing, deployment, and monitoring. - Architect and contribute to event-driven and distributed system designs using technologies such as Kafka, Event Hub, or similar. - Drive engineering best practices: code reviews, unit/integration testing, performance tuning, documentation. - Contribute to cloud migration and modernization initiatives, especially in Azure or AWS environments. - Mentor junior developers and collaborate within a cross-functional agile team.