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Full Stack .NET Developer - Treasury Systems

Harvey Nash Poland — Poland · Posted ~1 hour ago

Mid Full-time Hybrid 28000-33000 PLN gross

Skills

C# .NET React TypeScript API development SQL Software testing CI/CD

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Summary ✨ AI‑Generated

A full stack engineering role focused on building scalable applications for financial workflows and data-intensive environments. The position involves backend services, modern web interfaces, automated testing, and continuous delivery practices.

Highlights

Work on complex financial technology systems, modernize enterprise applications, collaborate with domain experts, and apply modern engineering practices.

Description

Full Stack .NET Developer – Treasury & Financing Systems | Hybrid (3 days/week, Warsaw) | Permanent Employment (UoP), 28 000–33 000 PLN gross You will: Build and own full-stack systems delivering workflow automation, real-time data and analytics for global treasury and trading professionalsDesign and implement scalable C#/.NET services and APIs processing trades, financing and liquidity dataBuild responsive single-page interfaces (React, TypeScript) surfacing large financial datasets to end usersDevelop and optimize backend services using modern .NET technologies, including server-side pagination for large datasetsExtend, maintain and modernize legacy .NET Framework systems (margin calculation, financing platforms)Partner with traders, treasury professionals and other technology teams to translate business needs into reliable solutionsImplement automated testing (unit, integration, TDD) and drive CI/CD and DevOps practicesTroubleshoot production incidents and improve system observability and monitoringCollaborate as part of a distributed development team across multiple time zonesYou bring: Production experience with C# and the .NET ecosystem (.NET Framework and .NET Core), ideally in a financial domainExperience with ASP.NET Core REST services, including server-side pagination for large datasetsExperience building SPAs in JavaScript/TypeScript using React (ag-grid or Highcharts a plus)Strong experience with Microsoft SQL Server, including schema design and query tuningExperience with automated testing and TDD practicesKnowledge of microservices, Docker, and observability/monitoring practicesExperience with DevOps and CI/CD tools (GitHub, GitLab, Jenkins)Strong problem-solving and communication skills, comfortable in a distributed, cross-functional team