Senior .NET Engineer - SmartGrants

Location: Poland Working mode: Remote (with occasional business travel) Language: English We are looking for a senior .NET engineer based in Poland. Working closely with technical and business stakeholders, you will take an active role in stabilising the solution, reducing technical debt and improving the engineering practices needed for dependable long-term operation.

offers significant ownership and the opportunity to influence architecture, quality standards and technical priorities. Your key responsibilities include the following: Build a strong understanding of the existing codebase, architecture, integrations and business-critical workflows Create and drive a risk-based technical debt roadmap focused on stability, security, maintainability and supportability through 2030 Modernise the .NET application and key dependencies in pragmatic, incremental steps while protecting business continuity Diagnose and resolve production issues, recurring defects, performance bottlenecks and integration failures Improve automated testing, code quality, logging, monitoring and operational documentation Strengthen CI/CD, deployment practices, environment consistency and safe rollback approaches Document key design decisions, interfaces, runbooks and critical business logic, and share knowledge across the team Work with business and technical stakeholders to prioritise improvements according to operational risk and business value What we are looking for We are seeking a candidate