ELEKS Software Engineering and Development Office is looking for a Middle Strong/Senior Full-Stack (.Net+React) Developer in Ukraine or Poland.
ABOUT PROJECT
The project, funded by the US Government, involves the development of a Human Resources System for various ministries in a Middle Eastern country. This initiative aims to improve the efficiency and effectiveness of human resource management across multiple departments.
REQUIREMENTS
- 5+ years of professional experience in software development using C# / .NET / .NET Core
- Strong experience with ASP.NET Core Web API and ASP.NET Core MVC
- Production experience with MS SQL Server
- Experience with Dapper
- Hands-on Keycloak (or equivalent) and solid knowledge of OAuth2/OIDC/JWT, cookie security, CORS, CSRF mitigation
- Redis for caching and distributed coordination
- Strong React + TypeScript experience (hooks, Suspense, patterns for large apps)
- Unit & integration testing for .NET and frontend; E2E testing (Cypress/Playwright)
- Logging, distributed tracing (OpenTelemetry), metrics and alerting
- Upper-intermediate or higher level of English
- Nice-to-have:
- Temporal experience (or equivalent): designing idempotent activities, child workflows, error handling and retries
- Deep experience with SQL Server high-availability and performance tooling
- Monorepo tooling and package management (pnpm, Yarn Workspaces, Nx)
- Accessibility, i18n, enterprise security/compliance familiarity
- Prior experience designing governance for micro-frontends and runtime orchestration
- Experience with Telerik Reporting
RESPONSIBILITIES
- Design and implement backend services using ASP.NET Core Web API and MVC + Razor, applying SOLID principles, dependency injection, and layered architectures
- Build reliable workflows with Temporal
- Use Redis for caching, session storage, pub/sub, and distributed locks
- Lead frontend architecture: React + TypeScript, Module Federation (host/remotes), RsPack bundling/optimization
- Ensure CI/CD, containerization, Kubernetes deployment patterns, and observability (logging/tracing/metrics)
- Drive testing practices (unit, integration, E2E), code reviews, and mentor team members
- Troubleshoot production incidents: performance tuning (SQL and frontend), memory leaks, and scaling issues
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