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.
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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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