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HRMS, Middle Strong/Senior Full-Stack (.Net+React) Developer, JR129, JR130

1 month, 1 week ago
Poland, Ukraine
Contract
Senior
Backend Engineer
Software Development
C# CI/CD Cypress JWT Kubernetes .NET OAuth OpenID Connect OpenTelemetry Playwright React Redis SQL Server TypeScript
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ELEKS

ELEKS

ELEKS specializes in providing software engineering, technology consulting, and quality assurance services, helping industry leaders transform innovative ideas into effective business solutions across various sectors, including data science, mobility, ...

Construction & Engineering
1K-5K
Founded 1991
View All Jobs 13

Description

  • Design and implement backend services using ASP.NET Core Web API and ASP.NET Core MVC with Razor.
  • Apply SOLID principles, dependency injection, and layered architecture in backend development.
  • Build and maintain reliable workflows using Temporal.
  • Use Redis for caching, session storage, pub/sub, and distributed locks.
  • Lead frontend architecture using React + TypeScript, Module Federation, and RsPack.
  • Ensure CI/CD, containerization, Kubernetes deployment patterns, and system observability.
  • Drive unit, integration, and end-to-end testing practices across backend and frontend.
  • Conduct code reviews and mentor team members.
  • Troubleshoot production incidents, including performance tuning, memory leaks, and scaling issues.

Requirements

  • 5+ years of professional software development experience with 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 experience with Keycloak or an equivalent identity solution, plus knowledge of OAuth2, OIDC, JWT, cookie security, CORS, and CSRF mitigation.
  • Experience with Redis for caching and distributed coordination.
  • Strong React + TypeScript experience, including hooks, Suspense, and patterns for large applications.
  • Experience with unit, integration, and E2E testing using Cypress or Playwright.
  • Experience with logging, distributed tracing using OpenTelemetry, metrics, and alerting.
  • Upper-intermediate or higher English level.
  • Temporal experience or equivalent, including idempotent activities, child workflows, error handling, and retries, is a plus.
  • Deep experience with SQL Server high-availability and performance tooling is a plus.
  • Experience with monorepo tooling and package management such as pnpm, Yarn Workspaces, or Nx is a plus.
  • Familiarity with accessibility, internationalization, and enterprise security/compliance is a plus.
  • Prior experience designing governance for micro-frontends and runtime orchestration is a plus.
  • Experience with Telerik Reporting is a plus.

Interested in this position?

Apply directly on the company website

Apply Now

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