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ELEKSEL

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

ELEKS is a global software development company that provides full-cycle engineering outsourcing services across various industries, specializing in custom software, data science, and technology consulting.

ELEKS

Employee count: 1001-5000

Ukraine only

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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

About the job

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Posted on

Job type

Contractor

Experience level

Experience

5 years minimum

Location requirements

Hiring timezones

Ukraine +/- 0 hours

About ELEKS

Learn more about ELEKS and their company culture.

View company profile

At ELEKS, we are passionate about custom software development and engineering excellence. We provide full-cycle software engineering outsourcing services, from ideation to finished products, ensuring quality and transparency at every step. Our expertise spans across various sectors including fintech, healthcare, retail, and logistics, allowing us to create tailored solutions that meet the unique needs of our clients.

Founded in 1991, we have grown to include over 2000 highly skilled professionals with deep knowledge in areas such as AI, data science, and enterprise applications. We pride ourselves on building lasting partnerships and delivering high-impact technology solutions that drive real business results. Our dedicated teams work closely with Fortune 500 companies, big enterprises, and technology challengers globally, leveraging innovative strategies and the latest technology trends.

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ELEKS

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