Senior Software Engineer

New
R
RITS GroupSoftware Development
Warszawa, PL; 100% zdalnieContractSenior
Salary100 - 140 PLN per hour
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Job Details

Languages
Polish (C1), English (C1)
Required Skills
Microsoft SQL ServerMongoDBTypeScriptC#Azure.NETRedisReact

Requirements

  • Very good, current knowledge of .NET and C#.
  • Professional experience building production-grade enterprise systems.
  • Solid experience with SQL Server or comparable relational databases.
  • Practical experience building and maintaining HTTP APIs.
  • Experience with production-level asynchronous and queue-based processing.
  • Experience working with applications hosted in Azure.
  • Proficiency in React and TypeScript for end-to-end development.
  • Proven ability to manage functionality from implementation to production support.
  • Strong technical communication skills for design and project collaboration.
  • Fluent in Polish (C1) and English (C1).

Responsibilities

  • Design and implement large-scale features from project inception through production deployment.
  • Develop and maintain HTTP APIs, business logic, integrations, and asynchronous data processing.
  • Develop frontend components using React and TypeScript when required for end-to-end functionality.
  • Participate in technical decision-making and architectural design discussions.
  • Maintain high code quality through rigorous code review processes.
  • Support and mentor less experienced team members.
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100 - 140 PLN per hour
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