Full-Stack .NET Developer (React)

Quick Facts

• Role: Full-Stack .NET Developer (React)

Description

Develop and maintain .NET-based applications and implement and evolve the frontend layer with React 18+. Analyze, debug, profile, and refactor existing (including legacy) code, and support system architecture design. Collaborate in a Scrum team with analysts, testers, and Product Owners, and contribute to code reviews and software quality.

Responsibilities

• Develop and maintain .NET-based application components

• Implement and enhance the frontend in React

• Analyze, maintain, and refactor existing and legacy code

• Design and develop system architecture

• Implement new functionality based on technical and business documentation

• Optimize application performance and resolve technical issues

• Debug, profile, and analyze system performance

• Collaborate with analysts, testers, and Product Owners in Scrum

• Participate in code reviews and quality-improvement activities

• Share knowledge and support less experienced team members

Requirements

• Minimum 5 years of experience building .NET applications

• Minimum 3 years of experience building React applications

• Very good knowledge: C#, .NET Framework, .NET Standard, .NET Core, .NET

• Practical knowledge of React 18+

• Experience with debugging, profiling, and performance analysis

• Knowledge of DDD (Domain-Driven Design), Clean Code, SOLID

• Knowledge of architectural patterns

• Experience designing asynchronous communication

• Very good knowledge of T-SQL

• Practical knowledge of SQL Server Management Studio (SSMS)

• Fluent command of Visual Studio

• Polish at near-native level

• English at least B2

Benefits

• Stable employment under B2B contract

• Company laptop and monitor

• Co-financing for private medical care

• Multisport sports card

• Career and progress discussions twice per year

• Transparent communication with employees

• Opportunity to contribute to organizational development

• Knowledge sharing and participation in the internal Academy

• English language learning

• Strong, mostly senior team

• Work with Jira, Confluence, Bitbucket

• Support for integrations and team activities