Senior Fullstack Developer (.NET & React)

Ignite innovation in software development - shape the future with cutting-edge .NET and React solutions!

Warsaw or Gdańsk-based opportunity with hybrid work model (1day/ week in the office).

As a Senior Fullstack Developer, you will be working for our client, a leading technology innovator. You’ll contribute to building sophisticated applications by leveraging your expertise in C# and React, helping to deliver impactful digital solutions. Join us and propel your career into new dimensions of success and innovation.

Your main responsibilities:

• Develop high-quality software using C# (.Net Framework, .Net Standard, .Net Core) in accordance with technical documentation.
• Implement frontend features and interfaces with React (versions 18+).
• Analyze and enhance existing codebases, including legacy systems.
• Design and develop scalable architecture solutions.
• Collaborate closely with cross-functional teams—testers, analysts, and product owners—within agile (SCRUM) environments.
• Debug, profile, and optimize application performance.
• Apply best practices such as DDD, CleanCode, and SOLID principles.
• Work with SQL Server and TSQL using SQL Management Studio.
• Utilize Visual Studio for development processes.

It is a strong plus if you have:

• Experience in creating views for mobile applications.
• Background developing solutions for the financial sector.
• Knowledge of test automation tools like Postman or PlayWright.
• Familiarity with WCAG standards.

You should have:

• Minimum 5 years of software development experience in .NET applications.
• At least 3 years working with React.
• Proficiency in Polish and a communicative level of English (min. B2).
• Well-developed analytical thinking abilities.
• Excellent organizational skills and attention to quality and deadlines.
• Secondary education, preferably higher education in computer science or related fields.

Language required for the role:

• Polish (fluent),
• English (communicative).

Eligibility for the role: Only candidates with existing legal right to work in the European Union will be considered for this role.

#MAKEYourCareerBETTER

Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.