FullStack developer - .net react - Remote

We are Looking for a skilled Fullstack . net Developers for a fully remote B2B contract . Main responsibility will be developing  and delivering  high-quality software solutions, collaborate with stakeholders, and drive technical excellence. The ideal candidate will have expertise in cloud-native technologies, agile development, and modern application frameworks.

Location : Poland - Remote

Language : Polish and English

Duration- 12 months

Start: ASAP  or Jan 2026

 Key Responsibilities 

• Participate in the full software development lifecycle: design, analysis, prototyping, development, testing, and support 

• Collaborate with cross-functional teams in an Agile environment 

• Contribute to backend development and cloud-based enterprise applications 

• Apply design patterns, write unit tests, and optimize performance 

 Tech Stack & Skills 

Must-Have: 

• Solid experience with C# and .NET 

• Proficiency in SQL and relational databases 

• Object-Oriented Programming (C# / Java) 

• Experience in enterprise software development 

• Strong communication skills and ability to work independently 

• Agile development experience 

Nice-to-Have: 

• Experience with Payroll systems or HCM applications 

• Familiarity with Azure, Kubernetes, Kafka 

• Knowledge of modern web technologies (HTML, CSS3, JSON, WCF) 

• Exposure to JavaScript frameworks (React, Angular) 

• Experience with fintech or payments software