Fullstack Developer (C#) - Mid/Senior

Fullstack Developer (C#) – Mid/Senior 

Location: Wrocław / surrounding areas (Poland) 

Start: ASAP 

Engagement Type: B2B Contract / Long term assignment 

We’re looking for experienced Fullstack Developers to join multiple agile development teams at a leading global provider of cloud-based communication and collaboration platforms. These teams are responsible for delivering high-performance, scalable solutions used in real-time messaging, voice, and video applications across the globe. 

About the Projects 

You will work on core components of a widely adopted telecommunication product suite, contributing to both backend and frontend development. The systems are built for performance, stability, and user experience at scale. Team allocation and project details will be matched to your strengths and discussed during the interview process. 

What You'll Be Doing 

• Design and develop new features in a modern fullstack environment

• Work closely with product and UX teams to build intuitive user interfaces

• Optimize application performance and scalability 

• Contribute to architectural decisions and code reviews 

• Collaborate in a fast-paced agile environment with CI/CD workflows 

Requirements

• At least 2 years of experience in fullstack development 

• Proficiency in JavaScript/TypeScript with frameworks like Vue.js, AngularJS, or React

• Solid backend experience with C# and Node.js 

• Practical knowledge of AWS, Kubernetes, PostgreSQL, and Redis 

• Strong communication skills in English (B2+) – daily communication in English is essential 

Nice to Have 

• Deep experience with AWS and cloud-native architecture 

• Understanding of DevOps practices and performance tuning 

Recruitment Process 

• Up to 2 interview stages with the client 

• May include a live coding exercise 

Work with modern tech, solve real-world scalability challenges, and build products that support millions of users. If you're ready for your next challenge in a fast-moving, tech-driven environment — we'd love to hear from you.