Junior C# Developer (REST API)

Securiti
Securiti

Software Engineering

Warsaw, Poland

Posted on Jun 12, 2026

Veeam is the Data and AI Trust Company, specializing in helping organizations ensure their data and AI are fully understood, secured, and resilient to enable the acceleration of safe AI at scale. As the market leader in both data resilience and data security posture management, Veeam is built for the convergence of identity, data, security, and AI risk. Headquartered in Seattle with offices in more than 30 countries, Veeam protects over 550,000 customers worldwide, who trust Veeam to keep their businesses running. Join us as we go fearlessly forward together, growing, learning, and making a real impact for some of the world’s biggest brands.

About the Role

As a Junior C# Developer, you will join a team responsible for the backend of the WebUI application and the REST API that powers our core product, Veeam Backup & Replication.

This is a complex, feature-rich product, and the API plays a critical role in enabling full-scale management across all its components. In this team, you will not only contribute to building and improving the API and core modules, but also help enhancing development efficiency.

You will collaborate closely with experienced engineers, and contribute to continuously improving how we build and scale our product.

What You’ll Do

  • Design and develop REST APIs for Veeam Backup & Replication
  • Development of new products and support of existing functionality
  • Participation and individual development of components and the whole architecture of the product

Technologies we work with:

C#, .Net 10, REST API, Windows/Linux, MS SQL, PostgreSQL, Multithreading, AI tools

What You’ll Bring

  • Proficiency in C# and a deep understanding of the .NET platform, data structures, and algorithms
  • Possession of the principles of software design and development
  • Experience with Windows and/or Linux environments
  • English proficiency for daily communication within international teams

What You’ll Get

  • 26 paid days off annually, plus 4 extra global VeeaMe Days for self-care and 24 paid volunteer hours annually through Veeam Cares
  • Paid parental, maternity, and paternity leave
  • Fully covered family medical plan, dental, rehab, and vaccinations
  • Life, critical illness, and disability insurance
  • Employer pension contribution via PPK
  • Monthly Edenred allowance of 450 PLN for meals
  • MultiSport card fully covered by Veeam, giving access to sports facilities nationwide
  • Up to 12 free therapy sessions annually, plus legal and financial advice
  • Opportunities to learn and grow through on-demand libraries (LinkedIn Learning, O’Reilly), mentoring, workshops and learning events like our annual Global Day of Learning

Please note: If the applicant is permanently present outside of Poland, Veeam reserves the right to refuse to consider the application for a job.

#LI-TT1

Veeam Software is an equal opportunity employer and does not tolerate discrimination in any form on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state or local law. All your information will be kept confidential.

Personal data collected during the recruitment process will be processed in accordance with our Recruiting Privacy Notice, which explains how your information is collected, used, and handled in connection with hiring activities. By applying for this position, you consent to this processing.

By submitting your application, you confirm that the information provided, including any supporting documents, is complete and accurate to the best of your knowledge. Any misrepresentation, omission, or falsification may result in disqualification from consideration or, if discovered after employment begins, termination of employment.