.Net Developer

About Atos Group

Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. € 10 billion, operating in 67 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris.

The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

Location: Olsztyn (client site)

We are looking for a skilled and proactive .NET Developer who will not only develop applications but also help build the team’s development competencies and contribute to shaping its organization, standards, and engineering culture.

You will work with modern cloud technologies, containerized environments, and a .NET based application stack. A strong mentoring mindset and technical leadership approach are key to this role.

Responsibilities

• Design, develop, and maintain applications using C#:
• Frontend: .NET Blazor
• Backend: ASP.NET
• Design and optimize SQL structures, migrations, and performance in PostgreSQL.
• Build, containerize, and deploy services using Docker and manage them through Kubernetes.
• Develop and maintain automation and CI/CD pipelines (Ansible; optionally GitLab CI/CD or Azure DevOps Pipelines).
• Ensure high-quality engineering practices: unit tests, integration tests, end‑to‑end tests, performance testing, and security testing.
• Take an active role in mentoring team members, conducting code reviews, knowledge‑sharing sessions, and pair programming.
• Support the organizational development of the team: improving processes, standards
• Collaborate with stakeholders, architects, and cross‑functional teams to drive technical improvements and deliver business value.

Our Technology Stack

• Cloud: Microsoft Azure
• Operating Systems: Linux, Windows
• Database: PostgreSQL
• Programming Language: C# / .NET
• Frontend: Blazor
• Backend: ASP.NET
• Containers & Orchestration: Docker, Kubernetes
• Automation / CI/CD: Ansible, optionally GitLab CI/CD or Azure DevOps Pipelines
• Testing: unit, integration, e2e, performance, security (tooling selected based on project needs)

Requirements

• 4–5+ years of commercial experience in C#/.NET development.
• Strong hands‑on experience with ASP.NET and Blazor
• Solid knowledge of PostgreSQL
• Practical experience with Docker and Kubernetes.
• Experience building or maintaining CI/CD pipelines and automation using Ansible; (GitLab CI/CD/Azure DevOps is a plus).
• Understanding of testing strategies and quality assurance.
• Technical maturity: clean coding standards, SOLID, code reviews, architectural thinking.
• Willingness and ability to mentor others and support skill development within the team.
• Proactive approach, accountability, strong communication skills.

What’s in it for you? 

• Wellbeing programs & work-life balance - integration and passion-sharing events
• Private medical and dental care
• Benefits platform – shopping, cinema, sport etc.
• Co-funding of sports activities, e.g. Multisport & OK system cards, b-active program
• Courses and certifications e.g. Google Cloud, AWS, ITIL
• Conferences and Expert Communities
• Gift packages for special occasions: Easter, Christmas, Children’s Day
• Appreciation for seniority: additional days off, Atos Jubilee gifts
• Hybrid working mode (max. 2 times per month based on a location)
• Charity and eco initiatives

What happens next?

• Quick conversation with HR
• Interview with a Manager/IT expert/project representative

The company follows an equal opportunity policy and does not permit any form of discrimination based on gender, disability, age, origin, sexual orientation, or any other protected characteristic. All employment decisions are made solely on the basis of competence and qualifications.

Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all.

Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment. 

Choose your future. Choose Atos.