Senior Fullstack Engineer

Your new company 

You will join a global technology organization that designs and delivers advanced retail solutions used by millions of consumers worldwide. The company focuses on modernizing and digitizing the retail experience for major international fuel and grocery brands. You will work in a highly collaborative, multicultural environment that values innovation, quality, and continuous improvement. The office is located in Katowice, operating in a hybrid model. 

Your new role 

• Designing and developing scalable, high‑performance solutions for global retail clients
• Building and maintaining a modern technology stack based on microservices and message‑driven architecture
• Investigating and resolving defects and performance issues
• Estimating new features and researching emerging technologies
• Collaborating with product teams, regional project teams, and occasionally with customers
• Implementing user stories end‑to‑end (design, development, testing)
• Participating in CI/CD processes, version control, and release management
• Testing solutions using internal tools and retail hardware
• Supporting troubleshooting and problem management activities

What you'll need to succeed 

• 4-6 years of experience in software engineering
• Strong proficiency in C# / .NET Core and React
• Solid understanding of HTML5, CSS, XML, REST APIs
• Experience with MS SQL, Azure SQL, NoSQL (e.g., CouchDB)
• Hands‑on experience with Docker, Redis, RabbitMQ
• Familiarity with microservices and message‑based systems
• Experience with the full software development lifecycle, CI/CD, unit testing, and version control
• Good command of spoken and written English
• Degree in Computer Science, IT systems, or a related field

• Node.js, TypeScript, Angular, Kendo UI
• Jenkins, Kubernetes
• Experience with SSO/OAuth/OIDC
• Windows Controls development

What you'll get in return 

• A supportive and collaborative team environment
• Flexible employment model (Employment Contract or B2B)
• Private medical care with family options
• Life and accident insurance
• Multisport card
• Cafeteria program
• Access to mentoring and e‑learning platforms
• Participation in IT events and conferences
• International projects and multicultural work environment
• Casual dress code and convenient parking at the office

What you need to do now 

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.