Klarstein has been designing, producing, and selling products in the areas of kitchen appliances, garden & living, sports and consumer electronics since 2005 and is now one of Europe’s largest digital companies including over 400 employees around the globe. We love brands and products! 

Salary from 2800 €/gross month (depends on experience) (Hybrid)

As a Senior Software Engineer – Azure/.NET, you'll develop and maintain scalable, cloud-native solutions across our .NET and PHP-based e-commerce landscape. You'll work on complex backend systems, contribute to technical design decisions, and help modernize our platforms using modern engineering practices and Microsoft Azure technologies. Working closely with Software Engineers, DevOps, QA, and Product, you'll help ensure our solutions are reliable, secure, maintainable, and aligned with business needs.

What you will do:   

• Design, develop, and maintain scalable backend services and cloud-native solutions using C#/.NET and Microsoft Azure.
• Contribute to technical design decisions, proof of concepts, technical investigations, and modernization/refactoring initiatives to improve platform performance, maintainability, and reliability.
• Collaborate across .NET, PHP, DevOps, QA, Product, and external teams, translating business requirements into practical and scalable technical solutions.
• Contribute to code reviews, technical discussions, and knowledge sharing, helping maintain high engineering standards and supporting the continuous improvement of development practices.
• Apply engineering best practices in testing, security, observability, and operational reliability, including troubleshooting production issues, supporting root-cause analysis, and maintaining technical documentation.
• Promote and use AI-assisted engineering practices to improve developer productivity and software quality.

What we are looking for:  

• 5+ years of backend development experience with C# and .NET (ASP.NET Core, Entity Framework Core, REST APIs, OpenAPI/Swagger), with a strong understanding of scalable and resilient software architecture.
• Hands-on experience designing and developing cloud-native solutions on Microsoft Azure, including Service Bus, Event Grid, Azure Functions, App Service, Key Vault, and Application Insights.
• Experience with secure cloud solutions, automated deployments, CI/CD, Infrastructure as Code (Terraform preferred), and observability practices.
• Experience with relational and NoSQL databases (SQL Server, Cosmos DB, MongoDB) and integrating .NET services with PHP applications and third-party or enterprise platforms (e.g. SAP, REST/SOAP APIs).
• Experience working in Agile, cross-functional engineering teams, contributing to code reviews and engineering best practices.
• Excellent written and spoken English.

Nice to have:   

• Familiarity with AI-assisted development tools (GitHub Copilot, Claude, Cursor, Windsurf) and using them to improve development, testing, and documentation workflows.
• Good understanding of clean architecture and domain-driven design principles.
• Direct experience integrating with SAP or comparable large-scale enterprise platforms.

What we offer:

• Extra vacation days for long-term commitment – We appreciate your loyalty! Enjoy extra vacation days based on your years of service with us.
• 30% employee discount – Enjoy an exclusive 30% discount on products across our brands. From kitchen appliances and sound systems to fitness equipment and garden furniture, there’s something for everyone!
• Sick days – Feeling under the weather? Take paid sick days to recover without using your annual leave.
• MultiSport card – Stay active your way with access to hundreds of gyms, swimming pools, sports, wellness centres, and classes such as yoga or dance across Slovakia.
• Learning & development opportunities – Ready to level up? Expand your professional expertise, strengthen your people management skills or explore something new. Make the most of our courses, books, online and offline company libraries to support your professional and personal growth.
• Language courses – Improve your English, German or Slovak with professional tutors. With online lessons available, you can learn from wherever you are.
• Team-building events – Get to know your colleagues beyond the workplace at our Family Day, and let loose at our Summer or Christmas parties. One thing is for sure: we know how to have fun!
• Candy & Coffee Bar – Keep your energy up with complimentary sweets, fresh fruit, sparkling water, tea and coffee whenever you need a little pick-me-up.
• Bonuses for special occasions – Life is about more than work, and we’re happy to celebrate your milestones with you. Enjoy special bonuses for important occasions, such as getting married or welcoming a new family member.
• Slovnaft BAjk – Prefer cycling to work? We’ll contribute to your Slovnaft BAjk bike-sharing subscription, making your commute around Bratislava easier and greener.
• Bike facilities & chill zone – Cycle to work? We have a dedicated place to leave your bike. When you need a break, recharge in our chill zone or relax with our massage chair.

Who we are: 

KLARSTEIN creates, builds and scales consumer brands globally. Within the last 17 years we have created and built own e-commerce brand KLARSTEIN.

We plan to grow even further and reinvest in world-class logistics and fulfilment, innovative digital marketing, e-commerce, marketplace development and other sales channels. To fuel this growth, we are looking for talented and highly motivated colleagues like you to join us in shaping the DNA of KLARSTEIN.

JOIN US!