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 800 employees around the globe. We love brands and products!
Salary from 2800 €/gross month (depends on experience)
As Staff Engineer / Tech Lead Azure/.NET, you'll own the technical direction of our .NET and Azure platforms - leading the design of scalable, cloud-native solutions across a landscape that spans .NET and PHP-based e-commerce systems. You'll split your time between hands-on architecture work and technical leadership: driving key engineering decisions, mentoring engineers, and pushing the modernization of our platforms forward. You'll work closely with Software Engineers, DevOps, QA, and Product, and your decisions will directly shape engineering excellence, reliability, and developer productivity at Klarstein.
What you will do:
- Own the architecture and technical direction of critical services, leading the design and implementation of complex backend and cloud-native solutions
- Lead technical investigations, proof of concepts, and modernization/refactoring strategies — identifying technical debt and driving pragmatic long-term platform improvements
- Collaborate across .NET, PHP, DevOps, QA, Product, and external teams, translating business requirements into scalable technical solutions
- Mentor engineers through design discussions, code reviews, pair programming, and technical coaching
- Drive engineering excellence — best practices in testing, security, observability, and operational reliability, including incident/root-cause support and contributing to engineering standards and documentation
- Promote AI-assisted engineering practices to improve developer productivity and software quality
What we are looking for:
- 8+ years of professional backend development experience with C# and the .NET ecosystem (ASP.NET Core, .NET 8/10, Entity Framework Core, REST APIs, OpenAPI/Swagger), combined with a strong architectural mindset for designing scalable, resilient distributed systems
- Proven experience designing cloud-native systems on Microsoft Azure — including microservices, event-driven architecture, asynchronous messaging, and API-first design — with hands-on use of core Azure services (e.g. Service Bus, Event Grid, Azure Functions, App Services, Key Vault, Application Insights)
- Experience designing secure, cost-optimized cloud architectures (networking, identity/access management, application security), and building production systems with CI/CD, Infrastructure as Code (Terraform preferred), and observability practices
- Strong experience with relational and NoSQL databases (SQL Server, Cosmos DB, MongoDB) and working across heterogeneous systems — integrating .NET services, PHP applications, and third-party/enterprise platforms (e.g. SAP, REST/SOAP APIs)
- Track record mentoring engineers, leading technical reviews, and driving engineering standards across teams, ideally within Agile, cross-functional environments (Product, DevOps, QA, architects)
- Excellent written and spoken English
- Familiarity with AI-assisted development tools (GitHub Copilot, Claude, Cursor, Windsurf) and using them to improve development, testing, and documentation workflows
- Deep grounding in clean architecture / domain-driven design principles
- Direct experience integrating with SAP or comparable large-scale enterprise platforms
What we offer:
- Teambuildings – Meet your colleagues in informal setting like Family day and let yourself loose during our Christmas and Summer parties. One thing we can assure you of is that in BBG we know how to party
- Coffee bar – Help yourself to sweets and fresh fruit, sparkling water, tea or coffee to the heart’s content
- Employee discounts – Save 30% on anything from our brands (like Klarstein or Capital Sports). Kitchen appliances, top-notch sound systems, garden furniture ... you will surely choose something from 2500 products we have on offer
- Multisport card – Free access to hundreds of sport centres, wellness centres, gyms or classes (yoga, dance, etc.) all around the country. Almost completely paid for by us
- Bonuses for special occasions – We realize, that work is only a part of your life, and will support you on your personal journey as well. And thus, will give you a special bonus on occasions
- Sick days – On top of an annual leave, you have a few paid sick days you can use to recover
- Slovnaft BAjk – If you want to commute by bicycle, we will chip in on your Slovnaft BAjk subscription (bike sharing in Bratislava)
- A wide range of courses – Increase your professional expertise, get hang of people skills or anything else that will help your professional (and personal) life. Courses, books or online library is on your fingertips
- English/German/Slovak lessons – Learn new language or step up your game on one of the professional courses. You can join a lessons with a professional lector online from anywhere
- We offer also place you can leave your bike and after that you can chill in our chill zone, or just took a massage from 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 THE TEAM!
Become a member of one of Europe's leading ecommerce companies and fill out the online application below. We are looking forward to your application!
KLARSTEIN Business Services a.s.
Grosslingova 6-8
81109 Bratislava, Slovakia
Skills Required
- 8+ years of professional backend development experience with C# and the .NET ecosystem
- Experience with ASP.NET Core, .NET, Entity Framework Core, REST APIs, and OpenAPI/Swagger
- Experience designing scalable, resilient distributed systems
- Experience designing cloud-native systems on Microsoft Azure
- Experience with microservices, event-driven architecture, asynchronous messaging, and API-first design
- Hands-on experience with Azure Service Bus, Event Grid, Functions, App Services, Key Vault, and Application Insights
- Experience designing secure and cost-optimized cloud architectures, including networking, identity and access management, and application security
- Experience building production systems with CI/CD, Infrastructure as Code, and observability practices
- Experience with Terraform
- Strong experience with SQL Server, Cosmos DB, and MongoDB
- Experience integrating .NET services, PHP applications, and third-party or enterprise platforms
- Experience with SAP or REST/SOAP APIs
- Experience mentoring engineers, leading technical reviews, and driving engineering standards
- Experience working in Agile, cross-functional environments
- Excellent written and spoken English
- Familiarity with AI-assisted development tools such as GitHub Copilot, Claude, Cursor, or Windsurf
- Knowledge of clean architecture and domain-driven design principles
- Direct experience integrating with SAP or comparable enterprise platforms
What We Do
Berlin Brands Group (BBG) creates, builds, buys and scales consumer brands globally since 2005. We distribute more than 4,800 products to consumers in 28 countries worldwide. In 2021, we have achieved the unicorn level making us one of Europe’s largest digital companies. Our products are sold across more than 100 channels including direct to consumer e-commerce, online marketplaces and wholesale. Our passion lies in kitchen appliances, garden & living, sports and HiFi. Our largest and best-known brands are Klarstein, auna, blumfeldt and Capital Sports. These are just a few examples within our portfolio of over 56 consumer product brands that is rapidly expanding as we welcome new brands to the group. BBG is now over 1,000 employees strong, working in locations spanning the globe – from Europe, UK, USA, to Asia. Our global headquarters are in Berlin, Germany and we are now rapidly expanding our business. To fuel this growth, we are looking for talented and motivated colleagues like you to join us in shaping the DNA of BBG. OUR BRANDS Klarstein - https://www.klarstein.de/ Capital Sports - https://www.capitalsports.de/ auna - https://www.auna.de/ blumfeldt - https://www.blumfeldt.de/ Numan - https://www.numanaudio.com
