Backend Developer .NET (Polish required)

Location Warsaw, Mokotów
Salary 8 000,00 - 13 000,00 net/month (B2B)
Employment type Full-time (permanent or contract)
Offer description

LeanCode is a software studio based in Warsaw (Poland) with a strong focus on building great products that matter. We are a team of 35 skillful developers, UX designers, and product owners. Our mission is to solve real-life problems using cutting-edge technologies.


We work for companies from all over the world (at the moment that is: Poland, Germany, UK, the USA, Australia, and China). We join forces with the clients at the very early stage of the process. Thanks to that we have a substantial impact on not only the organizational aspects of the project but also on how the developed product actually works and looks like. This approach requires very close cooperation with the clients, including frequent workshops and day-to-day meetings with them.


We are currently looking for Backend Developer (.NET Core), a team player who cares not only about getting things done but also about software architecture, code quality and maintainability. We’re looking for a mid-level developer, but we welcome specialists at different levels of experience. If you find this offer interesting, don’t hesitate to send us your résumé!


There’s a catch in this offer though… You’ll probably have to learn how to play table soccer or table tennis if you join us ;)


What will you do (or learn along the way)?

  • Design systems using Domain Driven Design;
  • Design systems using event-based architecture, with strong CQRS approach;
  • Design cloud infrastructure (Azure, GCP);
  • Design systems that leverage both relational and and non-relational (MongoDB, RavenDB, CosmosDB, Firestore) databases;
  • Automate cloud infrastructure using cutting-edge IaC technologies like Terraform;
  • Work on our application framework, available publicly on GitHub;
  • Deploy and maintain applications using container technologies like Docker & Kubernetes;
  • You will have the ability to create internal tools in different technologies like Rust, Go or other;
  • Design CI/CD processes.
Required skills
  • 2+ years of experience in designing, implementing and supporting backend applications;
  • Deep knowledge of C# & .NET Core and related technologies (ASP.NET Core, EFCore);
  • Experience in relational (PostgreSQL, SQL Server) databases;
  • Ability to constantly learn new technologies;
  • Good command of English (written and spoken);
  • Great command of Polish (written and spoken C1) - obligatorily.


We give extra points for:

  • Proactive approach and community involvement;
  • Analytical skills, a strong business focus;
  • Linux knowledge;
  • Experience in cloud-based systems and infrastructure as code;
  • Experience with CI/CD services;
  • Experience in designing RESTful & GraphQL-based APIs;
  • Knowledge of other technologies, mainly React/TypeScript & Dart/Flutter;
  • DevOps mindset.
  • Work at our HQ (Warsaw, Służew metro station) or remotely;
  • Comfortable, spacious office with a large backyard (we have frequent BBQ parties between lockdowns);
  • Specialty coffee from a local roastery (yes, we are coffee freaks…);
  • Knowledge sharing during weekly Flutter team meetings;
  • Frequent technical talks from various areas of software development (system architecture, Domain Driven Design, mobile & frontend trends, UX);
  • We play table soccer.


We offer a transparent recruitment process:

  1. Apply via the form located below. 
  2. Get through our 1-st review during which you will be asked to solve interesting case studies. 
  3. Join the call with our CEO/CTO to solve additional case studies during which you can show off your structured analytical thinking and afterward discuss the potential cooperation and your future development.
  4. Welcome on board to one of probably the fastest growing Digital Product Studios in Poland.
Last modified Wednesday, December 8, 2021