Allegro is home to 1,700+ tech experts, but our team? We are the driving force behind the Basket Building domain. We are designing and developing innovative solutions that help customers discover and easily use the best discounts during their shopping journey.

We are not just building standard features. We are inventing and creating a complex solution that hiper-personalizes offers for our buyers. By collaborating closely with ML specialists, we are building a tool that analyzes user preferences and cart contents in real-time to select the most relevant and attractive discounts, ensuring our customers always get the most value out of their shopping. If you love conceptual, greenfield work, want to leverage AI in your daily tasks, and prefer building from scratch over maintaining legacy code, you’re in the right place.

The Role

We are looking for a Software Engineer with a strong background in Kotlin and backend architecture who is also eager to grow and expand their skills.

You will join a cross-functional team (backend, frontend, mobile) working on the shopping journey and cart experience. While your core focus will be on the backend, your willingness to bridge the gap to the frontend will be highly valued as we build these tools from the ground up and collaborate closely with our ML experts.

  • Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work.
  • The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost):
  • PLN 14 200 - 20 200
  • Annual bonus based on your annual performance and company results.
  • Our team is based in Poznań.

What’s in it for you:

  • Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms).
  • A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories.
  • A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers).
  • English classes that we pay for related to the specific nature of your job.
  • A training budget, inter-team tourism (see more here), hackathons, and an internal learning platform where you will find multiple trainings. 
  • An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. 
  • Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy.

We are looking for people who:

  • Have a strong background coding in Kotlin (and backend architectures) and are willing to expand their scope by actively learning and writing code in TypeScript and React.
  • Want to build tools that directly personalize the shopping experience, ensuring millions of users can seamlessly access the best deals and promos tailored to them.
  • Enjoy conceptual work and building things from scratch, preferring to design new architectures and solutions over maintaining legacy systems.
  • Can collaborate effectively with ML experts to build complex tools that analyze historical data and shopping carts in real-time to make dynamic decisions.
  • Enjoy working in a diverse, cross-area team (backend, frontend, mobile) to deliver cohesive, end-to-end solutions.
  • Know English and Polish at a communicative level (at least B2) and are comfortable collaborating in a distributed team environment.

Allegro is the most popular Polish shopping destination with about 14 million users monthly and over 750 thousand items sold on the platform daily. We are most of all a marketplace where companies can sell their products but auctions are available as well. In 2015 we started our own e-tail operations and they are constantly growing, adding more complexity and scale to our platform. Allegro is also getting more and more mobile, with over 47 million mobile searches monthly and over 130 thousand items bought on mobile devices every day.

Making a site like this work requires a lot of engineering and as the site grows, we learn and adopt new technologies. What started out as a monolithic application written in PHP is now migrating towards an ecosystem of loosely coupled microservices written in Java and other JVM languages running in the cloud. Creating a scalable and distributed system at this scale brings about many challenges which make our work interesting.