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Salary
≈ $40k – $71k per year (Estimated)
Location
In office (Toruń)
Seniority
Middle

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Oct 16, 2026.

Overview
Company
Impact
Profile match
Allegro is the largest e-commerce marketplace in Poland, operated from Poznań, connecting around 20 million monthly users with more than 160,000 merchant partners across all key product categories. The group, whose Luxembourg-incorporated parent is listed on the Warsaw Stock Exchange, also runs Allegro Pay, the Allegro Smart delivery programme, Ceneo and eBilet, and has expanded to Czechia, Slovakia and Hungary with about 7,000 people across Central and Eastern Europe. It hires Java, Kotlin, Scala and .NET software engineers, data scientists, product managers and analysts alongside partner success, logistics, dispatch and warehouse staff in Warsaw, Poznań, Kraków and regional delivery hubs.
Backed by MidEuropa

About the job:

  • Massive Scale: Design, build, and optimize systems that handle thousands of requests per minute. This is high-availability, high-performance engineering in practice.

  • Modern Tech Stack: Work with a world-class, cloud-native environment. Our core technologies include Kotlin, Spring, Kafka, Kubernetes and GCP Agent Platform. We're not shy when it comes to ML too :)

  • True Ownership & Autonomy: We live by a "you build it, you run it" philosophy. You'll join an agile, autonomous team with full ownership of your microservices, from design to deployment.

  • Complex Challenges: From distributed systems and data streaming to algorithmic optimization, you'll tackle the complex backend problems that power a massive, real-time marketplace.

In our domain, we focus on solutions centered around the product catalogue, a critical component within Allegro's core partner journey and a key driver in the professionalization of the entire platform. We approach quality with particular diligence to ensure stability, scalability and simplicity of the offer listing process. Moreover, product catalogue data quality is crucial for correctness of internal Allegro processes. We work in cross-functional teams where various technologies collaborate closely to deliver the highest quality solutions to our users. Our teams consist of backend engineers and frontend specialists supported by project managers, UX-designers and data scientists.

Important things for you:

  • Flexible working hours in an office first model (4/1) that depend on you and your team. Starting later or finishing earlier? No problem! Work hours keep pace with our lifestyles and can start between 7 a.m. and 10 a.m.

  • The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost):

    • PLN 14 600 - 20 825

    • Annual bonus (depending on your annual assessment and the company's results)

  • Our team is based in Toruń.

We are looking for people who:

  • Have commercial experience coding in Kotlin or Java (with an eagerness to master Kotlin for our new services);

  • Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results;

  • Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews;

  • Can translate user requirements into effective solutions, paired with an AI-open mindset;

  • Want to constantly develop and update their knowledge;

  • Know English at least at B2 level.

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.

And that's just the beginning! You can read more about the benefitshere.

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