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, and Kubernetes. 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 department, we focus on online payments. We are building an ecosystem that enables secure, easy, fast, and convenient payments for buyers. We also take care of the seller's side, ensuring they can issue quick refunds or pay their Allegro billing. We provide a range of payment solutions, from bank transfers and BLIK to card payments, Apple Pay, Google Pay, installment products, and many others. In our team, we are directly responsible for integration with payment operators such as PayU and P24, and we cooperate with entities such as BLIK, Visa, and Mastercard.

If you want to find out which method buyers use most often, what their biggest problem is when paying, how to securely store payment card data, or how Apple Pay, Google Pay, and BLIK without a code work behind the scenes, join us.

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 benefits here.

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 11 200 - 15 250

Annual bonus based on your annual performance and company results.

Our team is based in Poznań.

You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA.

You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create.

You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job.

You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support).

You will create solutions that will be used (and loved!) by your friends, family and millions of our customers.

You will meet the Allegro Scale, which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning.

You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about!

Send us your CV and… see you at Allegro!

Code in Kotlin or Java and are eager to master Kotlin by taking part in greenfield projects

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 value high-quality code reviews and engage in substantive discussions on software engineering best practices;

Can look for effective solutions to the requirements set by users;

Want to constantly develop and update their knowledge;

Know English at at least B2 level;

Have the nature of an explorer. You are not satisfied with superficial answers - you like to "break a problem down into its prime factors" until you understand how something works underneath.

Treat learning as a process, not an unpleasant chore. The world of payments is changing dynamically, and you want to stay up to date with every innovation.

Are a "driver," not a passenger. See room for improvement? You don't wait for a command; you take the initiative and act.