About the job:

Our team builds backend services and data pipelines that help sellers dispatch orders on time, calculate shipment-performance scores, and connect tracking numbers to orders. We also own a few frontend components built with React. Our work spans Kotlin/JVM services, Scala/Spark data processing, and BigQuery queries and reports.

We’re looking for a junior software engineer who’s ready to contribute, learn, and grow with the team. You’ll take ownership of well-scoped tasks, with support from experienced engineers as you work across backend, data, and frontend systems.

Build useful things: Turn product and business needs into tested, maintainable software, working closely with the team.
Learn how our systems fit together: Develop your skills in Kotlin and JVM technologies, contribute to our services and React components, and learn the Scala, Spark, and BigQuery tools used in our data work.
Help keep things reliable: Write tests, take part in code reviews, and learn how we monitor and support the systems we build. You won’t join on-duty shifts when you first start. We’ll introduce them after onboarding, once you and the team agree you’re ready.
Work with modern tools: We use industry-standard AI coding assistants to support our development workflows.

Important things for you:

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 gross 11 200 - 15 250
- Annual bonus based on your annual performance and company results.
Our team is based in Poznań.

We are looking for someone who:

Has experience programming in Kotlin or Java and is motivated to develop their Kotlin skills in a production environment.
Is open to working across different technologies, including frontend development. You don’t need to be a React expert.
Cares about code quality, welcomes constructive code reviews, and enjoys discussing sound engineering practices.
Communicates clearly with teammates and stakeholders, and is ready to take ownership of well-scoped tasks - from clarifying the need and implementing a solution to helping monitor it after release, with support from the team.
Has a basic understanding of microservices and is interested in learning how to build reliable, scalable systems.
Is curious about data engineering and willing to learn tools such as Scala, Spark, and BigQuery.
Has professional working proficiency in English (at least B2 level).

Nice-to-have:

Experience writing SQL queries in BigQuery for analysis or reporting.
Familiarity with cloud-based services.

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 benefits here.

#goodtobehere means that:

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!

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