Backend Engineer with analytical skills
- Remote
- Poznań, Poland
- PLN 16,000 - PLN 22,000 per month
- Kotlin
Job description
The cooperation which stayed from startup to full-blown profitable product team!
Be a part of the biggest e‑commerce platform in Poland and one of most recognizable in Europe with almost 200 mln MAU, which exists for over 20 years.
Our mission is to deliver the best possible customer experience across all platforms: web and mobile. From the moment customers visit our site to browsing, searching, comparing listings, purchasing, and post-purchase services, we ensure seamless, fast, and reliable operations.
What we offer
Salary: 16 000 - 22 000 PLN net on B2B - depending on your experience
Growth in DDD and event-driven architecture, built into how our services work, plus Kotlin, BigQuery, microservices and AI tools in daily work
Remote work with office access in Poznań, Warsaw, Kraków and Toruń. We ask for an on-site visit to Poznań or Warsaw 1–2 times per quarter.
Job requirements
Have solid commercial experience coding in Kotlin or Java (and want to master Kotlin for new services)
Build scalable microservices and RESTful APIs with Spring Boot
Write advanced SQL on their own. This is the core analytical skill. Experience with BigQuery is a strong plus; the rest of GCP we can teach
Have built dashboards and can present results so the right number is obvious at a glance
Think like engineers, not only programmers: comfortable across backend, some frontend, and networking basics
Take ownership: we’ll show you how the platform works, then expect you to find answers and propose solutions yourself
Use AI tools (e.g., Copilot) daily for coding, debugging, and research
Communicate effectively in Polish and English (at least B2)
What you’ll do
Design, build, and maintain Kotlin/Java microservices across the full lifecycle, from development through production support
Pull the data behind project KPIs such as GMV, transactions, and returns
Build dashboards at the end of a project that show its real impact (for example, after launching listing grading: did time-on-page drop, and how did conversion change?)
Turn numbers into a story the business and other teams can follow
Work with analysts, business stakeholders, and, as the roadmap grows, other product teams across the platform
Give honest feedback: your mixed skill set should help the team see what could be done better
What does the recruitment process look like?
Video interview with our People Team.
Technical interview with an engineer from the project (about 1h, no live coding), including the analytical part.
Short final check with Team Leader (20–30 min).
The decision, after which we can say “welcome on board”.
or
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Perks and benefits
Paid time off and sick days also for B2B contracts
Education & Training Budget
Remote first approach with flexible working hours
Spacious and stylish office if you prefer working on site
Organise team office space in your city
Private healthcare & life insurance
Co-financed multisport membership
Book formula - make a book-wish and we’ll grant it!
Being part of company events and meetups
English lessons with a native speaker
A brand MacBook to work on
Additional budget for team outings
Got questions? Feel free to contact us!
You will be in good hands! Our team will help guide you through the recruitment process and maintain communication throughout as well as share feedback with you.
Kinga Szałek
I see work as a genuine passion. For me, it’s about finding fulfillment and joy in what I do. By discovering new people, their unique talents and understanding their perspectives, I have the opportunity to build collaborative teams that continually grow. I invite you to join Appunite to be part of our thriving Team.
Milena Stareńczak
I believe that the Human Being always comes first: their story and needs. Only then we are able to come up with the best solutions. It's an approach that shines through in my role as a recruiter and psychologist on a daily basis. Still in search of creating the best recruitment process and candidate experience.
Magdalena Adamczak
Can a workplace be made up of inspiring people who are the missing piece of the company's puzzle and together create a space for activity and growth? Yes, at Appunite on a daily basis, the curiosity is learn about people and other perspectives never leaves me. I'm in doing sourcing amazing people, sounds good! Are you in?
Maciej Matwiejczyk
I'm passionate about making recruitment simple and effective, always upholding honesty and transparency throughout the process. I focus on the bigger picture in recruitment, ensuring every step aligns with long-term success. My approach prioritizes support and meaningful feedback for everyone involved, building strong connections and lasting matches.