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Offer summary
(Summary generated by AI based on the full job description)
The project involves building a Commerce and Retail Media platform. Key technologies include Kotlin, Java 24/25, Spring Boot, Spring Cloud, messaging via Kafka, REST and cloud services AWS (ECS, Fargate, Lambda). Data storage uses ClickHouse, Aurora, DynamoDB. Responsibilities comprise developing features on AWS, designing scalable architecture and close collaboration with product and business teams. On-call rotation and performance bonus are included.
Senior Software Engineer
Company: COMMERCE MEDIA TECH SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
from: 15 June 2026
to: 15 July 2026
190 - 190 złnet (+ VAT)/ hr.B2B contract (full-time)
21 000 - 23 000 złgross/ mth.contract of employment
Salary details
basic salary
performance bonus
Offer parameters
level:senior
working mode:hybrid
Kraków, Grzegórzki
Requirements
Expected technologies
Claude Code
Copilot
Cursor
Optional technologies
Kotlin
Kafka
Apache Spark
Operating system
Windows
macOS
Linux
Our requirements
- 5+ years of backend engineering experience (JVM ecosystem)
- Bring demonstrable experience in building distributed systems
- Know your way around testing (unit, integration)
- Comfortable diving into frontend work when necessary
- Own your work end-to-end from design decisions to production
- AWS or other major cloud provider experience
- Daily use of AI coding tools (eg Claude Code, Copilot, Cursor) with critical thinking
- Be able to communicate clearly and work independently
- Fluent in Polish and English
Optional
- Kotlin experience (or willingness to learn - it's our primary language)
- Kafka or similar event streaming platforms
- Big Data processing using Apache Spark
Your responsibilities
- Build new features using AWS services at scale
- Design architecture with focus on scalability and maintainability
- Work closely with Product and Business teams
- On-call rotation(paid, once per 8 weeks after onboarding)
About the project
We're the team behind Zeropark, a trusted performance marketing platform. Now, we're building something new from the ground up — a next-generation Commerce and Retail Media platform.
Our Team Culture:
We're a tight-knit, motivated group that works end-to-end — from planning and building to deploying and maintaining. We collaborate closely with the business team and have full access to production environments, with no external ops or support layers.
Our stack
This is how we organize our work
This is how we work
in house
This is how we work on a project
- Continuous Deployment
- Continuous Integration
- integration tests
- unit tests
At Team Internet, we believe in equal opportunities for everyone. We value diversity and make sure all applicants get a fair chance, because we know that our collective strength and diversity makes us stronger.
If you need assistance completing an application for a position with us or need us to make any reasonable adjustments, please reach out to our Recruiting Team at [email protected]
Development opportunities we offer
- development budget
- intracompany training
- technical knowledge exchange within the company
What we offer
- There are many reasons to come on board our team of talented professionals, but here are just a few…
- We are collaborative, fair, consciously inclusive, and flexible
- We trust, value, and support our people to make the difference
- We believe that diversity of thought and experience provides the platform for innovation and creativity
- We invest in the development of our people to drive our ambitions forward
- We offer a range of benefits (including your choice of tech) and a competitive package
- We offer a great work environment in an internationally successful enterprise in the online services industry
Benefits
- sharing the costs of sports activities
- sharing the costs of professional training & courses
- life insurance
- remote work opportunities
- flexible working time
- fruits
- integration events
- corporate library
- no dress code
- coffee / tea
- parking space for employees
Recruitment stages
- 1.Screening
- 2.Live Coding + System Design
- 3.Product+People Management
COMMERCE MEDIA TECH SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Commerce Media Tech, part of Team Internet Group, is a dynamic ad-tech company based in Kraków. We’re passionate about building cutting-edge software that powers smarter, more effective online advertising. Our diverse team of software engineers, UX designers, product managers, marketers, and other talented professionals work together to deliver innovative advertising solutions for brands, agencies, and digital marketers worldwide.
Senior Software Engineer
21k–23k zł / mth. (CoE), 190–190 zł / hr. (B2B)
I apply to:
COMMERCE MEDIA TECH SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Kraków, Grzegórzki
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Informujemy, że administratorem danych jest Commerce Media Tech Sp. z o.o. z siedzibą w Krakowe, ul. Lubicz 17G (dalej jako "administrator"). Masz prawo do żądania dostępu do swoich danych osobowych, ich sprostowania, usunięcia lub ograniczenia przetwarzania, prawo do wniesienia sprzeciwu wobec przetwarzania, a także prawo do przenoszenia danych oraz wniesienia skargi do organu nadzorczego. Dane osobowe przetwarzane będą w celu realizacji procesu rekrutacji. Podanie danych w zakresie wynikającym z ustawy z dnia 26 czerwca 1974 r. Kodeks pracy jest obowiązkowe. W pozostałym zakresie podanie danych jest dobrowolne. Odmowa podania danych obowiązkowych może skutkować brakiem możliwości przeprowadzenia procesu rekrutacji. Administrator przetwarza dane obowiązkowe na podstawie ciążącego na nim obowiązku prawnego, zaś w zakresie danych dodatkowych podstawą przetwarzania jest zgoda. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia ewentualnych roszczeń, a w przypadku wyrażenia zgody na udział w przyszłych postępowaniach rekrutacyjnych - do czasu wycofania tej zgody. Zgoda na przetwarzanie danych osobowych może zostać wycofana w dowolnym momencie. Odbiorcą danych jest serwis Pracuj.pl oraz inne podmioty, którym powierzyliśmy przetwarzanie danych w związku z rekrutacją.
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