Rzeszów, Rzeszow, Podkarpackie Voivodeship, Polska
Sii Sp. z o.o.
22. 9. 2025
Informacje o stanowisku
technologies-expected :
CommerceTools
Java
REST
GraphQL
Spring Boot
SQL
NoSQL
Docker
Kubernetes
about-project :
We are looking for an experienced CommerceTools Developer to join our eCommerce / Digital Customer Experience Competency Center. You will have the opportunity to build scalable headless commerce solutions focusing on innovative platforms for international clients.
responsibilities :
Design, develop, and maintain CommerceTools-based backend services using Java / Spring Boot
Extend CommerceTools functionalities through custom extensions, webhooks, and event-driven services
Implement scalable APIs and microservices to integrate CommerceTools with other systems
Optimize backend communication via GraphQL and REST APIs, ensuring high performance and security
Ensure robust system architecture with a focus on scalability, high-performance, and maintainability
Set up and manage CI/CD pipelines for Java-based microservices
Promote best engineering practices: code reviews, unit/integration testing automated testing, documentation, and monitoring
requirements-expected :
Minimum 5 years of experience in developing Java-based applications, preferably in eCommerce domain
Strong hands-on experience with CommerceTools (APIs, Merchant Center, product and catalog modeling)
Solid understanding of microservices architecture, event-driven patterns, and serverless solutions
Proven track record in headless commerce or composable commerce projects
Experience with GraphQL and REST API development and integrations
Proficiency in SQL & NoSQL databases
Familiarity with Docker, Kubernetes, CI/CD pipelines, and cloud services
Fluency in English (written and spoken)
Residing in Poland required
offered :
Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People