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CommerceTools Developer
  • Police
CommerceTools Developer
Police, Police, West Pomeranian Voivodeship, Polska
Sii Sp. z o.o.
2. 10. 2025
Informacje o stanowisku

CommerceTools Developer

Miejsce pracy: Szczecin

Technologies we use

Expected

  • CommerceTools
  • Java
  • REST
  • GraphQL
  • Spring Boot

About the 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.

Your 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

Our requirements

  • 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

Optional

  • CommerceTools certifications or previous enterprise-level implementations
  • Experience with other eCommerce platforms

This is how we work on a project

  • Continuous Deployment
  • Continuous Integration

What we offer

  • 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 76M 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

Recruitment stages

  • Send your CV
  • Talk to us about your expectations
  • Learn more about our projects and choose the best
  • Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 500 professionals and implement projects in a variety of industries for clients from many countries around the world.

The Great Place to Work title, won 10 times in a row, proves that at Sii we create a friendly work environment.

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