Circle K Business Centre Warsaw
Retail
SeniorJavaDeveloper
Neural analysis suggests this role is
optimal for Senior candidates.
“Senior Java Developer at Circle K Business Centre Warsaw. Skills: Java, Spring Boot, Microservices, RESTful APIs. Design backend services. Develop backend services”
Industry & Context.
software design patterns
What They're Looking For.
Must Have
Java backend development, Java (17+), Spring ecosystem, Spring Boot, Spring Data, Spring Security, Spring Web, Spring WebFlux, Spring Integration, RESTful APIs design, microservices architecture, relational databases, PostgreSQL, non-relational/NoSql databases, Azure CosmosDB, asynchronous communication patterns, CI/CD pipelines, GitHub Actions, Azure Pipelines, Jenkins, Docker, Kubernetes, Gradle 8+, cloud environments, Microsoft Azure, clean code principles, software design patterns, Agile environments, Scrum, Fluent English (B2/C1)
Nice to Have
event-driven architectures, Kafka, AI-based tools, Domain-Driven Design (DDD), Test-Driven-Develop (TDD), observability and monitoring tools, loyalty platforms, e-commerce platforms, large-scale consumer platforms, Technical leadership, mentoring experience
What You'll Do.
Design backend services
Develop backend services
Maintain microservices
Contribute to architectural decisions
Contribute to technical decisions
Ensure high code quality
How You'll Work.
Team & Collaboration
Collaborate with Product Owners; Collaborate with QA Engineers; Collaborate with Architects; Collaborate with other teams
Communication Scope
Fluent English (B2/C1)
Process & Methodology
Agile environments, Scrum
Full Job Description
**Job Description** Circle K Business Centre Warsaw is a shared service center supporting Circle K Europe across IT, Finance, Human Resources, Customer Service and other business areas. Circle K is part of Alimentation Couche-Tard Inc., one of the world’s largest convenience retail companies, operating globally across North America, Europe, Asia and the Middle East, with over 12,300 locations worldwide. Our continuously growing development organization (300+ IT professionals) delivers large‑scale software solutions used daily by millions of customers across Europe and North America. # **About the Team** Loyalty Crafters is a backend engineering team responsible for key components of Circle K’s loyalty platform, including EXTRA 2.0. The team develops scalable backend services powering loyalty programs, personalized offers, campaigns, and rewards across multiple European markets. # **Key Responsibilities** * Design and develop backend services within Circle K’s loyalty ecosystem * Build and maintain scalable, highly available microservices * Develop and evolve REST APIs used by mobile and web applications * Contribute to architectural and technical decisions * Ensure high code quality through reviews and best engineering practices * Mentor and support less experienced developers * Collaborate with Product Owners, QA Engineers, Architects and other teams # **Required Skills and Experience** * At least 5 years of commercial experience in Java backend development * Strong knowledge of Java (17+) and Spring ecosystem (Spring Boot, Spring Data, Security, Web/WebFlux, Integration) * Experience in designing and implementing RESTful APIs * Hands-on experience with microservices architecture * Experience with relational databases, especially PostgreSQL * Experience with non-relational/NoSql databases like Azure CosmosDB * Experience with asynchronous communication patterns (queues/topics), * Experience with CI/CD pipelines like GitHub Actions, Azure Pipelines or Jenkins * Expe
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