Senior Software Engineer – Java

• Work on business-critical systems related to parcel creation within InPost’s Consumer & Merchant Domain / Send Team
• Own the full software development lifecycle, from topic analysis and solution architecture through implementation, automated testing, and deployment
• Design and implement microservices following Hexagonal Architecture principles
• Contribute to architectural decisions and solution design
• Build event-driven integrations using Kafka, Avro, and Transactional Outbox
• Write unit, integration, and contract tests
• Participate in code reviews and maintain high code-quality standards
• Identify stakeholders, gather information, and deliver solutions independently end-to-end
• Use AI-assisted development tools such as Claude Code in daily development
• Work within a complex distributed environment of microservices and communication channels

• Senior-level Software Developer
• Strong experience with Java 21+
• Strong experience with Spring Boot, including MVC and/or WebFlux
• Hands-on experience with Kafka
• Experience with PostgreSQL and/or MongoDB
• Good understanding of Hexagonal / Clean Architecture and microservices patterns
• Experience with automated testing, such as Spock or JUnit, Testcontainers, and contract testing
• Experience with Kubernetes, Helm, and GitLab CI
• Solid understanding of OAuth2/JWT-based security
• Proficiency with AI coding tools; Claude Code is the company standard, with GitHub Copilot or Cursor also relevant
• Willingness and availability to travel to Warsaw for the final recruitment stage

• Opportunity to work in a diverse, international, and cross-functional environment
• Work and learn from a senior leader and their leadership team
• Expanding experience and exposure in the e-commerce and logistics industries
• Training opportunities for professional development
• Excellent working environment
• Flexible hours
• B2B type of contract