Senior Software Engineer (Java) - remote (m/f/n)
Remote (Poland-based) senior Java engineer on InPost's Send team, building business-critical parcel-creation microservices end to end — from solution design through automated testing and deployment. Core stack: Java 21, Spring Boot/WebFlux, Kafka, PostgreSQL/MongoDB, Kubernetes, with AI-assisted development (Claude Code) as a daily workflow. Final interview in person in Warsaw.
- Compensation
- Not disclosed
- Location
- Poland
- Work setup
- Remote
- Seniority
- Senior
- Employment
- Contract
- Experience
- Not specified
- Category
- Software engineering
- Posted
Skills
Must have
- Senior-level software development experience
- Strong experience with Java 21+ and 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, Copilot/Cursor also relevant
Nice to have
- Willingness to travel to the Warsaw office for the final on-site interview stage
Full description
Company Description
InPost Group is an innovative European out of home deliveries company, revolutionizing the way parcels are delivered to customers. With operations across several countries, our network of intelligent lockers provides customers with a fast, convenient, and secure delivery option. InPost Group is a publicly traded company, with a market capitalization of about $5 billion as of March 2023. With over 10,000 people worldwide, InPost Group is one of the largest out of home delivery providers in Europe, committed to providing sustainable and efficient delivery solutions to meet the evolving needs of customers in today's rapidly changing landscape.
We are a team that builds the best FMCG e-commerce in Poland. We already have over 300,000 products in our offer, we work with over 300 sellers, and our mobile application has already been downloaded by almost million users in Poland. Due to the fact that our product consists of many elements that must work together efficiently and be managed effectively, we are looking for experienced consumer-focused (Web / Mobile App products) engineering leaders to join us in that journey - heavily influence our future platform build, improve processes and help us deliver best customer experience in the market across all types of devices.
Job Description
Join InPost’s Consumer & Merchant Domain / Send Team and work on business-critical systems responsible for key areas related to parcel creation and some of the largest initiatives across InPost.
You’ll become part of a multidisciplinary team of senior engineers with a high level of autonomy, strong ownership, and real influence on solution architecture.
The team values knowledge sharing, close collaboration, and a friendly working atmosphere.
What you’ll be working on
In this role, you’ll be responsible for the full software development lifecycle, from analysing a topic and designing the solution architecture to implementation, automated testing, and deployment.
Your responsibilities will include:
- Designing and implementing microservices following Hexagonal Architecture principles
- Actively contributing to architectural decisions and solution design
- Building event-driven integrations using Kafka, Avro, and Transactional Outbox
- Writing comprehensive automated tests, including unit, integration, and contract tests
- Participating in code reviews and maintaining high code-quality standards
- Taking ownership of assigned topics, identifying relevant stakeholders, and independently gathering the information needed to deliver solutions end-to-end