Junior Java Developer

Salary: 300 - 500 PLN/MD 

Remote: hybrid from Warszawa/Gdynia (at least 1-2 days per week from the office)

Why choose this offer?

• Real impact on system architecture
• Opportunity to design solutions with high availability and horizontal scalability
• Collaboration within a mature, cross-functional team
• Direct communication with Product Owners and non-technical stakeholders

Project

The team is directly involved in managing advertising campaigns. This enables sellers and advertising agencies to create ads, which are then delivered for airing on the company's portal (e.g., sponsored listings, homepage) and on other platforms such as Google. Additionally, the team is responsible for budgeting and advertising billing. They collaborate closely with teams handling the airing of various types of ads, frontend development, and offers visible on the portal.

Expected competences and knowledge

• Minimum 2 year of commercial experience as a Java Developer, with mandatory hands-on experience in production environments
• Required higher education in a relevant field (or currently in progress)
• Good knowledge of Java 11+ (Kotlin is a plus)
• First hands-on experience with Spring Boot
• Practical experience with microservices architecture in production environments
• Familiarity with messaging systems such as Kafka or RabbitMQ
• Basic understanding of distributed systems and asynchronous communication
• Solid understanding of relational databases (SQL), including indexes, constraints, and transactions (without relying on ORM frameworks such as Hibernate/JPA)
• Experience working with monitoring, logging, and application metrics
• Willingness to learn how to build scalable and high-availability systems
• Ability to work in a cross-functional team environment
• Familiarity with reactive programming concepts

Technologies you'll work with

• Java 11+ 
• Spring Boot 
• NoSQL databases
• Spring WebFlux / Project Reactor
• Relational databases (advanced SQL)

Nice to have

• Kafka
• Kotlin
• Event-driven architecture

Client – why choose this particular client from the Jit portfolio?

Our Client dominates the Polish e-commerce arena as the market leader since 1999. With a user base of over 20 million and growing, this well-established platform is at the forefront of e-commerce, constantly striving for growth through market expansion and investment. As a major player in technology, our Client boasts a talented IT team of over 1,000 employees who focus on developing their own cutting-edge technologies. 

Jit Team has had a successful partnership with our Client since spring 2021, with multiple software development teams dedicated to our Client's platforms. These teams operate autonomously, designing platform components through micro-services. 

Working with our Client offers a chance to contribute to a solution used by millions on a daily basis and to tackle the challenge of delivering software at a massive scale, where even a single second of delay can have a significant impact. This project provides a unique opportunity to work with state-of-the-art technologies and tools, making it a rare and valuable experience. 

About Jit Team

The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.

Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.