Senior Java Developer

Jit Team; Gdynia; Híbrido; PLN 166 000 - 240 000; Tempo integral

Resumo da oferta

Jit Team in Poland is seeking a skilled backend developer to join a newly created development team focused on scalable cloud-native solutions for a global HR leader. You will contribute to building and enhancing backend services using Java, Spring, Hibernate, and PostgreSQL in a modern, agile setting with a strong emphasis on code quality and performance.

As part of an elastic hybrid work arrangement from Gdynia, you will work with AWS cloud services, Docker containers, and best practices to

Qualificações

• Strong proficiency in Java and backend development principles.
• Solid understanding of PostgreSQL and database optimization techniques.
• Hands-on experience with Hibernate Criteria API for efficient data queries.
• Experience with Docker for containerization and deployment.
• In-depth knowledge of the Spring ecosystem (Spring Boot, Spring Batch).
• Experience in batch processing using Spring Batch.
• Practical knowledge of AWS services, including ECS, S3, and RDS.

Responsabilidades

• Developing new application modules based on business requirements.
• Reviewing and improving code, ensuring high maintainability and scalability.
• Designing and implementing efficient backend solutions.
• Writing clean, structured, and scalable code following best practices.

Conhecimentos

Java backend development

PostgreSQL tuning

Hibernate Criteria API

Spring Framework (Boot, Batch)

REST API design

Docker

AWS (ECS, S3, RDS)

Spring Batch

Descrição da oferta de emprego

Salary: 900 - 1300 pln/md on B2B

Remote: elastic hybrid from Gdynia (probably 1 day working from the office, final details to be discussed with the team)

Why choose this offer?

• Be part of a newly created development team working on a long-term project
• Opportunity to shape technical decisions and best practices from the start
• Work on a scalable, high-performance system with a strong focus on clean architecture
• Gain hands‑on experience with cloud technologies and containerization

Project

We are building a new development team for a global leader in HR and workforce solutions. This project will focus on developing scalable backend solutions for high-demand business operations, integrating cloud services, and ensuring system reliability. You will work in an agile environment with a strong emphasis on code quality, clean architecture, and performance optimization.

What You'll Be Doing

• Developing new application modules based on business requirements
• Reviewing and improving code, ensuring high maintainability and scalability
• Designing and implementing efficient backend solutions
• Writing clean, structured, and scalable code following best practices

Expected competences and knowledge

• Strong proficiency in Java and backend development principles
• Solid understanding of PostgreSQL and database optimization techniques
• Hands‑on experience with Hibernate Criteria API for efficient data queries
• Experience with Docker for containerization and deployment
• In‑depth knowledge of the Spring ecosystem (Spring Boot, Spring Batch)
• Experience in batch processing using Spring Batch
• Practical knowledge of AWS services, including ECS, S3, and RDS

Technologies you’ll work with

• Java
• Spring (Boot, Batch)
• Hibernate
• REST API
• PostgreSQL
• AWS (ECS, S3, RDS)
• Docker

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

We have partnered with our Client, a leading HR company with over 60 years of experience and a presence in multiple countries around the world. Our Client provides a wide range of recruitment and job placement services and is dedicated to helping individuals achieve their career goals.

In Poland, our Client has been operating for over 20 years and is at the forefront of digitization in the HR services industry. Our team has been building the Time tracking system for our Client since 2019, a complex tool for registering and settling the working time of full-time and temporary employees working under different legal and organizational conditions, supporting on-boarding processes, and integrating with the employee portal and mobile app.

As a member of Jit Team, you will have the opportunity to work on a modern, complex enterprise-class system built in modern technologies such as Java and the AWS cloud. With a business-critical operation, the Work Time system settles working time for tens of thousands of employees every month and contributes to our Client's revenue.

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.