Senior Java Backend Developer @ Link Group

Link Group; Polska; On-site; PLN 253,000 - 339,000; Full time

Job summary

A leading consulting firm is looking for a Senior Java Back‑end Developer in Poland. The role involves designing and maintaining backend services using modern technologies like Java and Spring. The ideal candidate has over 5 years of experience and is proficient in RESTful APIs and SQL. Join an agile international team and make a significant impact on innovative projects with global clients.

Qualifications

• 5+ years of professional experience in backend development.
• Strong experience with commonly used Java frameworks.
• Excellent communication skills and problem-solving abilities.

Responsibilities

• Design and maintain backend services in Java and microservices ecosystems.
• Implement RESTful APIs and optimize performance.
• Manage source code and automate deployment pipelines.

Skills

Java

RESTful API

SQL

Agile

English communication

Education

Bachelor’s degree in Engineering or Computer Science

Tools

Spring

Spring Boot

Maven

Gradle

Docker

Kubernetes

Job description

We are seeking a highly skilled Senior Java Back‑end Developer to join our Consulting team and contribute to a wide range of implementation projects across global clients. This role offers the opportunity to work with a modern technology stack, influence solution architecture, and introduce innovative approaches that move our projects to the next level.

As part of an agile, international team, you will collaborate with top industry leaders and work on solutions built on the latest cloud platforms and data technologies. If you are passionate about backend engineering and ready to make a measurable impact, this role is an excellent fit.

Responsibilities

• Excellent knowledge of Java backed by 5+ years of professional experience.
• Hands‑on experience in designing, developing, and maintaining backend services in Java, Spring, Spring Boot, and microservices ecosystems.
• Strong experience with RESTful API design and implementation.
• Practical knowledge of SQL and experience with relational databases including JPA/Hibernate.
• Deep understanding of performance optimization techniques.
• Familiarity with Maven and Gradle build tools.
• Practical experience with source code management, CI/CD, and automated deployment pipelines.
• Proven ability to ensure high‑quality code through testing and documentation.
• Very good communication skills in English, both spoken and written.
• Experience working in international teams and agile/Scrum environments.
• Knowledge of Clean Code principles and unit testing best practices.

To Qualify for the Role, You Must Have

• Bachelor’s degree in Engineering, Computer Science, or another technical field.
• Minimum 5 years of experience in a similar IT role within a corporate environment.
• Strong experience with Java and commonly used Java frameworks.
• Excellent communication skills and strong problem‑solving abilities.

Ideally, You Will Also Bring

• Knowledge of Kafka or RabbitMQ.
• Certifications such as Java, Spring, SQL, AWS, or Azure Cloud.
• Experience with Docker, Kubernetes, or other containerization technologies.