-
Seargin

Senior Java Developer

Seargin
Poland · Full-time · Mid-Senior

About the team

As we are a dynamic team of passionate specialists, and we work in international teams all over the world, we will look for the same business acumen. Facing with customers, we are "out of the box thinking" professionals. Our top performers have a team players attitude, and they cope with challenges on the daily basis. If it all sounds familiar to you - we are looking forward to seeing you on board.


Qualifications

  • Excellent knowledge of Java supported by 8+ years of professional experience
  • Many years of experience in commercial projects in development and maintain scalable backend services using Java, Spring, Spring Boot, and microservices architecture
  • Experience in design and implementation secure RESTful APIs,
  • Practical experience with SQL and one of database engines, manage database interactions with JPA/Hibernate,
  • Very good practical knowledge of optimize performance.
  • Familiarity with Maven and Gradle Experience with source code management, continuous integration and automated deployment
  • Very good knowledge and experience in ensuring code quality through testing and documentation.
  • Very good English language verbal and written communication
  • Experience working in international projects Experience in agile / scrum methodology Knowledge of Clean Code and Unit Testing
  • Bachelor's degree in Engineering, IT, Science, other Technical qualification 8+ years in a corporate IT environment in a similar positions
  • Demonstrable experience of Java and frameworks commonly used in Java projects Strong communication skills


Nice to have

  • Knowledge of Kafka or RabbitMQ is an advantage Certificates proving certain skills: Java, Spring, SQL, AWS or Azure Cloud Knowledge of Docker and Kubernetes is an advantage


Responsibilities

  • Work as a Senior Java Back-end Developer to contribute in various streams of implementation projects
  • Develop and maintain scalable backend services using Java, Spring Boot, and microservices architecture.
  • Design and implement secure RESTful APIs, manage database interactions with JPA/Hibernate, and optimize performance.
  • Collaborate with cross-functional teams, apply CI/CD practices, and ensure code quality through testing and documentation. Participation in design activities.

Key Skills

Ranked by relevance

java microservices restful apis spring boot sql continuous integration kubernetes rabbitmq docker gradle kafka maven cloud scrum cicd aws
Login to Apply
Posted
Dec 17, 2025
Type
Full-time
Level
Mid-Senior
Location
Poland
Company
Seargin

Industries

IT Services IT Consulting

Categories

Information Technology

Related Jobs

3 roles aligned with this opportunity

View all jobs
View Job Details
Seargin
Related

Java Developer (Junior 2+ years of experience)

2026-04-16

Contract
Entry
Poland
IT Services
Information Technology
View Job Details
Capgemini
Related

Senior .NET Developer (Banking & Capital Markets)

2026-06-18

Full-time
Mid-Senior
Poland
IT Services
Engineering
View Job Details
Infolet
Related

Senior Kotlin Developer

2026-06-17

Full-time
Mid-Senior
Poland
Information Services
Information Technology