PRIMUS Global Solutions (PRIMUS UK & Europe)
Java Backend Developer
Designs, develops, and maintains high-performance Java backend applications, working on multithreading, concurrency, and JVM performance tuning while joining design discussions, code reviews, and mentoring juniors. Core stack: Core Java, Spring Boot microservices, REST/JMS/SOAP, and SQL via JDBC, Hibernate, and JPA.
- Compensation
- Not disclosed
- Location
- Warszawa, Poland
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- Not specified
- Category
- Backend
- Posted
Skills
Must have
- Proficiency in Core Java (collections, generics, exceptions)
- Multithreading and concurrency experience
- Experience with REST, JMS, SOAP, and microservices
- Spring Boot and microservices experience
- Knowledge of JVM internals and memory management
- Data structures and algorithms experience
- Experience with SQL databases
- Hands-on with JDBC and ORM concepts (Hibernate, JPA)
- Adherence to coding standards, security guidelines, and SDLC processes
Nice to have
- Mentoring junior developers and contributing to knowledge sharing
Full description
- Design develop and maintain high performance Java applications using Core Java
- Write clean efficient and well structured code following best practices
- Work on multithreading concurrency memory management and performance tuning
- Participate in technical design discussions code reviews and architecture decisions
- Collaborate with cross functional teams including architects QA DevOps and business stakeholders
- Ensure adherence to coding standards security guidelines and SDLC processes
- Mentor junior developers and contribute to technical knowledge sharing
- Experience with REST JMS SOAP Microservices Core Java
- Proficiency in Java
- Collections Generics Exceptions
- Multithreading Concurrency
- Spring boot Microservices
- JVM internals memory management
- Data structure and algorithm experience
- Experience with SQL databases
- Hands on with JDBC and ORM concepts Hibernate JPA