Java Backend Engineer

GCS Recruitment; Kraków; Sur place; PLN 165 312 - 247 968; Temps partiel

Résumé du poste

GCS Recruitment is seeking an experienced Senior Java Backend Engineer to join a high-performing engineering team on a 12-month B2B/Freelance contract, with a strong possibility of extension. Remote work is available for candidates based in Poland.

You will design, develop and maintain scalable backend services and microservices, work with Java, Spring, Camel and integration patterns, and mentor fellow engineers across international teams.

Qualifications

• Minimum 5 years of Java Backend experience.
• Bachelor's degree in CS/IT or related field.
• Excellent English communication and stakeholder management.
• Hands-on with Java, Spring Boot, microservices, and Camel/Spring Integration.

Responsabilités

• Build and scale backend services and microservices-based architectures.
• Collaborate with engineering teams to drive technical excellence.
• Design, develop, and maintain robust backend systems.
• Mentor developers and provide training and guidance.
• Stay updated with emerging technologies and best practices.

Connaissances

Java

Spring / Spring Boot

Microservices Architecture

Integration Patterns

Apache Camel

Spring Integration

English communication

Stakeholder management

Team mentoring

Formation

Bachelor's degree in Computer Science or related field

Description du poste

Job Role - Java Backend Engineer

Location: Remote (Candidates must be based in Poland)
Office Hub: Kraków, Poland
Contract: 12 Months (B2B/Freelance)

We are seeking an experienced Senior Java Backend Engineer to join a high-performing engineering team on a 12-month B2B/Freelance contract, with a strong possibility of extension.

This is an exciting opportunity to work on a leading technology platform, collaborating with top-tier engineers in a fast-paced, international environment. You'll play a key role in shaping scalable backend solutions, driving technical excellence, and supporting teams across multiple stakeholders.

Key Responsibilities

• Collaborate with highly skilled engineering teams to build and scale a best-in-class platform.
• Drive technical excellence and contribute to cross-team and cross-functional alignment.
• Design, develop, and maintain robust backend services and microservices-based architectures.
• Work with modern integration frameworks and implement enterprise integration patterns.
• Coach and mentor developers on both client and partner teams.
• Deliver technical training, workshops, and best-practice guidance.
• Collaborate effectively within diverse, multicultural teams across international locations.
• Stay up to date with emerging technologies and continuously improve existing solutions.

Required Skills & Experience

• Minimum 5 years of experience in a Java Backend Engineering role.
• Bachelor's degree in Computer Science, Information Technology, or a related technical field (or equivalent practical experience).
• Excellent English communication, presentation, and stakeholder management skills.
• Strong hands-on experience with:
  • Java
  • Spring / Spring Boot
  • Microservices Architecture
  • Integration Patterns
  • Apache Camel
  • Spring Integration
• Proven ability to adapt to evolving technologies and software landscapes.
• Passion for building high-quality, scalable, and maintainable solutions.
• Experience coaching, mentoring, and supporting development teams.

Interested?

If you're a Java Backend Engineer passionate about Java, Spring, Microservices, and Integration Technologies, we'd love to hear from you.

Apply today or get in touch at [e-mail] to learn more about this exciting freelance opportunity.

GCS is acting as an Employment Business in relation to this vacancy.