Jun 2025

Senior Java Developer (Spring/Quarkus, REST/SOAP)

Role Overview:

We are looking for a Senior Java Developer to join our hybrid team in Sofia. This role involves designing and implementing backend systems for real-world applications in infrastructure, digital services, and integration projects. You’ll contribute to high-quality, maintainable solutions built for longevity in a collaborative, pragmatic environment.

About Us:

Future-proof Software is a software development company based in the UK and Bulgaria. We partner with international clients to develop robust, long-term software systems with clean architectures. Our small, senior team values quality, proactivity, and close collaboration with clients.

Location:

Hybrid (Sofia-based – 50% office / 50% remote)
Candidates must have a legal permit to work in Bulgaria.

Our Tech Stack:

• Java 17/21
• Spring Boot, Quarkus
• REST, SOAP, WebSockets, OpenAPI
• PostgreSQL, Oracle
• Cloud experience (AWS, Azure, or custom clouds)
• Maven and/or Gradle
• JUnit, or similar testing frameworks
• CI/CD, Docker, GitLab, Kubernetes (OKD), SonarQube

What You’ll Do:

• Design and implement backend systems using Java, Spring Boot, and Quarkus
• Build and integrate distributed microservices via REST, SOAP, and WebSockets
• Write clean, testable, and maintainable code
• Participate in system architecture, interface design, and code reviews
• Collaborate closely with clients and colleagues to ensure successful project delivery
• Follow and improve internal engineering standards and documentation
• Support knowledge sharing and mentor less experienced team members when needed

What We’re Looking For:

• 5+ years of professional experience with Java backend development
• Solid knowledge of Spring and optionally Quarkus
• Hands-on experience with REST and at least basic exposure to SOAP
• Confident in designing APIs and defining clear service boundaries
• Comfortable working with external APIs, authentication systems, or legacy components
• Familiar with CI/CD, Git, and containerized deployments
• Strong communication skills, problem-solving mindset, and proactive attitude
• Based in Sofia and open to hybrid work
• Fluent English (spoken and written)

Bonus Points:

• Experience with security concepts or working alongside security experts
• Understanding of German (some documents or client materials)
• Previous work in regulated domains or large integration projects

What We Care About:

• Writing maintainable and robust systems that last
• Collaborating with clients and delivering real impact
• High engineering standards and respectful communication
• Choosing the right tools and avoiding unnecessary complexity

What We Offer:

• Meaningful projects with real-world impact
• Small, expert team where your input matters
• Hybrid work setup (office + remote)
• Flexible processes and pragmatic workflows
• Friendly, supportive team culture
• Opportunities to learn from experienced colleagues and work with domain experts

If you are interested, please send your CV to info@fpsoftware.io.

Please note: only shortlisted candidates will be contacted.