Fullstack Support Engineer (Java/React)

Grape Up is a consulting and technology company helping enterprises build mission-critical applications by leveraging AI, cloud-native technologies, and modern software delivery practices.

• 3+ years of experience building and/or supporting backend applications on the JVM with strong Java and Spring skills.
• Experience operating microservices and web applications in production, including troubleshooting live issues.
• Working knowledge of AWS and CI/CD pipelines.
• Hands-on experience with observability tooling (logs, metrics, traces) and production monitoring.
• Solid Git skills and understanding of security and compliance practices.
• Excellent command of English and Polish for communication, reports, and documentation.
• Analytical thinking and strong problem-solving skills.
• Comfort with a shifted work schedule (10:00–18:00) and openness to occasional international business travel.

Nice to have:

• Experience supporting automotive OEM or connected-vehicle platforms.
• Familiarity with application servers such as Tomcat.
• Experience in production-support, on-call, SRE-style roles, and incident management.
• Familiarity with ServiceNow, JIRA, and Confluence in an operational context.
• Comfortable working across the stack, primarily Java/Spring backend with some React Native mobile support.
• Experience with certificate/secrets management and disaster-recovery testing.

• Own the full incident lifecycle for live production services, including triage, resolution, and root-cause analysis of high-severity incidents (P1/P2).
• Write permanent fixes, hotfixes, and patches in a modern Java 21 / Spring codebase.
• Identify and drive technical improvements to harden reliability and performance.
• Enhance observability and automation by adding logs, metrics, traces, building self-healing, alert-noise reduction, and automating operational toil.
• Handle system lifecycle tasks such as framework/library upgrades, security patching, vulnerability remediation, and End-of-Life monitoring.
• Participate in a 24/7 on-call rotation for critical incidents with additional compensation.

Information clause for job candidates in companies from Grape Up capital group explaining data processing, legal bases, rights, and contact details.