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. We’re looking for an experienced engineer to join a senior, dedicated team providing production support and evolution for a major automotive OEM’s connected-vehicle platform – a portfolio of web applications and microservices covering telematics, subscriptions, payments, and remote services. You’ll resolve real production issues, then use what you learn to make the platform measurably better: refactoring, breaking down legacy monolithic pieces, modernizing the stack, and raising the bar on observability and automation. What to expect from this roleWe work in a shifted schedule (10:00–18:00), which allows the team to better align with global client time zones and ensure solid coverage for production operations. We’re looking for someone who’s comfortable with, or prefers this setup. This role also involves occasional business travel, including an upcoming project kick-off at the client’s site in the USA. If you enjoy a mix of remote work and international on-site collaboration, this could be a great fit. ResponsibilitiesOwn the full incident lifecycle for live production services – triage, resolve, and run root-cause analysis on high-severity (P1/P2) incidents so they don’t come backWrite permanent fixes, hotfixes and patches in a modern Java 21 / Spring codebase, not just workaroundsIdentify and drive technical improvements, harden reliability and performanceLevel up observability and automation: add the missing logs, metrics and traces, build self-healing and alert-noise reduction, and automate the toil out of operationsHandle system lifecycle work – framework/library upgrades, security patching, vulnerability remediation, End-of-Life monitoringTake part in a 24/7 on-call rotation for critical incidents (additionally compensated)Requirements3+ years of experience building and/or supporting backend applications on the JVM, with strong Java and SpringExperience operating microservices and web applications in production, including troubleshooting live issuesWorking knowledge of AWS and CI/CD pipelinesHands-on experience with observability tooling (logs, metrics, traces) and production monitoringSolid Git skills and understanding of security-and-compliance practicesExcellent command of English and Polish (all communication, reports and documentation are in English)Analytical thinking and strong problem-solving skillsComfort with a shifted work schedule (10:00–18:00) and openness to occasional international business travelNice to haveExperience supporting automotive OEM or connected-vehicle platformsFamiliarity with application servers such as TomcatExperience in production-support / on-call / SRE-style roles and incident managementFamiliarity with ServiceNow, JIRA and Confluence in an operational contextComfortable working across the stack – primarily Java/Spring backend, with some React Native mobile supportExperience with certificate/secrets management and disaster-recovery testingBenefitsNon-corporate work environment among experienced engineersIndividual growth & development plan supported by cyclical feedback sessionsAccess to knowledge platforms Equipment of your choiceFinancing of conferences, external trainings, and certifications (e.g. AWS, Databricks, Anthropic)Language lessons (English, German and Polish for foreigners)LuxMed private medical careWeekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledgeEmployee referral programRewards for the success of the month and year awarded by our employeesSpecial rewards for your years with us (G-Man)Integration activities