Fullstack Support Engineer (Java/React)

Grape Up; Town of Poland (NY); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Business travel opportunities

Lunch & Learn

Conferences & training

Job summary

Grape Up is seeking an experienced backend engineer to join a senior team providing support for a major automotive OEM’s connected-vehicle platform. You will manage live production issues, implement permanent fixes, and drive technical improvements using Java 21 and Spring.

This role involves a shifted schedule, occasional business travel, and working within a collaborative remote and on-site environment. Candidates should have strong Java and Spring skills, and be comfortable troubleshooting in an operational context.

Qualifications

• 3+ years of experience building and/or supporting backend applications on the JVM.
• Experience operating microservices and web applications in production.
• Excellent command of English and Polish.

Responsibilities

• Own the full incident lifecycle for live production services.
• Write permanent fixes and hotfixes in a modern Java 21/Spring codebase.
• Identify and drive technical improvements.

Skills

Java

Spring

AWS

CI/CD

Observability tooling

Git

Analytical thinking

Job description

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 role

We 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.

Responsibilities

Own 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 back.

Write permanent fixes, hotfixes and patches in a modern Java 21 / Spring codebase, not just workarounds.

Identify and drive technical improvements, harden reliability and performance.

Level up observability and automation: add the missing logs, metrics and traces, build self‑healing and alert‑noise reduction, and automate the toil out of operations.

Handle system lifecycle work – framework/library upgrades, security patching, vulnerability remediation, End‑of‑Life monitoring.

Take part in a 24/7 on‑call rotation for critical incidents (additionally compensated).

Requirements

• 3+ years of experience building and/or supporting backend applications on the JVM, with strong Java and Spring
• 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 (all communication, reports and documentation are in English)
• 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
• Lunch & Learn
• In‑house Tech Up
• Conferences & training
• Feedback sessions
• Business travel opportunities