Java Backend Engineer improving and maintaining KAYAK’s search and booking systems. Collaborating with teams to deliver reliable user experiences in travel technology.
About the role
- Firmware Engineer developing and maintaining Linux-based IoT-Gateway-Firmware with Python. Collaborating across teams for robust product systems and OTA updates.
Responsibilities
- Entwicklung & Pflege der Linux-basierten Gateway-Firmware inkl. Protokoll-/Integrationsmodulen (REST, MQTT, Modbus).
- Aufbau/Betrieb der OTA-Update-Pipeline (Signierung/Verifikation, Versionierung, Rollout-/Rollback-Strategien, Changelogs).
- Einrichtung von Unit-, Integrations- und hardware-nahen Tests; reproduzierbare Builds & Fehleranalysen.
- Analyse/Aufbereitung von Telemetrie- und Log-Daten als Basis für Monitoring, Parametrisierung und Wirksamkeitsnachweise.
- Schnittstellenarbeit mit Embedded, Backend, Operations sowie kundennahen Teams inkl. sauberer Übergaben und Dokumentation.
- Optional: Mitwirkung an Pilotierungen/Field-Tests, Peer-Reviews, Security-/Compliance-Aufgaben im Rahmen der Standards.
Requirements
- Mehrjährige Praxis in Embedded-/Linux-Firmware mit Python und Shell-Scripting
- Linux-Userspace & Tooling: systemd-Dienste, Cross-Compiling/Packaging; Buildroot oder vergleichbar
- Kommunikationsprotokolle M2M: MQTT, Modbus und REST
- OTA-Updates in Produktion: Signierung/Verifikation, Versionierung, Canary-/Rollback-Strategien
- Tests & Qualität: Unit/Integration/HIL, Logging/Tracing, Metriken; Git/GitLab CI/CD, reproduzierbare Builds
- Saubere Doku (APIs, Konfigurationen, Changelogs) sowie Security- & Clean-Code-Mindset
- Sehr gute Deutschkenntnisse (C1 GER) für Teamkommunikation & Dokumentation; Englisch von Vorteil.
Benefits
- Budget für Lernen/Weiterbildung
- Gute Ausstattung
- Hybrid-Arbeitsmodell mit planbaren Labor-/Onsite-Tagen in Alzenau
- Junges, motiviertes, interdisziplinäres Team mit echtem Gestaltungsraum
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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