> Markdown version of [/jobs/ext/2429268-critical-services-technician](https://www.wearedevelopers.com/jobs/ext/2429268-critical-services-technician). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Critical Services Technician

- **Company:** Jll Technologies
- **Location:** Kelsterbach, Germany
- **Experience:** Starter
- **Contract:** Permanent contract
- **Skills:** JIRA, Data Centers, Data Center Infrastructure Management (CIM), Monitoring of Systems, Issue Tracking Systems, Networking Hardware, Servicenow
- **Published:** August 3, 2026
- **Apply:** https://de.indeed.com/viewjob?jk=cdcb2c7fa4caa9d5

## About the Role

* Completed Ausbildung in: Elektroniker für Betriebstechnik, Mechatroniker, Anlagenmechaniker für SHK, or comparable
 * Elektrofachkraft certification (or willing to obtain within probation)
 * First Aid certification (valid within 2 years)
 * Fire Safety Officer training (Brandschutzhelfer)
 * Valid Class B driving license

Technical Knowledge

 * Electrical power distribution systems (low/medium voltage)
 * HVAC and climate control technology
 * UPS systems, battery banks, emergency generators
 * Basic IT infrastructure (servers, network equipment)
 * Understanding of Tier III/IV critical infrastructure concepts

Language Proficiency

 * Technical terminology proficiency in German

Personal Competencies

 * Independent worker with strong problem-solving skills
 * Team-oriented with excellent communication
 * High stress tolerance and calm under pressure
 * Reliable, punctual, flexible with shift changes
 * Minimum 1-2 years technical operations experience

Preferred Qualifications

Experience:

 * Data centre, telecommunications, or colocation environments
 * Tier III/IV certified facilities
 * Equipment brands: Schneider Electric, Eaton, Vertiv, Stulz, Siemens

Additional Certifications:

 * CDCP (Certified Data Centre Professional)
 * Sachkundenachweis Kältetechnik
 * VDE certifications (VDE 0100, VDE 0105-100)
 * Manufacturer-specific training

Systems:

 * DCIM platforms (Nlyte, Sunbird, FNT Command)
 * BMS systems (Siemens Desigo, Schneider Electric, Johnson Controls)
 * Ticketing systems (ServiceNow, JIRA, BMC Remedy)

## Description

Critical 24/7 operational role ensuring availability and performance of mission-critical data centre infrastructure at one of our new client's facilities. Responsible for monitoring, maintenance, incident response, and compliance with German data centre standards., Infrastructure Monitoring

 * Monitor critical systems via BMS/DCIM platforms (power, UPS, cooling, fire protection, security)
 * Track environmental parameters and system performance in real-time
 * Document all activities and deviations in shift logs

Maintenance & Inspections

 * Conduct structured inspection rounds every 2-4 hours
 * Perform visual/functional checks of UPS, generators, HVAC, electrical systems
 * Execute minor preventive maintenance tasks
 * Support planned maintenance activities

Incident Response

 * Respond immediately to alarms and system faults
 * Perform initial diagnostics and implement emergency protocols
 * Coordinate with external service providers
 * Escalate critical issues per established procedures
 * Document incidents in ticketing systems (ServiceNow, JIRA)

Documentation & Communication

 * Complete detailed shift handover reports
 * Maintain compliance documentation (DIN EN 50600, ISO 27001)
 * Communicate with customers regarding incidents/maintenance
 * Coordinate with Security, IT, and Facilities teams

Compliance & Safety

 * Enforce security protocols and access control
 * Ensure compliance with DGUV, VDE, BDSG/GDPR requirements
 * Participate in safety drills and report hazards


## Related Videos

- [Applying Agile Principles to Incident Management ](https://www.wearedevelopers.com/videos/101-applying-agile-principles-to-incident-management)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray)
- [The Sustainability Race: AI's Promises, Pitfalls and Potential](https://www.wearedevelopers.com/videos/100155-the-sustainability-race-ai-s-promises-pitfalls-and-potential)
- [Robots are coming into the wild! Full-Stack Robotics Engineers, be ready!](https://www.wearedevelopers.com/videos/479-robots-are-coming-into-the-wild-full-stack-robotics-engineers-be-ready)
- [AI in Production: applied AI & enterprise use cases](https://www.wearedevelopers.com/videos/100130-ai-in-production-applied-ai-enterprise-use-cases)

## Related Articles

- [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer)
- [Finding IT & Technology English-speaking Jobs in Germany ](https://www.wearedevelopers.com/magazine/446-finding-it-technology-english-speaking-jobs-in-germany)
- [Best Coding Boot Camps in Germany](https://www.wearedevelopers.com/magazine/237-best-coding-boot-camps-in-germany)
- [IT Salaries in Germany](https://www.wearedevelopers.com/magazine/287-it-salaries-in-germany)
- [A Guide to Green Tech and Green IT Careers](https://www.wearedevelopers.com/magazine/374-a-guide-to-green-tech-and-green-it-careers)
- [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)