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# Senior System Engineer (all genders)

- **Company:** Frequentis AG
- **Location:** Wien, Austria (Remote available)
- **Experience:** Expert
- **Salary:** €46,200.0
- **Contract:** Permanent contract
- **Skills:** VoIP, Cyber Security, Linux, DevOps, Virtualization Technology, Zabbix, Computer Network Technologies, Containerization, Information Technology, Cisco
- **Published:** August 21, 2026
- **Apply:** https://careerjet.at/jobad/atea43092f5510d21dff3971d92aeb5ee0

## About the Role

* Completed technical education (HTL, FH, TU)
 * 10 years of experience as an expert in IT, software, and telecommunications projects with a focus on delivery
 * In-depth technical expertise in:

 * Linux, networking technologies, VoIP (SIP/RTP)
 * Virtualization and container technologies
 * Session Border Controller, Security
 * Design, integration, configuration, troubleshooting, and monitoring (e.g., Zabbix, ELK, OpenSearch)
 * Experience in safety-critical or IT security-related areas is a plus
 * Certifications (e.g., CompTIA, Cisco) are a plus
 * Interest in IT, automation, and DevOps
 * Experience in Air Traffic Management (ATM) is a plus
 * Willingness to travel internationally (up to 30%)
 * Very good English skills

## Description

* Contributing technical expertise to international project teams for the implementation of IT-based voice communication systems in airspace management
 * Design, integration, and further development of highly available, safety-critical IT systems
 * Technical leadership of interdisciplinary teams without disciplinary responsibility
 * Coordinating system architectures, interfaces, and technical concepts with internal and external stakeholders
 * Serving as the primary technical point of contact for the customer on an equal footing
 * Analyzing technical challenges and implementing sustainable solutions
 * Translating technical concepts into high-performance, field-proven high-tech systems
 * Flexible deployment in various roles, both at headquarters and on-site with the customer, Around 2,600 employees are committed to creating a safer world with their innovative strength and technology orientation. Our culture is based on a working environment characterized by fairness and trust, mutual respect and appreciation. As an international company, we value this diversity and recruit regardless of age, gender, origin, ethnicity, sexual orientation or religion. We value fair and good working conditions, an optimum work-life-balance and offer all our employees equal development opportunities. In doing so, we focus on long-term working relationships in order to keep the valuable know-how of our employees stable.


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