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Network Engineer - Customer Service

Air Traffic Management
Bratislava FREQUENTIS Solutions & Services s.r.o. Full time/Contractor
Job Introduction
FREQUENTIS Solutions & Services (FSS) as a member of the Austrian Group FREQUENTIS AG, is focused on software development, system engineering and delivery of safety-critical voice communication and information systems. Our solutions are developed and distributed in the following business segments: Air Traffic Management & Defence (civil and military air traffic control, aeronautical information management), Public Safety (police, fire and rescue services, emergency medical services) and Public Transport & Maritime (railway and urban transport solutions, vessel traffic management).

Frequentis portfolio of market-leading products is designed to provide comprehensive solutions for the aviation industry. From automation to tower systems, voice communication to traffic optimisation, information management to surveillance, networks to UTM and recording, we offer a broad range of solutions that cater to all ATM operational needs.

Your role

As a Network Engineer in our Customer Service department, you will play a key role in ensuring the reliability, security, and performance of mission‑critical communication systems used by customers worldwide. You will work closely with service managers, system engineers, and international clients to troubleshoot complex issues, perform root-cause analysis, and implement long-term network solutions.

This role is ideal for engineers who enjoy hands‑on technical work, direct customer interaction, and contributing to highly reliable operational environments.

Join our team and help us make our solutions even more reliable. Work for an international technological leader and enjoy the benefits of flexible working arrangements and our focus on a good work-life balance.
Key Tasks
Operations & Support
  • Provide Level 3 support for customer networks and communication infrastructures;
  • Diagnose, troubleshoot, and resolve network incidents in close cooperation with internal teams and external partners;
  • Perform detailed root-cause analysis and implement corrective measures;
  • Monitor performance of customer systems and proactively identify potential issues.

Integration & Engineering
  • Participate in network design, configuration, and optimization for existing and new deployments;
  • Prepare and maintain network documentation, including diagrams, guidelines, and configuration baselines;
  • Support remote and on-site installation, upgrades, and migrations. 

Customer Interaction 
  • Serve as a technical point of contact for customers during critical interventions;
  • Provide clear communication and professional guidance throughout service activities;
  • Participate in regular service reviews and contribute to continuous service improvement.

Compliance & Quality
  • Follow internal change management and security processes;
  • Ensure adherence to operational, security, and quality standards relevant to safety‑critical communication environments.
Key Qualifications
Technical Skills & Competencies
  • Professional experience in network engineering or system operations;
  • Strong understanding of: 
    • Routing & Switching (Cisco, Juniper, or similar); 
    • Network protocols (TCP/IP, OSPF, BGP, VRRP, VLANs, STP); 
    • Firewalls, VPN, and network security principles; 
  • Experience with monitoring tools (Zabbix, PRTG, Nagios, etc.). ​

Skills considered as an advantage 
  • Familiarity with Linux-based systems;
  • Certifications such as CCNA/CCNP/JNCIA/JNCIS;
  • Knowledge of VoIP, SIP, RTP, or other real-time communication protocols;
  • Experience in safety-critical domains (aviation, public safety, transportation, defense);
  • Scripting skills (Bash, Python, PowerShell);
  • Knowledge of German or Spanish language.

Personality requirements and skills
  • Analytical thinking, problem-solving mindset, and attention to detail;
  • Ability to work in a structured way under time pressure;
  • Strong communication skills in English;
  • Willingness to travel to our headquarters in Vienna twice a week;
  • You are flexible, self-driven, dedicated, goal-oriented and structured in how you approach your work;
  • You can follow corporate processes.
Our Values

Around 3,600 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.

Benefits

We offer an international and exciting work environment with manifold opportunities to grow both personally and professionally. Happiness and commitment of our employees is a key contributor to our success and we therefore put strong emphasis on our team spirit and a healthy work-life-balance. We are located in a modern office building with good public transportation connections, close to the city center of Bratislava.


Vertrauensarbeitszeit Betriebsrestaurant  Home Office  Smartphone Mentoring  Aus- und Weiterbildung  team and company events  employee referral program 
TRUST-BASED REFRESHMENTS HOME MODERN MENTORING TRAININGS
 TEAM & EMPLOYEE
WORKING HOURS AT WORK OFFICE IT-EQUIPMENT PROGRAM COMPANY EVENTS REFERRAL PROGRAM
Benefits

We offer an international and exciting work environment with manifold opportunities to grow both personally and professionally. Happiness and commitment of our employees is a key contributor to our success and we therefore put strong emphasis on our team spirit and a healthy work-life-balance. We are located in a modern office building with good public transportation connections, close to the city center of Bratislava.


Vertrauensarbeitszeit Betriebsrestaurant  Home Office  Smartphone Mentoring  Aus- und Weiterbildung  team and company events  employee referral program 
TRUST-BASED REFRESHMENTS HOME MODERN MENTORING TRAININGS
 TEAM & EMPLOYEE
WORKING HOURS AT WORK OFFICE IT-EQUIPMENT PROGRAM COMPANY EVENTS REFERRAL PROGRAM
Salary
Your individual salary is based on your professional experience and qualifications and is part of our attractive total package.
Apply now
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https://www.frequentis.com/karriere/hrprofils/images/Rispanova.jpg profile picture.

Sofia Viktória Rišpánová

Human Ressources | SofiaViktoria.RISPANOVA@frequentis.com | +421 (2) 32272 169 | Social media contact

Your potential deserves the right environment. At Frequentis, I’m here to guide you toward opportunities where your strengths can shine, and your future can grow.
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At Frequentis we don’t just create innovations,
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to make the world a safer place.
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