System Engineer – Voice & Linux Systems

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 We are looking for a System Engineer who will be responsible for the technical implementation, deployment, and quality assurance of our systems throughout their full lifecycle in the Air Traffic Management domain.

This is a hands-on system engineering role , involving on-site installations, system upgrades, and direct interaction with customers, covering activities from system design and integration to acceptance, commissioning, and operational support.

Key Tasks

• On-site installation, integration, and system upgrades at customer locations (airports, ATM centers);
• Active participation in system design phases, including architecture discussions and technical reviews;
• Involvement in Critical Design Review (CDR), Factory Acceptance Tests (FAT), and Site Acceptance Tests (SAT) with customers;
• Direct customer interaction during commissioning, acceptance, and operational phases, including support of incident and problem resolution within agreed service levels;
• Close cooperation with Customer Service and Support teams during in-house and on-site system activities;
• Documentation and analysis of reported incidents and problems;
• Coordinating and carrying out root cause analyses and remedies;
• Designing, planning and technically executing changes and extensions to existing systems (change requests);
• Integrating systems and system components into existing system environments;
• Performing system audits;
• Collaborating with Product Management by providing technical and operational input for continuous product improvements and extensions, based on system lifecycle experience and customer feedback;
• Supporting the transition from delivery projects to the support phase, including building up the required know-how for operating and maintaining handed-over solutions;
• Drafting/updating technical documentation on systems and their interfaces;
• Coordinating with product and development teams on error analysis and troubleshooting.

Key Qualifications Technical Skills & Competencies:

• Install, configure, and maintain Linux servers (particularly RHEL), including updates, upgrades & troubleshooting issues;
• Bash scripting;
• Solid experience with virtualization platforms (VMware preferred);
• Experience with SBC & PABX;
• Experience with various storage technologies;
• Good understanding of basic networking;
• Understanding of clustering concepts;
• Ability to create technical documentation, including step-by-step instructions, specifications, and requirements;
• Able to quickly adapt to frequent software releases.

Skills Considered As An Advantage

• Experience with ATM Voice Communication Systems or safety-critical environments;
• Knowledge of VoIP and SIP protocols;
• Experience with analogue and digital voice interfaces;
• Basic understanding of telecom signaling and voice networking;
• Prior exposure to customer-facing system engineering roles.

Personality Requirements And Skills

• Comfortable working both on-site with customers and in the office (Vienna and Bratislava), balancing technical work with communication and coordination);
• Willingness to travel to customer sites for installations, upgrades, and acceptance activities (typically planned, not ad-hoc);
• You are flexible, self-driven, goal-oriented and structured in how you approach your work;
• You can integrate yourself into a larger cooperation, follow corporate processes.

Candidates with education suit the position

• Secondary with school-leaving examination
• University education (Bachelor's degree)
• University education (Master's degree)

Educational Specialization

• Information Technology
• Telecommunications

Language Skills

• English - Upper intermediate (B2)

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.

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