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Network Engineer - NIS (m/f/d)

Network & Infrastructure

Karlsruhe FREQUENTIS Comsoft GmbH From now on Full time

Job Introduction

Even though we maintain our feet on the ground, our second home will always remain in the sky. As a medium-sized IT company situated in Karlsruhe Germany, developing tailored solutions for global air traffic control authorities is our forte. Our contribution to Flight security, can be found in our systems that operate at various flight control centres and airports, located in more than 80 countries of the world. FREQUENTIS COMSOFT is part of the successful Frequentis group, situated in Vienna, Austria. More information about us on our Youtube Channel.

So, are you ready to take off?

Key Tasks

Design, implement, and maintain secure network and infrastructure solutions for international customer projects
Evaluate new hardware and technologies and contribute to network architecture concepts
Configure and optimize routing, switching, and security environments
Support configuration management, monitoring, and troubleshooting activities
Collaborate with System Engineers and customers to deliver reliable solutions for KRITIS-sector projects

Key Qualifications

A degree in Computer Science or a comparable qualification
Several years of experience in the network/security field
Strong understanding of routing and switching, with knowledge of technologies from Cisco, Juniper, Fortinet, and similar vendors
Passion for developing complex technical solutions
CCNP certification or equivalent knowledge and practical experience
Strong analytical and problem-solving skills with a structured and solution-oriented working style
Confident and professional demeanor when interacting with internal and external customers
Good command of written and spoken English

Our Values

At Frequentis Comsoft, we are convinced that people deliver their best results when working in a company that suits them. Our employees all want to make a difference and to take responsibility for their work. We also firmly believe that as a company, we are stronger when people from diverse backgrounds actively contribute to the business. In addition to professional qualifications, we rely on good ideas, commitment and personal responsibility. We are always seeking bright minds, experts and lateral thinkers of every type, all of whom share an enthusiasm for making global air traffic even safer.

Benefits

We offer attractive employee packages, where financial rewards are just as important as other benefits, including a 30-day annual leave allowance, sports and health programs, and JobRad bicycle leasing. The work-life balance of our employees is particularly important to us. We believe that private and family needs should be fully compatible with the daily work routine and that our employees should feel able to meet personal commitments even during standard working hours. This is another reason why flexitime and virtual working models come as standard at Frequentis Comsoft. In addition, our spacious and quiet offices, in which a maximum of four colleagues sit together, provide a calm and productive working environment. We are also guided by the principle of “healthy mind in a healthy body”. Our staff can train before or after work in our in-house gym or participate in sports courses. In addition, we regularly participate in various sports activities to promote team spirit and celebrate shared successes. A range of annual parties and events – for example, on our beautiful roof terrace – strengthen our sense of corporate community.


FLEXIBLE, FAMILY FRIENDLY	LIVELY, OPEN	PERMANENT	INTERNATIONAL	COMPANY	OFFICES WITH	ROOFTOP	FREE	CORPORATE	EASY ACCESS
WORKING HOURS	CULTURE	EMPLOYMENT CONTRACTS	CAREER OPORTUNITIES	GYM	MAX. 4 PERSONS	TERRACE	BEVERAGES	EVENTS	TO PUBLIC TRANSPORT

Benefits


FLEXIBLE, FAMILY FRIENDLY	LIVELY, OPEN	PERMANENT	INTERNATIONAL	COMPANY	OFFICES WITH	ROOFTOP	FREE	CORPORATE	EASY ACCESS
WORKING HOURS	CULTURE	EMPLOYMENT CONTRACTS	CAREER OPORTUNITIES	GYM	MAX. 4 PERSONS	TERRACE	BEVERAGES	EVENTS	TO PUBLIC TRANSPORT

Salary

Your individual salary is based on your professional experience and qualifications and is part of our attractive total package.

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Discover the best way of working

Teodora Santoro

Human Resources | +49 (721) 9497 2600 | Social media contact

Become part of Frequentis Comsoft and apply now - our CV parsing will make your application easier and faster!

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At Frequentis we don’t just create innovations,we create a kind of wonderto make the world a safer place.

About the company

Frequentis designs and sells highly reliable communication and information systems for mission-critical use. Its products and services support civil aviation, defense, public safety, maritime and public transportation, with customers such as air traffic management, railways and emergency services. The systems combine secure voice and data communications with information management to enable safe and efficient operations, and are delivered through long-term partnerships that include ongoing maintenance and support. The company grows its offerings through strategic acquisitions, like Orthogon, to broaden its product suite. Operating globally, Frequentis focuses on reliability, performance and continual improvement to help customers run critical operations without interruptions. Its goal is to be a trusted partner that enables safe, efficient, and coordinated operations across multiple sectors and geographies.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Vienna, Austria

Founded

1947

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Simplify's Take

What believers are saying

H1 2026 revenue rose 44.8% to €342.9 million, with positive EBIT.
Order intake reached €361.7 million in H1 2026, supporting backlog conversion.
Frequentis ended August 2026 with €107.4 million net cash and growing headcount.

What critics are saying

FAA VoICE delivery of 63 X10 systems runs only through early 2027.
2025 EBIT included an €8 million claim settlement, inflating profitability.
Nemergent’s July 2026 majority takeover ties Frequentis to execution risk in MCX expansion.

What makes Frequentis unique

Frequentis won FAA BNATCS work, producing 15,000 APC gateways in 2026.
Its X10 platform powers PANSA’s virtual ATC center across Poland.
ASTRID chose Frequentis LifeX for Belgium’s NG112-ready emergency communications overhaul.

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Benefits

Remote Work Options
Commuter Benefits
Home Office Stipend
Sabbatical Leave
Mentoring Program
Training Programs
Meal Benefits
Employee Referral Program

Growth & Insights and Company News

Headcount

6 month growth

19%

1 year growth

18%

2 year growth

18%

Radio China

Aug 27th, 2026

ASTRID Selects Frequentis LifeX for Belgium's ComHub Emergency Communications Modernisation

ASTRID selects Frequentis LifeX for Belgium's ComHub emergency communications modernisation. ASTRID, the communication provider for Belgium's emergency and security services, has selected Frequentis to deliver its LifeX communication platform as part of the nationwide ComHub modernisation programme. The project will strengthen how emergency calls are handled and responders are dispatched, helping police, fire, and medical services deliver faster, more coordinated support across Belgium. "Frequentis brings proven expertise in delivering mission-critical communications for emergency services. Through ComHub, we are creating a modern communication environment that will help emergency centre operators support citizens even more effectively today while preparing Belgium's emergency services for the challenges and opportunities ahead," said Christophe Grégoire, CTO, ASTRID. The platform is designed to meet upcoming European NG112 standards, including supporting real-time text, changing public communication habits, and broader accessibility needs. It will also support a seamless path towards ASTRID's future Mission Critical Services (MCX) network, supporting the evolution of public safety communications in the years ahead. To support both the people who call for help and the teams working on the front line to protect communities across Belgium, ASTRID is investing in proven technology from Frequentis to create a resilient foundation for emergency response. "This project is about ensuring that emergency services can communicate and collaborate effectively. Together with ASTRID, we are building a future-ready environment that strengthens emergency response across Belgium," says Thomas Pilsl, Frequentis Senior Vice President Public Safety.

MCXTEND

Aug 14th, 2026

PANSA Deploys FREQUENTIS X10 to Modernise Poland's Air Traffic Communications

PANSA deploys FREQUENTIS X10 to modernise Poland's air traffic communications. Poland, August 2026 - The Polish Air Navigation Services Agency (PANSA) has deployed FREQUENTIS' next-generation X10 Voice Communication System (VCS), strengthening the country's air traffic management capabilities while supporting greater operational resilience, flexibility and future digitalisation. The deployment represents another milestone in the long-standing collaboration between PANSA and FREQUENTIS. PANSA manages approximately 3,000 flights every day, overseeing one of Europe's largest airspaces, making reliable and resilient communications a critical component of safe and efficient air traffic operations. X10 enables virtualised air traffic control operations. The new X10 platform provides PANSA with an advanced IT-based voice communications environment capable of supporting a virtual centre configuration, enabling seamless interconnection between air traffic control centres across Poland. The implementation comprises 74 operational positions, including 60 positions dedicated to active air traffic management and 14 positions for air traffic controller training. This configuration allows PANSA to support both live operational requirements and controller development within an integrated communications environment. The deployment also reflects the industry's broader transition from traditional, hardware-centric voice communication infrastructure towards software-based, flexible and scalable platforms designed for increasingly distributed and virtualised air traffic management environments. Software-Based architecture designed for resilience. FREquentis X10 is a fully software-based, ATM-grade Voice Communication System designed to support both conventional and virtualised airspace operations. Its architecture provides operational flexibility while enabling integration with existing and future IP-based network environments. The system incorporates multi-level redundancy and built-in cybersecurity capabilities, supporting continuous availability and resilience in safety-critical air traffic management operations. Its open architecture is designed to facilitate integration with evolving ATM infrastructure and technologies. According to FREQUENTIS, X10 is designed as a long-term voice communications platform, combining modularity, scalability and an architecture capable of supporting future operational models including virtual centres and other increasingly digitalised airspace concepts. Nearly three decades of PANSA-FREQUENTIS collaboration. Reinhard Grimm, Executive Vice President ATM at FREQUENTIS, said the deployment builds on almost 30 years of cooperation with PANSA and reflects the two organisations' continued commitment to aviation safety in Poland. "This successful X10 deployment supports PANSA's goals for resilience and overall efficiency based on a leading-edge technological environment." The latest implementation further strengthens PANSA's technological foundation for managing Poland's airspace while providing the flexibility required to adapt to changing operational and technology requirements. Supporting the future of air traffic management. The PANSA deployment highlights the growing role of software-defined communications, virtualisation and resilient IP-based infrastructure in the modernisation of air traffic management. With its combination of ATM-grade cybersecurity, multi-redundancy, open architecture and support for virtualised operations, FREQUENTIS X10 is positioned to help air navigation service providers modernise critical voice communications while maintaining the availability and resilience required for safety-critical operations.

TelecomTV

Jul 30th, 2026

Ericsson selected for Queensland's rail network upgrade ahead of 2032 Olympics.

Ericsson selected for Queensland's rail network upgrade ahead of 2032 Olympics. Jul 30, 2026 * The deployment uses a mission-critical private 5G network to serve as foundational connectivity platform to enable safer, more efficient and higher-capacity rail operations * Mission-critical communications capability to underpin Queensland Rail's introduction of new digital signaling and train control system Ericsson (NASDAQ: ERIC) today announced it will provide the 5G-enabled Digital Radio System (DRS) technology in partnership with rail engineering firm UGL Transport and including mission-critical communications specialist Frequentis, following the Queensland Government's selection of the team to deliver the first phase of a next-generation rail communications network across South-East Queensland. Awarded by the Queensland Government, the contract will see the new DRS deployed as part of Stage 1 of The Wave, the transformative public transport and rail infrastructure program being delivered to connect Brisbane and the Sunshine Coast in Queensland. The DRS will provide the communications foundation to support rollout of European Train Control System (ETCS) Level 2, a next-generation signaling technology that enables continuous digital train control being delivered by Alstom. As part of the project, Ericsson will deliver the 5G communications platform underpinning the solution. The technology is designed to support mission-critical rail operations and provide a pathway toward Future Railway Mobile Communications System (FRMCS) capabilities, helping improve safety, operational efficiency and network capacity. UGL Transport, Ericsson and Frequentis will deliver the first operational section of the Digital Radio System to the Sunshine Coast line, which is a key corridor in the broader upgrade plans for Queensland's rail network. The system will be ready to support passenger services ahead of the Brisbane 2032 Olympic and Paralympic Games. The Digital Radio System project forms one of four major work packages within TMR's broader procurement activity for Stage 1 of The Wave. Ludvig Landgren, Head of Ericsson, Australia and New Zealand says: "This is a significant moment for digital rail in Australia. Ericsson's mission-critical private 5G platform will underpin Queensland's next-generation rail communications network, supporting safer operations and enabling the introduction of European Train Control System Level 2 digital train control. We are proud to be part of the team delivering this critical infrastructure for Queensland and for the Brisbane 2032 Olympic and Paralympic Games."

TechnologieBox

Jul 22nd, 2026

FREQUENTIS completes production of 15,000 APC gateways.

FREQUENTIS completes production of 15,000 APC gateways. * 15,000th Air-to-Ground Protocol Converter (APC) produced for the FAA's Brand-New Air Traffic Control System (BNATCS) * Milestone for the world's largest aviation communications modernization program with thousands of network endpoints in the US national airspace * APC gateways enable the large-scale migration from TDM to VoIP-based communication systems within the FAA's BNATCS program Frequentis has successfully completed production of the 15,000th Air-to-Ground Protocol Converter (APC) for the "Brand-New Air Traffic Control System" (BNATCS) modernization program of the US Department of Transportation. The APC program enables the Federal Aviation Administration (FAA) to safely migrate radio and voice communication systems (VCS) to modern IP-based systems. Frequentis USA received the contract for APC delivery in 2024 as part of the first phase of the FAA's Voice-over-IP Communication Enterprise (VoICE) program. VoICE is a comprehensive modernization program to replace existing voice communication systems for air traffic control with advanced, networked VoIP technologies. The goal is to sustainably improve safety, reliability, and operational flexibility throughout the National Airspace System. The program includes both APC implementations and subsequent deliveries of voice switching systems. The production of 15,000 APC units represents a major milestone in the VoICE program. To meet the ambitious schedule, Frequentis relied on its long-standing partnership with ComSonics, Inc., a Virginia-based company specializing in highly automated electronics manufacturing. The existing collaboration in the production of critical electronic components for FAA systems in the US proved to be a key success factor. In the next phase of the program, Frequentis will begin delivery of its latest voice communication system, the Frequentis X10 VoICE. The first 63 X10 systems are currently being built, with full delivery expected by early 2027. "Frequentis is proud to support the Department of Transportation's BNATCS program," said Dieter Eier, Managing Director of Frequentis USA. "Our team has achieved extraordinary results, accelerating delivery of the 15,000 APC systems from the original eight years to just twelve months, enabling modernization of air traffic control communications at an unprecedented pace." About Frequentis Frequentis stands "For a safer world." Our solutions are used in control centers and command centers of our customers, helping them make the world safer. Frequentis is the global market leader in high-tech systems for air traffic control: civil and military air traffic control (Air Traffic Management segment) as well as police, rescue, fire, rail, and maritime (Public Safety & Transport segment) rely on our extensive portfolio. The publicly traded family-owned company headquartered in Vienna is a driver of innovative, sustainable solutions for safety in daily life and in safety-critical areas. Offerings for air traffic optimization for air traffic control centers help reduce emissions. The global corporation with over 2,600 employees (full-time equivalents, FTE) has a global network of subsidiaries in over 50 countries. Products, services, and solutions are in use in around 150 countries. Frequentis is listed on the Vienna and Frankfurt stock exchanges, ISIN: ATFREQUENT09, WKN: A2PHG5. In 2025, revenue of EUR 580.1 million and EBIT of EUR 46.8 million were generated. Detailed information about Frequentis can be found on the website http://www.frequentis.com Barbara Fuerchtegott, Head of Communications/Company Spokesperson [email protected], +43 1 81150-4631 Issuer: Frequentis AG Address: Innovationsstraße 1, 1100 Vienna Country: Austria Contact: Stefan Marin Tel.: +431811501074 E-Mail: [email protected] Website: www.frequentis.com ISIN(s): ATFREQUENT09 (Share) Stock exchanges: Official trading in Vienna Other trading venues: Regulated market in Frankfurt Submitted by the IRW-Press News Service of IR-WORLD.com Finanzkommunikation GmbH The content of the press release or research is solely the responsibility of the creator of the message. This message is not investment advice or a solicitation to conclude certain stock exchange transactions. Company contact and publisher of the message: IR-WORLD.com Finanzkommunikation GmbH Wickepointgasse 13 A4611 Buchkirchen Phone: +43 (7242) 211930-11 Fax: +43 (7242) 211930-10 http://www.IRW-Press.com Contact: Tamara Faust Phone: +1 (604) 715-2057 E-Mail: [email protected] Further links The story above is solely the responsibility of the respective publisher specified above (see company contact). This publisher is usually also the copyright holder of the press text and any attached image, audio, video, media, and information materials. United News Network GmbH assumes no liability for the correctness or completeness of the presented message. Even in the event of transmission errors or other disruptions, liability is limited to cases of intent or gross negligence. Use of archived information for personal information and editorial processing is generally free of charge. Please clarify copyright issues with the specified publisher before further use. 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Critical Comms

Jun 29th, 2026

Mobile Tornado joins the Frequentis MissionX ecosystem.

Mobile Tornado joins the Frequentis MissionX ecosystem. Monday, 29 June, 2026 Mobile Tornado, a provider of push-to-talk over cellular (PTToC) and workforce communications solutions, has announced its integration into the Frequentis MissionX Ecosystem. The company says the collaboration enables Mobile Tornado to deliver standards-based MCX capabilities, supporting organisations that depend on secure, resilient and highly available communications for day-to-day operations. As industries increasingly rely on digital communications across LTE and 5G networks, the demand for standards-based mission-critical communications continues to grow. Organisations operating in sectors such as transport, utilities, energy, logistics, security and critical infrastructure require communications platforms that can maintain operational continuity, even in challenging network conditions. The integration extends Mobile Tornado's capabilities beyond traditional Push-to-Talk over Cellular, enabling support for 3GPP-standard MCX services that offer enhanced reliability, interoperability and network prioritisation. A key component of the integration is the Frequentis MissionX MCX software development kit (SDK). The company says the enhanced solution delivers several key benefits for organisations operating in business-critical environments, including guaranteed network priority access for mission-critical, network pre-emption during periods of network congestion, better operational resilience and 3GPP standards-based interoperability. "The integration of the Frequentis MissionX MCX SDK has been exceptionally smooth," said Luke Wilkinson at Mobile Tornado. "Its standards compliance, maturity and developer-friendly architecture enabled us to rapidly enhance our platform with advanced MCX functionality. This milestone represents an important step in our strategy to provide customers with future-ready communications solutions that combine reliability, flexibility and innovation." The collaboration reflects a shared commitment between Mobile Tornado and Frequentis to advance the adoption of standards-based mission-critical communications across commercial and critical infrastructure sectors. By combining Mobile Tornado's expertise in business-critical communications with the capabilities of the Frequentis MissionX ecosystem, the companies say organisations can benefit from solutions designed to meet both current operational requirements and future industry demands. Nokia's AI-RAN platform helps telecommunication providers unlock more uplink and downlink... The 450 MHz Alliance reports that the use of 450 MHz technologies continues to grow worldwide in... THORIS is a counter-UAS capability in the form of a modular architecture designed for...

Frequentis

Network Engineer

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