For people who are going places

Terrestar represents a veritable constellation of talent... dedicated people who are eager to explore new horizons and take bold, new paths while charting the future of telecommunications.

To achieve that, we harness leading-edge technologies to enable seamless direct-to-mobile satellite communications and the Internet of Things.

Our mission: to connect everyone everywhere to their world.

If you think you might be a good fit, why not join our team!

Job Summary:

The NTN Architecture Specialist – Satellite Networks is responsible for the design, optimization and deployment of non-terrestrial network (NTN) solutions. He or she leads the evolution of satellite networks, ensures the performance, resilience and sustainability of systems, and ensures seamless interoperability between the space-based and ground-based satellite segments, in a hybrid satellite and terrestrial environment.

The person who holds this position reports to the Director, Satellite Ground Infrastructure and RAN and works closely with the engineering, operations, cybersecurity teams and internal and external technology partners

Main Responsibilities:

Non-Terrestrial Network Architecture and Design (NTN):

Define the architecture of the ground satellite components, including gateways, feeder links and beamforming systems.
Ensure the integration of the space (beams, payload) and ground (gateways, satellite center/hub, backhaul) segments into the Satellite Radio Access Network (Sat RAN).
Develop technology roadmaps to ensure the performance, resilience and sustainability of NTN infrastructures.
Coordinate interventions with the teams responsible for the gateways for the management of sites, spaces and the deployment of connectivity, security and related elements.
Manage technological choices, including the selection of suppliers and the use of the radio spectrum for Connecting Links.
Participate in the validation of equipment and the management of implementation projects.Define beam formation and management procedures to optimize the coverage and capacity of NTN networks.

Sizing and support of NTN infrastructures:

Ensure the sizing of the satellite infrastructure on the ground and the capacity management of the spectrum resources related to the Connecting Links.
Plan and deploy satellite beam plans, and measure their operational performance.
Collaborate and provide technical support for the calibration, evolution and modernization of the space and ground satellite segments.
Model capacity planning for the space and ground segments and identify capability expansion thresholds (frequencies, channels).Define and maintain the roadmap for the evolution of satellite resources (hardware and logic).

Performance and optimization of NTN networks:

Support, as required, operations teams in the diagnosis and resolution of incidents, including on-site and remote interventions.
Define the procedures for detecting and analyzing interference on satellite reception.
Optimize dynamic beam allocation to maximize network performance.
Develop methods for testing and validating non-terrestrial network (NTN) solutions for the space-based and ground-based satellite segments.
Assess the impact of the evolution of the 3GPP standards (including Direct-to-Mobile (D2D) use cases, device-to-device communication) and ensure their integration into the roadmap for the evolution of satellite ground equipment.

Technical Leadership and Coordination:

Formulate technical and strategic recommendations related to his/her field of expertise.
Collaborate closely with the technical teams of the Radio Access Network (RAN), Network Operations Center (NOC), Lab, Core and Operations, to ensure seamless interoperability between network layers, including NTN, terrestrial and D2D environments.
Work closely with engineering, operations, and cybersecurity teams to ensure compliance, robustness, and security of systems.
Supervise and coordinate the work of equipment and service providers.

Education/Experience/Certification:

Hold a degree in telecommunications or an equivalent field.
Have at least 10 years of experience in non-terrestrial satellite networks (NTNs), including GEO and LEO constellations, satellite gateways and satellite ground equipment.
Experience in Direct-to-Mobile (D2D) communications and Internet of Things (IoT), including NTN IoT environments, is highly desired.
Experience with hybrid operators, integrating satellite networks (GEO/LEO) and 4G and 5G terrestrial networks.

Other Qualifications:

Knowledge of VoLTE (Voice over LTE), VoNB (Voice over Narrowband) and NB‑IoT (Narrowband Internet of Things) solutions, including their integration into NTN (Non-Terrestrial Networks) and NTN IoT environments.
Good understanding of security and compliance standards applicable to critical telecommunications infrastructures.
Proficiency in network management systems, IP protocols, and network monitoring and supervision tools.
In-depth knowledge of Gateway architectures, IP protocols, radio frequency (RF) links and associated network management systems.
Knowledge of Direct-to-Mobile (D2M) architectures and/or NTN IoT (Non-Terrestrial Networks for the Internet of Things) architectures.
Fluency in French is required for this position.
Fluency in English is also required in order to communicate effectively with clients, partners and colleagues on a national scale.

Skills Required:

Adapted to his or her level and field of expertise, the incumbent must possess the following skills:

Ability to develop constantly in a spirit of continuous learning.
Generates value and has an innovative spirit.
Demonstrates sound management of organizational risk and IT security.
Has a service approach.
Team player and collaborative.
Communicates effectively.
Plans and organizes work autonomously, rigorously and agilely.
Has a strong business acumen.

At Terrestar, we’re all about our people!

In addition to enjoying fair, competitive, direct compensation, you'll have access to our incentive plan from the moment you're hired.

You’ll also enjoy:

an open working culture that offers flexibility in terms of when and where you work;
numerous paid holidays throughout the year;
varied health programs including yearly check-ups and virtual 24/7 support.

Above all, you’ll have the opportunity to learn, to grow, and to innovate in ways that will help shape the world of telecommunications.

At Terrestar, the future of telecom is close at hand.

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NTN Architecture Specialist – Satellite Networks

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