5G System Engineer

About us

One team. Global challenges. Infinite opportunities. At Viasat, we’re on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We’re looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team.

What you’ll do

The 5G System Engineer position is part of the User Terminal Type Approval team within Viasat’s Engineering division. This team is responsible for designing and performing comprehensive test campaigns to ensure that products and services meet customer and operator requirements.

The System Engineer’s primary responsibility is to support the development of user terminal terminals operating on current Viasat GEO infrastructure and future 5G/6G platforms. The role involves managing relationships with multiple User Terminal Value Added Manufacturers (VAMs) and leading various Type Approval activities. Additionally, the successful candidate will contribute to programs introducing new services.

This role requires close collaboration with diverse project teams both within Inmarsat and with external partners. The System Engineer will act as a technical authority in vendor meetings and must confidently engage with specialists across multiple fields. Regular travel to manufacturer sites may be required.

The day-to-day

• Definition of Type Approval process for a variety of Viasat Products and Services. The candidate shall work closely with both internal and external technical groups.
• Support the Value Added Manufacturer (VAM) on the execution of the Type Approval process
  • Review meeting
  • Support development milestones
  • Review of test evidences and iteration with the VAM leading to issue of the Type Approval
• Work with the Type Approval team to define the conformance test strategy for future 5G based products, aligned with the GCF approach while identifying potential gaps due to the bespoke aspects of the Viasat product.
• Definition of potential new test tools strategy for existing Viasat services and any new product/services, including various automation concepts to improve team efficiency.

What you’ll need

The candidate shall have

• Good knowledge of mobile satellite signal propagation models, in aeronautical, maritime and land environments
• Working knowledge of link budget, receiver and fading simulations
• Knowledge of hardware development including RF design
• Antenna design, including electronically steered antennas
• Proven ability to define, plan, and follow the execution of regression and acceptance testing activities
• Proficiency in test automation and scripting to improve verification efficiency
• Ability to contribute to product requirements definition and participate in design reviews
• Strong analytical and problem‑solving skills

• General 5G knowledge. The following aspects are of interest for the role considered.
  • NB-IoT NTN conformance & performance
    • 102 E-UTRA; User Equipment (UE) radio transmission and reception for satellite access
    • 521-4 E-UTRA; UE conformance specification; Radio Transmission and Reception; Part 4 Satellite access (RF) and performance conformance testing
  • NR NTN conformance & performance
    • 101-5 NR; User Equipment (UE) radio transmission and reception; Part 5: Satellite access Radio Frequency (RF) and performance requirements
    • 521-5 NR; User Equipment (UE) conformance specification; Radio transmission and reception; Part 5: Satellite access Radio Frequency (RF) and performance
  • Knowledge of future NTN release work items
    • HPUE (High Powered UE) WI
    • Antenna certification & OTA topics
    • Coexistence and capacity studies
  • Knowledge of FCC & ETSI regulation for L and S-band
    • Supported by knowledge of LTE/NR operational procedures e.g. Network Signalled (NS) flags
  • Knowledge of 3GPP measurements and test parameters such as
    • ACLR
    • REFSENS
    • ACS
    • Blocking
  • Understanding of GCF/GSMA framework and conformance testing procedures

What will help you on the job

The candidate must be able to work effectively within a team of engineers, demonstrating collaboration and teamwork skills. A proactive approach is crucial, along with clear communication across a broader group to validate assumptions throughout the process.

Given the exposure to innovative technologies, the successful candidate should be capable of detailing proposed approaches and clearly articulating the rationale behind them.

Due to the nature of the role, it is equally important to communicate progress regularly, highlight potential risks, and bring up any roadblocks promptly to ensure timely resolution.

EEO Statement

Viasat is proud to be an equal opportunity employer, seeking to create a welcoming and diverse environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, ancestry, physical or mental disability, medical condition, marital status, genetics, age, or veteran status or any other applicable legally protected status or characteristic. If you would like to request an accommodation on the basis of disability for completing this online application, please click here.

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