{"id":3281135,"url":"https://alion.io/job/viasat-systems-engineer-ran","title":"Systems Engineer - RAN","company":{"id":1758272,"name":"Viasat","domain":"viasat.com","url":"https://alion.io/company/viasat-com","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Jibe","truth_index":{"grade":"A","score":95,"open_postings":3,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":75,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":74000,"max_usd":117000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":145},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-26T12:18:00Z","employer_posted_date":"2026-10-26","last_verified_at":"2026-10-29T21:40:02Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"About usOne 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.\nWhat you'll do\nViasat is looking for a Senior Systems Engineer to join the Access Networks team of Engineering subject matter experts (SMEs). This role will initially involve supporting the design, integration and deployment of the next generation LEO Device to Device Ground Segment mission and Moonlight program, supporting new feature designs and service initiations for Viasat’s existing missions including our GX10 (Arctic) mission and GX7, 8 and 9 satellites, as well as future Viasat missions. The successful candidate will play a lead senior systems engineering role in activities including:\nSystem requirement analysis, design and development, with ownership of current and future AN subsystems with focus on projects investing in 5G NTN solutions\nLead deployment of Access Network subsystems \nDevelop Access Network feature specifications to support projects optimising usage and utility of our current and future satellite fleet\nManaging AN integration processes across Programs (e.g. Moonlight, LEO D2D, GX, ABBP, leases, national GWs, etc.)\nSupport service introduction, and hand-off to operations.\nSupport creation and deployment of 5G NTN test/lab infrastructure\nSimulation and modelling activities in support of new system requirement definition\nProgram and budget Management by working closely with BizOp lead and Project/Product management team.\nThe successful applicant must be self-motivated and be capable of completing complex tasks with minimum supervision and have the confidence and ability to promote improvements and introduce new technologies.\nThe role will require co-ordination with a wide range of other project teams both within and external to Viasat. The successful candidate will be required to represent Viasat as the technical expert in meetings and must be capable of dealing confidently with experts in similar and different disciplines. The role may require regular travel to support system integration activities.\nThe day-to-day\nFrom the high-level architecture produced within Engineering, for post Gate 2 programs on the development/procurement of the Access Network and interfacing to associated subsystems, ensuring specifications are consistent with overall architectural needs\nExperience with 5G NTN AN system engineering knowledge to work on complex issues that impact the success of critical projects, valuable relationships and key business processes.\nMaintain detailed knowledge of industry trends and developments regarding the “state of the art” in 5G NR NTN systems and use this knowledge to influence Viasat’s procurement/development strategy for future ground segment programmes, maximising performance vs cost\nDesign, implement and validate 5G NR NTN L2/L3 features in line with 3GPP specifications\nLead simulation/modelling activities that will determine the risks/benefits of the various candidate solutions, collaborating with peer groups in Systems Architecture and Networks Engineering\nDevelop test tools, simulations as appropriate in support of test campaigns and performance evaluation exercises.\nDevelopment of systems and test campaigns, helping to ensure new nodes have been tested sufficiently before being released to site.\nAccess Network System Engineering to align and maximize, the current and future, Viasat generation of networks.\nCreate and maintain technical documentation to ensure efficient planning and execution\nSupport of Viasat business needs and large satellite programmes, driving solutions in a timely manner when problems arise.\nDevelop requirements for future enhancement of Viasat radio resource management functions, ensuring efficient utilisation of our space segment\nWork closely with other members of the company (within Engineering as well as Global Operations and Business Units) in programme planning and management to ensure successful handover of new systems into commercial service\nValidate and characterise aspects of system behaviour and performance\nDeveloping low level systems engineering knowledge of entire Viasat end to end network from a radio resource management perspective and providing knowledge transfer where applicable\nWorking with internal stakeholders to define and design new services and features to improve performance or meet new service requirements\nWhat you'll need\nFirst Degree or equivalent in Electronic Engineering, Satellite Communications, Telecommunications, Computing Science or related technical discipline \nDetailed knowledge of key technology areas Radio Access Network\nSatellite propagation models \nModulation and Coding\nMobile satellite and VSAT systems\n\nWhat will help you on the job\nInmarsat GX/ BGAN satellite system design and protocols\nViasat SurfBeam, ABBP, Mach3 satellite system design and protocols\nKnowledge of terrestrial mobile network design and operation\nResource management systems\nKa, L, Q/V band antenna technology and RF systems\nData analysis skills\n\nEEO Statement\nViasat 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 on-line application, please click here.\nFrom the high-level architecture produced within Engineering, for post Gate 2 programs on the development/procurement of the Access Network and interfacing to associated subsystems, ensuring specifications are consistent with overall architectural needs\nExperience with 5G NTN AN system engineering knowledge to work on complex issues that impact the success of critical projects, valuable relationships and key business processes.\nMaintain detailed knowledge of industry trends and developments regarding the “state of the art” in 5G NR NTN systems and use this knowledge to influence Viasat’s procurement/development strategy for future ground segment programmes, maximising performance vs cost\nDesign, implement and validate 5G NR NTN L2/L3 features in line with 3GPP specifications\nLead simulation/modelling activities that will determine the risks/benefits of the various candidate solutions, collaborating with peer groups in Systems Architecture and Networks Engineering\nDevelop test tools, simulations as appropriate in support of test campaigns and performance evaluation exercises.\nDevelopment of systems and test campaigns, helping to ensure new nodes have been tested sufficiently before being released to site.\nAccess Network System Engineering to align and maximize, the current and future, Viasat generation of networks.\nCreate and maintain technical documentation to ensure efficient planning and execution\nSupport of Viasat business needs and large satellite programmes, driving solutions in a timely manner when problems arise.\nDevelop requirements for future enhancement of Viasat radio resource management functions, ensuring efficient utilisation of our space segment\nWork closely with other members of the company (within Engineering as well as Global Operations and Business Units) in programme planning and management to ensure successful handover of new systems into commercial service\nValidate and characterise aspects of system behaviour and performance\nDeveloping low level systems engineering knowledge of entire Viasat end to end network from a radio resource management perspective and providing knowledge transfer where applicable\nWorking with internal stakeholders to define and design new services and features to improve performance or meet new service requirements\nFirst Degree or equivalent in Electronic Engineering, Satellite Communications, Telecommunications, Computing Science or related technical discipline \nDetailed knowledge of key technology areas Radio Access Network\nSatellite propagation models \nModulation and Coding\nMobile satellite and VSAT systems","description_format":"text","description_chars":8544,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Space & Aerospace","Telecommunications","Satellite Communications","Mobile Networks"],"lifecycle":[{"event":"open","at":"2026-10-26T16:31:58Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; 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