{"id":2426772,"url":"https://alion.io/job/ses-senior-satcom-system-engineer-5g-ntn-iris2","title":"(Senior) Satcom System Engineer (5G NTN), IRIS2","company":{"id":54618,"name":"SES","domain":"ses.com","url":"https://alion.io/company/ses-com","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"DevOps","role_family":"DevOps","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":["Betzdorf, Luxembourg"],"countries":["LU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":78000,"max_usd":215000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":3074},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"MATLAB","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-13T08:05:40Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-19T12:25:25Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"Senior Satcom System Engineer (5G NTN), IRIS2\nThe job responsibilities outlined in this document are not exhaustive and may evolve over time and be reviewed according to business needs.\nProgramme Description\nIRIS² is the new European Union secure satellite communications constellation. This project is the European Union's answer to the pressing challenges of tomorrow to provide secure connectivity services and enhanced communication capacities to the EU and its Member States as well as to governmental users, private companies and European citizens while ensuring high-speed internet broadband to cope with connectivity dead zones.\nSES - together with other consortium partners and core members - was selected by European Commission to build and to operate the IRIS² multi-orbit satellite constellation.\nThe IRIS² team enters the next project phase and there is a strong need for support for all the activities around service provisioning and products that the system can offer in the future.\nRole description summary\nWe are seeking a Senior Satellite Communications System Engineer to play a key role in the design, integration, and delivery of a Medium Earth Orbit (MEO) satellite constellation and its associated ground system. The program delivers broadband services notably using cutting-edge technologies such as advanced on-board digital processing or 3GPP 5G Non-Terrestrial Networks (NTN) protocols, requiring close coordination across space, ground, and terrestrial network domains.\nThis role sits at the space system level and is ideal for an engineer who enjoys owning end-to-end technical performance, driving requirements, and solving complex cross-domain problems.\nPRIMARY RESPONSIBILITIES / KEY RESULT AREAS\nContribute to the system-level architecture and design for a MEO satellite communications system, focusing on the space segment in relations with the ground and user segments \nContribute to the design, specification and integration of the main payload and ancillary hosted payloads \nDefine system requirements across satellites, gateways, network functions, and terminals \nDevelop and validate RF/optical link budget and performance analyses for MEO orbits, including latency, Doppler, handover, and availability \nSupport integration of 5G NTN in compliance with 3GPP standards\nCollaborate with RF, payload, spacecraft, ground infrastructure, and software teams to ensure cohesive system performance \nSupport ground system design, including gateways, mission control, and interfaces to terrestrial networks \nSupport the definition of system verification and validation (V&V) strategies, including simulations, test campaigns \nAnalyze operational concepts (CONOPS) for network operations, mobility management, beam hopping, and constellation management \nIdentify and manage technical risks, performance margins, and trade studies across the program lifecycle \nInterface with customers, partners, and external stakeholders on system design and performance topics \nIn the execution of these tasks, you will be supported by experts from the Project team.\nCOMPETENCIES\nExcellent knowledge of satellite communications systems technologies: system sizing, link budgets \nVery good knowledge of telecommunication payload systems (antennas, amplifiers, processors, etc.) \nGood experience with system modelling tools (e.g. Matlab, Python custom simulations) and system trade-off analyses \nFamiliarity with 3GPP 5G NTN standards and their practical implementation \nKnowledge of free space optical telecommunication technologies \nKnowledge of regulatory and spectrum considerations for satellite systems \nFluency in English (any other language being an asset) \nQualifications Background and Experience\nMaster’s degree or higher in Electrical Engineering, Aerospace Engineering, Telecommunications, or related field\nFor Senior position, 8+ years of experience in SATCOM system engineering, with demonstrated ownership of complex systems\nStrong understanding of satellite communications architectures, including space and ground segments\nStrong proficiency in link analysis, system modeling, and performance trade studies\nExperience integrating satellite systems with terrestrial telecom networks \nExperience with MEO and/or LEO constellations, including constellation dynamics and handover concepts\nKnowledge of 5G or LTE networking principles, particularly as applied to NTN or hybrid networks \nPrior involvement in AIT, IOT or operational satellite networks \nExperience working across the full program lifecycle (requirements, design, integration, test, and operations)\nOther key requirements / comments\nEligibility for ESA/EU SECRET personal security clearances is essential. Candidates must be prepared to undergo a security clearance procedure, as this position may require holding such a clearance \nWilling to work at least 60% onsite from office \nTravel as required for project realization purposes \nSES is an Equal Opportunity and Affirmative Action Employer\n\nSES and its Affiliated Companies are committed to providing fair and equal employment opportunities to all. We are an Equal Opportunity employer and will consider all qualified applicants for employment without regard to race, color, religion, gender, pregnancy, sex, sexual orientation, gender identity, national origin, age, genetic information, protected veteran status, disability, or any other basis protected by local, state, or federal law.\nFor more information on SES, click here.","description_format":"text","description_chars":5471,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":false},"security_clearance":true,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Satellite Communications","Military Satellites","Satellite Manufacturing"],"lifecycle":[{"event":"open","at":"2026-10-13T08:05:40Z"}],"visa":[],"liveness":{"score":39,"band":"fade","label":"Fading","p_open":1,"p_active":0.704,"p_room":0.55,"age_days":5,"expected_fill_days":4,"reasons":["conf:2","velocity","win:tail","comp:brand"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/ses-senior-satcom-system-engineer-5g-ntn-iris2","json_url":"https://alion.io/job/ses-senior-satcom-system-engineer-5g-ntn-iris2.json","meta":{"generated_at":"2026-10-19T18:20:14Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":14213,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-20T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":54618},"rest":"https://alion.io/mcp/rest/get_company?id=54618"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fses-senior-satcom-system-engineer-5g-ntn-iris2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fses-senior-satcom-system-engineer-5g-ntn-iris2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fses-senior-satcom-system-engineer-5g-ntn-iris2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ses-senior-satcom-system-engineer-5g-ntn-iris2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fses-senior-satcom-system-engineer-5g-ntn-iris2"}]}