{"id":254075,"url":"https://alion.io/job/cesiumastro-senior-rf-engineer-ii-2","title":"Senior RF Engineer II","company":{"id":5315,"name":"CesiumAstro","domain":"cesiumastro.com","url":"https://alion.io/company/cesiumastro","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":84,"open_postings":40,"ghost_share":0,"stale_share":0.625,"repost_share":0,"time_to_fill_p50_days":47,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Cambridge, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":63000,"max_usd":115000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":41},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"MATLAB","optional":true}],"status":"live","first_seen_at":"2026-07-21T14:30:34Z","employer_posted_date":"2026-07-21","last_verified_at":"2026-10-30T23:23:02Z","board_verified":true,"closed_at":null,"days_open":101,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":101},"description":"We are looking to add a Senior RF Engineer II to our team. The ideal candidate has experience in board-level RF electronics design. If you enjoy working in a startup environment and are passionate about developing leading-edge RF hardware for satellites, spacecraft, and aerospace systems, we would like to hear from you.\nIn this position, you will be responsible for RF circuits and systems through all phases of the development process. The ideal candidate will be proficient in board-level schematic design and PCB layout of RF circuits, and system-level communications concepts such as link budgets and modulation schemes. The work will include many aspects of phased array communication systems, including RF front-ends, frequency converters and synthesizers, filters, beamformers, power dividers, and phased array antennas.\nAs a Cesium hardware team member, you will be responsible for RF hardware designs from initial concept through requirements definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products. Hardware design tasks will include block diagrams, detailed schematics, PCB layout and routing, simulations, and test design.\nThe successful candidate will also present engineering design review materials to our customers and executive team, as well as participate in proposal-writing efforts. As such, excellent written and verbal communication skills are required.\nJOB REQUIREMENTS AND MINIMUM QUALIFICATIONS\nA Bachelor of Science (BS) or Master of Science (MS) degree in Electrical Engineering (EE) from an accredited university or institution.\n6+ years of industry experience in design and analysis of RF electronics design, analysis, test, and troubleshooting. \nExperience with professional simulation tools such as CST and ADS, as well as EDA tools such Altium.\nHands-on experience with lab instruments such as vector network analyzers, spectrum analyzers, signal generators, and oscilloscopes.\nExcellent written and verbal communication skills.\nPREFERRED EXPERIENCE\nExperience with MATLAB or other programming languages.\nExperience in aerospace electronics design, development, and qualification.\nKnowledge of worst-case circuit analysis, failure method and criticality analyses, and reliability analysis.\nExperience with antenna design.\nKnowledge of EMI/EMC design and mitigation techniques.","description_format":"text","description_chars":2390,"description_truncated":false,"requirements":{"experience_years_min":6,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Embedded & Electronics Design","Satellite Communications","RF & Wireless Hardware"],"lifecycle":[{"event":"open","at":"2026-09-05T11:13:44Z"},{"event":"close","at":"2026-10-09T16:08:39Z"},{"event":"reopen","at":"2026-10-09T19:16:51Z"}],"visa":[],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.471,"p_room":0.28,"age_days":100,"expected_fill_days":47,"reasons":["seen:100","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-30T05:48:23Z"},"pay":null,"html_url":"https://alion.io/job/cesiumastro-senior-rf-engineer-ii-2","json_url":"https://alion.io/job/cesiumastro-senior-rf-engineer-ii-2.json","meta":{"generated_at":"2026-10-30T23:27:53Z","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":14765,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"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":5315},"rest":"https://alion.io/mcp/rest/get_company?id=5315"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcesiumastro-senior-rf-engineer-ii-2"},{"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%2Fcesiumastro-senior-rf-engineer-ii-2"},{"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%2Fcesiumastro-senior-rf-engineer-ii-2"},{"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/cesiumastro-senior-rf-engineer-ii-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcesiumastro-senior-rf-engineer-ii-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":254075}},{"tool":"search_jobs","arguments":{"company":"cesiumastro.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":254075},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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