{"schemaVersion":"jobsearcher.job.v1","id":"e05f4af6fa61cbca2c4cc5c8","url":"https://jobsearcher.com/jobs/e05f4af6fa61cbca2c4cc5c8","canonicalUrl":"https://jobsearcher.com/jobs/e05f4af6fa61cbca2c4cc5c8","title":"Executive Assistant","description":"About Oso Semiconductor\nOso Semiconductor is a fast-growing early-stage fabless semiconductor company developing next-generation microchips for wireless communication and sensing. Founded by UC Berkeley PhDs, our proprietary microchip architecture delivers 2-4x power reduction for phased array systems across satellite communication (SATCOM), 5G, and radar. We've raised Series A funding, built our first chipsets, secured our first defense and commercial customers, and are preparing to scale the team 3X.\nThe Role\nAs Executive Assistant, you'll be the operational backbone that keeps the CEO and the company running smoothly. You'll manage the details so leadership can stay focused on building the company, while also acting as a trusted partner across HR, finance, legal, and daily operations.\nThis is a high-trust, high-ownership role for someone who thrives on organization, anticipates needs before they're spoken, and is comfortable wearing many hats in a fast-moving startup. Discretion is essential: you'll regularly handle confidential information across compensation, legal, and IP matters.\nResponsibilities\nAdministrative Tasks: Perform an array of administrative tasks (e.g., manage CEO's correspondence / calendars, book meetings/travel, plan events, etc.) as needed\nOperational Support: Support with ongoing company operations while improving efficiency and responsiveness. Help identify new operational weaknesses with CEO and team. Maintain office space and supplies\nHR Assistance: Support recruiting and retention activities. Help onboard new hires and offboard outgoing employees. Contribute to a positive and welcoming company culture.\nFinancial Support: Expense report, invoice processing, payroll coordination, PO management, and additional financial housekeeping\nLegal and Compliance Support: Contract management, tracking of relevant NDAs and IP filings\nVendor Management: Liaise with external partners, companies, and guests on behalf of Oso Semiconductor for scheduling of engagements, appointments, and any special requests\nRequired Qualifications\n5+ years as an executive assistant, office manager, or operations/admin support, ideally supporting a founder or C-suite leader.\nExceptional organization and attention to detail, with a track record of managing complex calendars, travel, and competing priorities.\nStrong written and verbal communication.\nProven discretion handling confidential and sensitive information.\nComfort with ambiguity and shifting priorities in a startup environment.\nProficiency with Google Workspace and the ability to quickly learn new tools.\nPreferred Qualifications\nExperience at a startup, deep-tech, or semiconductor company.\nExposure to HR, recruiting, finance ops, or bookkeeping.\nFamiliarity with tools like Gusto, Brex, QuickBooks, Carta, DocuSign, HubSpot, or Breezy.\nEvent planning experience.\nWhy Oso Semi?\nStart-up Impact: Have a direct impact on technology that could change the world.\nCentral Role: You'll be at the heart of the company, trusted with what matters most.\nMeaningful equity: A real stake with upside at our stage.\nUC Berkeley DNA: Founded by PhDs published in IEEE conferences and journals.\nFirst Principles Innovation: Multiple patents providing 2-4x reductions in power.\nEstablished Traction: Signed multi-year, high-volume customer agreements in defense and commercial markets (SATCOM, radar, and 5G).\nWhat We Offer\nEquity: Stock option grant with 4-year vesting and 1-year cliff.\nMedical, Dental & Vision: Comprehensive health coverage with employer-sponsored medical, dental, and vision plans.\nHybrid Schedule: Monday–Wednesday in office.\nTime Off: Unlimited PTO.\n401(k): Employer-matched retirement plan.\nTeam Culture: Regular team lunches, events, and celebrations.\nLife Insurance: Company-paid life insurance.\nFSA & HSA: Flexible spending and health savings account options available.\nCommuter Benefits: Pre-tax transit and parking benefits.","company":"Oso Semiconductor","rawCompany":"oso semiconductor","city":"Mountain View","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-08-03T19:34:54.618Z","occupations":[{"code":"43-6011.00","title":"Executive Secretaries and Executive Administrative Assistants","slug":"executive-secretaries-and-executive-administrative-assistants"},{"code":"43-6014.00","title":"Secretaries and Administrative Assistants, Except Legal, Medical, and Executive","slug":"secretaries-and-administrative-assistants-except-legal-medical-and-executive"},{"code":"43-9199.00","title":"Office and Administrative Support Workers, All Other","slug":"office-and-administrative-support-workers-all-other"}],"industries":[{"code":"334413","title":"Semiconductor and Related Device Manufacturing","slug":"semiconductor-and-related-device-manufacturing"},{"code":"334419","title":"Other Electronic Component Manufacturing","slug":"other-electronic-component-manufacturing"},{"code":"541715","title":"Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)","slug":"research-and-development-in-the-physical-engineering-and-life-sciences-except-nanotechnology-and-biotechnology"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Executive Assistant","description":"About Oso Semiconductor\nOso Semiconductor is a fast-growing early-stage fabless semiconductor company developing next-generation microchips for wireless communication and sensing. Founded by UC Berkeley PhDs, our proprietary microchip architecture delivers 2-4x power reduction for phased array systems across satellite communication (SATCOM), 5G, and radar. We've raised Series A funding, built our first chipsets, secured our first defense and commercial customers, and are preparing to scale the team 3X.\nThe Role\nAs Executive Assistant, you'll be the operational backbone that keeps the CEO and the company running smoothly. You'll manage the details so leadership can stay focused on building the company, while also acting as a trusted partner across HR, finance, legal, and daily operations.\nThis is a high-trust, high-ownership role for someone who thrives on organization, anticipates needs before they're spoken, and is comfortable wearing many hats in a fast-moving startup. Discretion is essential: you'll regularly handle confidential information across compensation, legal, and IP matters.\nResponsibilities\nAdministrative Tasks: Perform an array of administrative tasks (e.g., manage CEO's correspondence / calendars, book meetings/travel, plan events, etc.) as needed\nOperational Support: Support with ongoing company operations while improving efficiency and responsiveness. Help identify new operational weaknesses with CEO and team. Maintain office space and supplies\nHR Assistance: Support recruiting and retention activities. Help onboard new hires and offboard outgoing employees. Contribute to a positive and welcoming company culture.\nFinancial Support: Expense report, invoice processing, payroll coordination, PO management, and additional financial housekeeping\nLegal and Compliance Support: Contract management, tracking of relevant NDAs and IP filings\nVendor Management: Liaise with external partners, companies, and guests on behalf of Oso Semiconductor for scheduling of engagements, appointments, and any special requests\nRequired Qualifications\n5+ years as an executive assistant, office manager, or operations/admin support, ideally supporting a founder or C-suite leader.\nExceptional organization and attention to detail, with a track record of managing complex calendars, travel, and competing priorities.\nStrong written and verbal communication.\nProven discretion handling confidential and sensitive information.\nComfort with ambiguity and shifting priorities in a startup environment.\nProficiency with Google Workspace and the ability to quickly learn new tools.\nPreferred Qualifications\nExperience at a startup, deep-tech, or semiconductor company.\nExposure to HR, recruiting, finance ops, or bookkeeping.\nFamiliarity with tools like Gusto, Brex, QuickBooks, Carta, DocuSign, HubSpot, or Breezy.\nEvent planning experience.\nWhy Oso Semi?\nStart-up Impact: Have a direct impact on technology that could change the world.\nCentral Role: You'll be at the heart of the company, trusted with what matters most.\nMeaningful equity: A real stake with upside at our stage.\nUC Berkeley DNA: Founded by PhDs published in IEEE conferences and journals.\nFirst Principles Innovation: Multiple patents providing 2-4x reductions in power.\nEstablished Traction: Signed multi-year, high-volume customer agreements in defense and commercial markets (SATCOM, radar, and 5G).\nWhat We Offer\nEquity: Stock option grant with 4-year vesting and 1-year cliff.\nMedical, Dental & Vision: Comprehensive health coverage with employer-sponsored medical, dental, and vision plans.\nHybrid Schedule: Monday–Wednesday in office.\nTime Off: Unlimited PTO.\n401(k): Employer-matched retirement plan.\nTeam Culture: Regular team lunches, events, and celebrations.\nLife Insurance: Company-paid life insurance.\nFSA & HSA: Flexible spending and health savings account options available.\nCommuter Benefits: Pre-tax transit and parking benefits.","datePosted":"2026-08-03T19:34:54.618Z","dateModified":"2026-08-03T19:34:54.618Z","hiringOrganization":{"@type":"Organization","name":"Oso Semiconductor","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Mountain View","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"e05f4af6fa61cbca2c4cc5c8"},"url":"https://jobsearcher.com/jobs/e05f4af6fa61cbca2c4cc5c8"}}