{"id":3786347,"url":"https://alion.io/job/onto-innovation-senior-software-engineer-12","title":"Senior Software Engineer","company":{"id":2025019,"name":"Onto Innovation","domain":"ontoinnovation.com","url":"https://alion.io/company/ontoinnovation","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":83,"open_postings":30,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":34,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Backend","role_family":"Backend","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":["Budd Lake, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":86400,"max":129600,"currency":"USD","period":"year","gross":null,"usd_annual":129600},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":".NET","optional":false},{"name":"Agile","optional":false},{"name":"C#","optional":false},{"name":"Git","optional":false},{"name":"Photolithography","optional":false},{"name":"Scrum","optional":false},{"name":"TCP/IP","optional":false}],"status":"closed","first_seen_at":"2026-11-04T00:00:00Z","employer_posted_date":"2026-11-04","last_verified_at":"2026-11-08T07:56:20Z","board_verified":false,"closed_at":"2026-11-08T07:56:20Z","days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"description":"Onto Innovation is a leader in process control, combining global scale with an expanded portfolio of leading-edge technologies that include: 3D metrology spanning the chip from nanometer-scale transistors to micron-level die-interconnects; macro defect inspection of wafers and packages; metal interconnect composition; factory analytics; and lithography for advanced semiconductor packaging. Our breadth of offerings across the entire semiconductor value chain helps our customers solve their most difficult yield, device performance, quality, and reliability issues. Onto Innovation strives to optimize customers’ critical path of progress by making them smarter, faster and more efficient.\nJob Summary & Responsibilities\nWe are seeking a highly skilled Senior Software Engineer to design, develop, and optimize low-level software components that power our next-generation systems. In this role, you will be engaged throughout the full software development lifecycle-from gathering and analyzing customer requirements to designing, implementing, and debugging software for advanced equipment in the semiconductor industry.\nDesign, develop, and maintain robust .NET applications using C# and WPF.\n\nCollaborate with cross-functional teams to translate customer needs into technical requirements.\n\nImplement client-server communication using WCF, TCP/IP, and other protocols.\n\nDevelop and integrate low-level hardware control interfaces via TCP/IP, serial, or other communication protocols.\n\nParticipate in code reviews, unit testing, and system integration.\n\nContribute to the continuous improvement of software architecture and development processes.\n\nMust be able to travel internationally to customer sites at least 20% of the time, with additional travel as business needs require.\n\nQualifications\nBachelor's or Master's degree in Computer Science, Mathematics, Physics, or a related Engineering discipline.\n\n5+ years of professional software development experience, with strong proficiency in .NET and C#.\n\nSolid understanding of object-oriented programming (OOP) principles, software architecture, and design patterns.\n\nHands-on experience with motion control systems and metrology tools.\n\nExperience designing and developing graphical user interfaces (GUI) using WPF.\n\nProficiency in client/server communication technologies, including WCF and TCP/IP.\n\nExperience interfacing with hardware using various communication protocols.\n\nFamiliarity with SEMI industry standards and semiconductor equipment software integration.\n\nWorking knowledge of Agile/Scrum development methodologies and source control tools such as Git.\n\nExcellent communication, collaboration, problem-solving, and time management skills.\n\nWhy Join Onto Innovation?\nAt Onto Innovation, we believe your work should matter-and so should your well-being. That’s why we offer competitive salaries and a comprehensive benefits package designed to support you and your family. From health, dental, and vision coverage to life and disability insurance, PTO, and a 401(k) with employer match, we’ve got you covered. You’ll also enjoy access to our Employee Stock Purchase Program (ESPP), wellness initiatives, and cutting-edge tools-all within a collaborative, inclusive culture where your contributions are valued and recognized.\nCompensation & Growth\nBase Salary Range:\n$86,400.00 - $129,600.00, offered in good faith and based on experience, location, and qualifications.Additional Rewards: Annual bonus opportunities and potential long-term incentives tied to both company and individual success.\n\nEmpowering Every Voice to Shape the Future:\nOnto Innovation is committed to creating a workplace where every qualified candidate has an equal opportunity to succeed. We evaluate applicants based on skills, experience, and potential - without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, veteran status, or any other characteristic protected by law. We believe diversity of thought and background drives innovation and strengthens our team.\nImportant Note on Export Compliance\nFor certain positions requiring access to technical data, U.S. export licensing review may be necessary for applicants who are not U.S. Citizens, Permanent Residents, or other protected persons under 8 U.S.C. 1324b(a)(3).","description_format":"text","description_chars":4314,"description_truncated":false,"requirements":{"experience_years_min":5,"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":["Test & Measurement Instruments","Semiconductor Equipment"],"lifecycle":[{"event":"open","at":"2026-11-05T03:48:07Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"H-1B filings in 12 months: 26 · green card filings: 12","filings_12m":26,"filings_prev_12m":20,"green_card_filings_12m":12,"median_offered_wage_usd":136184,"route":null,"cap_exempt":false,"checked_at":"2026-11-09T07:32:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":6}],"liveness":null,"pay":{"stated_usd_annual":129600,"is_top_pay":false},"html_url":"https://alion.io/job/onto-innovation-senior-software-engineer-12","json_url":"https://alion.io/job/onto-innovation-senior-software-engineer-12.json","meta":{"generated_at":"2026-11-10T04:30:36Z","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":10529,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":2025019},"rest":"https://alion.io/mcp/rest/get_company?id=2025019"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fonto-innovation-senior-software-engineer-12"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Fonto-innovation-senior-software-engineer-12"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Fonto-innovation-senior-software-engineer-12"},{"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/onto-innovation-senior-software-engineer-12\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fonto-innovation-senior-software-engineer-12"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3786347}},{"tool":"search_jobs","arguments":{"company":"ontoinnovation.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3786347},"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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