{"id":106525,"url":"https://alion.io/job/formfactor-sr-principal-signal-integrity-engineer","title":"Sr Principal Signal Integrity Engineer","company":{"id":4792,"name":"FormFactor","domain":"formfactor.com","url":"https://alion.io/company/formfactor","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":16,"ghost_share":0,"stale_share":0.688,"repost_share":0,"time_to_fill_p50_days":48,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Hardware","role_family":"Hardware","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Beaverton, United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":115800,"max":151935,"currency":"USD","period":"year","gross":null,"usd_annual":151935},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Ansys SIwave","optional":false},{"name":"Ansys HFSS","optional":true},{"name":"Cadence Allegro","optional":true},{"name":"MATLAB","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-06-16T00:00:00Z","employer_posted_date":"2026-06-16","last_verified_at":"2026-10-18T05:28:17Z","board_verified":true,"closed_at":null,"days_open":124,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":124},"description":"Forming Our Future together\nFormFactor, Inc. (NASDAQ: FORM), is a leading provider of essential test and measurement technologies along the full semiconductor product life cycle - from characterization, modeling, reliability, and design de-bug, to qualification and production test. Semiconductor companies rely upon FormFactor’s products and services to accelerate profitability by optimizing device performance and advancing yield knowledge. The company serves customers through its network of facilities in Asia, Europe, and North America.\nRooted in our core values - Focus on the Customer, Ownership & Accountability, Respectfully & Effectively Communicate, and Motivate & Develop People - we foster an environment where diverse perspectives are not only welcomed but celebrated. Everyone can make an impact here. Whether it's improving products, supporting customers, or positively influencing peers and the community, the contributions of our people matter.\nShift:\nThe regular hours for this position are day shift.Job Description:\nIn the role of Sr Principal Signal Integrity Engineer, you will be responsible for completing tasks on time and solving short- and long-term problems. You will be part of a technical group, responsible for improving SI/PI performance, completing production design analysis, and measurement and characterizing. This role will be working with customers and engineers across multiple sites, California US, Europe and Asia Regions.\nKey Responsibilities:\nDesign & Analysis\nPerform signal and power integrity analysis for high-speed interconnects (PCB, package, MLO, probe card).\n\nDevelop and validate electrical models for Transmission lines, vias, connectors, and PDN (Power Distribution Network) structure.\n\nDefine stack-ups, impedance targets, and routing constraints.\n\nEvaluate and optimize Reflections, insertion/return loss, and Crosstalk and jitter performance.\n\nSimulation & Modeling\nUse EM and circuit tools (e.g., HFSS, ADS, SIwave, PowerSI) for Frequency-domain and time-domain analysis.\n\nBuild system/channel models (e.g., IBIS-AMI, eye diagrams).\n\nRun what-if studies to optimize performance and reduce design risk.\n\nTesting & Validation\nDefine and execute SI validation plans using VNA, TDR, TDT and high-speed measurement setups.\n\nDefine test fixtures and correlation structures.\n\nDrive simulation-to-measurementcorrelation and root cause analysis.\n\nDrive design improvements based on measured data.\n\nDesign Support & Collaboration\nProvide design guidelines, constraints, and best practices to layout teams and electrical design engineers.\n\nCollaborate globally with engineering teams and customers.\n\nSupport new product development programs (e.g., probe cards, load boards).\n\nContinuous Improvement & Innovation\nImprove modeling methodologies and design workflows.\n\nReduce simulation cycle time and improve design quality.\n\nStay current with High-speed interfaces (PCIe, HBM, SerDes), and Emerging packaging and interconnect technologies.\n\nContribute to next-generation architecture and roadmap development.\n\nPreferred Qualifications:\nBS/MS in Electrical Engineering (or related field).\n\n8+ years of relevant experience in SI/PI analysis and design.\n\nStrong understanding of: Transmission line theory, Power integrity principles, Crosstalk and signal degradation mechanis.\n\nExperience with tools such as: HFSS, ADS, SIwave, PowerSI, PowerDC, SPICE, Allegro, MATLAB.\n\nHands-on experience with measurement tools (VNA, TDR/TDT).\n\nExperience with high-speed interfaces (PAM4, SerDes, PCIe, HBM).\n\nScripting/automation (Python, MATLAB).\n\nExperience in advanced packaging, probe cards, or fine-pitch interconnects.\n\nSkills:\nAllegro PCB Designer, ANSYS HFSS, Cadence Tools, High Speed Interfaces, MATLAB, Power Distribution Design, Power Integrity, PSpice Circuit Simulation, Python (Programming Language), SERDES, Signal Integrity, Signal Integrity Analysis, Transmission Line DesignEducation & Experience:\nMinimum of 8 years of related experience with a Bachelor’s degree; or 6 years and a Master’s degree; or a PhD with 3 years experience; or equivalent experience | RequiredPay Range:\n$115,800.00 - $151,935.00Pay Range Explained:\nThis role in Beaverton, Oregon pays between $115,800.00 and $151,935.00 per year, depending on your experience, skills, and background. Pay may vary in other locations. We offer a full benefits package, including medical, dental, vision, life insurance, disability coverage, a 401(k) with company match, employee stock purchase plan (ESPP), and paid time off. You’ll also be eligible for quarterly profit-sharing bonuses and flexible spending or savings accounts.Equal Employment Opportunity Statement\nFormFactor is an equal opportunity employer. FormFactor complies with all national, state, and local laws that seek to promote equal opportunities for any applicant or employee without regard to age, race, color, gender, gender identity/expression, national origin, sexual orientation, religion, disability, marital status, pregnancy or related condition, military service, or any other legally protected characteristics. These protections apply to all aspects of employment, including but not limited to, recruitment, hiring, training, promotions, and compensation.\nFor roles that are designated as remote-eligible, employees cannot be located in: AL, AK, AR, DE, GA, HI, IL, IA, KY, LA, ME, MD, MS, MO, NE, NV, NJ, NM, ND, OK, PA, RI, SC, SD, TN, WV, WI, WY. This list is continuously evolving and being updated, please check back with us if the state you live in is on the exclusion list. 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