{"id":1100905,"url":"https://alion.io/job/littelfuse-sr-electricalelectronic-engineer","title":"Sr. Electrical/Electronic Engineer","company":{"id":6289,"name":"Littelfuse","domain":"littelfuse.com","url":"https://alion.io/company/littelfuse","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":75,"open_postings":26,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":50,"computed_at":"2026-09-26T05:45:00Z"}},"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":"explicit","locations":["Cádiz, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":57000,"max_usd":122000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":978},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-09-10T00:00:00Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-09-26T20:23:44Z","board_verified":true,"closed_at":null,"days_open":17,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":17},"description":"Littelfuse (NASDAQ: LFUS) is a diversified industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy. Headquartered in Chicago, Illinois, USA, we serve customers across industrial, transportation, and electronics markets worldwide. With approximately 16,000 employees we design and manufacture innovative technologies that support electrification, energy efficiency, and advanced automation. Our global reach is matched by a culture that empowers innovation and long-term growth. Guided by our principles We Care, We Succeed With Our Customers, and We Own the Outcome, we work collaboratively, think boldly, and deliver solutions that move industries forward.\nWe are looking for an experienced Senior Electronics Engineer to lead the design, development, testing, and support of advanced electronic systems from concept through to production. Based in Cádiz, Spain, you will be part of the R&D development team, working on electronic protection and safety products, with a strong focus on Residual Current Devices (RCDs), ground-fault detection devices, and related protective functions used in low-voltage electrical systems. This role offers the opportunity to contribute across the full product lifecycle-from concept and design through prototyping, validation, certification, and production support-while collaborating with multidisciplinary engineering teams.\nAbout the job:\nElectronics Design & Development\nDesign, develop, modify, and evaluate electronic systems and subsystems for protection and safety products\n\nDefine design approaches, architectures, and key parameters to meet performance and compliance requirements\n\nCircuit Design\nCreate detailed schematics, perform circuit analysis, and run simulations to validate designs\n\nApply strong expertise in both analog and mixed-signal circuit design\n\nPCB Development\nLead and/or oversee PCB design activities, including signal integrity, power distribution, and thermal considerations\n\nComponent Selection\nEvaluate and select electronic components based on performance, reliability, availability, and cost\n\nTesting & Validation\nPlan and execute prototype testing, analyze results, troubleshoot issues, and iterate designs\n\nEnsure designs meet performance, reliability, and safety standards\n\nCross-functional Collaboration\nWork closely with firmware, mechanical, and test engineers to ensure seamless system integration\n\nDocumentation & Compliance\nDevelop and maintain technical documentation, including design specifications, test plans, and reports\n\nEnsure compliance with applicable standards and certification requirements (IEC, CE, UL, etc.)\n\nAbout you:\nBachelor’s degree (or higher) in Electrical Engineering, Electronics Engineering, Telecommunications, or a related field\n\nMinimum 7 years of experience in electronics design and development\n\nStrong foundation in analog and digital electronics\n\nProficiency with schematic capture and PCB layout tools (Altium preferred)\n\nExperience with mixed-signal design\n\nStrong communication skills in English, with experience working in international environments\n\nPreferred Qualifications:\nExperience with RCD technologies (Type A, Type B)\n\nExposure to Arc Fault Detection (AFD / AFDD) technologies\n\nExperience in embedded hardware design and collaboration with firmware teams\n\nFamiliarity with simulation tools and analysis applications\n\nKnowledge of Python or other scripting languages for testing or data analysis\n\nUnderstanding of certification and compliance processes (CE marking, IEC, UL, etc.)\n\nExperience in pure analog circuit design and testing\n\nAt Littelfuse, we support employee growth and development. Guided by our culture principles, our teams work together to deliver value for customers and make a positive impact in the communities where we operate. We are an equal opportunity employer committed to fostering an inclusive workplace where everyone has the opportunity to grow and contribute. We offer competitive compensation and benefits, performance-based incentives, flexible work arrangements, and development opportunities.","description_format":"text","description_chars":4114,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Flexible schedule"],"hiring_locations":[{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Manufacturing"],"lifecycle":[{"event":"open","at":"2026-09-21T22:33:21Z"}],"liveness":{"score":58,"band":"ok","label":"Likely open","p_open":1,"p_active":0.582,"p_room":1,"age_days":16,"expected_fill_days":50,"reasons":["conf:4","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-09-26T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/littelfuse-sr-electricalelectronic-engineer","json_url":"https://alion.io/job/littelfuse-sr-electricalelectronic-engineer.json","meta":{"generated_at":"2026-09-27T03:36:06Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3392,"day_limit":5000,"remaining_today":1608,"minute_limit":60,"resets_at":"2026-09-28T00:00:00Z"}}}