{"id":3700054,"url":"https://alion.io/job/salience-labs-photonic-component-modelling-engineer","title":"Photonic Component Modelling Engineer","company":{"id":2029320,"name":"Salience Labs","domain":"saliencelabs.ai","url":"https://alion.io/company/saliencelabs","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Semiconductors","role_family":"Semiconductors","seniority":"middle","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Oxford, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Linux","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"TCL Scripting","optional":true}],"status":"live","first_seen_at":"2026-11-03T17:57:41Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-09T01:07:27Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"About Us\nSalience Labs is building an industry-defining approach to optical circuit switching for AI infrastructure, engineered for real latency reduction and cost savings. We’re moving towards real-world deployment, and joining at this stage means genuine ownership over that next chapter, working alongside a highly technical team on one of the most consequential problems in AI infrastructure today.\nAbout the Role\nWe’re looking for a Photonic Component Modelling Engineer to build and qualify behavioral and compact models that accurately capture the underlying device physics. Your models will be the foundation for system-level verification of systems that combine photonic and electronic components.\nYou’ll need to understand how a component’s behavior shifts with its surrounding optical and electrical circuitry and with operating conditions.\nWhat You’ll Do\nWorking closely with the system verification, photonic design, and photonic characterization teams, you will:\nDevelop and maintain models of optical primitives (modulators, switches, photodetectors, couplers, etc.) for simulation and system verification environments\n\nVerify that models accurately represent device physics across process, voltage, and temperature (PVT) corners\n\nRelease models that pass defined QA criteria\n\nVerify PDK component libraries so that PDK updates and process variations don’t break circuit-level simulations\n\nExtract model parameters from lab measurements and work with characterization to correlate simulation with measurement\n\nBuild and maintain automated tooling (Python and/or MATLAB) for parameter extraction, model fitting, and regression tracking\n\nMaintain regression suites so model and PDK changes are checked against reference data before release\n\nResolve model discrepancies found at system level and feed model-based design risks back to photonic design\n\nKeep reproducible records: version-controlled models, scripts, reference data, and QA results\n\nWhat You Bring\nRequired\nMS/PhD (or equivalent experience) in photonics, electrical engineering, applied physics, or a related field\n\n3+ years of experience in photonic component design and/or simulation\n\nSolid understanding of integrated photonic building blocks, both passive and active, and their electrical drive requirements\n\nStrong scripting ability (Python and/or MATLAB) for model fitting, data analysis, and simulation/measurement correlation\n\nComfortable working in Linux and with version-controlled repositories\n\nStrong documentation habits, including model specifications, QA reports, and traceability from reference data to released models\n\nClear communication and a collaborative approach across disciplines\n\nNice to have\nExperience modelling signal propagation in photonic integrated circuits\n\nHands-on experience with silicon photonics platforms\n\nExperience with optical/photonic simulation tools (e.g., FDTD, mode solvers, circuit-level simulators)\n\nFamiliarity with foundry PDK-based photonic design flows\n\nTcl scripting","description_format":"text","description_chars":2995,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Optical Communications","Optics & Photonic 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