{"id":4205272,"url":"https://alion.io/job/apple-phy-systems-engineer","title":"PHY Systems Engineer","company":{"id":12,"name":"Apple","domain":"apple.com","url":"https://alion.io/company/apple","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Apple Jobs","truth_index":{"grade":"A","score":94,"open_postings":1125,"ghost_share":0.001,"stale_share":0.036,"repost_share":0.02,"time_to_fill_p50_days":148,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Diego, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"MATLAB","optional":false},{"name":"Python","optional":false},{"name":"Claude","optional":true},{"name":"Machine Learning","optional":true},{"name":"PyTorch","optional":true},{"name":"TensorFlow","optional":true},{"name":"TensorFlow C++","optional":true}],"status":"live","first_seen_at":"2026-11-12T23:19:56Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-13T17:29:33Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"We are searching for a talented engineer to join our cellular systems engineering team of innovators. In this role, you will be a key member of modem systems engineering team with a broad view of the end-to-end baseband modem.\nDescription\nDesign and simulate state-of-the-art physical layer wireless communication algorithms, realizable with power and area efficient implementation.\nImplement system models and perform detailed performance investigations to allow performance sign-off and enable RTL development.\nCollaborate with hardware digital designers and firmware developers to bring-up and productize whole modem designs.\nMinimum Qualifications\nBachelors Degree in EE or equivalent.\nKnowledge of digital signal processing and design flow methodology.\nExperience in Matlab, C/C++ and/or Python for algorithm development, modeling (floating-point and fixed-point) and link-level simulation.\nAnalytical skills (linear algebra, random processes, detection and estimation, etc.)\nPreferred Qualifications\nDeep-knowledge of communication system theory (MIMO detection, estimation, mmWave, 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