We are looking for a mid-level Cable Technician II to join our layer-one structured cabling team. This role builds on the copper foundation of Tech I and adds full proficiency in fiber optic installation, termination, and testing. The Tech II is expected to work independently across both media types, guide Tech I personnel on day-to-day installation tasks, and take ownership of moderately complex scopes from plan to acceptance. This is an onsite role in a cleanroom semiconductor manufacturing environment. The successful candidate will spend extended periods in a smock with required PPE, working from floor plans or ticket-driven scopes to deliver layer-one infrastructure that meets company and industry standards. Tech II has strong expectations towards hands-on execution, solid fiber skills, and the judgment to catch and escalate design or field issues before they become rework.   Responsibilities: Lead the installation, adjustment, and change of copper and fiber layer-one network connections for technical systems. Install, terminate, test, and troubleshoot Category 5e/6/6a copper cabling and single-mode and multi-mode fiber optic cabling for data infrastructure in a large enterprise environment. Terminate fiber across a range of interfaces and form factors (LC, SC, ST, APC) using both field-termination and pre-terminated methods; perform fusion and mechanical splicing as required. Test and certify fiber using industry-standard equipment (OTDR, OLTS, fiber inspection scopes) and interpret results to acceptance criteria. Properly comb, dress, and label copper and fiber cables in accordance with site and industry standards; enforce bend-radius and pull-tension discipline. Implement structured pathways per approved designs; identify physical constraints and propose field-practical corrections to the senior technician. Interpret floor plan designs and as-builts; redline field deviations and submit for incorporation into final documentation. Provide day-to-day direction and on-the-job training to Tech I personnel on copper and basic fiber work. Work from a request / ticket system, owning assigned scopes end-to-end including pre-job material checks, execution, and closeout documentation. Author and maintain Standard Operating Procedures (SOPs) for install, test, and acceptance workflows. Support the network team on hardware replacements, rack / de-rack activity, hotfix participation to resolve connectivity issues and scheduled change points. Support 24x7 data center and fab operation per on-call scheduling. Follow all on-site security protocols, Standard Operating Procedures, and company policies.