Experienced Part 21 Electrical / Avionics Engineer Frimley, England Hybrid Permanent A leading global aerospace engineering services organisation is seeking an Experienced Part 21 Electrical / Avionics Engineer to join their growing EASA Part 21J Design Organisation team in Frimley. This role will focus on the certification and integration of electrical and avionics modifications for large commercial aircraft, supporting airline operators worldwide. The Role Working within the electrical and avionics engineering function and collaborating with colleagues across multiple time zones, you will: Lead and contribute to design activities, ensuring compliance with regulatory and customer requirements. Address certification and integration issues relating to electrical and avionics systems changes. Conduct certification activities, including on-wing test witnessing. Prepare and review engineering documentation such as: Wiring diagrams and harness fabrication drawings Installation drawings and wire routing Service Bulletins and accomplishment instructions Instructions for Continued Airworthiness (ICA) including wiring diagram and schematic manuals, EWIS assessments Compile and check compliance documentation including electrical load analysis, test plans/reports, safety assessments, equipment qualification and certification programmes. Represent the organisation at technical meetings (ITCM, PDR, CDR, FAI) and provide on-site support during project embodiment. Support the mentorin