Explore B2 Line Certifying Engineer jobs and discover a pivotal aviation career at the heart of aircraft safety and airworthiness. A B2 Line Certifying Engineer is a licensed aviation maintenance professional specializing in the electrical, avionic, and instrument systems of aircraft. Operating primarily in a line maintenance environment, which involves routine checks, transit inspections, and defect rectifications while the aircraft is on the ground between flights, these engineers ensure aircraft are legally and technically safe for service. Their signature certifies that work complies with strict national and international aviation regulations, making them personally accountable for the airworthiness of the systems under their purview. The core responsibility of a B2 Line Certifying Engineer is to perform, supervise, and certify maintenance tasks on aircraft avionics and electrical systems. This typically involves troubleshooting complex faults using diagnostic equipment, interpreting wiring diagrams and technical manuals, repairing or replacing components, and conducting functional tests. They carry out scheduled and unscheduled maintenance, from daily checks to more detailed inspections, ensuring all work is documented accurately in the aircraft technical log. A significant part of the role involves making critical, real-time decisions to resolve technical issues to minimize aircraft downtime, often working under pressure to meet operational schedules. They also play a key role in managing tooling, ensuring workshop cleanliness, and upholding the highest safety and compliance standards within the maintenance facility. Typical requirements for these specialized jobs are stringent. The fundamental qualification is holding a valid national aviation authority license, such as an EASA Part-66 or equivalent B2 license. This license category specifically covers electrical and avionic systems. While type ratings on specific aircraft are highly valuable and often required, the foundational skill set includes deep theoretical and practical knowledge of digital and analogue systems, navigation and communication equipment, and aircraft electrical power generation and distribution. Employers seek individuals with proven experience in a line maintenance setting, strong analytical and problem-solving skills, and meticulous attention to detail. Excellent communication is essential for coordinating with flight crews, maintenance planners, and team members. Flexibility, the ability to work independently and as part of a team, and a steadfast commitment to safety are universal prerequisites. For licensed engineers seeking a dynamic, hands-on role with direct responsibility, B2 Line Certifying Engineer jobs offer a challenging and rewarding career path ensuring the continual airworthiness of the global fleet.