This summary statement highlights the application of Competency Element PE 1 in the career episodes of an engineer working on projects related to Passive Optical Analyzer, C Band Erbium Doped Fiber Amplifier, and Square Ring Microstrip Patch Antenna. The engineer has applied comprehensive theory-based understanding of the natural and physical sciences and engineering fundamentals applicable to the discipline. They have also demonstrated conceptual understanding of mathematics, numerical analysis, statistics, and computer and information sciences. The engineer has utilized their in-depth understanding of specialist bodies of knowledge within the engineering discipline and discernment of the products. They have also shown knowledge of contextual factors impacting the engineering discipline and understanding of the scope, principles, norms, accountabilities, and bounds of contemporary engineering practice within their projects. Additionally, the engineer has demonstrated their engineering application ability by designing the facility properly, applying engineering techniques, tools, and resources, and applying systematic approaches to the conduct, management, and operation of the engineering projects. Lastly, the engineer has shown their professional and personal attributes by maintaining ethical conduct and accountability, effective oral and written communication in professional and lay domains, creative and innovative pro-active demeanour, professional use and management of information, orderly management of self and professional conduct, and effective team membership and team leadership.