Mechanical Engineer Job Location: Richmond or Bourke Street, Melbourne, VIC– We offer a range of hybrid and flexible working arrangements. Who we are: Join BAE Systems and you'll be part of something bigger. As a valued member of our global colleague network, you'll bring your unique skills and perspectives to help pioneer progress and protect what matters most. You'll be trusted to play your part in delivering the advanced, technology-led defence, aerospace and security solutions of tomorrow - shaping a safer future, for all of us. From the depths of the ocean, to the far reaches of space - there's no limit to where a career at BAE Systems could take you. Role Description: We are seeking a highly motivated Mechanical Engineer to join our ESSM (Evolved Sea Sparrow Missile) Program. This role is suited to an engineer with a strong technical foundation, a proactive approach to problem-solving, and a proven ability to take ownership and deliver results in a complex engineering environment. Reporting to the Full Rate Production (FRP) Engineering Team Lead, you will play a key role in supporting the design, development, and sustainment of critical defence products. You will apply your engineering expertise to develop practical solutions, resolve technical challenges, and support production and product improvement activities across the ESSM Program. Core Duties: * Provide support to manufacturing engineering and production operations to resolve production issues, material review boards, configuration control board and variances * Design changes and technical data package (TDP) maintenance for existing missile systems, sub-assemblies and components * Design and sustainment of automated test equipment systems to facilitate automated factory acceptance test (FAT) of missile sub-systems and components * Engineering developmental test and evaluation (DT&E) and analysis to substantiate design change, including opportunities to take place in trials * Support the Quality Assurance function with technical investigation and analysis into material review board (MRB), failure review board (FRB), Failure Reporting, Analysis and Corrective Action System (FRACAS) and root cause, containment and corrective actions (RCCA) * Undertake mechanical system and/ or equipment requirements analysis and participate in requirements reviews * Liaise with both internal and external stakeholders as required ensuring that their requirements are adequately supported and that their needs are fully considered and incorporated where appropriate and agreed Essential Skills: * Bachelor's Degree in Mechanical or Mechatronic or Aeronautical Engineering * Engineering accreditation (NER, CPEng) or eligibility to obtain * Defence security clearance or eligibility to obtain * Demonstrated experience as a professional engineer * Missile or weapons system mechanical design experience highly desirable * Experience working in high-volume or rate-production environments highly desirable * Knowledge of AS9100 quality standards, First Article Inspections (FAIs), and Advanced Product Quality Planning (APQP) processes highly desirable * Eligibility to be cleared for International Traffic In Arms (ITAR) regulations The ESSM Team The Evolved SeaSparrow Missile (ESSM) is a medium-range, surface-to-air missile developed to protect warships from advanced anti-ship cruise missiles. Why BAE Systems? Here you'll build a career with purpose and limitless possibilities. With lifelong learning and meaningful work - this is a place where you can grow your career with confidence and be empowered to be your best. You'll be recognised for your contribution and enjoy rewards tailored to what's most important to you and your family - support for your financial and personal wellbeing, as well as a balanced lifestyle. In an environment embracing sustainable ways of working and with a strong sense of shared purpose, our supportive culture is a place you can feel you belong and proud of the difference you make. A place where everyone can thrive We're committed to building an inclusive workplace where everyone feels valued and supported. We know that a diversity of backgrounds, perspectives and experiences strengthens our teams and is vital to the work we do. We support our veteran community through VetNet Australia, along with initiatives such as Reserve Service Leave, a Veteran Mentoring Program, and partner-supported programs. We welcome applications from all candidates and strongly encourage Aboriginal and Torres Strait Islander peoples to apply. We are proud to be recognised as an employer of choice for women by WORK180 and recipients of the Benchmarcx Top Employer for Candidate Experience Excellence 2026. As members of the Circle Back Initiative, we commit to responding to every applicant. If you require any reasonable adjustments during the recruitment process, please contact our recruitment team to discuss the support you may need. You can also connect with us via Careers and Employment. Security statement Please note, as a defence security clearance is required for this role, applicants must be Australian citizens and either possess or be eligible to obtain and maintain one. Further information regarding security clearances International Traffic in Arms Regulations (ITAR) are applicable and as such, your nationality may be a factor in determining your suitability for this role. Please visit this webpage for more information.