Senior Mechanical Engineer

We are seeking a highly experienced Senior Mechanical Engineer with a background in manufacturing or heavy industry to join our Whyalla team. 

The successful candidate will lead the planning, design, and execution of major mechanical engineering projects, ensuring compliance with Australian and international standards.

This role requires strong leadership, hands-on design expertise, and experience with engineering software and systems such as AutoCAD, SolidWorks, and SAP.

Employee Benefits:

• Comprehensive training and development – We invest in your skills through leadership programs, mentoring, technical upskilling, and nationally recognised qualifications.
• Competitive remuneration package – Including above-award pay, and performance-based incentives aligned with business outcomes.
• Stability and job security – Join an organisation with over 100 years of steelmaking heritage, backed by major government and private investment.
• Work-life balance – Predictable roster structure, onsite parking, and flexibility for professional and family commitments.
• Relocation support – Domestic relocation assistance, including moving costs, travel, and temporary accommodation.
• Access to long service leave after 5 years: Employees who are not covered by an Enterprise Agreement can access accrued Long Service Leave (LSL) at the rate of 1.3 weeks per year of service after 5 years continuous service.
• Employee Benefits Program: Our Employee Benefits Program, provides discounts for you and your family on gift cards, shopping, groceries, home products, car rentals, holidays, recreation and more
• Generous parental leave: 20 weeks paid Primary Carer Leave and 3 weeks paid Partner Leave for those who have worked at the business for at least 12 months. The company also provides superannuation contributions for the Primary Carer during the period of unpaid parental leave for eligible employees (limitations apply).

• Lead the mechanical engineering design, planning, and execution of major projects and capital projects in collaboration with multidisciplinary teams
• Manage contractors and subcontractors to ensure work is performed safely, on time, and within budget
• Provide technical guidance and mentorship to junior engineers and project teams
• Develop detailed mechanical designs using AutoCAD, SolidWorks, or other relevant software
• Ensure all mechanical designs and activities comply with Australian standards (AS/NZS) and other relevant codes
• Utilize SAP systems for project tracking, asset management, and procurement processes
• Coordinate and conduct technical reviews, quality assurance, and risk assessments
• Liaise with clients, suppliers, and stakeholders to ensure alignment of project objectives and deliverables
• Prepare and maintain comprehensive engineering documentation, including specifications, reports, and drawings
• Stay abreast of industry advancements and implement best practices to drive continuous improvement

• Bachelor's degree in mechanical engineering or a related discipline
• Over 10 years' proven experience in mechanical engineering, particularly in planning and executing major projects
• Extensive experience managing contractors and project teams
• Proficient in mechanical design software including AutoCAD and SolidWorks
• Well-versed in Australian standards and other international standards relevant to mechanical engineering
• Experience using SAP for engineering and project management functions
• Strong leadership, communication, and stakeholder management skills
• Chartered Engineer status (CPEng) with Engineers Australia is highly preferred

Personal Attributes:

• Proactive and self-driven with excellent problem-solving, analytical, and investigative skills
• Strong organizational skills with the ability to manage multiple priorities effectively
• Demonstrated ability to work effectively under pressure and meet tight deadlines
• Committed to safety, quality, and delivering outcomes that exceed expectations
• Collaborative and able to work effectively within multidisciplinary teams

OneSteel Manufacturing is proud to operate one of Australia's most critical mining and steel manufacturing businesses. As the nation's only producer of special grade billet and steel long products, we play a vital role in powering Australia's infrastructure — from rail networks to major construction projects.

Our Whyalla-based operations are backed by State and Federal Government investment, reinforcing our position as a cornerstone of Australia's sovereign manufacturing capability. These assets are not only essential to industrial resilience but also contribute to the long-term security and self-sufficiency of the nation's supply chain.

At OneSteel, we don't just manufacture steel — we help build the future of Australia.

It is our ambition to cultivate an inclusive workplace that is as diverse as the communities we serve. We encourage candidates from all cultural backgrounds, genders, orientations, age groups, and abilities to apply. Your diversity is our strength in creating sustainable and innovative steel solutions for Australia's tomorrow.

We are a 2025 Circle Back Initiative Employer – we commit to respond to every applicant.