ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future.
Job Description
ACCIONA Mechanical & Electrical is a specialist division within ACCIONA, delivering end-to-end mechanical and electrical design, construction, installation and commissioning services that support the transition to a low-carbon future.
With a strong presence across Australia, we contribute to some of the nation’s most impactful infrastructure projects — from renewable energy and transmission networks to sustainable transport systems and water infrastructure. Our work is grounded in ACCIONA’s global commitment to sustainability, innovation, and social progress.
We’re looking for passionate professionals who want to help shape a better planet through smarter, cleaner infrastructure. If you’re ready to be part of a purpose-driven team building the foundations of a more sustainable Australia, we’d love to hear from you.

Benefits

• Australian Location – Flexible depending on the applicant’s location
• Annual pay review and discretionary bonus
• Professional development opportunities
• Income protection
• Salary packaging and Novated leases
• Competitive paid parental leave

The Position
ACCIONA is seeking a highly experienced and motivated Principal Engineer – Transmission Lines to lead the design, development, and delivery of high-voltage transmission infrastructure across Australia.
In this role, you’ll lead complex engineering projects, provide expert guidance on HV design standards and compliance, and ensure all solutions meet regulatory, safety, and quality requirements. You’ll collaborate closely with multidisciplinary teams — including civil, structural, primary systems, and power systems engineers — to deliver integrated, future-ready infrastructure for clients in the power, renewable energy, and transport sectors.
Working within an EPC or D&C environment, you’ll gain invaluable experience across the full project lifecycle, including construction and commissioning, while contributing to projects that support Australia’s transition to a more sustainable energy future.

Key Responsibilities

• Manage the full design lifecycle of complex systems, from concept through integration and validation including resolving design conflicts and ensuring systems meet performance, reliability, and regulatory standards
• Apply RAM principles to enhance system maintainability, availability, and reliability
• Use advanced modelling and simulation tools to validate complex system designs, lead Value Engineering and Whole of Life assessments to improve cost-effectiveness and sustainability
• Review and validate technical documentation against project and industry standards, oversee compliance with Design Controls and Engineering Management Systems
• Mentor teams on design controls and systems engineering, proactively improving design quality and efficiency
• Lead problem-solving efforts for complex technical challenges, balancing project constraints such as cost, time, and quality,
• Diagnose performance deficiencies, conceive and design remedial measures and predict performance of modified systems, proactively identify and address design flaws and construction issues, aiming to optimise project performance

Required Skills and Competencies

• Bachelor’s Degree in Electrical Engineering
• Chartered Status (including RPEV, RPEQ, NER & CPEng), or the ability to achieve within 6 months of commencing, is desirable
• 10+ years’ senior experience in transmission line design (including 220kV or higher), with a preference given for candidates with 5+ years in field-based roles
• Advanced PLS-CADD skills (up to 500kV preferred) with working knowledge of PLS-Tower
• Strong knowledge of HV transmission, substations, and relevant standards
• Tier 1 or Tier 2 contractor and/or TNSP experience is highly regarded

ACCIONA Mechanical & Electrical is growing, and we’re excited about what’s ahead. If this particular role isn’t the right fit for your skills and experience, but you have a background in transmission or substations, we’d still love to hear from you. Reach out directly to Michelle Ackland at michelle.ackland@acciona.com — we’re always keen to connect with passionate professionals who share our vision for sustainable infrastructure.
ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia, which certifies the company’s commitment to excellence in human resources management and those who focus on putting their people first through their exceptional HR policies. Since establishing a presence in Australia in 2002, ACCIONA has made significant investments in local opportunities and project development. ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand.
We are an Equal Opportunity Employer and promote equality and diversity. Indigenous Australians and candidates from minority groups are encouraged to apply

• Manage the full design lifecycle of complex systems, from concept through integration and validation including resolving design conflicts and ensuring systems meet performance, reliability, and regulatory standards
• Apply RAM principles to enhance system maintainability, availability, and reliability
• Use advanced modelling and simulation tools to validate complex system designs, lead Value Engineering and Whole of Life assessments to improve cost-effectiveness and sustainability
• Review and validate technical documentation against project and industry standards, oversee compliance with Design Controls and Engineering Management Systems
• Mentor teams on design controls and systems engineering, proactively improving design quality and efficiency
• Lead problem-solving efforts for complex technical challenges, balancing project constraints such as cost, time, and quality,
• Diagnose performance deficiencies, conceive and design remedial measures and predict performance of modified systems, proactively identify and address design flaws and construction issues, aiming to optimise project performanc