Lead Customer Solution Engineer

Lead technical design and optimisation of large-scale battery and solar projects.Ensure projects meet safety, quality, and customer expectations.Sydney basedJoin a team that's All Kinds of UsefulAt Origin, being useful is more than a tagline - it's how we approach work every day. As a collective, we're a team that thrives on finding better ways, working together, and owning our impact. From powering homes to delivering award-winning internet and helping to lead Australia's energy transition. If you're driven by purpose and excited to be part of something bigger, we'd love to have you on the journey.About The RoleAs aLead Customer Solutions EngineerinOrigin Zero's Engineering & Deliveryteam, you'll help design and deliver renewable energy systems that power a cleaner future.Your primary focus will be thedesign, optimisation, and delivery of commercial-scale Battery Energy Storage Systems (BESS), with additional involvement in C&I solar system design. You'll take projects from concept through detailed design and costing, ensuring safe, efficient, and high-quality outcomes for our customers.This is an opportunity to apply your engineering expertise to shape the next generation of distributed energy solutions — working alongside a collaborative, passionate team that values innovation, technical excellence, and safety.Key ResponsibilitiesLead technical design and decision-making for commercial-scale battery systems, optimising cost, performance, and reliability.Develop detailed electrical and system designs in accordance with Australian Standards and regulatory requirements.Oversee Safety in Design assessments and lead technical review meetings for commercial battery and solar projects.Contribute to PV and energy solution tender processes, including concept design, detailed documentation, and budget development.Partner with Business Development to shape compelling technical and commercial offers for customers.Coordinate with internal teams, consultants, and contractors to deliver practical, cost-effective, customer-focused solutions.About YouYou're an experienced engineer with a deep understanding of renewable energy systems and a passion for sustainable innovation. You combine strong technical design skills with commercial insight and enjoy leading complex projects from concept to completion.You'll bring:5+ years' experience designing and delivering commercial BESS (>100 kW) and solar PV systems (>100 kW).Strong knowledge of Australian Standards, DNSP connection requirements, and safety frameworks.Proficiency with PVSyst, Helioscope, and AutoCAD (or similar design tools).Demonstrated ability to develop accurate cost estimates from concept through delivery.Excellent problem-solving skills and a collaborative, customer-focused mindset.Origin - Where good change happensAt Origin, we're powered by people who believe in creating change.We are committed to fostering a diverse, gender equitable workforce, where everyone is welcome, and all applications are evaluated on merit and potential. We encourage applications from Aboriginal and Torres Strait Islander Peoples, people living with disabilities, culturally diverse people, any stage in life, people with intersex variations and people within LGBTQ+ communities, including trans and gender diverse.Enjoy a challenging career in an exciting industry where you can grow and explore your potential. If you think you have transferable skills, an appetite to learn and would be a great fit, we'd love to hear from you.Here's a little about us: Background checks may be required to determine your suitability for this position as part of the recruitment process and during your employment. These checks may include police checks, AusCheck, medical assessment and/or drug and alcohol testing.Please note unsolicited CVs from agencies will not be accepted.Origin recognises Aboriginal and Torres Strait Islander Peoples as the Traditional Custodians of country throughout Australia, and we pay our respects to Elders past, present and future.Function: Engineering Support