About Us At NEPEAN™ we are proud to be Australia’s leading privately owned engineering, mining services and industrial manufacturing organisation. We have unique capabilities to deliver high value, innovative and sustainable solutions for the world’s leading mining, construction, and transport companies. Over the last 40 years, hard work, technical credibility, and a willingness to tackle very difficult projects have earned NEPEAN an enviable reputation. Today our organisation employs over 1400 people across six continents and distributes products to more than 65 countries. NEPEAN Power specialises in high‑quality electrical industrial equipment. Our products can be found throughout the Australian and international mining, construction, and industrial sectors. The Opportunity We are seeking an experienced Senior Estimator to join our team in Thornton. This role is integral to supporting NEPEAN Power’s continued growth within the Energy & Infrastructure sectors, with a strong focus on modular switchrooms, prefabricated electrical buildings, and engineered power distribution solutions . Reporting to the Sales & Marketing Manager , you will lead the preparation of complex estimates and tender submissions, ensuring accuracy, commercial competitiveness, and alignment with customer and project requirements. Key Responsibilities Lead detailed estimating for Energy & Infrastructure projects , including modular and prefabricated electrical solutions Review technical specifications, drawings, and customer requirements to produce accurate costings Prepare high‑quality tender submissions, schedules, pricing documents, and supporting material Identify commercial and technical risks and provide informed recommendations to support bid decisions Collaborate with engineering, manufacturing and project teams to validate scope, timeframes and constructability Liaise professionally with customers to clarify requirements, provide updates, and support technical discussions Maintain accurate estimating records and CRM data Provide guidance and mentoring to junior or developing estimators within the team About You We are looking for a Senior Estimator who brings: Strong experience in estimating for Energy & Infrastructure projects Experience in modular switchrooms, prefabricated electrical buildings , electrical distribution, or industrial power systems Excellent analytical and problem‑solving skills Outstanding written and verbal communication Strong attention to detail and organisational capability Ability to work autonomously and contribute to strategic tendering decisions Professional presentation and a strong customer‑centric approach Why NEPEAN Power? Join a respected Australian engineering organisation with a proud legacy, modern manufacturing capability, and a commitment to innovative, practical solutions. You will work on high‑value critical infrastructure projects and contribute to delivering essential power systems across Australia and beyond NEPEAN believes in diversity and is committed to providing Equal Employment Opportunities for all applicants. We welcome applicants from all walks of life including Aboriginal and Torres Strait Islander peoples, culturally diverse communities, women, and LGBTIQ individuals.