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Presales Design Engineer – Battery Energy Storage (BESS) Brisbane preferred (remote considered for East Coast cities)
RedEarth is an Australian leading battery energy storage system (BESS) manufacturer – and we’re on a mission to accelerate the clean energy transition. Our smart, modular battery solutions are powering everything from homes to large commercial & industrial projects.
We’re looking for a technically skilled Design Engineer to join our growing team. This role sits at the intersection of engineering and sales – supporting EPCs, solar installers, and key channel partners with the technical expertise needed to design, model, and deliver high-performing battery energy storage systems (BESS) across residential, commercial & industrial (C&I;), and off-grid markets.
As the technical bridge between our customers and the sales team, you’ll bring projects to life – shaping system designs, running techno-economic models, preparing single line diagrams (SLDs), and contributing to compelling proposals and tenders.
If you’ve cut your teeth in EPC project delivery and want to leverage that experience in a pre-sales environment with a leading BESS manufacturer, this role is for you.
What You’ll Do
- Partner with the sales team and key accounts to understand customer needs, site conditions, and project challenges.
- Provide pre-sales technical support for EPCs and large solar installers, including feasibility studies, system design input, and customer presentations.
- Build techno-economic models using tools such as Orkestra and Gridcog, ensuring solutions are both technically sound and commercially competitive.
- Prepare BOMs, pricing analysis, SLDs, layouts, and schematics in line with CEC guidelines, Australian Standards, and grid/off-grid requirements.
- Support tender submissions with high-quality technical content and provide clarifications during evaluations.
- Collaborate with engineering, product, and operations teams to ensure proposed solutions are viable and optimized.
- Keep across evolving standards, competitor offerings, and market trends to keep our solutions best-in-class.
What You’ll Bring
- Bachelor’s degree in Electrical Engineering, Renewable Energy, or related discipline.
- 3–5 years’ experience delivering solar and/or battery projects in C&I; or off-grid environments.
- Background in EPC project design, delivery, or commissioning (essential).
- Bonus points for pre-sales or applications engineering experience with another BESS manufacturer.
- Proficiency in system modeling tools (Orkestra, Gridcog, or similar).
- Ability to design and interpret SLDs and technical documentation.
- Knowledge of grid interconnection, AS/NZS standards, CEC compliance, and battery safety.
- Strong communication skills – able to translate complex technical concepts into simple, explicit solutions for customers.
Why join us?
This is a chance to step into a role where your technical expertise directly shapes the clean energy transition. You’ll work with a passionate team, collaborate with top EPCs and installers, and play a central role in scaling renewable energy solutions across Australia.
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📌 Presales Design Engineer (BESS)
🏢 Aussie Founders Club
📍 Brisbane City