OSW Group is a quick growing global ecosystem of businesses united by a shared vision to accelerate the world's transition to smarter, more sustainable energy and technology solutions. Our portfolio includes
One Stop Warehouse (OSW)
,
GreenSketch
,
GreenDeal
,
Manta
and
Sunmine
, combining expertise across renewable energy, AI-powered software, energy finance and digital infrastructure to drive innovation on a global scale.
With operations across Australia, Singapore, China, Europe, the United States and Mexico—and continuing to expand into new markets,we're creating opportunities for ambitious people to build meaningful, international careers. While each of our businesses has its own unique focus, we're connected by a collaborative culture, entrepreneurial mindset and a passion for challenging what's possible.
When you join OSW Group, you're joining more than a company—you're becoming part of a global team that's shaping the future of clean energy and technology. We invest in our people, encourage fresh ideas, celebrate success and provide the opportunity to grow alongside a business that's only just getting started.
Solar and battery adoption is exploding — but after-sales support hasn't kept up. It's fragmented across homeowners, installers, retailers and manufacturers, with no single source of truth when something goes wrong.
Manta is fixing that. We're combining technical expertise, device data, troubleshooting SOPs, warranty workflows and AI to build the after-sales service layer this industry actually needs — and you'd be helping shape how we solve technical problems from here.




What you'll actually do:
Diagnose issues across residential solar PV, hybrid inverters and battery energy storage systems
Read and interpret SOC and charging/discharging behaviour, solar generation vs. household load, and grid import/export data
Work through inverter and battery alarms, CT and smart meter readings, RS485 comms issues, and remote monitoring platforms
Handle firmware, configuration, operating modes and commissioning questions
Manage warranty troubleshooting and RMA cases through to resolution with manufacturers
Turn recurring cases into clear, reusable troubleshooting SOPs and stronger technical knowledge
Help train installers and technical support teams on what you know
Contribute to improving AI-assisted technical support quality over time
You'll be a strong fit if you have:
Solar and OEM experience (essential), ideally across multiple inverter or battery brands
Experience with a solar/battery manufacturer, distributor or major retailer
Multi-brand technical support or warranty/RMA management experience
A track record of building technical SOPs, knowledge bases or training material for installers/support teams
Comfort with CRM, ticketing or case-management systems
An electrical, solar or engineering qualification (an electrical licence is a bonus, not essential)
Curiosity about AI-assisted support or digital service platforms
Sharp attention to detail and a genuine commitment to technical accuracy
If you've ever been the person your team calls when a battery is doing something weird — this is your next role.
#J-*****-Ljbffr

📌 Technical Manager - Solar & Battery (Sydney)
🏢 One Stop Warehouse
📍 Sydney