Ownership and Impact
Team members have direct autonomy over their tasks, make meaningful decisions, pitch actionable ideas, and collaborate closely with the leadership team to drive high-quality outcomes.
Build the tools the solar industry needs. Work with engineers and customers who care about getting the future of energy right.
We are made of engineers of all sorts: we work on software, hardware and solar assets. We solve real problems in renewable energy. Your work goes straight into how EPCs across Malaysia operate. You will ship features that real customers use, and you will see the difference they make.
Life at Rooftop Energy
Value-Driven Culture
Day-to-day operations and decisions are strictly guided by the core PRIDE values: Passion, Respect, Integrity, Determination, and Excellence.
Active Growth and Expansion
Operating from Dataran Prima, Petaling Jaya, the company is actively expanding its physical office space and aggressively hiring new engineers and software developers.
We are looking for precision-driven engineers and builders with strong fundamentals who take full ownership of their work and thrive in a fast-paced, yet careful, team environment.
Interested in joining us?
View open roles
Our Team
Lucas Tan Zhen Hui
Chief Executive Officer
Co-founder. His focus is the systems behind the systems: tools proven on Rooftop Energy’s own live projects, then put in the hands of the EPCs the company builds for.
Tristan Lim Wen Han
Founding Product Manager
Leads the software platform solar EPCs use to run a project from the first deal to a finished installation. He owns product strategy and the roadmap, and built it alongside Lucas from the first version.
Ahmad Zamir Bin Ahmad Zamri
Chief Engineer (EPC)
Runs delivery, from system design and procurement through to construction. He takes the view that a project is judged on how it performs long after handover.
FAQ
Common questions
Everything you need to know about working with Rooftop Energy.
What is Rooftop Energy?
We're a Malaysian solar company specialising in solar engineering, procurement, and construction (EPC) for residential, commercial, and industrial buildings. We are also a technology company. We develop the software RooftopIQ: a multi-use solar software with modules covering a wide range of tools. RooftopIQ is aimed at EPCs, and helps them boost efficiency and improve their margins.
How do I apply for a solar project with Rooftop Energy?
The process is straightforward. Start by submitting your project details through our application form on this website (your location, roof condition, energy usage, and what you hope to achieve). We'll review your submission within 5–7 working days. If your project is a good fit, we'll schedule a call to discuss next steps, answer your questions, and outline a timeline. No hidden steps. No surprises.
Who is eligible for a Rooftop Energy solar project?
You need a suitable roof or land area (generally 50 m² minimum for residential, more for commercial projects). Your roof should be in good structural condition and face a direction that captures adequate sunlight, typically north-facing or east-facing in Malaysia. We also require a valid business registration or personal identification, and a clean utility account history. If you're unsure whether your property qualifies, apply anyway. We'll assess it during the review process.
How much will my solar system cost, and how much can I save?
Costs vary based on system size, roof complexity, and local grid conditions. Most of our residential clients see savings of 40–60% on electricity costs within the first year. We provide a detailed financial proposal after the initial assessment, showing your investment, expected monthly savings, payback timeline, and 25-year performance projections. This gives you the numbers you need to make an informed decision. No guesswork.
How long does installation take?
Once your project is approved, installation and setup takes 3–4 months. That breaks down to 2–3 weeks for design and permitting, 4–6 weeks for procurement and fabrication, and 2–3 weeks for installation and grid connection. We keep you updated at every stage. Once your system is live, monitoring and maintenance are handled by our team. You'll see real-time performance data through our RooftopIQ platform, accessible 24/7 on any device.