About Rootstone
Rootstone is a founder-led technology leadership partner built for organizations working on complex platforms where technical decisions carry long-term consequences. We bring senior technical judgment across definition, architecture, and delivery – helping teams move with clarity, ownership, and direction.
Clarity
Make decisions explicit and intentional.
Alignment
Move in the same direction, not just fast.
Ownership
Every critical decision needs a clear owner.
Experience Behind Rootstone
Premuditha Perera
Founder, Rootstone
Premuditha Perera is a technology leader with more than a decade of experience designing and delivering systems that operate at scale. His work spans fintech infrastructure, enterprise platforms, and consumer software products used by millions of people across global environments – where architecture, product decisions, and engineering execution must align under real-world constraints.
He has led engineering teams across regions, shaped technology strategy as a CTO, and contributed to critical software platforms for high-growth businesses and enterprise environments, including Fortune 500 companies.
“I believe technologies are tools, and tools change. What lasts are clear principles, strong engineering judgment, and the discipline to choose the right tools to solve real problems and create meaningful impact.”
Mangala Karunaratne
Director & Investor, Rootstone
Mangala Karunaratne is a seasoned technology entrepreneur, business builder, and investor with long-standing experience across software businesses and the startup ecosystem. Mangala and Premuditha have worked together in the technology space for more than a decade, bringing Rootstone a foundation of trust, industry judgment, and long-term strategic perspective.
