FAQ

Sahil Kapoor is an engineering leader and product builder from New Delhi, India. He is the founder of Open Theory Labs, a product and engineering company in Gurugram that he started in August 2026. Before that he was CEO of Hawk MarTech's technology arm from December 2022 to July 2026, and co-founder of CarInfo, which scaled to over 80 million downloads and 1 million daily active users.

Sahil runs Open Theory Labs, where he builds 0 to 1 products and scales them. He works hands-on across product strategy, system architecture, performance, and delivery.

He is known for co-founding CarInfo (80M+ downloads, 1M daily users) and for building consumer products across travel, media, and sports as CEO of Hawk MarTech's technology arm. In 2026 he founded Open Theory Labs.

Sahil has worked in product management, mobile and web engineering, and scaling consumer platforms. He built high-scale products at ixigo and Gojek and has led teams shipping across Android, iOS, web, and backend systems.

Most of his work sits between product and engineering, where shorter feedback loops and clearer trade-offs make teams ship faster.

The best way to contact Sahil Kapoor is via LinkedIn: linkedin.com/in/isahilkapoor.

Open Theory Labs (Open Theory Labs Pvt Ltd) is the company Sahil Kapoor founded in Gurugram in August 2026. He started it to give ambitious ideas better odds: make exploring an idea cheap, building it fast, and proving it normal.

Email [email protected] with the problem you are working on.

Hawk MarTech is a product studio in Gurugram that builds 0 to 1 products across consumer tech, travel, media, and sports. Sahil Kapoor was CEO of its technology arm from December 2022 to July 2026.

Sahil was Chief Executive Officer of Hawk MarTech's technology arm from December 2022 to July 2026. He led engineering and product execution: product direction, architecture, delivery, and quality across owned and client builds. He grew the team to over 50 engineers, product managers, and designers.

His role at Hawk MarTech ran from December 2022 to July 2026. Since August 2026 he has been running Open Theory Labs.

Lunarbounds is the company Sahil founded to build a real-money opinion trading app for cricket, news, politics, and entertainment. The app passed 1 million downloads and peaked at 20,000 concurrent traders. It shut down when India banned real-money gaming in August 2025.

Sahil Kapoor founded Open Theory Labs and Lunarbounds, and co-founded CarInfo.

CarInfo is a consumer mobility app that helps users with vehicle-related information and ownership tasks. It crossed 80 million downloads and scaled to more than 10 million monthly active users. Sahil co-founded it with Sahil Ajmani in June 2016 and exited in December 2022. Cars24 acquired CarInfo in January 2026.

Viacation is a client travel product built at Hawk MarTech, focused on trip discovery, itineraries, and planning.

Cricket Bazaar is a client sports media platform built at Hawk MarTech, delivering cricket news and insights.

OneTurf News is a client sports news and analysis platform built at Hawk MarTech.

Legendsport20.com is a client sports platform built at Hawk MarTech.

SG11 Fantasy is a client fantasy sports platform built at Hawk MarTech for cricket and football audiences.

At ixigo, Sahil built ixigo Flights and ixigo Trains from scratch. ixigo reached 30 million monthly active users in FY2019.

At Gojek, Sahil worked on GoFood, the food delivery service inside the Gojek super app, which had about 170 million users across Southeast Asia in 2020.

Product management and engineering, done by the same person. He covers product strategy, system design, performance, and execution, which means fewer handoffs between teams.

Most of his work is on scalable consumer systems, where product decisions and technical constraints have to be settled together from the start.

Android, iOS, React, Next.js, Node.js, and TypeScript. Most of his attention goes to performance, reliability, and system design that holds up at scale.

sahilkapoor.com is Sahil Kapoor’s official website. It hosts Sahil’s Playbook, which is both the site title and the newsletter, along with his background, projects, and long-form writing.

Sahil’s Playbook is the title of Sahil Kapoor’s site and newsletter. It covers what he has learned building and scaling products: product management, engineering leadership, system design, and how decisions get made.

Yes. sahilkapoor.com is Sahil Kapoor’s official site for his work, writing, and verified links.

You can find Sahil on LinkedIn here: linkedin.com/in/isahilkapoor.