• Drove large-scale global expansions, leading Bermuda onboarding to enable signups across 68 countries , resulting in $61.8M AUM . Took end-to-end ownership for multiple regulatory and onboarding projects, making Coinbase the first compliant crypto exchange in Canada, preventing a $50M/year loss.

• Built and optimized user engagement features, launching first-trade sharing, fixing long-standing legacy bugs , and increasing social engagement. Created detailed runbooks, documented best practices , and improved onboarding experiences through A/B experiments. ($25M/year revenue uplift )

• Integrated Zengin payment rails in Japan and led the migration of Payments API, enabling deposits and withdrawals across all banks and facilitating 364M JPY in transactions within 4 months, and improving trade conversion rates.

• Mentored 3 interns , developed monitoring systems for performance tracking and anomaly detection to minimize downtime. Strengthened community outreach by securing university partnerships and presenting workshops to foster developer engagement.

• Built and scaled the Node.js backend and React.js UI for PayPal’s Collections platform, consolidating all delinquency collection products into a unified system, handling delinquencies of $1B/year and enabling expansion into Germany, Spain, and Italy .

• Optimized performance by implementing React lazy-loading, code-splitting, and progressive image loading, reducing load times by 50% and improving UX.

• Modernized the codebase by migrating class-based components to modular functional components with Hooks , enhancing maintainability.

• Ensured high reliability by developing and shipping components with comprehensive unit and functional testing, improving system robustness.

• Engineered highly responsive, mobile-optimized web interfaces for key financial products like KYC, Postpaid, and Insurance in Ola Money.

• Ensured seamless integration with the native Ola app across diverse viewports.

• Owned projects end-to-end , frequently acting as the sole developer to build, deploy, and scale critical features from scratch, using Vue.js and React.js.

• Developed a real-time collaborative shopping cart functionality, built using React.js, Redux and a real-time database powered by Cloud Firestore.

• Created a URL endpoint that could be shared and the shopping cart could be modified by those accessing the endpoint, in real-time.

• Open sourced at https://github.com/codebu5ter/collaborative-cart