Niraj Kumar.
Product manager building
B2B SaaS in healthtech and fintech.

Building India's preventive-first integrated care ecosystem; PB Health acquired Fitterfly in Aug 2025.

• Own the commercial layer of partnership products: monthly revenue scaled from $36K to $60K in 2 months (67% growth) by redesigning partner onboarding, repricing the upsell flow, and tightening integrations.
• Lead multi-stakeholder enterprise rollouts across 6 partners: HDFC, Aditya Birla Health Insurance (ABHI), Star Health, PharmEasy, Docprime, and Policybazaar. Configurable per-partner onboarding flows, joint commercials, and shared retention metrics.
• Lifted user onboarding conversion by 30% through ops-process redesign and communication-flow overhaul; defended the revenue case to senior leadership before engineering build started.
• Drive lifecycle engagement and retention via MoEngage and CleverTap: notification orchestration, segmentation, and behavioural cohorting.
• Integrate Fitterfly's chronic-disease management programs (diabetes, obesity, cardiac) into PB Health's wider insurance and digital-health ecosystem.

AI-native operations platform so doctors can focus on treatments rather than ops.

• Advise on product roadmap and 0-to-1 launch priorities for the clinic-operations platform.
• Mentor the PM team on PRD structure, pricing experiments, and partner integrations.

Configurable B2B SaaS in digital therapeutics with multi-stakeholder rollouts (insurers, employers, end-users, coaches); insurance-led acquisition channel.

• Launched the in-app Store MVP, Fitterfly's first direct-purchase upsell surface: shipped pricing and packaging for 4 program tiers, generating $48K+ in revenue within 6 months of rollout with coach-led ARR held flat.
• Owned end-to-end product lifecycle for the Prime program (discovery, PRD, GTM): commercial sizing, pricing, and launch; lifted program sales by 10%.
• Designed and shipped a custom B2B partner PWA: configurable onboarding journeys for insurance partners; onboarded 10,000+ policyholders monthly.
• Led design and 0-to-1 launch of the DTx (Digital Therapeutics) backend platform, a configurable workflow product across 4 internal stakeholder roles; reduced coach handling time by 50%.
• Designed the Therapy Design Engine: a coach-less, adaptive intervention system that extended program reach beyond the high-touch coaching segment, opening a lower-cost commercial tier.
• Built in-app feedback flows that reshaped how the team understood and prioritised user needs.

Two parallel B2B SaaS ventures bootstrapped from zero: Legex (AI legaltech) and Inbooks (bookkeeping + in-house CFO services). YC W19 final-round finalist (top 5% of 10,000+).

• Co-founded and led Inbooks as PM, a parallel B2B fintech: bookkeeping + in-house CFO services platform with partner-led distribution at a 10 to 15% revenue-share program. Owned pricing, packaging, build-vs-buy on each integration, and the commercial reasoning behind every feature shipped. Scaled to 50+ paying businesses and $50K+ in revenue within 6 months.
• Co-led product on Legex, an AI-powered legal search engine (semantic search and ranking over Indian case law and statutes): cut research time by 2.5 days per case.
• Bootstrapped Legex to $120K+ in revenue within 24 months at 3% MoM MRR growth.
• Selected among the top 5% of 10,000+ startups for the Y Combinator W19 final interview round.
• Built internal automation tools for legal documentation and compliance, reducing service turnaround by 30%.
• Scaled the combined team to 8 engineers and 13 interns before acquisition.

PathWave electronic-design automation platform. Concurrent with the early bootstrapping of Legex.

• Contributed to the PathWave end-to-end automation framework for components and plugins.
• Built PathWave Foundation PVP verification and IPC connectivity for plugin-to-plugin communication.
• Set up Jenkins CI/CD with Kubernetes-based container orchestration.

Pre-Legex internships across consumer software and defence research.

• Software Developer, Debox Design (2017): built a cross-platform React Native app with a Google Assistant action to help students manage attendance.
• Research Intern, DRDO ISSA Lab (2016): used computer vision and linear algebra (Python) to compute optimal radar placement for max bomb-area coverage.