Sudhanshu Jha
Senior Product Engineer
5+ years building product systems in environments where revenue, reliability, and user trust are on the line. My background spans fintech, Web3 payments, marketplace infrastructure, and high-growth consumer products — with a strong technical edge in frontend architecture, async state modeling, and integration-heavy workflows. I'm most useful where the product is complex, the stakes are real, and the work requires both engineering depth and product judgment.
Impact
$100M+
monthly transaction volume
Mesh
Fintech / Web3 Payments
Led frontend and workflow architecture for payment-critical flows. Designed async journeys across crypto and fiat rails, external integrations, and high-trust financial UX.
20,000+
vendors on one platform
Wayfair
Marketplace Infrastructure
Owned vendor-facing platform supporting a 30M+ product catalog. Drove monorepo migration and standardized architecture across 8+ product teams.
~35%
reduction in user drop-offs
Fanclash
Consumer Platform
Performance and product overhaul that cut drop-offs and scaled active users from 50k to 200k+ — shipped under real growth-stage pressure.
Experience
Senior Product Engineer
2025 – 2026·Remote
Led frontend and workflow architecture for payment-critical flows supporting $100M+ in monthly transaction volume. The work involved designing reliable async state machines, coordinating external integrations across crypto and fiat rails, and ensuring production-grade behavior in high-trust financial contexts.
- Owned end-to-end architecture for multi-step payment and transfer flows across crypto and fiat rails
- Designed async workflows with robust state handling across external integrations and blockchain networks
- Introduced E2E testing and performance monitoring in revenue-critical user journeys
Software Engineer II
2023 – 2025·Remote
Worked on marketplace infrastructure powering 20,000+ vendors and a 30M+ product catalog — focused on scalability, maintainability, and cross-team architectural consistency in a large distributed product org.
- Architected marketplace platform features for catalog management and vendor operational workflows at scale
- Led monorepo migration of legacy systems, improving deployment reliability and team velocity
- Standardized shared frontend patterns across 8+ teams to reduce duplication and accelerate delivery
SDE II
2022 – 2023·India
Owned product execution across a fast-growing consumer platform — from feature scoping to production — while improving core performance metrics and scaling the frontend to support rapid user growth.
- Reduced user drop-offs by ~35% through performance and UX improvements across high-traffic product flows
- Scaled platform from 50k → 200k+ active users while maintaining frontend stability during rapid growth
- Owned cross-platform feature delivery in React Native end to end — from scoping to production — across iOS and Android in a fast-moving consumer product
Earlier
Software Development Engineer
Wakao2021 – 2022·India
Built CMS and content moderation systems supporting operational workflows
Full Stack Developer
Spark Esports2021·India
Contributed to MVP delivery across frontend and backend systems in a startup environment
Frontend Engineer
eFeed2021·India
Built React and React Native features for a real-time marketplace product
Web Developer
Webloom Solutions2020·India
Delivered client-facing e-commerce solutions end to end
Skills
Product Systems
APIs & Integrations
Reliability & Quality
Performance & Delivery
How I Work
Workflow Architecture
The hardest product problems are usually workflow problems. I design async flows that handle the messy middle — partial failures, external dependencies, and edge cases — not just the happy path.
Integration-First Thinking
Real product systems talk to external services constantly. I design for integration failures, retries, and degraded states from the start — not as an afterthought.
Reliability Over Cleverness
Users trust systems that behave predictably. I spend as much care on error states as success states, and prefer boring, legible code over smart code that surprises teammates.
Frontend Architecture
Good frontend architecture ages well. Separate concerns clearly, keep state close to where it's needed, and design component APIs that are hard to misuse.
Product Execution
Engineering judgment matters most when tradeoffs are unclear. I ask about impact before scope, ship incrementally, and measure what changes — not just what shipped.