Product engineering
Building enterprise workflows that remain clear to use, testable to change, and dependable in production.
- React
- TypeScript
- Ruby on Rails
- REST APIs
Hitesh Patwari Engineering systems with a human point of view
Lead engineer · Fremont, California
I build software that makes complex work easier to move through.
I'm a lead engineer with 15+ years across enterprise SaaS, cybersecurity, and developer platforms. I build production AI workflows, resilient product systems, and tools that make engineering teams more effective.
Impact that shows up in the work.
- 15+ years
- Across enterprise SaaS, security, and developer platforms
- 47% leaner
- Main React component after a UI modernization
- 81% coverage
- Following independently testable component boundaries
- <5 min recovery
- For database failover and switchover operations
How I work
I care about the connection between a useful product and the system that makes it reliable.
I am drawn to work where product context, user experience, and implementation details have to agree. That can mean an enterprise workflow, a mobile interface, an LLM-powered document flow, or a focused internal tool.
I work best where reliability and speed need to coexist: reducing data-integrity risk, making AI-assisted delivery measurable, and leaving the next team with a system they can reason about.
Capabilities
A broad engineering lens, grounded in the work.
AI delivery systems
Making LLM and agent-assisted workflows measurable, bounded, and safe enough for real engineering teams.
- GPT-5
- Azure OpenAI
- AWS Bedrock
- Claude Code
Reliability and data integrity
Finding failure modes in concurrent systems, then creating the controls, tests, and observability to prevent them.
- Concurrency
- Deterministic testing
- New Relic
- StatsD
Technical leadership
Turning ambiguous implementation work into sound plans, effective reviews, and maintainable systems.
- Design reviews
- Mentoring
- CI/CD
- Developer productivity
Selected work
I turn complex needs into dependable product and engineering systems.
Three proof stories: human-centered product judgment, measurable engineering rigor, and reliable AI delivery.Flagship personal product · Evoke Ink
Helping a curious reader show what she understood.
I built Evoke Ink for my family after seeing how often my child finished books without an easy way to explore what she had understood. It is a local-first web and Android app that turns a reading session into thoughtful comprehension prompts and printable writing activities, while keeping AI generation inside a controlled boundary.
- ContextA curious child who reads a lot needs better questions—not another quiz—to make comprehension visible.
- DecisionA bounded AI flow turns a parent's reading-session context into focused prompts without making the experience another app to manage.
- ResultA printable, low-friction activity helps a parent see how their child is making sense of what they read.
More public work
Decision-support product
SellerMargin
Fee uncertainty into pricing decisionsEngineering platform
Agent Org
A traceable path from plan to acceptancePrivacy-first utility suite
QuickKit
Sensitive input with local processingWeb + mobile app
NutriClock
One domain engine across web and mobileChromium extension
Capital One Offers Miles Sorter
Offer context while reordering dense commerce UIExperience
Fifteen years of systems that need to hold up.
A career across enterprise SaaS, cybersecurity, data reliability, developer platforms, and production AI workflows.Lead Engineer, Supply Chain Collaboration
Coupa Software
I build reliable enterprise workflows across product engineering, production LLM systems, AI-assisted delivery, data integrity, and UI modernization.
- Engineered production LLM workflows for supplier emails and PDFs, including configurable extraction, multi-PO handling, and outcome-based intake.
- Re-architected a complex order-confirmation UI into 10 independently testable React components, reducing main-component size 47%, cyclomatic complexity 53%, and raising coverage from 62% to 81%.
- Built a repeatable AI delivery workflow with seven hook-enforced stages, 77 unit tests, 19 evaluations, and provider-comparison validation.
- React
- TypeScript
- LLM systems
- Reliability engineering
Senior Software Engineer II
Synack, Inc.
Worked across cybersecurity-platform engineering, delivery process, mentoring, and application modernization.
- Led and mentored four engineers while partnering with product leaders on roadmap feasibility, technology upgrades, and delivery practices.
- Increased release cadence from weekly to twice weekly through better pull-request practices, CI, and continuous testing.
- Cybersecurity
- Mentoring
- CI/CD
- Platform engineering
Software Engineer II
eBay, Inc.
Built operational tooling and observability for database reliability at enterprise scale.
- Built database failover and switchover tooling that reduced recovery time by approximately 97% to under five minutes.
- Developed real-time database health monitoring and received eBay Exceptional Contribution recognition.
- Database reliability
- Operational tooling
- Monitoring
Software Engineer Trainee
Symantec Corporation
Contributed to consumer-security product features and operational reporting automation.
- Built Norton Anti-Theft and ID Safe features, password-strength checks, and Java/shell reporting tools.
- Security products
- Java
- Automation
EducationM.S., Software Engineering · San Jose State University · 2013
B.E., Computer Science · SVCE, India · 2008
Recognition
eBay Exceptional Contribution · eBay Team Appreciation · Infosys On the Spot Award (FY 2010-11)
Get in touch
Have a role, problem, or product worth discussing?
I'm always glad to connect with people who care about thoughtful software and the judgment behind it.
Fremont, California