# Shubham Pattojoshi

> Senior Frontend Engineer | React & TypeScript Architecture | Scalable, High-Performance Systems | Ex-Amazon

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/shubhampattojoshi

Senior frontend engineer with 7+ years building scalable React and TypeScript systems across healthcare, retail, and workflow-driven SaaS platforms.

My work spans cross-platform React Native applications, real-time dashboards, and web systems serving 10K+ to 1M+ users. I focus on frontend architecture, performance under real data and load, and designing UI systems that remain predictable as complexity increases.

I’m especially drawn to workflow-heavy and AI-native products where the frontend sits close to core logic and consequential user decisions. I value clean abstractions, resilient state management, and building systems that scale with both users and engineering teams.

## Work Experience
### Full Stack Engineer @ Compass Health Network
Jan 2024 – Present | Missouri, United States
- Leading end-to-end development of a cross-platform React Native (Expo) patient application and architecting the frontend of a provider platform serving 10,000+ users, designing scalable, HIPAA-compliant systems with secure role-based workflows.
- Built real-time, data-intensive interfaces using virtualization, memoization, and structured state management, reducing operational turnaround time by 70% while maintaining predictable performance under load.
- Established shared component systems, testing standards, and CI/CD quality gates to improve reliability, code health, and long-term maintainability across the frontend stack.
- Defined type-safe API contracts and resilient error-handling patterns to ensure stable integrations across distributed services.

### Software Engineer @ Tallyfy
Jan 2023 – Jan 2025 | St Louis, MO
- Led migration of a 100k+ LOC AngularJS system to Angular 18, re-architecting the application into modular, lazy-loaded domains and improving FCP by 35%.
- Optimized Next.js performance through route-based code splitting, dynamic imports, and SSR, improving Core Web Vitals and reducing load times by 40%.
- Architected a no-code workflow engine supporting complex, multi-step automation with asynchronous state transitions and optimistic UI patterns.
- Built a reusable component library to standardize UI patterns and accelerate feature delivery across teams.

### Frontend Engineer @ Amazon
Jan 2021 – Jan 2022 | Bengaluru
- Contributed to a mission-critical POS platform deployed across 10,000+ retail outlets, optimizing frontend performance for low-latency, high-reliability operations.
- Designed and implemented a modular component framework using Angular and Material Design, improving code consistency by 40% and accelerating feature development.
- Drove frontend security hardening and compliance initiatives, reducing security risk exposure by 30%.
- Mentored engineers on frontend architecture and code quality, improving QA outcomes and delivery standards.

### Frontend Developer @ Perpule
Jan 2020 – Jan 2021 | Bengaluru
(Acquired by Amazon)

- Built secure, multi-store e-commerce platforms for Starbucks, More Supermarket, Delhi Duty-Free, and FoodHall, reducing load times from 6s to 2s across high-traffic storefronts.
- Integrated payment gateways, ERP/POS systems, and middleware APIs (Express, Magento, ElasticSearch), improving time-to-market by 30%.
- Developed real-time reporting dashboards and offline order-sync capabilities to ensure operational continuity during network disruptions.
- Contributed to platform scalability and product maturity leading up to Perpule’s acquisition by Amazon.

### Frontend Lead @ WebElves
Jan 2019 – Jan 2020 | Greater Bengaluru Area
- Delivered 5+ SSR applications using Vue and Nuxt.js, improving SEO performance and increasing organic traffic by 20%.
- Implemented analytics integrations and real-time dashboards for 20+ clients, contributing to measurable improvements in user journeys and sales (+15%).

### Frontend Developer @ Trell
Jan 2018 – Jan 2019 | Bengaluru
- Scaled a React-based consumer application to 1M+ active users, increasing engagement by 25% through performance optimization and UX refinement.
- Built internal dashboards and tooling that reduced content management workflows by 75%.

### Frontend Developer @ Apogee Tech Global Inc.
Jan 2017 – Jan 2018 | Bengaluru, Karnataka, India
- Designed and developed UI architecture for ASYSTGUARD from scratch using React and Electron, shipping 10 production releases.
- Built cross-platform desktop applications and modular frontend components using JSX, CSS Modules, and Quasar framework.


## Education
### Master of Science - MS in Informatics
Indiana University Bloomington

### Bachelor of Technology - BTech in Computer Science
Vellore Institute of Technology


## Contact & Social
- LinkedIn: https://linkedin.com/in/shubhamprasanna
- GitHub: https://github.com/shubhamprasanna

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Source: https://flows.cv/shubhampattojoshi
JSON Resume: https://flows.cv/shubhampattojoshi/resume.json
Last updated: 2026-03-29