Hariprasath Periyasamy

Key outcomes, newest role first. Select a number to see the work behind it.

1. May 2026 — Present
   Remote

   Principal Engineer · Autodesk

   Post-Purchase – Autodesk Account Subscriptions & Billing

   • As lead frontend engineer, own Autodesk’s personalized, AI-driven billing website, used by thousands of customers daily, and led frontend delivery of the flagship Account Subscriptions 3.0 redesign.
   • Originated a human-supervised AI on-call triage assistant that finds the failing layer and its owner, and took it through enterprise AI governance, security review, and AWS deployment with 1,200+ automated tests. How it works ↓
   • Documented the enterprise approval path for AI services so the next service owner can repeat it, lowering the barrier to shipping governed AI at Autodesk.
   • Launched an AI adoption forum across three teams, turning demos into a prioritized, owned backlog, and standardized a 10-server MCP tool stack and reusable agent skills.
   • Authored engineering standards and architecture proposals, including a UI readiness framework and a distributed tracing initiative, to raise quality across teams.
   • Strengthened the shared design system so product copy and visual changes ship without a package release, and built components for reuse by sister teams.

   • Applied AI
   • AI Governance
   • MCP
   • Design Systems

2. Aug 2025 — May 2026
   Remote

   Lead Full-Stack Engineer · Shopify

   • Led engineering for the Ads 3P team (real-time bidding, merchant dashboards, email/SMS automations), combining hands-on leadership with mentoring on frontend architecture, code quality, and delivery velocity.
   • Built a high-integrity event tracking solution across Web and Native platforms, ensuring reliable real-time signals for Meta Pixel and Google Tag Manager to improve merchant conversion tracking accuracy.
   • Developed a Dynamic Creative Optimization (DCO) system spanning frontend and backend layers, serving ad creatives within 150ms response time with full-stack ownership from UI rendering to data layer integration.
   • Contributed to the on-call rotation (weekly quarterly shifts), driving system health, security hardening, and engineering culture through structured code reviews and knowledge-sharing sessions.

   • Ads
   • DCO
   • Meta Pixel
   • Google Tag Manager

3. Jun 2022 — Aug 2025
   Boston, MA

   Senior Engineer · Amazon Web Services

   Amazon Ads – Full-Stack Digital Experiences

   • Designed and shipped Ads Data Manager, a cloud-based data onboarding and activation SPA using React, TypeScript, and GraphQL, delivering production-ready digital workflows for enterprise advertisers.
   • Implemented Backend-for-Frontend (BFF) middleware using GraphQL to stitch multiple microservice APIs, optimizing client-server communication and streamlining complex advertiser data flows.
   • Achieved a 60% reduction in backend API calls through GraphQL query batching and multi-level caching (client, CDN), reducing average response time from 850ms to 320ms under peak traffic.
   • Developed a Server-Driven UI architecture that delivered UI configurations from the backend, enabling real-time interface updates without client deployments and supporting A/B experimentation at scale.
   • Built a stream-based data ingestion interface enabling advertisers to upload and process large datasets via chunked streaming, improving performance and memory efficiency for high-volume workflows.
   • Led infrastructure provisioning with AWS CDK for secure self-service deployments across multiple accounts and regions, reducing deployment complexity and accelerating release cycles.

   AWS CloudWatch – Real-Time Monitoring & Observability

   • Engineered AI-powered anomaly detection dashboards that transformed complex ML outputs into intuitive visualizations and interactive tables, enabling non-technical users to identify log pattern anomalies.
   • Built a high-performance CloudWatch LiveTail system using WebSocket architecture and Web Workers, delivering real-time log streaming at 10,000+ events/second while maintaining a responsive UI.
   • Implemented an extensive telemetry system capturing client-side latency, API errors, and behavioral metrics to enable deep performance analysis and data-driven product decisions.

   • React
   • TypeScript
   • GraphQL
   • Server-Driven UI
   • AWS CDK
   • WebSockets

4. Sep 2021 — May 2022
   Boston, MA

   Senior Frontend Engineer · Sumo Logic

   • Led development of high-performance data analytics dashboards with a focus on rapid prototyping, iterative delivery, and cross-functional collaboration with product and design stakeholders. (Demo)
   • Detected and resolved JavaScript memory leaks in large-scale data visualization components using Chrome DevTools, reducing memory consumption by 25%.
   • Established a comprehensive design system using Atomic Design principles, enabling faster prototyping and consistent user experiences across the product suite.
   • Improved dashboard load times by 45% through tree shaking, lazy loading, and performance monitoring with well-defined SLIs.

   • Dashboards
   • Atomic Design
   • Chrome DevTools

5. Jan 2019 — Aug 2021
   Waltham, MA

   R&D Software Engineer · Dassault Systèmes

   • Designed, developed, and maintained a Web UI Template library for xApps (online CAD applications), creating reusable components consumed by all feature teams company-wide. (Demo)
   • Ensured full cross-platform compatibility for mobile and touch device workflows, delivering seamless user experiences across devices.
   • Optimized network performance through resource hinting, tree shaking, compression, and caching; enhanced runtime efficiency with Web Workers and LocalStorage strategies.

   • Web UI Library
   • Web Workers
   • Mobile & Touch

6. Jul 2014 — Nov 2016
   India

   Programmer Analyst · Cognizant Technology Solutions

   • Enhanced digital banking payment platforms, including Lloyds Bank Commercial Banking Online, with responsive, cross-browser, and accessibility-compliant interfaces for major financial services clients.
   • Designed and implemented a test automation framework across Chrome and Firefox, reducing manual testing efforts by 25% and streamlining QA workflows.

   • Banking
   • Accessibility
   • Test Automation