# Shandheap Shan > Founding Engineer @ Pax AI (YC S24) | ex-Amazon, Google Location: San Francisco, California, United States Profile: https://flows.cv/shandheap Founding Engineer at Pax, building the first AI-powered broker for import tariff refunds that turns a slow, opaque process into something fast, automated, and delightful. Before Pax, I built tooling for Google Distributed Cloud air-gapped, a version of Google Cloud that runs entirely on-premises for governments and enterprises. Prior to that, at Amazon I built logistics optimizations that saved millions annually and improved delivery performance for tens of thousands of orders. ## Work Experience ### Founding Software Engineer @ Pax Jan 2024 – Present | San Francisco, California, United States Building the first AI powered broker for import tariff refunds. Technologies used: Nextjs, React, Typescript, Python, FastAPI, Docker, LLMs ### Software Engineer @ Google Jan 2022 – Jan 2024 | Sunnyvale, California, United States Built system tooling for Google Distributed Cloud Hosted (GDCH), a completely disconnected on-premises cloud solution targeted for governments and enterprises who need complete ownership of data. Technologies used: Go, Kubernetes ### Software Development Engineer @ Amazon Jan 2019 – Jan 2022 | Greater Vancouver Metropolitan Area Supported and implemented features on Amazon’s system of distributed services that are responsible for scheduling and optimizing physical deliveries for customer orders. Technologies used: Java, Ruby, Python, SQL, Linux, Big Data, SOA, AWS ### Full-stack Developer @ GrowerIQ Jan 2018 – Jan 2019 | Toronto, Canada Area • Gathered user requirements for data acquisition and visualization (analytics) and prototyped user interactions and experience for analytics. • Implemented analytics module for the platform, including database scripts, api endpoints and frontend data visualization components. • Individually rewrote database, backend and frontend architecture in Docker, resulting in a significant reduction in developer on-boarding time and providing resilient systems for the cloud. Technologies used: Python, Angular, TypeScript, PostgreSQL, Docker, HTML & CSS. ### Software Developer @ Swyft Jan 2018 – Jan 2018 | Colombo, Western, Sri Lanka • Gathered user requirements and designed data models on PostgreSQL for the core product. • Implemented the core product as a full-stack web application using Ruby on Rails and React. • Deployed the web application to AWS Elastic Beanstalk, growing from 0 to 100+ SMBs on the platform. Technologies used: Ruby on Rails, React, AWS. ### Software Developer Intern (Web and Mobile) @ EventMobi Jan 2014 – Jan 2015 | Toronto, Canada Area • Fixed a critical server bug resulting in 90% reduced load time on the mobile application for large events • Worked as a full-stack developer writing code for handling resources (pdf, excel, word and images) across the mobile application and content manager • Rewrote back-end legacy PHP API for resources into Python and Node APIs, resulting in higher test coverage and increased ease of adding new features to the API. • Rewrote and redesigned the front-end components into AngularJS, leading to improved user interface and experience Programming languages used: Python, Node, AngularJS, PHP, HTML & CSS. ### Co-Founder @ Instuguide Jan 2014 – Jan 2014 | Toronto, Canada • Prototyped the initial user interface and user experience for presenting our idea to business partners and clients • Implemented the MVP as a webapp in Python and AngularJS as a proof of concept • Participated in the UofT Hatchery 2014 startup incubator program Programming languages used: Python, Flask, AngularJS, HTML & CSS. ### Software Developer Intern @ Mitra Innovation Jan 2013 – Jan 2013 | Moratuwa, Sri Lanka Designed and programmed an informative website to help provide funding and consultation for youth entrepreneurs. Programming languages used: HTML, CSS, Javascript & jQuery. ### Software Developer Intern @ Virtusa Jan 2012 – Jan 2012 | Dematagoda, Sri Lanka Designed, tested and implemented a sub-module of the Akura platform, an open-source school organizational web platform. Programming languages used: Java, HTML & Javascript. ## Education ### Honours Bachelor of Applied Science (B.A.Sc.) with Distinction in Specialist in Computer Science and Minor in Math University of Toronto ## Contact & Social - LinkedIn: https://linkedin.com/in/shandheap --- Source: https://flows.cv/shandheap JSON Resume: https://flows.cv/shandheap/resume.json Last updated: 2026-04-05