Abheet Singh Isher

Owned features end to end across five repositories of an AI writing product used by 10M+ weekly active users: a Manifest V3 browser extension, a server-rendered React web app, and Python/Django services. Architected the flagship AI insert/replace engine that writes LLM output into third-party editors (Google Docs, Gmail, Word, ChatGPT) with formatting preserved. Owned React/TypeScript surfaces (AI chat side panel, grammar card, toolbar, onboarding), A/B experimentation with Amplitude, and hot-path performance work backed by a per-merge-request Playwright + GitLab CI benchmark pipeline.

Built responsive financial audit dashboards in React and TypeScript over a Python/Django service layer, replacing a manual report-review process and saving an estimated $5,000/month in auditor time. Modelled and queried 100k+ daily transactions in KDB+ and SQL, cutting retrieval time on complex analytical queries by 15%. Reshaped the audit review workflow, cutting audit completion time by 40%. Shipped monthly releases through CI/CD (TeamCity, OpenShift) with 90% code coverage under SonarQube.