# Hariom Sharma
**Staff Frontend & Full-Stack Engineer · AI Agent Platforms · Claude Certified Architect**

Dubai, UAE | contact@harryy.me | +971 50 737 2969 | harryy.me | github.com/harryy2510 | [linkedin.com/in/hariom-sharma](https://www.linkedin.com/in/hariom-sharma/)

## Summary

Staff frontend and full-stack engineer with 11 years taking products from idea to scale, now building AI agent platforms as technical co-founder of Five Star Solutions. Grew GrowthDay from 10K to 500K+ users while leading 15+ engineers, and architected Appointy’s 232-package platform for 1M+ users, used by Google and Telefónica.

## Experience

### [Five Star Solutions](https://5starsolutions.co): Technical Co-Founder
*Jul 2026 to Present*

- Own platform and architecture for AI operators that businesses run inside Slack, Microsoft Teams, iMessage, and Telegram, with people approving every consequential action.
- Built configurable agents, reusable skills, schedules, delegation, knowledge bases, memory, and evals on Cloudflare Workers and Durable Objects.
- Connected agents to 1,000+ tools through Composio and MCP plus a central data warehouse, with audit logs, tenant isolation, and PII boundaries from day one.

### [GrowthDay](https://www.growthday.com): Lead Frontend Engineer → Technical Lead
*Jan 2021 to Present. Full-time to Apr 2026, contract since May 2026*

- Built most of the platform from scratch across Next.js, React, TypeScript, Node.js/GraphQL, AWS, and React Native, growing it from 10K to 500K+ users.
- Led 15+ engineers across frontend, mobile, backend, QA, and DevOps while staying hands-on in architecture, code review, and production debugging.
- Raised checkout conversion 9% and cut payment and SCA failures 25% by rebuilding Stripe billing with Apple Pay, Google Pay, Link, and BNPL.
- Scaled AWS 20x at 25% lower cost, shipped live video for 7,000 to 8,000 concurrent attendees, and moved 300K+ users to DynamoDB with no downtime.
- Introduced AI-assisted engineering across engineering and growth teams: Claude Code and Codex workflows, reusable skills, and MCP connectors.

### [Appointy](https://www.appointy.com): Intern → Engineering Lead
*2015 to 2021*

- Architected Saastack, a 232-package React, Relay, and GraphQL SaaS platform with plugin hooks, i18n/RTL, and white-label configuration, serving 1M+ users.
- Cut page loads from 15 seconds to under 1 second and led a team of 8 engineers.
- Built CLI scaffolding that cut new-product delivery from about a year to about a month.
- **Google** (via Appointy, 2019 to 2020): Scheduling products for fitness classes, restaurant, spa, and massage booking.
- **Telefónica** (via Appointy, 2018 to 2019): Conference room scheduling with recurring meetings, calendars, and staffing.

## Contract Engineering

- **[Speak To Freedom](https://speaktofreedomcrm.com)**, Software Engineer (Mar 2026 to Present): Outreach platform: Typesense lead search over a millions-scale contact database, Instantly campaigns, Zapmail provisioning, GoHighLevel sync, and a remote MCP server.
- **[EventRoostr](https://eventroostr.com)**, Senior Developer (Dec 2025 to Jan 2026): Stripe checkout with saved cards, ACH, installments, Apple Pay, Google Pay, and automatic tax across Next.js and Laravel.
- **[Snappy Kraken](https://www.snappykraken.com)**, Senior Frontend Engineer (Aug 2021 to Present): Reusable HubSpot CMS templates and campaign pages, stronger SEO and Lighthouse scores, and frontend team hiring and onboarding.
- **[Aicadium](https://aicadium.ai)**, Frontend Developer (May to Nov 2022): NOVA web app for Temasek: React/MUI dashboards for KPI monitoring, peer benchmarking, and consent workflows.

## Products

- **[Dexby.ai](https://dexby.ai)**, Founder · beta: Tools and sign-in for AI agents: 1,000+ connectors, about 7,500 tools, per-user sessions, managed OAuth, MCP, and a TypeScript SDK.
- **[Jetseen](https://jetseen.com)**, Co-owner: Local-first iOS app that tracks visa and tax-residency days against Schengen, UAE, UK, and US rules. Live on the App Store in 49 languages.

## Open Source

- **[dotagent](https://dotagent.dev)**, Agent tooling: Skills and shared rules for Claude Code, Codex, and Gemini CLI.
- **[geocoded](https://geocoded.me)**, API: Free geography API on Cloudflare Workers and D1: 252 countries, 235K+ cities.
- **[web-smith](https://github.com/harryy2510/web-smith)**, AI tooling: Rebuilds sites as Astro and Tailwind projects with Lighthouse and visual-diff checks.
- **[react-file-browser](https://harryy2510.github.io/react-file-browser/)**, npm package: React file manager for S3, R2, and Supabase Storage, on npm.
- **[Lena](https://github.com/Utilities-Studio/lena)**, npm packages: Encrypted, local-first app infrastructure in 14 npm packages.

## Skills

**AI & agents:** Claude Code, Codex, MCP servers, agent workflows, Mastra, Composio, Cloudflare Agents, OpenAI
**Frontend & mobile:** React, TypeScript, Next.js, TanStack Start, React Native, Expo, Tailwind CSS, accessibility, performance
**Backend & cloud:** Node.js, GraphQL, PostgreSQL, DynamoDB, Supabase, AWS, Cloudflare Workers, Terraform, Docker
**Product & quality:** Stripe, Mixpanel, Statsig, Playwright, Jest, Cypress, team leadership, hiring, mentoring
**Languages:** Hindi (Native), English

## Certification

- **[Claude Certified Architect - Foundations](https://www.credly.com/badges/09b720f4-8dc0-4e83-9ac8-b35b781e788f)**, Anthropic. Valid June 6, 2026 to June 6, 2027.

## Education

**Bachelor of Technology**, Maulana Azad National Institute of Technology, India (2013 to 2017)