Hariom Sharma

A web-based SaaS product for scheduling classes, appointments, events, meetings, and rooms. I headed the entire front-end development, from selecting the technologies to creating the modular architecture and writing more than 90% of the front-end code. Google and Telefonica used components of this product.

A web-based SaaS platform for bootstrapping SaaS products. It has basic, out-of-the-box features, such as accessibility, internationalization, RTL support, theming, and modularization. The hook-based architecture allows users to build and adjust their apps on the fly.

A web-based SaaS product for scheduling classes, appointments, events, and meetings. This is a newer version based on Saastack, written in a different stack from the ground up. I developed the architecture, built basic apps, and created many components for the team to use.

A React Native-based mobile app that I built from scratch. Features included dark mode, internationalization, multi-user login, and local state management. I also collaborated with the back-end developers to integrate APIs.

A Node.js back-end API for stock market investments. This included integration with interactive third-party brokers for the purchase and management of stocks. I added several new features such as remote log out using Redis, cron management, and OAuth 2 flow for user authentication with Saudi government services.

The Toptal React Accelerator is an exclusive learning program that educates JavaScript developers in React, NextJS, Redux, and GraphQL. This is a two-month program consisting of rigorous learning exercises and hands-on activities, a stringent evaluation process, comprehensive learning assessments, and 30-40 hours of building an invoice management system. Users can track invoices, clients, and company information within this invoicing application.

I served as the technical lead for GrowthDay, a large-scale personal development SaaS platform. I led the architecture, development, and modernization of the web, mobile, and back-end systems across React, Next.js, React Native, Node.js, and GraphQL. I rebuilt core product flows, redesigned major UI and back-end components, and improved performance, scalability, and reliability across the entire stack.

I architected AWS infrastructure using ECS, Lambda, CloudFront, S3, RDS, DynamoDB, and CloudFormation, reducing costs while supporting significant user growth. I implemented analytics, growth, and experimentation pipelines using Mixpanel, RudderStack, Statsig, GA4, and Meta Pixel to power data-driven decisions, A/B tests, and feature rollouts. I also led the integration of Stripe and RevenueCat for subscriptions and payments.

My work included building real-time coaching and events, Growth Groups, a complete feedback system with annotation tools, Strapi-based content workflows, and an enterprise version of the platform. I established CI/CD pipelines with GitHub Actions and introduced automated testing. I collaborated closely with product, design, and executive teams to shape the roadmap and deliver high-impact features end-to-end.