Hariom is available for hire

Hariom Sharma

Verified Expert in Engineering

Front-end Developer

Location

Dubai, United Arab Emirates

Toptal Member Since

January 21, 2021

Hariom is a highly driven technical leader with eight years of experience developing SaaS products for startups and enterprises. He is passionate about building quality products from the ground up, crafting simple solutions to complex problems, and delivering robust, scalable software. Hariom's specialties include React, Angular, Node.js, React Native, GraphQL, TypeScript, Express.js, NestJS, and other JavaScript technologies.

Full-stack Web Development SaaS Front-end User Interface (UI)User Experience (UX)ESLint MacOS Git JavaScript TypeScript Redux REST APIs Ionic Webpack Relay Angular Material Facebook Pixel

Portfolio

GrowthDay

JavaScript, TypeScript, React, React Native, Antd, Miro, Full-stack...

GrowthDay

JavaScript, TypeScript, React, React Native, Antd, Full-stack, Web Development...

Snappy Kraken

JavaScript, Web Development

Experience

Full-stack - 8 years TypeScript - 6 years Angular - 6 years Front-end Architecture - 6 years JavaScript - 6 years React Native - 4 years React - 4 years Node.js - 3 years

Availability

Full-time

Preferred Environment

ECMAScript (ES6), React Native, Node.js, React, TypeScript, Docker, Git, Slack, WebStorm, MacOS

The most amazing...

...things I've built are SaaS products for time management and scheduling for enterprises such as Google and Telefonica.

Work Experience

Technical Lead

2021 - PRESENT

GrowthDay

Engineered and deployed AWS infrastructure using CloudFormation, Terraform, and services like ECS, S3, Lambda, RDS.
Revamped GitHub Actions CI/CD pipeline, enhancing mobile app build and update processes across platforms.
Led mobile and web testing using Jest, React Testing Library, Playwright, and Cypress for comprehensive coverage.
Developed a cross-platform mobile app with React Native, focusing on user experience and compatibility.
Integrated Stripe for Android and Apple In-App Purchases for iOS, optimizing transaction processes.
Managed a 15+ member team, fostering creativity and collaboration while implementing best practices.
Worked with stakeholders and teams across Web, Mobile, Backend, and Product to align company strategy.
Led the integration of live streaming in mobile app and web using WebRTC, HLS, and 100ms solution.
Added advanced video playback features with PIP support and mini player controls for web and mobile.

Technologies: JavaScript, TypeScript, React, React Native, Antd, Miro, Full-stack, Web Development, User Experience (UX), Amazon Web Services (AWS), Full-stack Development, PostgreSQL

Lead Front-end Engineer

2021 - 2021

GrowthDay

Led the revamp of the application's front end by rebuilding the app's core pillars from scratch, improving development processes, optimizing the developer experience, and driving enhancements to enable reusability and increase performance.
Developed new features for the platform, including a feedback system that enables users to upload and annotate screenshotted platform issues, growth groups to drive collaborative learning, and gift subscriptions to drive user growth.
Collaborated with executive stakeholders and the web, mobile, back-end, and product teams to drive company strategy, define technical product requirements, determine product features, and streamline the development roadmap.

Technologies: JavaScript, TypeScript, React, React Native, Antd, Full-stack, Web Development, User Experience (UX)

Senior Front-end Engineer

2021 - 2021

Snappy Kraken

Streamlined and improved front-end development processes for creating complex interactive campaigns.
Led the development of a new front-end team by creating interview tests, directly interviewing and onboarding two new developers, creating a central development knowledge hub, and championing best practices to reduce the ramp-up time.
Tracked and fixed bugs using Asana as a reporting tool.

Technologies: JavaScript, Web Development

Lead Software Engineer

2020 - 2021

Appointy

Led development of Saastack, a SaaS platform with modular, Plug'n'Play, multi-repo architecture, and basic prebuilt apps complete with features for RTL, custom apps integrations, multilingualism, and accessibility.
Developed new features for Saastack to support client billing, management, people management, and reporting using React, Material-UI, Relay, and Graphql.
Enhanced performance, dynamicity, and customization by driving new enhancements, including caching to reduce load times from 15 seconds to less than a second.
Created a Command-line-Interface for the scaffolding app by leveraging Relay as a Graphql client to eliminate codebase set up times and drive development efficiency and productivity.
Decreased development time and maximized development flexibility by introducing a hook-based architecture to enable apps and features to be hooked anywhere within the app at runtime.
Designed i18n library and prebuilt components to convert the app into multiple languages, currencies, and formats supported in countries worldwide.

Technologies: Responsive Coding, User Interface (UI), Front-end, HTML5, YARN, WebSockets, SCSS, Agile, React Router, JSON Web Tokens (JWT), Gulp, Next.js, SaaS, Git, WebStorm, Sass, CSS, HTML, JavaScript, Front-end Development, Front-end Architecture, ESLint, Formik, Material UI, ECMAScript (ES6), Storybook, Styled-components, Node.js, Babel, Webpack, Relay, GraphQL, TypeScript, React, Progressive Web Applications (PWA), Web Development, User Experience (UX), Full-stack Development

Engineering Design Lead

2018 - 2020

Appointy

Developed Appointy's small-to-large business multi-layered scheduling tool with multiple views, time zone support, drag-drop events, and event positioning for 1MM users with Angular, Angular Material, and NGRX Store.
Spearheaded front-end development for billing, staffing, business hours tools, calendars, and shift management and designed the guidelines based on best practices to maximize efficiency with a team of eight developers.
Evaluated libraries and tools for integration, including FullCalendar to reduce development time from a year to one month and Angular Framework to help further optimize development and code quality.

Technologies: Responsive Coding, User Interface (UI), Front-end, HTML5, YARN, WebSockets, SCSS, NgRx/store, RxJS, Agile, React Router, JSON Web Tokens (JWT), jQuery, Angular Material, Bootstrap, Gulp, Next.js, SaaS, REST APIs, Git, WebStorm, Sass, CSS, HTML, JavaScript, Front-end Architecture, ESLint, Formik, Material UI, ECMAScript (ES6), Front-end Development, Storybook, Styled-components, Node.js, Babel, Webpack, Relay, GraphQL, TypeScript, React, Web Development, User Experience (UX)

Mobile Application Developer

2016 - 2020

Accevate Technologies (Freelance)

Developed Android and iOS education management apps that enable students to attend online classes and view messages and documentation, teachers to manage student work, and management to oversee operations using Ionic, Cordova, and Angular.
Integrated Cordova plugins, including SMS reader and file downloader, to secure private data and improve the user experience.
Implemented Firebase cloud messaging to send relevant notifications to students and teachers for assignments and tasks.

Technologies: User Interface (UI), Front-end, HTML5, YARN, WebSockets, Front-end Architecture, Expo, Agile, Formik, JSON Web Tokens (JWT), Gulp, REST APIs, Git, Slack, WebStorm, Sass, HTML, CSS, Redux, JavaScript, ECMAScript (ES6), React, Firebase Cloud Messaging (FCM), Cordova, React Native, SCSS, TypeScript, Ionic, Angular, Progressive Web Applications (PWA), Full-stack, Web Development

Associate Product Developer

2017 - 2018

Appointy

Advised and oversaw the front-end development for clients by creating user flows, product roadmaps, and features with a team of four front-end developers.
Created a new product that coordinated fitness classes, restaurant, and spa scheduling for Google, focusing on accessibility.
Built a room conference scheduling system for Telefonica, one of Spain’s largest telecom companies, with features for managing rooms, schedule calendars, staffing, and CMS/TMS integrations using Angular, Angular Material, and NGRX Store.

Technologies: Responsive Coding, User Interface (UI), Front-end, HTML5, YARN, WebSockets, Front-end Architecture, SCSS, Agile, JSON Web Tokens (JWT), jQuery, Bootstrap, Gulp, Babel, SaaS, REST APIs, Git, WebStorm, Sass, CSS, HTML, Front-end Development, NgRx/store, Redux, RxJS, ECMAScript (ES6), JavaScript, Angular Material, TypeScript, Webpack, Angular, Web Development

Intern

2015 - 2017

Appointy

Wrote scripts for task automation for Appointy 9.0 with SASS, Tree Shaking, and AOT that saved at least six hours of development time each week, reduced error, and generated cost savings.
Designed reusable UI components and libraries for other developers to use.
Created a fully responsive UI with reusable components suitable for all mobile devices for real-time widgets using WebSockets, Angular, Angular Material, and NGRX Store.

Technologies: Responsive Coding, User Interface (UI), Front-end, HTML5, YARN, WebSockets, Front-end Architecture, SCSS, RxJS, Agile, JSON Web Tokens (JWT), jQuery, Bootstrap, Gulp, Babel, SaaS, REST APIs, Git, WebStorm, Front-end Development, CSS, HTML, ECMAScript (ES6), Sass, NgRx/store, Angular Material, Webpack, JavaScript, TypeScript, Angular, Web Development

Experience

Appointy 9

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.

Saastack

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.

Appointy X

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.

Accevate Management App

https://ibb.co/album/0m8CZn

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.

Haseed Invest

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.

Toptal React Accelerator

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.

Education

2013 - 2017

Bachelor's Degree in Civil Engineering

Maulana Azad National Institute of Technology - Bhopal, India

Certifications

MAY 2022 - PRESENT

Toptal React Accelerator Graduate

Toptal, LLC

Skills

Languages

JavaScript, TypeScript, ECMAScript (ES6), GraphQL, HTML, CSS, Sass, HTML5, PHP, SCSS

Frameworks

React Native, Redux, Angular, Relay, Ionic, Bootstrap, Material UI, Angular Material, YARN, Express.js, NestJS, Next.js, JSON Web Tokens (JWT), OAuth 2, Laravel

Libraries/APIs

React, REST APIs, jQuery, React Router, Formik, Node.js, Passport.js, Antd, RxJS, NgRx/store

Tools

WebStorm, Slack, Git, Webpack, Babel, Gulp, Yarn Workspaces, Google Analytics, Facebook Pixel, ChatGPT, NGINX, Expo, Firebase Cloud Messaging (FCM), Miro

Paradigms

Responsive Coding, Agile

Platforms

MacOS, Mixpanel, Amazon Web Services (AWS), Docker, Netlify, Heroku

Other

SaaS, Styled-components, ESLint, Storybook, Front-end Development, Front-end Architecture, Front-end, User Interface (UI), Progressive Web Applications (PWA), Full-stack, Web Development, User Experience (UX), Architecture, Leadership, RudderStack, Google Tag Manager, CAPTCHA, TypeORM, WebSockets, Monorepos, Analytics, Full-stack Development, Apollo, Cordova, Back-end Development, APIs

Storage

PostgreSQL, MySQL, MongoDB

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