Avi Aryan, Developer in New Delhi, Delhi, India

Avi Aryan

Full-stack Developer

New Delhi, Delhi, India
Toptal Member Since
March 28, 2018

Avi is a full-stack web engineer with five years of professional experience. He has worked with most of the popular stacks used on the web today including JavaScript, Python, and Go. He is also a multiple-time Google Summer of Code participant, where he mentors budding developers to contribute to open-source projects.

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Toptal Client
Solidity, Python, jQuery, Truffle
Signs365.com (via Toptal)
React, JavaScript, PHP, Three.js, Go, jQuery, TypeScript, Cypress, Redux
Webpack, JavaScript, Python, React


JavaScript - 5 yearsNode.js - 5 yearsFull-stack - 5 yearsReact - 4 yearsRedux - 4 yearsProgressive Web Applications (PWA) - 3 yearsNext.js - 2 yearsGatsby - 2 years


New Delhi, Delhi, India



Preferred Environment

Git, Visual Studio Code (VS Code), MacOS

The most amazing...

...achievement of mine is ranking 46th globally in a very competitive programming contest that tested my algorithmic skills.

Work Experience

2021 - 2021

Solidity and Full-stack Developer

Toptal Client
  • Implemented staking and payment features on an Ethereum DApp, single-handedly handling everything from UI/UX design and developing smart contracts in Solidity to back-end and front-end smart contract interactions.
  • Picked up a legacy codebase without any direct knowledge transfer as the client had no developers in its team.
  • Collaborated with stakeholders to create a product direction expected to increase the token price.
Technologies: Solidity, Python, jQuery, Truffle
2019 - 2021

Senior Web Developer

Signs365.com (via Toptal)
  • Created a magnification UI in React to allow service persons to view customers' orders precisely. Before this, these orders had to be inspected using a manual process. The new magnification system saves many hours for company staff every week.
  • Converted a jQuery eCommerce website to React and Three.js. Reduced project SLOC (source lines of code) by 70%, from 65,000 to 20,000.
  • Rolled out Canadian currency support in a US-native React B2B app helping the business to serve customers better in a second country.
  • Maintained Legacy full-stack projects in jQuery and PHP. Added new features while reducing technical debt.
  • Launched numerous new products to production, increasing business revenue and customer satisfaction.
  • Led multiple projects from ideation to development to deployment.
Technologies: React, JavaScript, PHP, Three.js, Go, jQuery, TypeScript, Cypress, Redux
2017 - 2019

Student Mentor

  • Assisted more than 800 students with Udacity’s front-end development, full-stack development, mobile web specialist, and React nanodegree courses.
  • Managed 100+ students on a regular basis with an average rating of 4.7/5.
  • Did code review of 600+ projects providing students feedback on common errors and better coding practices.
Technologies: Webpack, JavaScript, Python, React
2018 - 2018

Web Developer

NDA (via Toptal)
  • Created a Gatsby website using Contentful data from scratch.
  • Assisted with deciding Contentful data storage structures so that data can be extracted efficiently and rendered smartly.
  • Collaborated with the design team and replicated mockups to HTML and CSS using Bootstrap 4 as the base framework.
Technologies: React, Bootstrap, Contentful, Gatsby
2017 - 2018

Co-founder | Full-stack Engineer

  • Bootstrapped a blockchain-based social media network that incentivizes users for their content.
  • Created a PWA interface using React and Redux to provide the best web experience to the end-users.
  • Developed the social network’s back-end using ERC20-based Steem SMT tokens.
  • Deployed the infrastructure seamlessly on a Kubernetes-based cluster powered by Hasura.io.
  • Created a modular, robust testing module to tightly validate all input data coming through the REST API.
Technologies: Progressive Web Applications (PWA), React, Blockchain, Flask, Python
2016 - 2017

Student Mentor (GSoC)

  • Developed a robust and modular API following a blueprints approach and used Swagger for specification.
  • Implemented async background tasks on the server using Celery and Redis.
  • Streamlined server deployments using Docker and Kubernetes.
  • Mentored four students in the 2017 GSoC to help them maintain and add features to the project.
  • Developed a back end in Python with heavy integrated acceptance testing using Robot.
Technologies: Celery, Kubernetes, Docker, Flask, Python
2016 - 2017

Platform Engineer

  • Added ES 6 support to Appbase.io by hacking a Go back end using Pushpin for pub/sub, Docker for Elasticsearch 6, and OpenResty for the internal proxy.
  • Developed a freemium tool called "abc" to sync data from popular persistence engines such as Mongo, MS SQL, MySQL, Postgres, and even JSON to a common destination, Elasticsearch.
  • Developed Elasticsearch cluster provisioning software to deploy ES to a DigitalOcean server. It also auto-assigns domains to the cluster using CloudFlare API.
  • Created an independent Dockerized service to back up Consul data to AWS S3 periodically.
  • Accelerated Appbase.io dashboard's load time to 1/10th by consolidating multiple APIs.
Technologies: Docker, Elasticsearch, Go



Clipjump is a multiple clipboard management software for Windows. It was built to make working with multiple clipboards super fast and easy. The program records changes in the system clipboard, stores them without limits, and provides innovative ways to work with them. The project, built solely by me, has over 100 thousand downloads to date, with more than 50 public releases.


HapRamp is a social media platform that incentivizes its users for the content they create. It uses the popular Blockchain technology called Steem to do so. I worked on the back end for this project as well as contributed to the React front end.


AnyAudio is an open source music streaming platform. It uses the massive dataset of YouTube to allow you to listen to any song you want. For downloading data from YouTube, it uses youtube-dl and to serve the data to the end users, it has a beautifully designed React progressive web app.

Your Word

An Ethereum-based DApp that helps you stick to your promises. I used Solidity to write the smart contracts and React on the front end. I also wrote automated unit tests for those smart contracts using Ganache CLI. The application is deployed on Rinkeby testnet for anyone to use.


YourNote is a decentralized, private Evernote clone built on the Blockstack network. The data in YourNote is readable by the user only, so not even the developers can see their data. YourNote is a responsive progressive web app, so it can be installed natively on any device, be it mobile, tablet, or desktop.


BigEval is an npm library that is an alternative to JavaScript's eval() for solving mathematical expressions. It can be extended to use the Big Number libraries available to provide results with maximum precision.


GoRemote is a remote jobs aggregator for the Indian time zone. We parse job listings on Stack Overflow and other sites, detect any time zone requirements in that job, and list only those jobs where Indians can apply.

VSCode Notebook

VSCode Notebook is an attempt to use VS Code as a complete note-taking application. It includes several cool features such as notes encryption, fast search, hierarchical organization, and an auto Git backup facility.
Image of Introduction to Functional Programming: JavaScript Paradigms publication

Introduction to Functional Programming: JavaScript Paradigms

Image of Stale-while-revalidate Data Fetching with React Hooks: A Guide publication

Stale-while-revalidate Data Fetching with React Hooks: A Guide

Image of A Complete Guide to Testing React Hooks publication

A Complete Guide to Testing React Hooks




JavaScript, Python 3, Python, Solidity, Go, TypeScript, PHP, Java


Bootstrap, Express.js, Redux, Flask, Next.js, Truffle, Tailwind CSS, Swagger, React Native, Django, Cypress


React, jQuery, Node.js, Web3.js, REST APIs, Three.js, Vue


Sublime Text, Git, Jekyll, Travis CI, Ganache, MetaMask, NPM, GitHub, Webpack, AutoHotkey, Celery


Unit Testing, Test-driven Development (TDD), Agile Software Development, Concurrent Programming, Design Patterns


MacOS, Dokku, Amazon EC2, Heroku, Ethereum, Visual Studio Code (VS Code), Blockchain, Docker, Contentful, Blockstack, Kubernetes, Windows


PostgreSQL, MySQL, SQLite, MongoDB, Elasticsearch, Hasura


Gatsby, Scripting, Competitive Programming, Styled-components, Full-stack, Front-end, Progressive Web Applications (PWA), PWA, Open Source, Ethers.js, Technical Writing, Mathematics, Smart Contracts, Ethereum Smart Contracts


MAY 2018 - MAY 2021

Mobile Web Specialist