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Mayank Bhola, Full-stack Developer in New Delhi, Delhi, India
Mayank Bhola

Full-stack Developer in New Delhi, Delhi, India

Member since July 27, 2018
Mayank has been professionally working as a software engineer in startups since 2014. During these years, he has worked on a wide variety of projects having different technology stacks in both front-end and back-end. He has experience in building robust software pipelines for automating processes and increasing efficiency. He's built a media processing pipeline for PressPlayTV and then an epub ingestion pipeline for Juggernaut books.
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Portfolio

Experience

Location

New Delhi, Delhi, India

Availability

Part-time

Preferred Environment

Node.js, MacOS, Python, JavaScript, Go, Git, Linux

The most amazing...

...project I've made is the Juggernaut writing platform powered by a sophisticated tree-based content storage model and has approximately 20,000 users/month.

Employment

  • Senior Back-end Developer

    2020 - 2020
    Human Factors LLC
    • Created end-to-end NestJS API back end for a stealth mode healthcare product (COVID related).
    • Set up the unit and E2E testing using the Jest and NestJS testing module.
    • Integrated TypeOrm and set up the migration of data models.
    • Set up a Github Code review and CI/CD pipeline using Travis CI.
    Technologies: Docker, AWS Fargate, Jest, Swagger, TypeORM, NestJS, Node.js

  • Senior Front-end Developer

    2020 - 2020
    Sub13 Management
    • Created a web dashboard for a private email client from scratch in React.js.
    • Created a React development framework using CRA, Redux Plugins, Storybook, and Jest.
    • Created CI/CD and testing pipeline for a web app using GitLab CI/CD, AWS S3 CloudFront.
    Technologies: GitLab CI/CD, JavaScript, Redux, React

  • Web Platform Developer

    2019 - 2020
    Ouster Inc.
    • Created CRM for flagship website and complete web platform from scratch using React JAMstack and Contentful. Website builds are fully automated using GitLab CI/CD and deploys happen on Netlify.
    • Developed a library of components using custom DSL on headless CMS (Contentful).
    • Created content migration flow using for Headless CMS (Contentful) GitLab CI/CD.
    Technologies: Netlify, GitLab CI/CD, Contentful, Node.js, GatsbyJS, GraphQL, Redux, React

  • Chrome Extension Developer

    2019 - 2019
    Esquire Marketing, LLC
    • Reversed engineered already developed Chrome Extension using compiled code and half updated source code.
    • Fixed back-end server (Node.js) by adding tweaking data model and flow.
    • Added new features using Gmail draft creation API to send a draft to multiple recipients using Google Sheets as a source.
    • Added new UI modules to Chrome Extension view to select Google Sheets from a dropdown.
    Technologies: Node.js, Chrome Extensions, TypeScript, JavaScript

  • Contract Developer

    2018 - 2019
    ShiftSmart
    • Created graphing module for flagship web app.
    • Implemented dashboard components for back-office usage.
    • Refactored code to use best practices in JS.
    • Created back-end modules for enhanced data collection and analytics.
    Technologies: MongoDB, FeathersJS, Node.js, MobX, React

  • Head of Technology

    2018 - 2018
    Juggernaut Books
    • Created a continuous deployment pipeline.
    • Implemented a new React website using state of the art JavaScript stack.
    • Moved existing services to FAAS model to scale up data processing and increase concurrency.
    • Created a pipeline to ingest ONIX files from multiple vendors using FAAS technologies.
    • Created an in-house DRM for book protection.
    Technologies: Flask, Docker, AWS API Gateway, AWS Lambda, Node.js, Redux, React, Python

  • Contract Developer

    2016 - 2018
    PowerMap
    • Added a Firebase real-time database for real-time data sync.
    • Created a FAAS-based deployment pipeline using Firebase Cloud functions.
    • Optimized data storage for the fast first load.
    • Optimized real-time rendering performance by preloading auth data and wrapping it in Redux data.
    • Added support for Redux CLI by creating templates for dumb, smart, and connected components to streamline the architecture and for increasing developer productivity.
    Technologies: Amazon Web Services (AWS), Firebase, Python, AWS, Node.js, Redux, React

  • Senior Software Engineer

    2016 - 2018
    Juggernaut Books
    • Implemented central configuration service allows to segregate environment based configs out of source code.
    • Developed a self-deploying layer in existing services to make them self-contained.
    • Built community writing platform for the company.
    • Designed a tree-based content storage format for user-contributed stories.
    • Created pipeline to segregate static assets from text content for optimized delivery.
    Technologies: Node.js, Git, Socket.IO, Elasticsearch, PostgreSQL, Flask, Django, Python

  • Senior Software Engineer

    2015 - 2016
    PressPlayTV
    • Architected and implemented an analytics system for the online media model.
    • Implemented remote update infrastructure for the offline server fleet.
    • Created configuration and metric collection service for offline servers.
    • Designed a media processing pipeline for the content library.
    • Optimized time-to-first-frame metric for Chrome video start-up time.
    Technologies: Redis, Celery, GoLand, InfluxDB, Elasticsearch, PostgreSQL, Python, ECMAScript (ES6), Node.js

  • Software Engineer

    2015 - 2015
    PressPlayTV
    • Designed and built PressPlays's Flagship hotspot server from scratch.
    • Implemented user account device tethering in the web version.
    • Created a crowd-sourced log collection system for the offline model.
    • Implemented dynamically styled video player in vanilla JavaScript.
    • Created video analytics SDK in Vanilla JavaScript.
    Technologies: Amazon Web Services (AWS), AWS, Raspberry Pi, Shell, Python, Node.js

  • Software Engineer

    2014 - 2014
    Zomato
    • Developed and maintained web application and assets.
    • Built in-house JavaScript annotation library for first-time users.
    • Built a Google Map-based tool for managing positions of entities on a map.
    • Built web-based premium features for restaurant owners.
    • Designed internal dashboards for report generation.
    • Created a crowd-sourced distance calculator for web browsers.
    Technologies: JavaScript, CSS, Redis, MySQL, Linux, Python, PHP

  • Software Engineering Intern

    2013 - 2014
    GrabHalo
    • Maintained and upgraded the Flagship iOS app of the firm.
    • Implemented Clustering in map object and pagination of message feeds.
    • Fixed bugs and ported to iOS 7.
    • Added infinite scrolling feature.
    • Refactored dependency management architecture in the project.
    Technologies: AFNetworking, JSON, Xcode, iOS

  • WebTech Intern

    2013 - 2013
    GAIL(INDIA) Limited
    • Developed PHP-MySQL library to interact with the MySQL database and perform CRUD operations.
    • Built dBaseView, a contact management app in PHP using Metro UI and PHP-MySqli library for database support (https://github.com/psych0der/DbaseView).
    • Introduced Git and tracked older projects in Git.
    • Created authentication APIs.
    • Created OAuth 2 connector for Google and Facebook.
    Technologies: Linux, Bootstrap, MySQL, CSS, HTML, JavaScript, PHP

Experience

  • Smithy

    Python-based remote software upgrade infrastructure for occasionally connected devices. It leverages the power of built-in shell tools to provide optimized performance. It performs in place firmware and software upgrade on embedded devices (Raspberry Pi) and adds pre and post checks for reliable upgrades.

  • SSH-based Local Website Testing Tool

    SSH-based website testing tool helps developers and testers to test their local website on the cloud using this executable on their local machines. This executable is written in Golang and uses SSH to expose traffic from the local system to the cloud. This is part of my day job at LambdaTest. It is available on LambdaTest's main website

  • Beam

    Node.js- based video and static files server leveraging LRU cache principle to speed up video loading time. It is optimized to run on a low powered embedded device such as Raspberry Pi with quick time-to-first-frame

  • Text-process
    https://github.com/psych0der/textprocess

    A Python module for text pre-processing which can be used in various data mining and AI algorithms. It provides tokenization, normalization, lemmatization, stemming, and stopword removal.

  • PngQuantJS
    https://github.com/psych0der/pngquantjs

    Pngqunatjs is a port of a famous PNG compression library (Pngquant) in JavaScript using Emscripten.

  • Stylus

    Juggernaut community writing platform implemented in vanilla JavaScript and sockets. It creates a tree-based data model of the content optimized for streaming it over the internet. It has auto-versioning support which makes it suitable for occasionally connected devices.

  • Steelix

    Multi-vendor epub ingestion platform using ONIX file. This platform is purely built using FAAS and is highly scalable and concurrent and has been tested to ingest ~ 100k books in a couple of minutes.

  • Photon
    https://github.com/psych0der/resin-photon

    Experimental home automation front end built with Resin.io API. It showcases robust code architecture and best coding practices for modern-day React/Redux projects.

  • Time Doctor Dashboard Skeleton
    https://github.com/psych0der/time-doctor-analytics-dashboard

    This project is aimed at showcasing use for React-DND (drag and drop). The project showcases great architecture design and best practices for implementing drag and drop.

  • HourGlass
    https://github.com/psych0der/HourGlass

    A boilerplate for a MERN app (MongoDB, ExpressJS, React, Node ) using best practices, validation plugins, Unit Testing, E2E Testing. I have implemented a full E2E product with authentication, authorization, models with validation, admin views. It's a full-fledged full-stack app with back end and front end.

Skills

  • Languages

    Go, CSS, ECMAScript (ES6), JavaScript, TypeScript, Python 3, Python 2, Bash, Python, PHP, HTML, GraphQL, PHP 5

  • Frameworks

    Express.js, JSON Web Tokens (JWT), Next.js, gRPC, Redux, Django, Flask, AFNetworking, Bootstrap, FeathersJS, Swagger, Jest, Bootstrap 2, JavaScriptCore

  • Libraries/APIs

    React, Node.js, React Redux, Protobuf, Socket.IO, MobX, GatsbyJS, LocalStorage, Web Worker, HTML5 Web Workers, Requests, REST APIs, Slack API

  • Paradigms

    REST, Back-end Architecture, Agile, Design Patterns, Scrum

  • Platforms

    AWS Lambda, Drone CI, Docker, Firebase, Linux, Raspberry Pi, Debian, MacOS, iOS, Contentful, Netlify, Amazon Web Services (AWS), AWS EC2

  • Other

    SSH, Front-end, Lambda Functions, Amazon API Gateway, APIs, API Gateways, NestJS, HTML5 Video, HTTP REST, Axios, AWS, AWS API Gateway, TypeORM, Chrome Extensions, Amazon Route 53, Relational Database Services (RDS), Cloud, Flux Architecture, Gunicorn, Cryptocurrency APIs, Platform Design, Service Workers, WebSockets

  • Tools

    Docker Compose, GitLab CI/CD, Shell, AWS CLI, Nginx, Git, Xcode, AWS Fargate, Supervisor, Celery, PM2, uWSGI, MongoDB Shell, Ansible, Mocha, Mongoose, Amazon CloudFront CDN, Slack, Amazon SQS, AWS Push Notification Service (AWS SNS)

  • Storage

    LAMP Server, Redis, MongoDB, Elasticsearch, JSON, MySQL, PostgreSQL, Cassandra, InfluxDB, AWS S3

Education

  • Bachelor's degree in Computer Engineering
    2010 - 2014
    Jaypee Institute of Information technology - Noida, India

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