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User

Blockchain Developer

BMT Score
86
86%
  • Remote

Available for

About Khemraj

As a Computer Engineering alumnus, have been engaged with the web3 domain for 4.5+ years now. 
Through involvement in 2 blockchain product startups, contributed to 7+ products, of which backend and blockchain development are my specialties. 
An emphatic achievement has been obtaining one patent related to Decentralized Storage as well as presenting an EIP (Ethereum Improvement Proposal) concerning metaverse assets.

Work Experience

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Blockchain Developer

  • January 2018 - February 2023 - 5 Year
  • India

Projects

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Indorse

  • March 2021 - February 2023 - 24 Months
Technologies
Role & Responsibility
    Indorse is a platform where techies can register as validators and contribute to the validation of various technical codes, tasks, assignments and projects.

    It is built on the Ethereum Blockchain and governed by the crypto token IND. It is used as a core for 2 other sub-products developed for specific customers.

    Mainly involved in upgrading the platform with new features. Have worked on automating a few processes of the Indorse platform with technologies like NodeJS, GraphQL, MongoDB, React, Heroku, etc. Also communicate with the clients when it comes to requirements and work on developing those requirements.
     
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Blockbots NFT

  • March 2021 - February 2022 - 12 Months
Technologies
Role & Responsibility
    BlockBots is a NFT collection of 2,927 3D Voxel avatars on the Ethereum blockchain.
    Owners can use their avatars in a captivating Play-to-Earn game. Fight epic strategy battles against other BlockBots to win in-game items and IND tokens! It was launched in October 2021.
    Worked on Blockbots NFTs from scratch. My contribution includes writing the ERC721 Smart contract in solidity and testing it using tools like Remix, Hardhat, and Metamask. Built NodeJS server and REST APIs for the metadata of NFTs. I was part of conducting a Raffle for the public launch of the collection. Worked on technologies like Javascript, MongoDB, Heroku, etc.
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Blockbots P2E NFT Game

  • March 2021 - February 2023 - 24 Months
Technologies
Role & Responsibility

    After launching the NFT collection, we built a play-to-earn game.
    The user who owns Blockbots NFT can play the game in multiple modes. Players can play to win NFTs or crypto tokens.
    Role in developing the game was to write an EVM smart contract for an in-game wallet using Solidity. Also worked on building NodeJS REST APIs using Javascript and MongoDB. Built multiple algorithms like matching the players in real-time using WebSockets, simulating the fights on the backend, and choosing the winner.
     
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Metalinq Protocol

  • March 2021 - February 2023 - 24 Months
Technologies
Role & Responsibility
    Metalinq is the first Layer 3 protocol to allow projects to launch new wearable collections across multiple metaverses simultaneously.
    The protocol allows users to transfer existing assets across platforms by focusing on interoperability and remaining blockchain agnostic.
    4+ years of experience in blockchain and backend development.
    Software Engineer - Lead Blockchain & Backend Developer
    >> Responsibilities
    Senior developer for blockchain and backend development.
    Participated in the development and maintenance of multiple blockchain based projects.
    Remotely led the team of 4 developers to build applications ranging from the Decentralized SaaS platform, NFT Game, NFT Marketplace, Tokens Bridge and relayer, Multi Metaverse Wearables, Decentralized ads network.
    Launched a NFT collection of ERC721 and ERC1155 tokens. •Collaborated with frontend developers for smart contract and backend integrations.
    Major contributions included:
    Leading smart contract development, testing and mainnet deployment.
    Building backend servers, setting up database, blockchain interactions and writing APIs.
    Deployment of backend servers on Heroku.
    Communication with contract auditors and client consultation.
    Contributed in writing Ethereum Improvement Protocol.
    At Metalinq, we are proposing a new type of NFT token: a Multiverse NFT. They represent digital assets across multiple platforms, Metaverses & Games. A Multiverse NFT is a wrapper that “bundles” multiple NFTs, creating a single representation for a digital asset. I have written an EVM smart contract using solidity for creating multiverse tokens. Lead the development of a backend system in NodeJSn TypeScript, and MongoDB which allows users to launch multiverse collections, and buy and sell the NFTs. Key highlight of this project is being a co-author of the Ethereum Improvement Protocol - EIP 5606. https://eips.ethereum.org/EIPS/eip-5606
     
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Konnecteum

  • March 2019 - February 2021 - 24 Months
Technologies
Role & Responsibility
    Konnecteum is a freelancing platform powered by Blockchain. Using Ethereum Smart Contracts, Konnecteum attempts to solve the payment problem.
    It protects data privacy through the use of a decentralized storage system based on the Hyperledger Sawtooth blockchain.
    To ensure transparency, it keeps track of users' past activity on the blockchain.
    Main responsibilities at Konnecteum included writing Ethereum smart contracts in Solidity and building a NodeJS server using Javascript to interact with the contract. Biggest contribution was the development of a decentralized storage system based on Hyperledge Sawtooth and Python Flask. I also contributed to developing backend APIs in Java Spring Boot, designing the MySQL database for the platform and integrations with Angular frontend.
     
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Konsize

  • March 2019 - February 2021 - 24 Months
Technologies
Role & Responsibility
    Konsize is a decentralized storage system for private file sharing. It secures users' data by keeping data chunks in distributed storage locations such as AWS S3, Google Cloud Storage, and local machines. • The metadata used to reconstruct the actual files from the chunks is encrypted with the user's private key and stored on the blockchain.
    First employee of the startup.
    Contributed in building blockchain based freelancing platform along with decentralized storage system and audio-video call application.
    >> Key Responsibilities:
    Ideation, Market research and feasibility study
    Competitor's analysis and making case studies
    Solution designing and Web Development
    Creating and pitching presentations to investors and clients.
    Operated on Blockchain technologies - Hyperledger Sawtooth, Ethereum, UPort.
    Backend contribution included Java Spring Boot, Python Flask, Node Express and MySQL.
    Built 3+ projects using programming languages including Java, Python, JavaScript, Typescript with the bonus of WebRTC, WebSockets implementation.
    Was responsible for developing the transaction processors in Hyperledger Sawtooth using Python. I also developed APIs for accessing the data in the blockchain using Python Flask Server. The highlight of this project is the granted patent for the method of storing and retrieving file data.
     
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Koncalls

  • March 2019 - February 2021 - 24 Months
Role & Responsibility
    Koncalls was constructed during the Covid period. It is a web application for audio-video conferencing that uses Blockchain technology.
    It was built as an MVP for one of the government agencies.
    It facilitates audio and video calls, screen sharing, encrypted chat, and file sharing via decentralized storage.
    Worked on Janus, WebRTC, Javascript, NodeJS, MySQL, and other technologies. My main contribution was the integration of Decentralized Storage into a web application and the development of backend APIs. I also demonstrated the MVP to government clients.
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Industry Expertise

Education

Education

in BE

Maharashtra University
  • June 2014 - June 2018

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