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Sameep Singhania

Sameep Singhania

New Delhi, Delhi, India
Member since July 3, 2017
Sameep has bachelor's degree in computer science and has been programming for the past five years. He would characterize himself as a Blockchain engineer and consultant who loves traveling. That's why the idea of joining Toptal thrills him, freelancing would enable him to work on exciting development projects while seeing the wonders of the world, That is an opportunity that he can't pass up.
Sameep is now available for hire
  • REST API, 4 years
  • Agile Software Development, 2 years
  • Ethereum, 1 year
  • Blockchain, 1 year
  • Web3.js, 1 year
  • Solidity, 1 year
New Delhi, Delhi, India
Preferred Environment
Ubuntu, CentOS, GitHub, Bitbucket, VS Studio
The most amazing...
...thing I've designed and developed was a complex ICO for my client. It included ERC20 token and a complex sales process.
  • Blockchain Engineer and Consultant
    2017 - PRESENT
    • Created ERC20 complaint tokens on Ethereum.
    • Built a Crowdsales contract on Ethereum.
    • Audited Solidity code.
    • Developed a million-dollar clone on Ethereum.
    • Created exchange DApp and contracts.
    • Consulted on Ethereum for many initial coin offerings (ICO) and other clients.
    • Built a back-end to integrate multiple crypto exchanges.
    • Developed an application dashboard for a security company using microservices architecture.
    Technologies: Blockchain, Ethereum, Solidity, Web3.js, Node.js, Java
  • Software Developer
    Drishti-Soft Solutions
    2015 - 2017
    • Developed an omni-platform to help customer service desks to resolve customer's queries from various social media and traditional SMS and calls; all the platforms from one single product.
    • Organized technical training sessions related to web development.
    • Worked as part of the core technical team that developed the core tech stack.
    • Created a framework which allows third-party vendors to create apps on top of our product.
    • Designed and created a library similar to Redux on top of GWT. Was awarded the Boundary Breaker award for the same.
    Technologies: Java, GWT, OSGi, HTML, CSS, PostgreSQL, Hibernate
  • Service IT Developer
    Dell International Services
    2013 - 2014
    • Worked as part of the Skype test execution team.
    • Executed test cases and reported bugs.
    • Tested the Skype application on a varied range of devices and platforms.
    • Created a project for the team which allowed the team to keep all project-related documents in one single location. The documents were password protected and provided access depending upon the access level of the user.
    Technologies: Manual Testing, Test Execution
  • ERC20 Token for KOAN ICO (Development)

    I developed an ERC20 token as per KOAN specifications. I also consulted on how to proceed ahead with the ICO.

  • Smart Contract Audit (Development)

    I audited the smart contract for the Parsec team. The code contained many vulnerabilities. I marked them all and created a report for the same. The client was very happy with the results.

  • Smart Contract Code Auditing for the VTOS Team (Development)

    I audited an ICO smart contract for the VTOS team. The code contained many severe vulnerabilities. I then created a report and suggested possible solutions for the vulnerabilities. The client was very much happy with the results and added me to the team as a consultant.

  • Million Ethereum Platform (Development)

    I developed a million dollar product. It allows users to put advertisements for their ICOs on an Ethereum blockchain. The user can buy the ad space on the canvas and display their ICO information. The ads are actually stored on the blockchain and displayed on the canvas using Web3.js.

  • Entire Crowdsales DApp (End to End) (Development)

    I developed and an entire DApp (decentralized app) for the crowd sales for my client. It includes an ERC20 token contract, a crowdsales contract, and the DApp which allows the user to purchase those tokens during crowdsales.

  • Incidents Dashboard (Development)

    I developed this project for a security company called Cybellum. It's a very user-friendly dashboard that allows users to view all the incidents found based on various parameters. Behind the scenes, it involves some complex APIs, data manipulation, and pagination.

  • Incidents Reports Management System (Development)

    In this project, the main task was to design a system around their current architecture to enable them to view reports about all the reported incidents based on categories. It also enables the user of the system to view and edit various parameters of the incident.

    Technologies: Node.js, Express.js, MongoDB, HTML, CSS, JavaScript

  • Chat Application | Chatty (Other amazing things)

    This is a simple chat application which allows a user to create rooms, join existing rooms, and chat within the room. It does not require any registration and users can join and leave at any time. It also supports file uploading and emoticons.

    Technologies: Node.js, Express.js, Socket.IO, Amazon S3, HTML, CSS, JavaScript

  • Internal Respository (Other amazing things)

    This is a web-based portal that allows team members to share files among themselves. It allows users to upload and download files. It supports folder hierarchy and the folders can be created or deleted. The portal also has proper authentication and authorization mechanisms in place.

    Technologies: JEE, Struts, Apache Tomcat, HTML, CSS, JavaScript

  • Languages
    Solidity, Java, JavaScript, HTML, CSS
  • Frameworks
    Truffle, GWT, Express.js, Hibernate, OSGi
  • Libraries/APIs
    Web3.js, Node.js, REST API, Socket.IO
  • Tools
    Remix IDE, Dapper, Apache Tomcat
  • Misc
    Ethereum, Ethereum Smart Contracts, Distributed Applications, ICO, ERC20, Smart Contracts, Blockchain
  • Paradigms
    Agile Software Development
  • Platforms
    Ubuntu, Hyperledger Fabric, JEE
  • Storage
    MongoDB, Amazon S3
  • Bachelor of Technology degree in Computer Science
    JSS Academy of Technical Education (UPTU) - Noida, India
    2009 - 2013
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