Hi,

I'm Cristian Dumitru

Full Stack Software Engineer
stand_out

About Me

I am a Full Stack Software Engineer from Romania. Since beginning my journey in software development 9 years ago, I've acquired enough skills to start, manage, and complete a project from scratch, working for multinational companies. In my spare time, I enjoy hiking, reading and traveling.
Here are a few technologies I've been working with recently:
SolidityHardhatJavaScriptTypeScriptReactNext.jsNode.jsNestJSMySQLMongoDBElasticsearch

Skills

Frontend

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • Sass
  • Bootstrap
  • Ant Design

Backend

  • Node.js
  • NestJS
  • Express.js
  • MySQL
  • MongoDB
  • Elasticsearch
  • RabbitMQ
Created with Fabric.js 1.7.22

Blockchain

  • Solidity
  • Hardhat
  • Metamask
  • WalletConnect

Others

  • Git
  • GitHub
  • Docker
  • Jenkins

Experience

  • Full Stack Developer

    Krypton Labs
    December 2020 - Present
    • Frontend/Backend development in blockchain projects (Artxchains, Equalizer, LiquidStake).
    • Smart Contract development (Staking, Yield Farming, Minting NFTs).
    • Developed and integrated Verifiable Credentials and DID standards for secure user authentication.
    SolidityHardhatJavaScriptTypescriptReactNext.jsNode.jsNestJSMySQLMongoDBElasticsearch

  • Full Stack Developer

    Intralinks
    October 2018 - December 2020
    • Developed a task management application designed to help buyers efficiently organise and manage their due diligence processes for mergers and acquisitions (M&A).
    • Ported projects to Typescript and contributed to the adoption of Typescript in the team.
    • Started and coordinated the project theming process.
    • Researched and proposed a Test Management tool.
    JavaScriptTypeScriptReactReduxNode.jsExpress.jsMongoDBSassCarbon Design SystemJenkins

  • Full Stack Developer

    ETS Global
    February 2017 - May 2018
    • Developed the platform where B2B users can order the ETS tests.
    • Analysed and estimated over 30 tasks.
    • Prepared and presented sprint reviews.
    • Boosted user experience by 40% by using Observables.
    • Reduced page loading time by 25% by creating and using thumbnails for each picture.
    • Stored all files in Amazon S3. Improved the APIs response time by 30%.
    JavaScriptTypeScriptAngular 4PHPSymfonyAngularJSMongoDBMySQLRabbitMQAmazon S3Jenkins

  • PHP Developer

    eMAG
    July 2014 - February 2017
    • Served as a Backend Developer on the Order Management team.
    • Created RESTful API endpoints using PHP and Symfony.
    • Provided technical support during User Acceptance Tests and Go Live.
    • Resolved 100+ bugs in production to improve performance.
    • Decreased the process time by 20% by rewriting the old features.
    PHPSymfonyJavaScriptjQueryMySQLRabbitMQ
© Cristian Dumitru 2025, Built with Gatsby