
Emilian
From Romania (UTC+3)
8 years of commercial experience
Lemon.io stats
1
projects done280
hours workedEmilian – Express.js, React, JavaScript
Please meet Emilian - a Blockchain enthusiast with 4 years of commercial experience with Solidity. He is also experienced with Back-end development using Node.js and Typescript and building AI-based automations. His passion is duly backed up by experience in building projects from scratch to meet clients' needs. Among his projects, you will find a crypto game, a low-code blockchain development platform, and several projects in the travel and entertainment industries. Hurry up to have a Senior-level Blockchain specialist on board!
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Let’s get started today!Experience Highlights
Full-Stack Software Engineer
The project is a document management tool, specifically designed for the geospatial industry.
- built Angular applications;
- built Node.js + Express.js APIs;
- analyzed and improved code quality and performance;
- researched for new engineering ideas and concepts, applicable for enhancing scalability, performance, stress resistance, optimization, etc.;
- performed daily code reviews.
Blockchain & Front-End Engineer
A SPA for a sentinel node sales campaign on Arbitrum network. About 95% of the app is done, it still needs some minor changes before making it official to the community.
- built an upgradeable smart contract used for on the web application;
- debugged and tested the smart contract via unit tests;
- deployed and verified the smart contract on Arbitrum testnet and mainnet;
- build the web application in Next.js with TypeScript;
- integrated the smart contract on the application using Wagmi and RainbowKit
Blockchain & Full-Stack Software Engineer
A crypto game available on Polygon. Here a user can compete in exciting arenas against other players, breed new generations and win races to earn prizes, earn passive income by owning arenas, etc.
- designed, built, tested, debugged, deployed, and maintained the smart contracts, using: Solidity, Hardhat and ethers.js;
- helped the front-end team with blockchain-related code implementations, regular code implementations, code improvements, UI/UX advice, and help;
- had a decisional impact regarding the project future;
- built, tested, and debugged the back-end, using Node.js + Nest.js;
- system designed the project for multi-blockchain compatibility;
- wrote extensive unit, integration, and e2e tests.
- used multiple database technologies, such as: MariaDB, PostgreSQL and SQLite(for testing environment);
Full-Stack Software Engineer
An AI-automated marketing platform for small and medium size businesses.
- created front-end and back-end architecture, mainly working with React.js + Redux and Node.js + Express.js + Apollo GraphQL;
- built front-end components library;
- debugged and resolved the application issues;
- wrote unit, integration, and e2e tests;
- implemented different third-party-based features on the app;
- implemented numerous automated bots.
- built AI-based automations;
Senior Back-End Engineer
A crypto bot designed to automate the trading of ERC20/ERC721/ERC1155 tokens.
- created the back-end architecture;
- debugged and resolved the bot issues;
- wrote unit and integration tests;
- integrated with different providers.
Blockchain & Full-Stack Software Engineer
Borrow ETH by using your NFT as collateral. Lend and earn for providing liquidity on the marketplace.
- designed, built, tested, debugged, deployed and maintained the project smart contracts;
- designed, built, tested and debugged the back-end architecture;
- helped the front-end team with blockchain related code implementations, regular code implementations, code improvements, UI/UX advice and help;
- wrote unit, integration and e2e tests;
- system designed the project for multi-blockchain compatibility;
- had decisional impact over the project and the company in general;
Blockchain & Full-Stack Software Engineer
A low-code blockchain development platform. Here a user can configure, deploy, and integrate the blockchain layer with no need to dedicate significant time, talent, and money.
- designed the entire project as a multi-blockchain platform;
- built, tested, and debugged the front-end and back-end architecture, mainly using React.js + Redux and Node.js + Express.js;
- selected, published, and maintained smart contracts on the platform's public smart contracts marketplace;
- provided code updates and implemented new features along the way;
- wrote unit, integration, and e2e tests;
- integrated both front-end and back-end with multiple blockchain networks;
- upgraded the platform functionality to support both public and private blockchains;
- designed, built, tested, debugged, deployed and maintained smart contracts on both public and private blockchain networks available on the platform;
Blockchain & Full-Stack Software Engineer
A decentralized marketplace for tourists in France. Features include gift cards, loyalty cards, single-use vouchers, subscription vouchers, permanent discounts, etc.
- built the front-end and back-end architecture, mainly working with React.js + Redux and Node.js + Express.js;
- debugged and resolved the application issues;
- wrote unit, integration, and e2e tests;
- designed the application to support multiple blockchain networks;
- improved the initial UI/UX, according to the users feedback;
- designed, built, tested, debugged, deployed, and maintained the smart contracts used;
- integrated the app on the company private blockchains ecosystem;
Full-Stack Software Engineer
A decentralized platform designed for tourist attractions, where users can book visits to some locations and can get/win/purchase vouchers or coupons to spend during their trip.
- created front-end and back-end architecture;
- built front-end components library;
- debugged and resolved the application issues;
- wrote unit, integration, and e2e tests;
- designed, built, debugged, tested, deployed, and maintained the project-related smart contracts.
Full-Stack Software Engineer
An app initially designed for a hotel from Bucharest which was later turned into a bigger & customizable platform as a decentralized SaaS solution for other hotels which were interested in blockchain technology. Most of the core app functionalities were blockchain-based, the smart contracts were built in Solidity and the network used was a private Quorum network. The back end was built using Node.js + Express.js and the front end was built using React with React Hooks. Typescript has been used on both ends. The client was very happy with the product delivered.
- created front-end and back-end architecture, mainly using Node.js + Express.js and Vue.js + EJS;
- built front-end components library;
- debugged and resolved the application issues;
- wrote unit, integration, and e2e tests;
- designed, built, debugged, tested, deployed, and maintained the project-related smart contracts.