Alexandru – React, Node.js, JavaScript, experts in Lemon.io

Alexandru

From Romania (UTC+3)flag

Back-end Web Developer|Senior
Full-stack Web Developer|Middle-to-senior
Lemon.io stats
1
projects done
200
hours worked

Alexandru – React, Node.js, JavaScript

Alexandru is a back-end heavy, experienced full-stack JavaScript developer who began his career in early 2017. He has honed his skills through numerous applications, often serving as a solo developer. His previous experience includes working on a repository web app for various projects, a web poker game, and an app for an insurance company!

9 years of commercial experience in
AI
Cryptocurrency
Customer support
Data analytics
Entertainment
Food and beverages
Gambling
Gamedev
Insurance
NFT
Social media
Transportation
Chatbots
Dev tools
ERP
Geospatial software
SaaS
Web3
Gaming software
Main technologies
React
5 years
Node.js
5 years
JavaScript
8 years
Additional skills
MySQL
Docker
HTML
Redis
Angular
Express.js
MongoDB
PHP
Symfony
Bootstrap
Typescript
AWS
GCP
CSS
Direct hire
Possible
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Experience Highlights

Senior Full-Stack Developer
Jul 2022 - Ongoing4 years 1 month
Project Overview

Grow sales and reduce tech complexity with the complete digital ordering and kitchen management platform cooked up by restaurant operators.

Responsibilities:
  • Responsible for managing microservices (over 25);
  • developing new features;
  • maintaining and improving old features;
  • keeping 90% test coverage.
Project Tech stack:
Node.js
React
MySQL
AWS
AWS Lambda
full stack developer
Apr 2022 - Aug 20224 months
Project Overview

NFT analyser tool

Responsibilities:
  • managing and improving old features
  • adding new features
Project Tech stack:
Node.js
Vue.js
Kubernetes
PostgreSQL
Blockchain
Front End Developer
Oct 2021 - Feb 20224 months
Project Overview

One of the most popular poker games in the world

Responsibilities:
  • Maintained, improved, and refactored existing features;
  • Added new features in the main game and mini-games;
  • Worked with complex animations in Canvas and CSS;
  • Maintained friendly User Experience.
Project Tech stack:
React
Typescript
HTML
CSS
PixiJs
Canvas
WebGL
Full-Stack Developer / Tech Lead
Apr 2021 - Oct 20216 months
Project Overview

A repository web app for different projects. The tool was designed to let users register their apps and query the repository with a complex filtering system. This gives users a nice view of all projects they are interested in and therefore removes the need to re-create already existing tools and use the existing ones.

Responsibilities:
  • Maintained, improved, and refactored existing features;
  • Developed new features;
  • Worked on both front end and back end parts of the application;
  • Took Business Intelligence decisions on implementing features;
  • Maintained deployment process;
  • Improved the architecture of the app;
  • Made integration with GCP modules like BigQuery, Cloud functions.
Project Tech stack:
React
Node.js
Bootstrap
MySQL
Redis
MongoDB
ElasticSearch
Docker
Drupal
HTML
CSS
Express.js
Front-End Developer
Feb 2021 - Apr 20212 months
Project Overview

A website for an insurance company.

Responsibilities:
  • Developed the front end of the application;
  • Cooperated with the client and server-side developers (hired directly by the client);
  • Split the job with another front end developer;
  • Developed precise UI reusable components with Angular;
  • Took decisions for UI/UX.
Project Tech stack:
Angular
Typescript
HTML
CSS
Docker
Developer
Jan 2020 - Mar 20211 year 2 months
Project Overview

An online casino with different kinds of gambling games.

Responsibilities:
  • Maintained, refactored, and improved existing features;
  • Added new features;
  • Split features based on user location and nationality as the app was available on all 7 continents and the behavior differed depending on each country's gambling standards;
  • Re-wrote the entire front end with React and added SSR (server-side rendering) while keep developing the old version.
Project Tech stack:
Angular.js
Node.js
HTML
CSS
Webpack
React
Typescript
Main developer
Jun 2020 - Oct 20204 months
Project Overview

An open-source mobility solution as part of an EU-founded project. The tool was designed to receive real-time location together with some pre-defined configs and monitor the user during a trip and also let a supervisor receive real-time push and in-app notifications if any event occurs like:

  • the user didn't reach a specific location in time
  • the user spent too much time in a specific location when it was not intended to
  • the user arrived just in time or with some delay or earlier at a specific location
  • the user didn't respect the predefined route and much more
Responsibilities:

The entire app was designed and developed by me as part of EU-founded project under the direct coordination o University Politehnica of Bucharest.

Project Tech stack:
Node.js
Redis
Typescript
Docker
Firebase
Express.js
Main Developer
Apr 2019 - Dec 20198 months
Project Overview

A Facebook chatbot designed to help users find solutions for a bunch of general issues. The bot has a nice WEB interface that lets the administrators easily edit, add, or remove questions and answers, add support for more than 10 languages, change flows between questions, customize the interface for questions and answers, and much more.

Responsibilities:
  • Was a solo developer on both front and back end;
  • Designed the entire architecture of the app and database;
  • Was responsible for CI/CD with Docker and Gitlab;
  • Was responsible for UI/UX;
  • Worked on integration with Facebook APIs.
Project Tech stack:
Angular
Node.js
MySQL
Bootstrap
Typescript
HTML
CSS
Express.js
Full-Stack Developer
Jun 2018 - Apr 201910 months
Project Overview

A tool that was designed to centralize data from different social media apps (e.g Facebook) and let the users manipulate that data (edit, reply, post new things). Another key feature is to perform some specific actions defined by the users (tag, filter, mark, etc.) and generate internal KPIs, track work for each individual action and user, and much more.

Responsibilities:
  • Maintained, improved, and refactored existing features;
  • Developed both front and back end parts of the app;
  • Refactored and redesigned the entire database.
  • Added new modules using better technologies on both front and back end;
  • Was responsible for UI/UX;
  • Created complex reporting and KPI stats system from scratch;
  • Worked on integration with Facebook APIs and google play APIs;
  • Used AWS s3.
Project Tech stack:
Angular.js
Angular
Symfony
PHP
MySQL
jQuery
AWS
HTML
CSS
Bootstrap

Languages

English
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