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Andrei – React, Redux, Angular, experts in Lemon.io

Andrei

From Romania (UTC+3)

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Front-end Web DeveloperSenior
8 years of commercial experience
Blockchain
Entertainment
Gamedev
Healthcare
Manufacturing
Public services
Retail
CRM
SaaS
Gaming software
Lemon.io stats
2
projects done
1163
hours worked

Andrei – React, Redux, Angular

Andrei is a senior front-end developer specializing in React and a lifelong learner constantly seeking to improve his technical skills! He values meaningful work with social impact and has served as a tech lead on fast-paced projects with weekly releases. Andrei has worked in small teams (5-10 people) and larger teams (40+ people). Additionally, Andrei holds a Bachelor's in Industrial Logistics Engineering!

Main technologies
React
7 years
Redux
7 years
Additional skills
Angular
AWS
Node.js
Lambda
Vuex
MobX
React Native
Golang
Git
Blockchain
GraphQL
DynamoDB
Amazon S3
Amazon SQS
Amazon SNS
Typescript
Vue.js
SCSS
Amplify
Material UI
Direct hire
Possible
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Experience Highlights

Full-stack Developer / Tech Lead
Aug 2021 - Ongoing3 years 10 months
Project Overview

A free-to-play poker platform tied to the World Series of Poker (WSOP).

Responsibilities:
  • Developed full-stack web applications using JavaScript with React.js and Node.js (NestJS);
  • Provided coaching and mentoring to junior developers to enhance team performance;
  • Improved the application bundling solution, reducing the initial chunk size by over 40%;
  • Implemented service workers with caching and precaching strategies, cutting initial load time by over 50%;
  • Translated UI/UX designs into fully functional end-user features using React, Pixi, and other tools;
  • Designed and built scalable front-end and back-end architecture.
Project Tech stack:
React
Redux
Webpack
Jenkins
JavaScript
Node.js
Senior Developer
Jun 2022 - Aug 20222 months
Project Overview

Multi organization, multi user platform for recording and managing industrial measurements done via a device. Pub-sub functionalities were added to track live measurements on the application. Controlling a device using AWS IoT.

Responsibilities:
  • Created front-end and back-end architecture;
  • Implemented front-end UI;
  • Implemented AWS Amplify from scratch;
  • Added Appsync and GraphQL schemas;
  • Created GraphQL resolvers with lambda function triggers;
  • Added authentication via Cognito groups, adding the functionality to have multiple users and multiple roles (role-based access control).
Project Tech stack:
AWS
Amplify
GraphQL
React
Node.js
Lambda
DynamoDB
SCSS
Material UI
Backup Tech Lead
Aug 2020 - Aug 20211 year
Project Overview

National health system app, it includes a number of features to protect you, including alerts letting you know if you may have been exposed to coronavirus (COVID-19), the latest advice based on your circumstances, a symptoms checker and general information on COVID-19.

Responsibilities:
  • Implemented microservices from scratch using Nodejs and AWS ecosystem
  • Maintained and constantly updated the Api Gateway (openapi)
  • Added and maintained new endpoints
  • Did architectural meetings and planning
  • Did estimation meetings
  • Delegated tasks
  • Did code reviews
  • Did bug fixing
  • Did unit testing
Project Tech stack:
React
Redux
Vue.js
AWS
Lambda
DynamoDB
Amazon S3
Amazon SQS
Amazon SNS
Node.js
Typescript
API Gateway
CloudWatch
Software Developer
Sep 2019 - Jul 202010 months
Project Overview

British multinational optical retail chain, which operates mainly in the UK. The chain offers optometry and optician services for eyesight testing and sells glasses, sunglasses, and contact lenses.

Responsibilities:
  • Used graphql extensively
  • Made unit testing
  • Built front-end components custom library
  • Did debugging, optimising the app
Project Tech stack:
React
Redux
GraphQL
Git
Vue.js
HTML
CSS
JavaScript
Software Developer
Apr 2019 - Oct 20196 months
Project Overview

Participated in developing a web platform and presentation website for a green energy supplier, which provides the customers the ability to pay and manage their bills through blockchain technology.

Responsibilities:
  • Implemented lazy loading on the entire application reducing the initial bundle size up to 50%
  • Refactored the application to use Vuex state management stores and modules, every module being decoupled one from another
  • Implemented new features which required a strong and constant communication with the team’s designer in order to deliver the product at the highest standards using Vue.js / React.js
Project Tech stack:
React
JavaScript
Vue.js
Redux
Vuex
MobX
React Native
Golang
Git
Blockchain

Education

2018
Industrial Logistics Engineering
Bachelor's degree

Languages

English
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