Deyan – React, React Native, Node.js, experts in Lemon.io

Deyan

From Bulgaria (UTC+3)flag

Full-stack Web Developer|Senior
Lemon.io stats
1
projects done
600
hours worked

Deyan – React, React Native, Node.js

Deyan is an adaptive, responsible engineer who always gives his best to deliver the finest quality software. Client satisfaction and good-looking sustainable systems drive him forward. He loves solving problems through technology!

10 years of commercial experience in
Consumer services
Cybersecurity
E-commerce
Food production
Healthcare
Logistics
Marketing
Collaboration tools
Dev tools
ERP
SaaS
Main technologies
React
1 year
React Native
1 year
Node.js
1 year
Next.js
1 year
Typescript
1 year
Additional skills
PostgreSQL
Context API
Apollo Client
HTML
Tailwind CSS
Material UI
Webpack
Jest
Chai
Yarn
Xcode
Android Studio
Express.js
Prisma
Sequelize ORM
Docker
Redis
DynamoDB
Firebase
Realm
REST API
DigitalOcean
AWS
Heroku
Unit testing
Microservices
OOP
Unix
Git
CI/CD
CSS
Direct hire
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Experience Highlights

Senior Full-stack developer
Jan 2021 - May 20221 year 4 months
Project Overview

Onno Plus helps thousands of German businesses achieve and maintain an excellent online presence. Their services include removing fake and harmful online reviews, monitoring and aggregating review platforms, and boosting customer engagement.

Responsibilities:
  • implementing the most complex front-end tasks
  • introducing flow for lead generation and easy tracking
  • create a logging feature that tracks different actions of the various stakeholders of the system
  • introducing a tool that generates Typescript types for GraphQL requests
  • create a client-facing platform enabling customers to manage their online reviews across different review platforms
  • implementing an offer generation tool, which facilitates sales reps to create and send offers to end clients quickly and efficiently
  • performing daily PR reviews, frequently team discussions & client demos, and onboarding new team members
Project Tech stack:
React
Context API
React Hooks
Next.js
Node.js
Express.js
GraphQL
PostgreSQL
Typescript
TailwindCSS
Mustache
Docker
Front-end developer
May 2019 - Dec 20201 year 7 months
Project Overview

A platform connecting care providers with patients. Patients can easily follow their daily tasks, alert, and chat with doctors when necessary. Conversely, care providers can monitor patients’ conditions, prescribe medicine or exercises, and many more.

Responsibilities:
  • performing a full data management overhaul of the mobile app replacing its core engine with Realm
  • reducing app syncing time by 3x to 4x
  • introduced a concept for writing universal components applicable in both web and mobile via react-native-web
  • reducing development time nearly by 2x, allowing us to move fast and implement various features in a short time
Project Tech stack:
React Native
React
Redux
React Hooks
Typescript
Node.js
Express.js
PostgreSQL
Typescript
Docker
Websockets
Redux-saga
react-native-web
Full-stack developer
Oct 2018 - Mar 20195 months
Project Overview

Fishland is a worldwide renowned seller of fish and fish products and it operates in Europe, Asia, and North America. They needed an ERP system that combined accounting, storage, production, and transportation.

Responsibilities:

● Developed new features

● Debugged and resolved application issues

● Wrote unit tests & e2e tests

● Expanded, tested & documented the API

Project Tech stack:
Redux
HTML
CSS
MySQL
Mocha
Chai
React
Node.js
Express.js
Senior Front-End developer, Team Lead
Apr 2022 - Unfinished4 years 4 months
Project Overview

To definitively fight against online scams, FranceVerif offers a free anti-scam tool that scans e-commerce sites in one click. Essentially the application provides safety on the Internet. Their primary objective is to protect the customers and encourage them to acquire the right reflexes by scanning the websites before making a purchase. Apart from that, the platform offers an engine for finding the best price and available coupons for a specific item on the Internet.

Responsibilities:

● Performed full UI & UX overhaul of mobile application

● Led a team of 3, managed tasks & helped with the most complex features

● Increased overall code quality by introducing various tools & techniques

● Integrated Google, Facebook & Apple Authentication

● Performed perfect-pixel design across different screen types

● Was responsible for app new builds and deployments

Project Tech stack:
React Native
Context API
React Hooks
CSS
Formik
Firebase
GCP
react-native-push-notifications
react-native-share-menu
Lottie animations

Languages

English
Advanced

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