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Denis – Node.js, JavaScript, Flutter, experts in Lemon.io

Denis

From Bulgaria (GMT+3)

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Mobile DeveloperSenior
Back-end Web DeveloperSenior
Hire developer
20 years of commercial experience
Adult
Beauty
E-learning
Entertainment
Gamedev
Healthcare
Sports
Chatbots
Mobile apps
Gaming software
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Denis – Node.js, JavaScript, Flutter

Denis began his career nearly 20 years ago as a Front-End engineer before shifting his focus to Back-End development. In recent years, he has also gained proficiency in mobile development and became a Google Flutter contributor. Denis has extensive experience building apps from scratch, with MVPs of his latest projects completed and released within 4-5 months.

Main technologies
Node.js
3.5 years
JavaScript
6 years
Flutter
1.5 years
Additional skills
PHP
MySQL
C#
Unity
Java
MongoDB
Swift
React
SwiftUI
Objective C
Express.js
Firebase
Cloudflare
Socket.io
jQuery
Redis
REST API
Ready to start
To be verified
Direct hire
Potentially possible

Experience Highlights

Software Architect / Full-stack developer / Team lead
May 2021 - Aug 20221 year 3 months
Project Overview

It is a mobile fitness training app, focused on providing personalised training plans, based on a person's body properties and personal preferences, with the option to exclude exercises hitting painful body areas.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Created the architecture of the whole solution from scratch;
  • Designed and built the CMS for the app's main content;
  • Created the payment service;
  • Implemented analytics and tracking solutions;
  • Found and fixed a bug in Flutter's Official iOS in-app purchase plug-in which made him a contributor to the official Flutter Plugins repo;
  • Worked closely with the product owner to define and satisfy business needs.
Project Tech stack:
Flutter
Node.js
Express.js
MySQL
Cloudflare
Firebase
Mobile Game Developer, Product Owner
Oct 2020 - Feb 20214 months
Project Overview

It is an alphabet-learning game for toddlers and little kids. It was developed as a solo app released on the AppStore, but later it became a module in a larger app for kids' education called "Aldoo kids."

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Defined and developed the game;
  • Worked with a 2D artist for the graphics and animations;
  • Built, run and released the app on the Appstore.
Project Tech stack:
Unity
C#
iOS
Firebase
Software Architect, Team lead
Dec 2018 - Aug 20201 year 7 months
Project Overview

It is a based clicker game for adult audience.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Built the architecture of the whole solution;
  • Designed and created the main game-loop service;
  • Created client-build server (Unity) and implemented Gitlab's CI/CD pipelines;
  • Implemented 3rd party payments in a custom published .apk;
  • Lead a team of 6 developers.
Project Tech stack:
Node.js
Express.js
MySQL
Redis
Unity
C#
PHP
Back-End Developer, Team Lead
Sep 2018 - Nov 20182 months
Project Overview

It is a real-time chat system in a web-based game.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Designed the software architecture and built the system;
  • Integrated the chat system with the existing web-based game;
  • Managed a front-end developer;
  • Cooperated with the game designer and the product owner to define the business needs.
Project Tech stack:
Node.js
Express.js
Socket.io
Redis
JavaScript
jQuery
MySQL

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