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Dmitry – Flutter, Dart, Java, experts in Lemon.io

Dmitry

From Portugal (UTC+1)flag

Mobile Developer|Senior
Lemon.io stats
2
projects done
6225
hours worked

Dmitry – Flutter, Dart, Java

Do you know what feels better than having an app developer with a marketing background on your team? Nothing. Nothing feels better than that, and that’s exactly what Dmitry is going to bring to the table. Dmitry has 10+ years of experience in various roles (including marketing) in tech. For the past 5 years, he’s been focused entirely on gaining hands-on commercial experience in app development, and he’s now exclusive to Dart and Flutter. He loves Flutter so much, he’s deeply involved in the community, and our mind control app says he often dreams of it at night. A real Flutter-flattering guy.

15 years of commercial experience in
Administration
Banking
Blockchain
Consulting services
Cryptocurrency
Dating
Entertainment
Fintech
Food and beverages
Gamedev
Healthtech
Human resources
Information services
Social media
Mobile apps
Virtual reality software
Web development
Main technologies
Flutter
5 years
Dart
5 years
Java
5 years
Additional skills
JavaScript
Firebase
Android
MySQL
PHP
REST API
Firestore
SQLite
Maven
Unity
C#
CI/CD
iOS
Node.js
ARKit
Unity3D
Claude LLM
UI/UX
Stripe API
Rewards and achievements
Tech interviewer
Top community devotee
Tech influencer
Direct hire
Possible
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Let’s get started today!

Experience Highlights

Co-Founder/COO/ Technical Lead
Feb 2024 - Jun 20251 year 4 months
Project Overview

A meal planning and preparation app targeting busy families and professionals.

Responsibilities:
  • Led complete product development lifecycle from initial concept to successful market release.
  • Architected and developed a cross-platform application using Flutter for iOS, Android, and Web platforms.
  • Achieved product-market fit with 1,000+ active users within the first month after public release.
  • Designed scalable application architecture supporting complex meal planning algorithms and user personalization.
  • Implemented full-stack solution including mobile apps, web platform, and backend infrastructure.
  • Established development processes from sprint planning to production deployment.
  • Built CI/CD pipelines, ensuring quality gates and automated testing throughout the development cycle.
  • Integrated Claude AI into development workflows, improving team productivity and code documentation quality.
Project Tech stack:
Flutter
Flutter WEB
Android
iOS
Claude LLM
TelegramBotAPI
Senior Flutter Developer
Dec 2021 - Oct 20242 years 10 months
Project Overview

Dmytro was hired to create the mobile version of a platform focused on staffing in the dental sector within the USA.

Responsibilities:
  • Developed the app from scratch to its release in stores.
  • Designed the app’s architecture.
  • Collaborated with the product designer and product owner to ensure top-quality delivery.
  • Trained a junior Flutter developer.
  • Developed and set up automated testing, specifically integration tests.
  • Set up the CI/CD infrastructure: ran code tests on Codemagic, using linters for code checks, and managed app builds and releases for internal testing channels and store publication.
Project Tech stack:
Flutter
CI
CD
Dart
Android
iOS
Co-founder / Sole Developer
Aug 2019 - Mar 20244 years 7 months
Project Overview

It is Dmitry's pet project that he developed and maintained. The idea of the project is to get the photo of cosmetic ingredients, recognize text, match them with the EU CosIng database and provide a detailed explanation to users which of these ingredients have restrictions.

Responsibilities:
  • Developed the architecture and everything else related to the tech side. One man army :)
Project Tech stack:
Flutter
Firebase
Google auth
Apple auth
Firestore
FireBase Analytics
Neumorphic UI
Sole Flutter Developer
May 2020 - Sep 20211 year 4 months
Project Overview

Cleaning service app with a booking feature.

The project was built on ButyPro CRM as a provider of REST API and Firebase for OAuth with phone + SMS registration flow.

Responsibilities:
  • Was responsible for the development of the project.
  • Performed code reviews.
  • Set up CI/CD flows.
Project Tech stack:
Flutter
Firebase
third party CMS
Head of the Development Team
Nov 2020 - Jun 20216 months
Project Overview

The customer provided a complete REST API for the dating application. The challenge was to create two very similar dating apps based on this API, but on top of the app, the team had different match initial users' requirements: first was video streaming, and the second was the question test. As a solution, it was decided to separate all REST API: OAuth with email, FB, Google, Apple, chat, like, coins(spend and buy), profile; separate dart package to reduce development and support time, and on top of this package create two applications.

Responsibilities:
  • Performed code reviews.
  • Solved non-trivial tasks.
  • Built the app architecture.
  • Designed the system components.
Project Tech stack:
Flutter
in-app purchase Android
iOS
Video Chat with Agora service
Team Lead
Aug 2020 - May 20219 months
Project Overview

Neo banking application for the UK, Germany and Italy customers. It allows users to register bank accounts, order virtual and physical cards, make a personal identity check with Jumio SDK, and use the app as a pocket wallet. It was an MVP for the first release.

Responsibilities:
  • Dmitry managed the team of 4 Flutter developers.
  • Set project architecture as MVVM based on standard Flutter state control 'providers' and changed Notifier.
  • Set delivery CI/CD workflow with Codemagic to send sprint build directly to TestFlight (iOS) and FireBase AppDestribution (Android).
  • Set code review rules and organized the code review process.
Project Tech stack:
Flutter
Jumio SDK
Flutter Developer
Feb 2020 - Apr 20202 months
Project Overview

Audio books provider in Brazil.

Responsibilities:
  • Refactored and optimized existing flow.
  • Reworked architecture of the app to be more flexible and stable.
  • Handled and refactored UI performance issues.
  • Published and delivered app to stores.
Project Tech stack:
Flutter
Firebase

Education

2010
Mathematics, Optimization Theory
Master’s

Languages

English
Advanced

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