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Vladyslav Y, .NET MAUI Developer
Vladyslav Y
🇵🇱Poland (UTC+01:00)
Created AtUpstaffer since August, 2026
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Vladyslav Y — .NET MAUI Developer

Vetted expert in Mobile Apps (9.0 yr.), .NET MAUI (4.0 yr.).

 Last verified on August, 2026
Senior
English C1

Core Skills

.NET MAUI
.NET MAUI
4 yr.
Xamarin
Xamarin
9 yr.
.NET
.NET
9 yr.
SQLite
SQLite
9 yr.
AWS
AWS

Bio Summary

  • Engineer with 9+ years in mobile app development using Xamarin, Xamarin.Forms, and .NET MAUI, delivering cross-platform solutions for US, UK, and UA clients.
  • Expertise in MVVM frameworks (MvvmCross, MvvmLight) and database technologies including SQLite and Realm.
  • Proven track record leading teams and architecting scalable apps with CI/CD pipelines using Jenkins, AppCenter, and Azure DevOps.
  • Azure, AWS, and GCP cloud services
  • Experience integrating complex payment systems (Stripe, ACH, PayPal) and backend services with REST APIs and EFCore.

Technical Skills

Programming Languages C#, Rust, TypeScript
.NET Platform EF Core, .NET, WPF
Mobile Frameworks and Libraries Flutter, .NET MAUI, Xamarin
Databases & Management Systems / ORM Realm, SQLite
Cloud Platforms, Services & Computing AWS, Azure, GCP
Azure Cloud Services Azure DevOps
Methodologies, Paradigms and Patterns Agile, Behavior Driven Development, FDD, MvvmCross, MvvmLight, Scrum, TDD
Third Party Tools / IDEs / SDK / Services AppCenter, ReSharper, Rider, Visual Studio
Virtualization, Containers and Orchestration Docker
SDK / API and Integrations GraphQL, PayPal API, RESTful API, Stripe
Deployment, CI/CD & Administration Jenkins, VSTS
Collaboration, Task & Issue Tracking Jira, Phabricator
Platforms QuickBooks

Work Experience

.NET MAUI & Xamarin.Forms Lead Developer (current job)

May 2022 - August 2026

.NET MAUI, Xamarin.Forms lead developer (US On-Demand Home & Local Services app)

September 2025 - August 2026

Summary: App helps companies to manage provided services, streamlining service management and payment processing.

Responsibilities:

  • Architecture decisions making
  • Developing
  • Unit tests writing
  • Native libraries binding
  • Planning work for the team
  • Integrating Stripe payments in the app
  • Integrating ACH payments
  • CI/CD

Technologies: C#, .NET, Xamarin.Forms, .NET MAUI

.NET MAUI developer (Loans app)

June 2024 - August 2025

Summary: Application that helps users manage their loans, providing financial management tools and payment integration.

Responsibilities:

  • Architecture decisions making
  • Development
  • Unit tests writing
  • Native libraries binding
  • Planning work for the team
  • Integrating Paypal payments and payout
  • CI/CD

Technologies: flutter, typescript, rust, graphql

Flutter developer (Agilio app)

May 2022 - May 2024

Summary: App connects professionals with companies which have jobs to be done, facilitating job matching and service provision.

Responsibilities:

  • Architecture decisions making
  • Developing
  • Unit tests writing
  • Native libraries binding
  • Planning work for the team
  • Integrating Stripe payments in the app
  • Integrating ACH payments
  • Integrating QuickBooks
  • CI/CD

Technologies: flutter, typescript, rust, graphql

.NET backend developer (construction machine management app)

March 2022 - April 2022

Summary: App for a UK company renting construction machines, helping to manage machines and workers, assign tasks, and gather metrics.

Responsibilities:

  • Architecture decisions making
  • Developing
  • Unit tests writing

Technologies: C#, .NET, EFCore, Docker

Xamarin / .NET Engineer, NDA

(December 2018 - February 2022)

iFit mobile app

February 2021 - February 2022

Summary: Mobile fitness application providing workout tracking and fitness coaching services to users.

Responsibilities:

  • Architecture decisions making
  • Developing
  • Unit tests writing

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite

Healthcare app

December 2020 - January 2021

Summary: Application that helps hospitals provide services and medical equipment to clients, improving healthcare service delivery.

Responsibilities:

  • UI for both platforms (Android/iOS)
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Publishing app to stores

Technologies: C#, .NET, Xamarin.Native, MvvmCross, Realm

Squad lead (Umbrella, Softserve)

December 2018 - December 2020

Summary: Complex module-based application for the construction industry, supporting various construction management tasks.

Responsibilities:

  • Developing
  • Unit tests writing

Technologies: C#, .NET, Xamarin.Native, MvvmLight, SQLite, Azure

Xamarin Mobile Developer

(March 2016 - November 2018)

First Messenger

January 2018 - November 2018

Summary: Messenger application developed from scratch providing communication services for users.

Responsibilities:

  • Developing application from scratch
  • UI for both platforms (Android/iOS)
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Publishing app to stores

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite, REST API

O.V.N Logistics

October 2017 - December 2017

Summary: Mobile application for an American logistics company to help their drivers find comfortable loads, optimizing logistics operations.

Responsibilities:

  • Developing application from scratch
  • UI for both platforms (Android/iOS)
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Publishing app to stores

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite, REST API

Synevo labs (mLab Enterprise mobile)

June 2017 - September 2017

Summary: Mobile application for Synevo labs simplifying the procedure for patient care when taking tests.

Responsibilities:

  • Developing
  • Decision-making

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite, REST API

Synevo labs (mLab Enterprise)

March 2017 - June 2017

Summary:

  • Desktop WPF C#
  • .NET-based client application for Synevo Labs simplifying the procedure for patient care when taking tests

Responsibilities:

  • Developing application from scratch
  • UI with XAML
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Creating installation package

Technologies: C#, .NET, WPF, MvvmCross, SQLite, REST API

TOWNPASS

July 2016 - March 2017

Summary: Entertainment application for Ukrainian cities providing information about cafes, restaurants, museums, theaters, and more.

Responsibilities:

  • Developing the application from scratch
  • UI for both platforms (Android/iOS)
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Publishing app to stores

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite, REST API

OCBB.UA

March 2016 - June 2016

Summary: Mobile application for organization of co-owners of apartment buildings across Ukraine, facilitating communication and management.

Responsibilities:

  • Developing application from scratch
  • UI for both platforms (Android/iOS)
  • Business logic development
  • Connection with backend
  • DB layer development
  • Builds automatization
  • Publishing app to stores

Technologies: C#, .NET, Xamarin.Native, MvvmCross, SQLite, REST API

Education

  • Master's degree, Artificial Intelligence
    Donetsk National University
    2015 – 2017

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