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Dmytro Y.

@dmytroy6

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AI, Web3 & Mobile Engineer | Security Auditor

$30 USD / Hour

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Poland (1:59 PM)

Joined on January 19, 2026

1 Recommendation

$30 USD / Hour

I’m an AI, Web3, Web & Mobile Engineer and Security Auditor with several years of experience building secure, scalable products from idea to production. I help startups and businesses ship fast, reliable web, Android, and iOS applications, integrate blockchain features, and strengthen security across code, APIs, and infrastructure. I build with React, Node.js, .NET, and modern JavaScript, and develop cross-platform and native mobile apps for Android and iOS. I’m comfortable working across full-stack systems including databases, authentication, APIs, and cloud deployments. For Web3, I deliver smart contract integrations, wallet connections, and on-chain workflows following strong security best practices. I also perform security audits to identify vulnerabilities early and harden applications before launch. If you need a developer who communicates clearly, works independently, and focuses on quality and security, I’d be happy to help. Core skills: AI features & automation • Web3 integrations • Android & iOS mobile apps • Security auditing • APIs • Performance & SEO • Shopify/WordPress • React • Node.js • .NET

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Accept rate

100%

Portfolio

Portfolio

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Experience

CMS Developer

Jan, 2024 - Nov, 2025

1 year, 9 months

onlinemictest

Jan, 2024 - Nov, 2025

1 year, 9 months

- Led end-to-end development of the project from initial concept to production - Deployed and maintained the application in a live online environment - Implemented performance testing and optimization for both iOS and Android platforms - Applied SEO best practices and integrated PayPal and ChatGPT APIs for payments and AI functionality

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California, United States

Jan, 2024 - Nov, 2025

1 year, 9 months

Full Stack | AI Developer

Mar, 2022 - Dec, 2023

1 year, 9 months

xFigura

Mar, 2022 - Dec, 2023

1 year, 9 months

- Integrated OpenStreetMap for geospatial visualization and location-based features - Implemented SEO best practices to improve search engine visibility and performance - Developed image, 3D model, and video generation features, along with backend services, using React, Next.js, and TypeScript - Integrated OpenAI APIs to enable AI-powered functionality - Designed and developed an interactive 3D model editor - Integrated Speckle and WorldLabs for data interoperability and 3D workflows

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Boston, United States

Mar, 2022 - Dec, 2023

1 year, 9 months

Education

Central State University

2017 - 2019

2 years

Bachelor of Science

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United States

2017 - 2019

2 years

Politechnika Poznanska

2015 - 2017

2 years

Master's degree

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Poland

2015 - 2017

2 years

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