Vadym S.
San Francisco, United States
100%
Job Success
Top Rated Plus
AI Agent developer | MVP | Web App SaaS | React & Node Full Stack dev
$45.00/hr
Raised $3M in just 3 weeks with an MVP? I made it happen.
✅ Full Stack & AI Engineer with 10+ Years of Expertise
✅ Blockchain & HealthTech Specialist with 6+ Years
✅ Launched 25+ Startup MVPs
✅ Developed 18+ AI-Driven Solutions, Including NLP and Vision Systems
✅ Boosted Client App Retention by 38%+
✅ Consistent On-Time Delivery with 45%+ ROI
✅ Built 12+ Secure Blockchain Platforms for DeFi and NFTs
🌟 I’m a Full Stack Software Engineer with a passion for AI, Blockchain, Web & Mobile Development, and HealthTech innovation. With over 10 years of experience, I create scalable, secure, and user-focused solutions for startups and high-growth sectors. Whether you need a cutting-edge AI chatbot, a DeFi blockchain platform, or a HealthTech MVP, I’m here to turn your vision into reality. Let’s build something extraordinary! ⚡️
🌟 As a Full Stack Developer and AI/Blockchain expert, I deliver end-to-end solutions that have helped startups secure $1.2M+ in funding and scale to 120K+ users. From AI-driven applications to secure blockchain ecosystems, I provide the technical expertise and business insight to drive success in FinTech, EdTech, and HealthTech.
🌟 My specialties include AI (NLP, computer vision, speech recognition) and blockchain (smart contracts, DeFi, tokenized assets), crafting robust applications with Python, TensorFlow, Solidity, and React Native for seamless, cross-platform performance.
✔️ As a Full Stack Engineer, I built a telemedicine app that improved patient retention by 42%.
✔️ As a Blockchain Specialist, I launched a DeFi platform handling $600K+ in transactions in its first 30 days.
✔️ As an AI Engineer, I created a conversational AI that increased user engagement by 35% for a FinTech client.
✔️ As a Mobile Developer, I revamped an app to earn a “Best Design” award on Dribbble.
✔️ As a Web Developer, I developed a SaaS platform that tripled the client’s revenue stream.
💻 Core Expertise & Technologies
AI & Machine Learning: Python, TensorFlow, PyTorch, Scikit-learn, OpenCV, Hugging Face for NLP, vision, and voice systems
Blockchain: Solidity, Ethereum, Binance Smart Chain, Web3.py, Hardhat, IPFS, NFTs.
Web & Mobile: React, React Native, Flutter, Vue.js, Angular, Django, FastAPI, WordPress.
Cloud & DevOps: AWS (EC2, S3, RDS), Google Cloud, Firebase, Docker, Kubernetes, CI/CD.
Databases & APIs: MySQL, MongoDB, PostgreSQL, GraphQL, REST, Stripe, Twilio integrations.
HealthTech: HIPAA-compliant systems, EHR integrations, wearable device connectivity.
🚀 MVP Development & Product Launch
From ideation to market, I ensure fast, high-quality launches with:
Agile Workflow: Rapid prototyping and clear milestones for quick market entry.
Secure Systems: Blockchain-grade security and compliant HealthTech architectures.
Engaging UX/UI: Designs that drive 40%+ conversion and retention rates.
⚙️ End-to-End Partnership
As an AI and Blockchain Engineer, I transform ideas into scalable, reliable solutions:
Strategy & Design: Creating robust, scalable plans with a focus on user experience.
Development: Writing clean, modular code using modern frameworks for optimal performance.
Ongoing Support: Providing updates, optimizations, and feature expansions post-launch.
🤝 Why Work With Me?
Measurable ROI: My projects consistently deliver 45%+ ROI for clients.
Reliability: With 25+ MVPs launched, I guarantee timely and budget-friendly delivery.
Transparent Collaboration: I combine technical expertise with business strategy to maximize funding or revenue growth.
Proven Impact: My solutions have empowered startups to raise $1.2M+ and grow to 120K+ users.
📱 Platforms I Build For
iOS & Android Apps
Web & SaaS Platforms
Blockchain & DeFi Ecosystems
HealthTech & Telemedicine Solutions
⚙️ Technologies
Frontend: React, React Native, Flutter, Next.js, TypeScript, JavaScript, Ionic.
Backend: Node.js, Python (Django, FastAPI), PHP (Laravel), NestJS, GraphQL.
Blockchain: Solidity, Web3.js, Ethers.js, Chainlink, Polygon, Solana.
AI/ML: TensorFlow, PyTorch, Keras, Rasa, Dialogflow, YOLO, SpaCy.
Cloud: AWS (Lambda, ECS), Azure, Firebase, Heroku, Vercel.
DevOps: Docker, Jenkins, GitLab CI, Ansible, Terraform.
Additional Expertise: WebRTC, SIP protocols, Data Analysis, FinTech payment gateways, Motion Graphics, Business Strategy.
Let’s team up to bring your AI, blockchain, or HealthTech project to life. Reach out today to kickstart your next game-changing solution! ⚡️
Work history
Work history
tool 2.0
Jan 10, 2025
-
Jan 22, 2025
Private earnings
SaaS Technology Platform
Mar 8, 2024
-
Jan 3, 2025
No feedback given
Private earnings
React Web Application for Equipment Booking of Workshops
Dec 6, 2024
-
Dec 30, 2024
Private earnings
Expert GPT Developer Needed to Build Self-Help Web App MVP
Nov 29, 2024
-
Dec 28, 2024
"Vadym was awesome to work with. Will be working with him again in the future!"
Private earnings
Product Pricing Utility
Nov 30, 2023
-
Nov 25, 2024
Private earnings
MVP Development Based On Existing Screen Layouts and Requirements
Mar 22, 2024
-
May 31, 2024
"Vadym was great to work with. He has a team of developers that he manages and they are all skilled, enthusiastic and effective. However, we did not have our requirements…
Private earnings
Full-stack Developer for SPA Web Application Development
Aug 25, 2023
-
Oct 5, 2023
Private earnings
Development of a web tool - from Front-end (GUI) towards back-end database and business logic
5.0
of 2 reviews
Sep 21, 2022
-
Aug 30, 2023
5.0
"Top score for a top performance delivered on all dimensions."
Private earnings
React / ApolloClient / Node.js expert for B2B SaaS app
Jan 17, 2023
-
May 30, 2023
"Great work on this project, thank you!"
Private earnings
Backend Development
Jan 24, 2023
-
May 26, 2023
"Its been awesome working with Vadim and his team. We've been working together for almost a year now and hope to continue to do so for a long time. We…
Private earnings
Fullstack or Backend Developer to build scalable webapp
May 13, 2025
-
Present
Job in progress
Private earnings
Transform AI Property Listing MVP into Commercial Product
Feb 20, 2025
-
Present
Job in progress
Private earnings
Edits for Upspire
Feb 17, 2025
-
Present
Job in progress
Private earnings
Build an App for Interactive Storytelling
Jan 15, 2025
-
Present
Job in progress
Private earnings
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Skills
Skills
- Node.js
- JavaScript
- TypeScript
- Web Development
- React
- Python
- Artificial Intelligence
- API
- Chatbot Development
- Next.js
- Web Application
- API Integration
- ChatGPT
- AI Development
- AI Chatbot
Project catalog
Get started working with Vadym quickly with these predefined projects.
Get started working with Vadym quickly with these predefined projects.
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