Engineering  AI SolutionsThat Deliver Results

Ship Fast. Iterate Faster.

Leveraging AI to build software products in record time.
Working on cutting-edge projects with Fortune 500 companies and VC-backed Startups.

Mike Chionidis

Hey there, it's Mike!
In the past 5 years, I have delivered 30+ end-to-end products and MVPs.
My philosophy is simple:
- Ship daily - Get instant feedback - Act immediately
If you're a startup founder, looking for a founding engineer, talk to me.

My Story:

From Data Curiosity to Product Leadership

My career journey reflects rapid advancement and a strong drive for innovation. I transitioned from a junior engineer to a founding team member of a VC-backed startup in just a few years.

Key Milestones & Rapid Ascent

🔹 Junior Data Engineer to Team Lead (2021-2023)

Starting as a Junior Data Engineer at Margera in 2021, I quickly advanced to a Full-Stack Product Engineering Team Lead within two years, leading a team of 4 engineers. During this period, I built AI products for global brands including Clarins, Samsung, Vodafone, and Fiat, directly engaging with enterprise clients like Publicis UK.

🔹 Entrepreneurial Ventures & Public Sector Impact (2024-2025)

Transitioning to a solo freelance role, I successfully developed two software solutions for the Greek Public Sector, impacting over 10,000 citizens monthly. I also contributed to a US AI Tech firm, DataAnnotation.tech, training and evaluating Large Language Models (LLMs), and built 4 proprietary products.

🔹 Founding Engineer at VC-backed Startup (2025)

In April 2025, I accepted a Founding Engineering position at headquarters.health, a San Francisco-based, VC-backed health-tech startup, marking a significant pivot to early-stage product leadership.

Educational Foundation

🎓 Master's in Electrical and Computer Engineering (AUTH, 2015-2021)

Graduated with a 3.8/4.0 GPA, ranking in the top 5% of my class.

🧠 Machine Learning Research

Specialized in Machine Learning Techniques, focusing on Feature Selection using Conditional Mutual Information (2020-2021).

Things I Build

Specializing in building modern AI-powered applications, autonomous agents, and data solutions

AI-Powered Web Applications

Modern, responsive web applications with integrated AI capabilities and exceptional user experience

Core Features

LLM IntegrationResponsive UIBusiness AutomationReal-time Processing

Technologies

Next.jsReactTypeScriptTailwind CSSShadcnOpenAIAnthropic

AI Agents

Autonomous AI agents that can reason, plan, and execute tasks

LangChainLlamaIndexRAGAutonomous AgentsTool UseMemoryPlanningReActReflexion

Data Products

End-to-end data solutions for analytics and machine learning

ETL PipelinesAnalyticsML ModelsGCPAWSDockerAPI Integration

My Products

SaaS solutions I've built to solve real-world problems

DataProjects.io screenshot

DataProjects.io

Level Up Your Data Skills: Build Your Portfolio with Real-World Projects on the Cloud!

Get hands-on experience on cutting edge cloud technologies. Build end-to-end, real-world projects. Stand out and impress recruiters.

Cloud-based learning environment
Real-world data projects
Cutting-edge technologies
InvoiceFlows screenshot

InvoiceFlows

Simplify Your Business Invoicing

Cut invoice processing time in half. Automate data extraction, track expenses effortlessly, and get real-time financial insights—so you can focus on growing your business.

Financial Management
Data Processing
Revenue Reporting
TheFairytale.App screenshot

TheFairytale.App

AI-powered platform that generates personalized children's stories in seconds.

As the founder and full stack AI engineer, I built the platform from the ground up — from concept and system design to development and launch. I designed a playful, family-friendly UX and developed the backend using LLMs to generate unique, age-appropriate stories based on user inputs.

AI Story Generation
Family-Friendly UX
Scalable Infrastructure
VibeFix screenshot

VibeFix

We debug, clean up, and ship your vibe-coded product.

A specialized service to get your project back on track. We dive into your codebase to identify issues, refactor for clarity, and ensure it's ready for deployment.

Code Debugging
Code Cleanup
Product Shipping

My Tech Stack

Front-end

ReactTailwind CSSTypeScriptNext.jsHTMLCSSJavaScriptShadcn

Back-end

PythonDjangoFastAPIFlaskCeleryRedisNext.jsAPI Integration

Cloud & DevOps

Google Cloud PlatformAWSVercelDockerKubernetes

Databases

MySQLPostgreSQLSQLiteSupabase

LLMs Integration

OpenAIAnthropicGeminiPerplexity

Tools & Platforms

v0ResendStripeCursorCodexGoogle Analytics

Case Studies

I've helped businesses through innovative technology solutions

Founder Insights

What People Say

I have had the pleasure of working closely with Michalis when he was a Lead Data Engineer at Margera. He consistently impressed me with his exceptional technical skills, innovative problem-solving abilities, and dedication to delivering high-quality results. His expertise and knowledge was invaluable to our team, contributing significantly to the success of several key projects and products.

Inder Hunjan

Inder Hunjan

Product Operations Director @ Performics UK

Let's Build Something Great!

🚀 Launching an MVP and need a tech lead?

💡 Want to integrate AI into your business?

🎯 Need a fresh perspective on your data strategy?

Let's connect and make it happen. The next step is just a click away.