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Condo97/README.md

Alex Coundouriotis

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Summary

B.S. in Computer Science graduate with 9+ years of iOS and Java development, consistently delivering creative solutions and impactful applications. Boasts a track record of 10+ ground-up app builds (6 currently on AppStore), averaging 8k–12k downloads monthly. Leveraged social media channels (TikTok) to grow a following of over 500k and drive 520M+ views. Passionate about AI, GPT integration, and delivering cutting-edge mobile experiences.


Education & Skills

  • Bachelor of Science in Computer Science from Kennesaw State University
  • 9+ years of iOS & Java software development
  • 10+ ground-up developed apps (6 currently on the App Store)
  • 8k–12k average monthly downloads
  • Achieved 500k+ followers & 520M+ views on TikTok

Notable Projects

Tech Stack: Swift, SwiftUI, CoreData, Java, MySQL, Firebase, Tenjin, GPT, Git
Period: 2021 – Present
• 25,000+ lines of Swift & SwiftUI using UIKit & Combine for camera/audio (AVFoundation)
• Integrated open-source Java GPT Library for live chats, computer vision, and structured outputs
• Custom Java server for chat interception, MySQL persistence & rate limiting
• StoreKit 1.0/2.0 server-side receipt & transaction validation with an open-source Java Apple Transaction Client Library
• 12 Swift packages (including an open-source face animation library, Firebase, MMPs)
• Averages 5–10k monthly downloads, 130k+ chats, 880 reviews (4.8 star average)

Tech Stack: Swift, SwiftUI, CoreData, Java, MySQL, Firebase, Tenjin, GPT, Git
Period: 2022 – Present
• GPT Structured Output to generate JSON recipes from fridge/pantry images
• Bing Image Search API for recipe images, TikAPI for relevant recipe videos
• Universal Links for recipe sharing & Java/MySQL for backend ID-based downloads
• Share Extension for importing recipes from video transcription (OpenAI Whisper), websites, or images
• 15,000+ lines of Swift & Java, using HTTPS and WebSocket with local (CoreData)/remote (MySQL) persistence

Tech Stack: Java, GPT-4 + Structured Outputs, JUnit Jupiter, Jackson, Git
Period: 2022 – Present
• Open-source Java GPT & OpenAI library for real-time chats, structured outputs, image creation, and audio transcription
• WebSocket support for live chats plus RESTful API usage
• Annotation framework for structured output POJOs—encode and decode structured responses


Corporate Experience

GreenSky: Software Developer (2017–2019)

• Swift, Objective-C, CoreData, UIKit, MS SQL, Agile/Scrum, Jira, Git
• Led iOS codebase upgrade from Objective-C to Swift with adaptive UIKit interfaces
• Participated in daily scrums, wrote proposals, collaborated with QA, and facilitated production releases
• Handled sensitive data (SSN, credit cards, addresses) with confidentiality and compliance

GreenSky: Software Development Intern (2017)

• Swift, Objective-C, CoreData, UIKit, Jira, Git
• Delivered PDF417 ID scanner for fast autofill on customer loan applications
• Contributed to conversion from Objective-C to Swift upon rapid completion of initial tasks
• Demonstrated flexibility: learned Objective-C on the job and moved to professional Swift development


Other Freelance Projects

SQL Componentizer (Java, MySQL, Open Source) – Serialize/deserialze Java objects & enums to MySQL via annotations and builder patterns.
Apple Transaction Client (Java, MySQL, Open Source) – Early StoreKit 2.0 transaction validation library, alternative to RevenueCat.
Call AI (Swift, SwiftUI, Java, MySQL, Google Analytics, Tenjin) – Simple OpenAI Realtime API WebSocket client/server with speech and transcription.
2024AI+CODE (Swift, SwiftUI, Java, Python, MySQL, ChatGPT, GPT Function Calling) – MacOS code editor leveraging GPT for multi-file actions and code suggestions.
AI+Vision (Swift, SwiftUI, Java, MySQL, Google Analytics, Tenjin) – Rapidly built AI camera control app integrated with existing open-source libraries.
Barback AI Drink Maker (Swift, SwiftUI, Java, MySQL, Google Analytics, Tenjin) – Creates drink mixes from a photo of a user’s home bar, meant as a 30-day SwiftUI challenge.


Links

App Store

GitHub


Skills & Proficiencies

Languages & Technologies

• Swift • SwiftUI • Java • Python • MySQL • Git • Maven
• Swift Package Manager (SPM) • ChatGPT • GPT Function Calling
• Google Analytics • Mobile Measurement Partner (MMP) • SSL

Experience

• iOS & Mobile App Development
• Full Stack & Backend Development
• AI & API Integration
• Front-End Development & Client-Server Architecture
• Multi-File Code Planning & Function Refactoring
• Open Source Libraries

Tools & Platforms

• Visual Studio & VSCode • Xcode • IntelliJ • Eclipse
• Git/GitHub • Shopify • TikTok Shop
• Facebook Ads Manager • Google Analytics • Firebase Analytics

Project Management

• Agile & Scrum • Requirement Analysis • Code Reviews
• Version Control • Cross-Functional Collaboration

Soft Skills

• Problem Solving • Critical Thinking • Team Collaboration
• Project Management • Communication • Time Management

Miscellaneous

• HTTPS / WebSocket Secure (WSS) • GPT Camera Control
• In-App Purchases • UX/UI • Modular Code Development
• Data Analytics


Ready to craft the next big thing in AI-driven mobile solutions? Let’s connect and collaborate on innovative, user-centric experiences. Feel free to reach out via email or phone for any iOS, AI, or full stack projects!

Pinned Loading

  1. Test-Chat-Client Test-Chat-Client Public

    Socket Chat testing

    Objective-C

  2. Once-A-Day Once-A-Day Public

    Once A Day is a simple exercise tracking app. It allows you to create and save exercises that appear every day, every other day, or every few days. Check off these exercises each day they appear to…

    Objective-C

  3. Java-GPT-Client-OAIGPTConnector Java-GPT-Client-OAIGPTConnector Public

    Java 1