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hkokk1234/readme.md

Hi, I'm Harrys (Zacharias Kokkinakis) 👋

Software Engineering Student · Full-Stack Developer · AI Builder

Integrated Master's Student in Information & Communication Systems Engineering
University of the Aegean

I build full-stack software and AI-powered products with a focus on backend systems, APIs, databases, automation, and practical real-world applications.


🚀 Featured Projects

Project What I Built Tech
AI Resume Defensibility AI-powered resume analysis platform designed to go beyond traditional ATS scoring by evaluating how well candidates can defend the claims in their CV, identifying weak evidence, skill gaps, and potential recruiter concerns. AI · NLP · Full-Stack · Resume Analysis
FestivalFlow Full-stack festival management platform with JWT authentication, five-role authorization, performance booking, rehearsal scheduling, and administrative workflows. Java · Spring Boot · Spring Security · REST
Task Manager Full-stack productivity application with task CRUD, priorities, deadlines, status tracking, filtering, search, pagination, and overdue/today indicators. React · TypeScript · Node.js · MongoDB
TabloidParserCompiler Compiler for a custom programming language that parses source code and transpiles it into executable Python, supporting functions, recursion, loops, and conditionals. Java · ANTLR4 · Python
Olive Spray Monitoring Android field-monitoring application using GPS and geofencing to guide agricultural spraying operations while protecting organic olive groves. Kotlin · Android · Firebase · GPS
Clinic Appointment & Patient Management System Full-stack system for patient records, medical history, appointments, and relational healthcare data management. PHP · MySQL
Chat Client-Server An offline-first desktop communication platform built with Java, Swing, TCP/UDP sockets, and SQLite. It automatically discovers nearby rooms, encrypts messages end to end, keeps durable history, supports channels and direct messages, and includes client-side AI tools. Java · Client-Server
Ticket Booking System Event booking application supporting registration, reservations, cancellations, payments, and separate user/admin workflows. Java

🤖 Currently Building

AI Resume Defensibility

I'm exploring how AI can improve hiring without simply generating better-looking resumes.

Instead of asking only:

“Is this resume ATS-friendly?”

the project also asks:

“Can the candidate actually defend what is written on the resume?”

The goal is to build features such as:

  • Resume evidence analysis
  • ATS and recruiter-oriented evaluation
  • Skill evidence mapping
  • Resume defensibility scoring
  • Weak-claim detection
  • Job-description matching
  • Recruiter rejection simulation
  • AI-generated interview questions based on resume claims
  • Career and skills-gap recommendations

💻 Tech Stack

Languages

Backend & APIs

Frontend

Databases

DevOps & Tools

Mobile & Other


🧠 Areas of Interest

  • Artificial Intelligence & LLM-powered applications
  • Software Engineering
  • Backend & API Development
  • Full-Stack Development
  • Distributed Systems
  • Cloud-native applications
  • Human-centered AI
  • Developer tools and automation
  • AI for recruitment and productivity
  • Power BI

🎓 Education

Integrated Master's in Information & Communication Systems Engineering
University of the Aegean · Samos, Greece
2022 – 2027 (Expected)

Relevant coursework:

  • Software Engineering & SDLC
  • Distributed Systems & Middleware
  • Database Systems
  • Computer Networks & TCP/IP
  • Information Security & Cryptography
  • Cloud Computing
  • Mobile Application Development
  • Artificial Intelligence & Machine Learning
  • Decision Support Systems

🔨 What I'm Currently Focused On

  • Building AI-powered full-stack applications
  • Exploring LLM integration and agentic AI patterns
  • Developing production-style backend architectures
  • Improving system design and cloud-native development
  • Building projects that solve practical user problems

📫 Let's Connect

I'm currently interested in:

Software Engineering · Backend · Full-Stack · AI Engineering Internships

📧 hkokk1234@gmail.com

Building software that solves real problems, one project at a time.

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Open to internship and junior developer opportunities.

Pinned Loading

  1. festivalflow festivalflow Public

    Spring Boot backend for managing music festivals — JWT auth with 5-role access control (Admin, Organizer, Staff, Artist, User), performance booking, rehearsal scheduling, and a responsive dark-them…

    Java

  2. TabloidParserCompiler TabloidParserCompiler Public

    A parser and compiler for the Tabloid programming language, built using ANTLR4. The project translates Tabloid source code (.tbd) into Python code and includes sample programs and grammar definitio…

    Java

  3. TaskFlow TaskFlow Public

    Production-ready collaborative task management platform built with React, TypeScript, Node.js and MongoDB, featuring authentication, workspaces, real-time updates, analytics and notifications.

    TypeScript

  4. EstateX-AI EstateX-AI Public

    Enterprise-grade AI-powered real estate platform built with Next.js, React, TypeScript, Node.js, PostgreSQL, Prisma, and modern web technologies. Features advanced property search, interactive maps…

    TypeScript

  5. social-networking-system social-networking-system Public

    PHP + MySQL social networking platform with feed, inline comments, username-based chat, voice-to-text, notifications, and admin moderation tools.

    PHP

  6. ai-resume-defensibility ai-resume-defensibility Public

    AI career intelligence platform that analyzes resume evidence, job fit, defensibility, rejection risk, and interview readiness.

    JavaScript