Available for work
Computer Science student at the University of Crete, full-stack developer, and founder shipping real products with Firebase, JavaScript, Node.js, and SQL.
Selected work
Platforms with paying users, client websites that convert, and university systems graded 100/100.
Founded and built end to end. A SaaS platform that helps tutoring centers track student payments, payment statuses, and parent communication in real time.
Validated with a real tutoring center. Live at edupay.gr.
Visit edupay.gr
Real-time event photo sharing for weddings, venues, and cafés. Guests scan, upload, and watch the photo wall update live.
259 photos shared across 12 hosted events, 99.9% upload success.
Visit picme-up.gr
Cyprus exam papers, AI flashcards, quizzes, and practice tests in one place, with Stripe-powered premium subscriptions.
Visit panexams-hub.com
A premium villa showcase with gallery, availability calendar, and direct enquiry flows. Built to turn lookers into guests.
Visit rentpaphosvillas.com
Bilingual auto dealer platform with touch-optimized vehicle galleries, URL-driven listings, and a secure admin panel on Firestore.
Visit carnovasales.eu
Mobile-first website for a smash burger brand in Paphos, with a full interactive menu, location map, and SEO-ready structure. The owner's review lives further down this page.
Visit streat-lab.comFrom idea to deployed product. Design, code, infrastructure, and launch.
End-to-end products like EduPay and PanExams Hub: auth, payments, dashboards, and real users.
Realtime apps on Firestore, Auth, Storage, Hosting, and Cloud Messaging.
Fast, polished websites for businesses across Cyprus and Greece.
Menu-first sites for cafés, diners, and bars that make people hungry.
Scheduling, availability, and booking flows without third-party engines.
Secure panels for listings, content, payments, and day-to-day operations, like the ones behind CarNova and P Square.
Tools for students, tutors, and institutes, from exam hubs to payment tracking.
QR-powered menus and ordering experiences for hospitality.
Custom plugins and Elementor builds when the stack calls for it.
Open Graph metadata, structured data, sitemaps, and performance budgets ship with every build.
Experience
Founded EduPay, a web-based SaaS platform helping tutoring centers manage student payments, payment statuses, and parent communication. Built the platform end to end using Firebase and modern web technologies, designed the UI/UX, validated it with a real tutoring center, and led branding, marketing, and customer discovery.
Support undergraduate Java Programming through lab assistance, code reviews, debugging guidance, and explanation of object-oriented programming and software design concepts.
Built and optimized the team website with mobile-first responsive design, SEO improvements, Open Graph metadata, sitemap, and partner marketing support. Collaborated with the marketing and social media team on visual content, partner promotions, and digital strategy.
Completed foundational training in generative AI principles, responsible AI use, and workflow-based applications.
Participated in hands-on workshops focused on idea validation, startup operations, collaborative problem solving, and entrepreneurial execution.
Supported event operations and gained insight into recruitment workflows through live interview sessions, networking with companies, and exposure to tech and business recruitment processes.
Supported logistics and workshops at Cyprus' largest robotics competition. Mentored students in Arduino programming, hardware troubleshooting, and robotics problem solving.
Completed 14 months of military service in the Armored Division as a tank gunner (Πυροβολητής). Achieved first place in Combat Training (Μαχητές) and Tank School (ΕΚΕ). Developed precision, decision-making under pressure, leadership, team coordination, and technical problem-solving in high-stakes environments.
I am a full-stack developer and Computer Science student at the University of Crete, based in Heraklion, Greece, with strong ties to Cyprus. My work combines engineering, design, product thinking, and entrepreneurship.
I founded EduPay, built PicMeUp and PanExams Hub, and ship client websites across Cyprus and Greece. I work with Firebase, JavaScript, Node.js, Express, SQL, PHP, WordPress, and modern frontend technologies, and I serve as a Java Teaching Assistant at my university. What drives me is simple: building things that solve real problems for real people.
The stack behind 30+ shipped projects.
Business Idea Pitch, University of Crete, EduPay
National innovation competition, Smart Irrigation System
National innovation competition, Smart Traffic Control System
Arduino line following robotics competition
BSc in Computer Science
References
Signed letters from professors and researchers at the University of Crete and FORTH.
Professor of Information Systems, University of Crete & FORTH-ICS
Laboratory Teaching Staff, University of Crete & Postdoctoral Researcher, FORTH
EAP/ESP Instructor & Course Developer, University of Crete
Associate Professor, University of Crete & Affiliated Researcher, FORTH-ICS
“PicMeUp transformed how we engage with customers at our café. Guests could instantly share and view event photos, the real-time upload was flawless, and Constantinos delivered a professional, reliable solution that exceeded our expectations.”
“Working with Constantinos on the PSquare project was a pleasure. His technical expertise and attention to detail brought our vision to life. The website is visually stunning, highly functional, and he delivered beyond what we expected.”
“Constantinos and Nikoletta created an outstanding website for StreatLab that perfectly captures our brand. A modern design approach with solid implementation made it fast, responsive, and engaging. Professional throughout, deadlines met. Highly recommended.”
Contact
A website, web app, SaaS platform, dashboard, or digital product: I can help turn the idea into a polished working product.
