Available for work
Live now: EduPay · 70+ tutoring centres · 1,600+ students
Computer Science student at the University of Crete and founder of EduPay, building production-ready SaaS platforms and full-stack web applications with Firebase, JavaScript, Node.js, and SQL.
Selected work
A SaaS platform in production, an academy platform running 200+ athletes, and client websites across Cyprus and Greece.
Founded and built end to end. A SaaS platform that helps tutoring centres track student payments, payment statuses, and parent communication in real time.
Founder & full-stack developer · In production with 70+ tutoring centres managing 1,600+ students.
The largest system I have built. An academy management platform covering athletes, training groups, programmes, attendance and the whole billing cycle, with a passwordless parent PWA and Stripe Checkout reconciled into the academy's own ledger.
Sole developer at Air Balloon Digital Studio · In production with 200+ athletes · 30 sprints, 21 admin screens, 28 Cloud Functions, 131 acceptance tests.
A bright, playful digital home for a coffee spot with character. The giraffe-inspired identity comes through in bold yellow tones, friendly visuals, and smooth animation, without losing the local café charm.
Visit tziraf-coffee.web.app
A warm, character-driven home for a kafeneio in old Paphos. Vintage café details, earthy tones, and the brand's Mona Lisa mascot in a playful bilingual experience.
A premium villa showcase with gallery, availability calendar, and direct enquiry flows. Built to turn lookers into guests.
Visit rentpaphosvillas.com
A cinematic showcase for an American-classics diner in Heraklion. Expressive typography and appetite-forward photography, built menu-first around smash burgers, deep-dish pizza, and craft coffee.
Visit amerikanos-diner.web.app
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.
Experience
Jul 2026 - Dec 2026 · Now
Air Balloon Digital Studio · Erasmus for Young Entrepreneurs · Paphos
A 6-month placement in the EU-funded Erasmus for Young Entrepreneurs programme. I contribute to real client and internal projects across software development, digital product delivery, client work, and business operations.
Alongside the studio work I am developing EduPay as my entrepreneurial project, strengthening its product strategy, sales process, market validation, and customer acquisition.
Jan 2026 - Present
EduPay · edupay.gr
Founded EduPay, a web-based SaaS platform helping tutoring centres manage student payments, payment statuses, and parent communication. Built the platform end to end on Firebase, designed the UI/UX, and led branding, marketing, and customer discovery. It now serves 70+ tutoring centres managing 1,600+ students, and took 1st place at the University of Crete Startup Idea Pitch.
Firebase · JavaScript · UI/UX · Product · Customer discovery
Sep 2025 - Present
University of Crete · HY252 Object-Oriented Programming
Support undergraduate Java Programming through lab assistance, code reviews, debugging guidance, and explanation of object-oriented programming and software design concepts.
Java · OOP · Code review · Mentoring
Sep 2025 - Present
Minautor Racing Team · University of Crete Formula Student · minautoracingteam.gr
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.
HTML · Tailwind CSS · JavaScript · Firebase Hosting
I am a full-stack developer and Computer Science student at the University of Crete, based in Paphos, Cyprus, with strong ties to Greece. 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+ delivered projects, from SaaS platforms to systems-level work in C.
Nominated by Bizrupt, The King's Trust International · LinkedIn post
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
Bachelor’s thesis — 10/10, 18 ECTS. Front-end development of a digital application for the prevention of occupational injuries among orthopaedic surgeons.
References
Signed letters from professors and researchers at the University of Crete and FORTH.
“A very capable and highly promising young engineer and scientist.”
“His work stood out for its technical quality, attention to detail, and strong understanding of modern web development principles.”
“His ability to write clean and maintainable code, combined with his willingness to learn and improve, makes him a reliable collaborator.”
“A motivated, ethical, and capable individual who will undoubtedly be an asset to any academic or professional setting.”
“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.”
“Before EduPay I tracked payments on spreadsheets and spent every weekend working out who still owed us. Now every student’s payment status is on one screen and parents get notified automatically. It’s given me back several hours a week I used to lose to admin.”
“Constantinos delivered our website far faster than we expected, and the result speaks for itself. He captured the character of the garden and our family’s story in both Greek and English, without us having to explain things twice.”
“Most of our customers look us up on their phone before they come. The menu loads instantly and reads properly on a small screen, which is really all we needed.”
Contact
A website, web app, SaaS platform, dashboard, or digital product: I can help turn the idea into a polished working product.
