Laytimely
About

Two Greek founders. Owned in Greece and the EU.

Laytimely is the defence and dual-use product line of TabbPay (Greek IKE), a working, live software company. From incorporation, the company is structured for EU effective control, EU-hosted IP and data, and the long-pole accreditation path now under way. Restructuring to a defence-purpose-built entity is planned post-funding.

The founders

Engineering depth and finance discipline. Both Greek nationals.

Dimitris Kalligaridis
Chief Technology Officer

Dimitris Kalligaridis

LinkedIn

Incoming Software Development Engineer at Amazon. Google Summer of Code '26 contributor at the Eclipse Foundation, building an automated-refactoring test suite for the 4diac IDE in Java, JUnit 5 and EMF. AI Research Assistant at The American College of Greece under Dr. Ioannis Christou, researching adaptive bidding agents in competitive auction settings.

Founder and sole engineer of TabbPay, a multi-tenant QR ordering and in-venue payments platform built from scratch on an AWS event-driven backend, live with venues across Greece. Built the AI demurrage-claims agent at the Florent x Panathēnea Hackathon (2nd place). Built the offline Blood Test Explainer at the Build Small hackathon, fine-tuning a 1.3B MiniCPM-V model on Modal (F1 0.66 → 0.75).

Architect of Laytimely's fusion pipeline and the Models A–G suite. Deep skills in Python, PyTorch, CUDA, distributed systems, Java, and MLOps.

Background
BSc Hons IT, The American College of Greece; exchange CS, Boston College
Trading
IMC Prosperity 4: #2 in Greece, top 4.7% globally (30,703 entrants)
Research
Adaptive bidding agents, competitive auction settings
Open source
GSoC '26 at Eclipse: 4diac IDE refactoring test suite
Antonios Papatzanakis
Chief Executive Officer

Antonios Papatzanakis

LinkedIn

Studying for a Bachelor of Science in Economics and Management at Università Bocconi in Milan (expected 2027), concurrent with a Bachelor's in Accounting and Finance at the Athens University of Economics and Business (expected 2028). CFA Program Level I (June 2026), with results above the administration average across every examined topic area.

EY Athens internship analysing 60+ companies' financial statements for the Entrepreneur of the Year Award. Built DCF, trading comparables, and precedent-transactions valuation models; consolidated subsidiary accounts; prepared executive-ready presentations. Steel Ships Ltd internship in dry-bulk cargo operations: vessel maintenance, loading and unloading procedures, international trade and customs.

Leads commercial development, grant strategy, ELKAK / EDF / EIC engagement, consortium structuring, and the company's financial model.

Education
Università Bocconi (Economics and Management); Athens University of Economics and Business (Accounting and Finance)
Certification
CFA Program Level I (June 2026)
Industry
EY (valuation analyst); Steel Ships Ltd (dry-bulk operations)
Skills
DCF, comparables, precedent transactions, financial modelling
Anchored partners

A Greek national stack, not a lone software team.

Consortium pieces in hand: a Greek sensor, USV and integration prime partner; the credential bridge to NCSR Demokritos as the Greek DIANA accelerator site (linked to ELKAK / HCDI); a named Hellenic Navy and Coast Guard contact for operational pull and test-range access. DIANA's operator network complements these relationships rather than replacing them.

  • Sensor / USV / integration prime

    Greek partner. Hardware, platform integration, route into Greek defence procurement.

  • NCSR Demokritos

    Greek DIANA accelerator site. Research lab credential, academic depth, ELKAK/HCDI link.

  • Hellenic Navy / Coast Guard

    Named operational contact. End-user feedback, test-range access, requirements grounding.

Get in touch

If our description of the gap matches yours, we want to know.

Open a conversationfounders@laytimely.com