John Matzavrakos
@johnmatzavrakos
Ex-founder and Senior Product Leader driving product-led growth, integrations, and fintech billing at scale.
GreeceWhat I'm looking for
I am a product leader and ex-founder with a technical background, known for leading with empathy and a bias for action. I have led cross-functional teams across fintech, SaaS, travel tech, and e-commerce, delivering measurable outcomes like ARR growth, reduced churn, improved CSAT, and major cost savings.
I excel at product strategy, discovery, and delivery—building integrations, billing & invoicing systems, pricing platforms, and PLG initiatives. I combine hands-on technical understanding with stakeholder alignment to launch global initiatives, migrate acquired products, and scale products for thousands of B2B and B2C customers.
Experience
Work history, roles, and key accomplishments
DELed two product teams (Pricing; Invoicing & Billing Infrastructure) of 12 engineers and cross-functional partners, onboarding 100% of clients to New Prepaid Billing and delivering global features that increased enterprise CSAT by 36%.
Product Lead
Travelr
Jan 2024 - Dec 2024 (11 months)
Led a product team to deliver discovery-to-market features for travel SaaS, redesigning flight search UX and hotel API integrations that reduced abandonment by 40%.
FLLed Integrations & Extensibility team managing 100+ integrations, contributing >25% of €20m ARR and launching features that reduced API error revenue-blocking events by 73% and cut churn by 14%.
Senior Product Manager
team.blue
Jan 2021 - Dec 2022 (1 year 11 months)
Led Greece product team for Papaki and Top.Host brands, executing a 2022 product strategy that increased ARR by 10%, grew net sales by 23%, and improved web app performance by 230–400%.
Head of Product Development
Artiarc
Jan 2013 - Dec 2021 (8 years 11 months)
Co-founded and led product development, growing cumulative YoY revenue 500% and launching B2B hosting/SaaS offerings that increased ARR by 230% and CLV by 80%.
Head of Product Development
Spatiall
Jan 2017 - Dec 2019 (2 years 11 months)
Co-founded VR event ticketing startup, led product discovery and achieved top KPIs leading to exhibitions at Mobile World Congress and The Next Web.
Product Manager
Net One
Jan 2010 - Dec 2012 (2 years 11 months)
Reformed product strategy to focus on B2B, increasing B2B revenue by 32% and reducing B2B churn by 48%.
Education
Degrees, certifications, and relevant coursework
QTQuantic School of Business and Technology
Executive Master of Business Administration, Business Administration
2020 - 2020
Completed an Executive Master of Business Administration with specialisations in Advanced Corporate-Level Strategy, Startup Entrepreneurship, and Strategic Thinking.
LULancaster University
Bachelor of Science, Communication & Computer Systems
2007 - 2007
Hold a Bachelor of Science in Communication & Computer Systems earned at Lancaster University.
Availability
Location
GreeceAuthorized to work in
Website
mailto:john@matzavrakos.comJob categories
Skills
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