YANNIS KARAGIANNIDIS

TRANSFORMATIONAL PRODUCT-LED GROWTH & AI MARKETING EXECUTIVE
London, UK.

About

Innovative Product-Led Growth Executive with over 15 years of pioneering digital transformation, specializing in strategic AI implementation and data-driven growth. Expertly architected end-to-end PLG ecosystems, driving 30-50% efficiency gains in customer acquisition and retention, and developing proprietary AI-powered marketing automation systems that consistently outperform industry benchmarks by 2-3x. A technical visionary, I leverage advanced analytics, predictive modeling, and machine learning to systematically scale revenue and optimize unit economics.

Work

Various AI Startups
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Fractional Head of Growth

Summary

Fractional Head of Growth for AI / SaaS Startups: - Lovable.dev, Shipable.io, Xavier.ai and HeronAI.com

Lovable.dev
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GROWTH ADVISOR

Summary

Spearheaded technical growth strategy and Product-Led Growth (PLG) implementation, establishing robust infrastructure for explosive revenue growth across a 6-month engagement.

Highlights

Engineered a comprehensive Product-Led Growth (PLG) pipeline, achieving $60M ARR in six months and driving 108% month-over-month growth from inception.

Architected and optimized an omni-channel digital marketing ecosystem (SEO, PPC, Paid Social, Affiliates, CRM automation), ensuring seamless, scalable customer acquisition.

Developed custom AI optimization algorithms for acquisition channels, outperforming industry benchmarks with superior CTR and conversion rates.

Architected a technical activation framework leveraging custom GPT-enhanced prompts, increasing conversion rates by 43%.

Implemented a cross-channel attribution system utilizing machine learning models, improving marketing ROI by 47%.

Monese
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VP OF GROWTH

Summary

Led growth engineering as a Senior Leadership Team (SLT) member and P&L owner, implementing technical infrastructure for scalable acquisition and revenue growth.

Highlights

Architected robust growth systems, driving a 50% year-over-year increase in customer acquisition efficiency.

Engineered a multi-channel optimization framework, reducing Customer Acquisition Cost (CAC) by 55% through algorithmic campaign management.

Implemented predictive Lifetime Value (LTV) models, improving customer lifetime value by 20% and reducing churn by 15%.

Designed technical revenue optimization systems, driving a 40% increase in first-year revenue.

Built automated user engagement infrastructure, increasing active users by 30% through behavioral triggers.

Evelyn Partners
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HEAD OF DIGITAL GROWTH

Summary

Built a multi-channel acquisition engine, significantly increasing user acquisition and optimizing digital marketing strategies.

Highlights

Built an acquisition engine, increasing user acquisition by 30% over 18 months through multi-channel integration.

Engineered advanced SEO architecture, boosting organic traffic by 25% through technical optimizations.

Designed a conversion optimization framework, increasing account sign-ups by 20% via user journey engineering.

Implemented personalization infrastructure, reducing churn rate by 10% through dynamic customer experiences.

Monese
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Head of Growth

Summary

Scaled user base from 10K to 2.5M across 31 markets and led Series A-C fundraising initiatives.

Highlights

Scaled the user base from 10,000 to 2.5 million across 31 international markets.

Led Series A-C fundraising rounds, securing essential capital for rapid expansion.

Workshare
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Head of Digital Marketing

Summary

Architected comprehensive B2B marketing infrastructure, assuming full P&L accountability.

Highlights

Architected comprehensive B2B marketing infrastructure, assuming full P&L accountability for digital marketing operations.

TransferGo
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Head of Growth

Summary

Built a viral growth engine and secured $6M in funding through technical presentations.

Highlights

Built and deployed a viral growth engine, significantly expanding user acquisition.

Secured $6M in funding through compelling technical presentations to investors.

Vrbo
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Sr. Product SEM & SEO Lead

Summary

Optimized digital assets generating over 100M monthly visits and reduced ad spend.

Highlights

Optimized digital assets, generating over 100 million monthly visits.

Reduced ad spend by £500,000 through strategic optimization and efficiency improvements.

Languages

French

Conversational

English

Fluent

Greek

Native

Italian

Conversational

Skills

Product-Led Growth Engineering

Self-Serve Conversion Architecture, Freemium-to-Paid Pipeline Optimization, Value-Based Monetization Systems, PLG Scaling Frameworks, In-Product Engagement Automation.

Technical Marketing Leadership

Full-Stack Growth Engineering, Cross-Channel Attribution Modeling, Programmatic Media Buying, Performance Marketing Infrastructure, Data-Driven Experimentation.

AI & Marketing Automation

Machine Learning Implementation, Generative AI Integration, Predictive Analytics Architecture, Marketing Automation Systems, Technical SEO Systems.

AI & Machine Learning Tools

OpenAI GPT-4, Claude 3, LangChain, Hugging Face, TensorFlow.

Growth & PLG Tools

Pendo, Appcues, ProductLed, Segment, Mixpanel.

Data & Analytics Tools

BigQuery, Snowflake, Tableau, Looker, AppsFlyer.

Development

SQL, Python, JavaScript, REST APIs, Git.

Thought Leadership

Industry Keynote Speaker, Technical Innovation Panelist, Growth Engineering Mentor, Cross-Functional Team Architect.

Interests

Travel

67 Countries Traveled.

Aviation

Licensed Pilot (In Progress).

Basketball
Padel

Awards