About Christos
English
Fluent
Greek
Native or bilingual
Experience
- CIM Business SchoolAI Product ManagerEDUCATION AND E-LEARNINGAugust 2025 - November 2025 (3 months)I work with CIM Courses and Mobi Academy on a contract basis to turn their ideas into reality using AI-first workflows. By collaborating closely with both teams, I help them launch educational projects that were previously out of reach due to resource or cost constraints. We validate content and product hypotheses quickly to uncover growth opportunities.In this initiative, I acted as the AI Project Manager responsible for:
- Designing and optimising the end-to-end production pipeline, integrating ChatGPT, n8n, and Google Suite.
- Coordinating between the platform, the university, and the video production team to keep requirements aligned and deliverables on track
- Monitoring prompt performance, automation costs, and quality, improving the accuracy and efficiency of each weekly cycle
ResultI enabled a university to build a full digital presence and produce 60+ micro-courses per month through an AI-powered content workflow — significantly increasing output without adding headcount.I remain open to project-based roles where AI can unlock new value, accelerate delivery, or improve efficiency. - Rebtel (Backed by Index ventures)Product ManagerAugust 2022 - Today (3 years and 10 months)Stockholm, Sweden• Led an organisational transformation towards cross-functional teams, streamlining communication and accelerating development cycles by 30%.• Owned the product roadmap for the company's Services (International Calling, International Numbers, Mobile Top-ups, Money Transfer), balancing growth initiatives with core service maintenance to ensure continuous improvement and reliability.• Introduced the concept of bundled product subscriptions (plans), increasing user retention by 30% while decreasing the payback time to 12 months.• Implemented AI-driven automation for thousands of product descriptions and hundreds of daily campaigns, boosting efficiency and achieving a 10% uplift in Conversion Rate.• Spearheaded user research and led the end-to-end product development of a flagship service, tailoring the experience to resonate with user needs.• Designed a strategically designed referral program that increased user acquisition and boosted monthly active users by 4%.• Launched a cash-pickup money transfer feature and optimized the transfer UX journey across 120 destinations, resulting in an 8% increase in transfers and a 20% increase in conversion rates across key markets.
- Accusonus (Acquired by Meta)Product Manager & Growth LeadApril 2019 - March 2022 (2 years and 11 months)Athens, Greece• Hired as Employee #10 to bridge the gap between technology and business, leveraging company innovations to create consumer-facing products that drove business growth. Successfully productized technologies, contributing to a 3x increase in annual revenue.• Led a strategic growth initiative, collaborating with founders and department heads (WebApps, Mobile, Plugins, eCommerce) to analyze customer data and create a long-term growth roadmap.• Built and managed a cross-functional team of five (Web, UX, Ops, Bl engineers) to support growth objectives, achieving a 5% monthly revenue increase through continuous experimentation.• Drove substantial improvements to onboarding and payment experiences, including in-product checkout, early demo exposure, and pricing comparison sections, resulting in subscription increases of 18%, 13%, and 6%, respectively.• Enhanced team development processes, tripling experiment throughout from 3 to 9 per month, and revamped the checkout process, leading to an 18% increase in desktop and 80% increase in mobile transactions.• Established new functions to align business objectives, scaling CRM, Content, PR, and PPC channels to 3x paid user growth; led MarTech transition to subscription model, achieving a 20% revenue uplift through CRM and automation
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Education
- MEng in Electrical and Electronic EngineeringUniversity of Edinburgh2013MEng in Electrical and Electronic Engineering
- Business AnalyticsUNIVERSITY of CAMBRIDGEonline cores