I’m Eftihia Nitsou, a highly organized and results-driven professional with a strong background in executive assistance, customer support, sales coordination, and project management. Fluent in both Greek and English and holding a degree in English Literature, I specialize in streamlining communication, managing day-to-day operations, and supporting cross-functional teams in fast-paced environments. My experience includes overseeing administrative workflows, coordinating projects across departments, and ensuring deadlines and deliverables are met with precision. Proficient in tools like WordPress, Canva, and webinar platforms, I combine operational efficiency with a creative mindset. I’m committed to delivering high-quality support, optimizing team productivity, and contributing to the smooth execution of business objectives.More...
Demetri Tsirlis
CEO & Co-Founder@wappier
Verified
Growth-focused Business & Product Operations Executive with 15+ years scaling SaaS and
software services companies. As Co-Founder & CEO of wappier, grew ARR from $500K to
$5M and led the evolution from services delivery to a six-product SaaS platform trusted by
global publishers like 2K Games and Scopely. Experienced in building and leading
distributed teams while driving Product Ops, RevOps, FinOps, HR, and customer success.
Dual US/GR citizen, now seeking to help a growth-stage business scale its operations and
product ecosystem to the next level.More...
Thanos Eleftherakos
Founder@Bracket
Verified
With over 15 years of experience in web development, I specialize in building custom, scalable solutions across a range of technologies. I’m the founder and lead developer at Bracket, a boutique web development studio based in Greece, and currently serve as CTO in three startups, driving product development and technical strategy.
My foundation in Electrical Engineering and lifelong curiosity for how things work have fueled a career shaped by hands-on experimentation, clean architecture, and adaptability. As a self-employed developer, I’ve collaborated with IT consultancies, software firms, agencies, and in-house teams to deliver tailored, high-performance applications.
Outside of client work, I actively explore emerging technologies and develop side projects to stay ahead of industry trends and continuously evolve my skill set.More...
Anna Oner
Lawyer
Verified
With 20+ years of experience in corporate law, contract negotiation, and business structuring, I help entrepreneurs, startups, and multinational businesses navigate complex legal landscapes with confidence.More...
Demetri Tsirlis
CEO@wappier
Verified
Demetri Tsirlis is a seasoned business executive who currently holds the position of CEO at Wappier, a leading company providing Revenue Optimization solutions to mobile game developers.
With a strong background in product development, customer strategy, and operations, Demetri has a proven track record of driving growth and innovation in the tech industry.
As a leader, Demetri is known for his strategic thinking, strong problem-solving capabilities, and exceptional ability to lead teams towards achieving their goals. His experience, coupled with his passion for technology, makes him a pioneering figure in the industry.More...
Kostas Papafragos
Kostas@Kostas
Verified
Kostas Papafragos, the driving force behind Kostas company, has successfully led the organization with his strategic vision and leadership skills. Under his stewardship, the company has consistently achieved its business objectives and has established a strong market presence. His focus on innovation, customer satisfaction, and operational efficiency has been instrumental in the company's growth and profitability. As a respected industry leader, Kostas continues to inspire his team to strive for excellence and deliver high-quality products/services to its clients. His leadership style fosters a positive work culture that encourages creativity, teamwork, and continuous learning.More...