Meet Your Team

No Gurus. Just People Who Get Results.

Julie O'Donnell
Julie O'DonnellCo-Founder & CEO
Lead strategist at One15. Over a decade’s experience in marketing and communications. Mentor to start-up businesses across sectors with particular experience in digital health.
Dave Albert
Dave AlbertCo-Founder & CTO
Lead technologist at One15. Developing engaging digital solutions – websites, e-commerce platforms, applications, games – for almost two decades.
Koen Rutten
Koen RuttenLead Data Specialist
Expert in research methodology and design (Ph.D, LSE 2014). Has experience as developer and PM at major IT company. Combines expertise in data analysis with a solid background in social science and business research to provide grounded and actionable results.
Syed Saleem
Syed SaleemDigital Marketing Specialist
With a background in product development and market research in major IT companies, combined with expertise in Digital Marketing and web analytics, Saleem works across products and services to drive customer engagement.
Denitsa Atanasova
Denitsa AtanasovaDeveloper Intern
Awarded an Honours Degree in a Higher Diploma in Web Technologies, Denitsa brings creativity and support into the development of One15’s projects.

Meet Your Team

No Gurus. Just People Who Get Results.

Julie O'Donnell
Julie O'DonnellCo-Founder & CEO
Lead strategist at One15. Over a decade’s experience in marketing and communications. Mentor to start-up businesses across sectors with particular experience in digital health.
Dave Albert
Dave AlbertCo-Founder & CTO
Lead technologist at One15. Developing engaging digital solutions – websites, e-commerce platforms, applications, games – for almost two decades.
Koen Rutten
Koen RuttenLead Data Specialist
Expert in research methodology and design (Ph.D, LSE 2014). Has experience as developer and PM at major IT company. Combines expertise in data analysis with a solid background in social science and business research to provide grounded and actionable results.
Syed Saleem
Syed SaleemDigital Marketing Specialist
With a background in product development and market research in major IT companies, combined with expertise in Digital Marketing and web analytics, Saleem works across products and services to drive customer engagement.
Denitsa Atanasova
Denitsa AtanasovaDeveloper Intern
Awarded an Honours Degree in a Higher Diploma in Web Technologies, Denitsa brings creativity and support into the development of One15’s projects.