I'm Julien REO

About me

I am a trilingual professional (French native, fluent in English and Spanish) with a background spanning international business development and backend engineering, shaped by working and living across Europe, Latin America, and Australia.

I began my career in international business after a Master’s degree in the field, spending nearly a decade building and scaling operations across multiple markets. I led market entries from Europe into Spain, France, and Latin America, working across digital marketing, partnerships, client acquisition, and performance analysis. This experience gave me a strong understanding of how products scale internationally, both from a business and operational perspective.

Over time, I transitioned into software development, a field I had initially explored independently before committing to it professionally. I have since worked across several industries, including advertising, digital marketing, sports, and video platforms, with a strong focus on backend systems. I naturally progressed into Lead Developer roles, owning backend architecture, large-scale migrations, and platform reliability, while mentoring developers and maintaining high engineering standards.

Alongside backend development, I built solid DevOps expertise, designing cloud infrastructures and implementing CI/CD pipelines. This allows me to approach systems with a holistic view, from design and development to production, security, and operations.

I’m driven by building robust, scalable systems, continuously learning, and working with teams that value technical quality, ownership, and long-term impact.