Antonio Russo

CTO, Tech Founder, 15y+ Engineering & Technical Leadership

Lisbon, Lisbon, Portugal

About

As an experienced software engineer and tech leader, I am passionate about driving transformative change. With over a decade of relentless pursuit of excellence, I have fostered a culture of continuous learning and growth, empowering junior and mid-level developers to thrive and reach senior positions. Throughout my career, I have gained expertise in a wide range of web technologies and frameworks. This depth of knowledge has allowed me to lead the architecture and development of complex, enterprise-level web platforms, ensuring a seamless user experience across the web media and devices. Beyond technical skills, I champion best practices by implementing effective code testing methodologies and clear documentation procedures. My full-stack software engineer experience enables me to bridge the gap between front-end and back-end development as well as product and development teams, fostering a collaborative environment. I am excited to connect and innovate together. Let's discuss how we can leverage my expertise to drive your project forward.

Experience

  • ContentX Labs (United States · Remote)
    • Chief Technology Officer
      Mar 2026 - Present · 4 mos

      ContentX Labs is a licensed data marketplace for AI training - connecting content owners who want to monetise their data and content libraries with AI labs and enterprises that need rights-cleared, ethically sourced datasets at scale. Having built the technical foundation of the platform as Founding Tech Lead, I stepped into the CTO role to take ownership of the broader strategic direction - shifting focus from how we build to what we build and why. I work closely with the founding team and investors to align the technical roadmap with business priorities, communicate architectural decisions in terms of risk and opportunity, and make sure engineering capacity is deployed where it creates the most leverage for growth. Day-to-day this means owning the product-technology strategy across both sides of the marketplace, guiding the team on prioritisation, and representing the technical vision in investor conversations - translating complex infrastructure challenges into a clear narrative about where the platform is going and what it will take to scale.

    • Founding Technical Lead
      Jun 2024 - Mar 2026 · 1 yr 10 mos

      ContentX Labs is a licensed data marketplace for AI training - connecting content owners who want to monetise their data and content libraries with AI labs and enterprises that need rights-cleared, ethically sourced datasets at scale. As Founding Technical Lead, I owned the technical direction of the product from day one: architecture, stack decisions, engineering culture, and delivery. I operated hands-on as both architect and builder while leading the engineering team through the ambiguity of an early-stage, two-sided marketplace. On the technical side, I designed and built a microservices-based platform using Python on the backend, React/Next.js on the frontend, AWS Lambda and PostgreSQL as the core data and compute layer, and Terraform to manage all infrastructure as code - built to handle structured media ingestion, rights metadata, and dataset delivery at scale. On the leadership side, I hired and mentored engineers, ran sprint cycles, managed external vendors and contractors, and kept the team shipping consistently in a fast-moving environment.

  • Founder, CTO at Effortless Technologies
    Mar 2024 - Present · 2 yrs 4 mos

    Effortless Technologies is an AI-development and automation company built on a simple premise: tech consultancy has been broken for too long. Overpriced promises, vague roadmaps, missed deadlines. We built something better. We work with businesses to design and ship automated intelligence, built to actually solve problems and save time, not to generate reports. As co-founder and CTO, I'm responsible for the technical vision, the service architecture, and making sure every project we take on gets delivered with the rigour and honesty that our firm is built on. I work across the full stack of what we offer: from scoping and architecture through to delivery and iteration.

  • Front-end Tech lead (WEB3 Group) at MoonPay
    Mar 2023 - Mar 2024 · 1 yr 1 mo

    - Led and mentored a high-performing front-end team, fostering a growth-oriented environment - Established best practices for code testing, documentation, and team procedures

  • Software Engineer, Team leader at Yumpingo
    Jul 2021 - Mar 2023 · 1 yr 9 mos

  • Co-founder, Software Engineer (exit in May 2021) at Beautiful Interactions
    Jan 2017 - May 2021 · 4 yrs 5 mos

    - Co-founded the company, demonstrating initiative and entrepreneurial spirit. - Applied full-stack development skills to build and launch a successful software product - Tutored teammates to grow in their role from junior or mid and from mid to senior via internal projects, customer projects, and open source projects