SigmaFlowAI is a founder-led AI automation and engineering agency based in Portugal, working remotely with clients worldwide in English, Portuguese, and Spanish.
SigmaFlowAI is run by Ricardo Fernandez, a software engineer and architect. Founder-led is not a limitation here, it is the design: the person who scopes your system is the person who builds it, ships it, and maintains it. No handoffs, no account managers, no telephone game.
We hold every project to one standard: systems that run in production, not demos. Today that means 10+ AI and automation systems running daily, for our own operation and for client businesses. We operate the same kind of systems we sell, on our own business first, every single day.
One of them is an AI voice receptionist that has been answering real calls for a childcare business since March 2026: about 30 calls a month, around the clock, booking appointments and saving the team an estimated 12 to 15 staff-hours every week. Another is a conversational tax assistant deployed to both app stores.
Counted from our own running inventory and client systems. If we can't verify a number, we don't publish it.
Voice agents that answer real calls, internal process automation, CRM integrations, and websites wired to automation backends. Built with the stack we run ourselves.
Animations, short-form video, and image or video campaign assets for brands: an AI-first production toolchain with human creative direction.
A system counts when it runs every day without us babysitting it. That is the bar, and it is why our proof is systems in use, not mockups.
No invented metrics, no fabricated testimonials. If a number appears on this site, the founder validated it and we can explain where it comes from.
AI systems degrade without an owner. We stay on as the engineering side of your operation, which is also how white-label partnerships with other agencies work here.
Outside the terminal: jazz piano. Ask about chord voicings at your own risk.
Start with the free AI diagnostic. It takes a few minutes and gives you a concrete, honest read.