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Ulises Rosas - cover
Ulises Rosas

Ulises Rosas

Full-Stack Developer & AI Automation Engineer
📍 Ciudad Obregón, Mexico · (0) · Member since
Availability
🏠 Works remotely / from home Yes No
🧰 Travels to client Yes No
⚡

Presentation

I've built production software for over 10 years, and for the last six I've been CTO at Sahuaro Labs, leading a team of up to 15 engineers and designers. We've shipped web apps, mobile apps and AI-powered SaaS for 12 B2B clients, from kickoff to launch.

What I can build for you:
- Web apps and dashboards (React, Next.js, Vue, Node.js)
- iOS and Android apps (React Native, Swift, native Android)
- AI agents and chatbots connected to your own data (OpenAI API, RAG)
- Voice agents that answer calls, book appointments and handle routine support
- n8n automations that remove repetitive manual work
- AI features added to a product you already have

You talk directly to the person writing the code. I've also run the product side for years, so I'll tell you if a feature isn't worth building, and I'll say upfront if something is outside what I do well.

How I work: a short call or message to understand the problem, a written scope with timeline and price, regular updates with working demos, and at the end, documented code that you own.

I work in English and Spanish, and I'm based in Mexico, so my hours overlap with US time zones.

Send me a message describing what you want to build. If it's a good fit, I'll reply with a rough plan and estimate.
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Background

Chief Technology Officer
Sahuaro Labs LLC · 01/01/2020 – Today
• Led the engineering organization up to 15 professionals across engineering and design and owned
end-to-end product delivery of Web, Mobile and most recently AI-powered SaaS products (AI
agents, Voice Agents and Workflow Automations) for 12 B2B clients across multiple industries,
from product roadmap and requirements gathering to production release.
• Owned the product and technical roadmap in partnership with business stakeholders, leading
backlog prioritization, scope definition, and trade-off decisions to translate business requirements
into scalable architecture.
• Up-skilled the team in AI/ML integration, cloud deployments, and modern full-stack development,
fostering a culture of continuous improvement and ownership.
Team Leader
Sahuaro Labs LLC · 01/05/2018 – 31/12/2019
• Translating business requirements into technical tasks, reporting status to stakeholders, and
facilitating collaboration across teams.
• Defining the technical direction, setting coding standards, managing technical debt, and making
high-level architectural decisions.
• Mentoring junior developers, conducting performance reviews, facilitating onboarding, and
fostering a positive team culture.
Software Engineer
Sahuaro Labs LLC · 27/05/2015 – 30/04/2018
• Owned end-to-end development of 1 web app and 3 mobile apps, from requirements and
architecture through implementation, testing, and production deployment, serving ~200 active
users.
• Built a reusable Android SDK for location and connectivity services, standardizing BLE and cutting
integration time for downstream product teams.
• Implemented BLE beacon technology and engineering standards (code reviews, CI/CD, coding
guidelines), improving release quality and consistency across projects.
B.S. Software Engineering
Sonora Institute of Technology · 2011 – 2015
🇬🇧English 🇪🇸Spanish
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Working hours

Monday
From08h00To18h00
Tuesday
From08h00To18h00
Wednesday
From08h00To18h00
Thursday ▪ Today
From08h00To18h00
Friday
From08h00To18h00
Saturday
Closed
Sunday
Closed
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