SELECTED WORK

Shipped, used, measured.

Voice agents, AI storefronts, platforms and community events, each one in front of real users.

LIVE AT THE EVENT
Angel at the Huella Digital stand during Conexión InteligenteTHE STAND
Angel with a guest at the SETI stand during Conexión InteligenteCONEXIÓN INTELIGENTE
VOICE AI · EVENTSETI × Corficolombiana

Huella Digital

An AI experience that lets people explore their own digital profile, built on the AI and frontend side with LiveKit, LangGraph and CopilotKit on AWS.

Result · Used live by leaders and executives at Corficolombiana’s Conexión Inteligente forum.
LiveKitLangGraphCopilotKitAWSNext.js
Read the case study →
AI E-COMMERCEQSmiley · Australia

A Shopify store with a built-in AI sales assistant

Designed and built the full custom Shopify storefront and integrated an AI assistant that answers pre-purchase questions and guides shoppers to the right product.

ShopifyAI assistantFrontend
Visit qsmiley.com.au →
The School of Breath app home screen with daily breathing, courses, meditation, sleep music and mantras
The School of Breath
@TheSchoolofBreath · 175K subscribers
VOICE AI · WELLNESSThe School of Breath

A real-time voice agent that guides breathwork

A voice agent that talks users through breathwork and meditation in real time, backed by Node.js and Python services.

Result · 2,000+ active users within three months of launch; 10,000+ monthly requests.
Voice AINode.jsPythonReact Native
See the app →
PLATFORMPalenke · PCN

Digital infrastructure for Afro-Colombian self-governance

A Next.js and NestJS platform for territorial memory, community governance, advocacy and a searchable knowledge library, with a geoportal for the Colombian Pacific.

Next.jsNestJSGeoportal
Visit palenke.org →
AI After Hours event poster for October 22AI AFTER HOURS
A speaker on the mic during a Visible Builders talkON STAGE
EVENTS · COMMUNITYVisible Builders · Medellín

AI After Hours, with an AI host in the room

A monthly AI talk night plus the tech behind it: QR check-in, Noshy (a voice host that matches attendees by answering three questions out loud) and icebreaker challenge cards.

Result · 129 builders registered and 12 speakers and demos on stage.
LiveKitNext.jsPostgreSQLVoice AI
See the event →
EXPERIENCE

Hiring? Here’s the short version.

Tech Lead, consultant and hands-on engineer across AI, frontend and full-stack work.

View full CVDownload PDF
2026
AI Expert & Frontend Engineer · SETI
Voice agents and AI experiences with LiveKit, LangGraph, CopilotKit and AWS.
2025 – 2026
Full-stack & AI Developer · The School of Breath
Real-time breathwork voice agent; 2,000+ active users in 3 months.
2025
Full-stack Developer & Tech Lead · Academia del Estratega
Agent-driven lead platform; +35% qualified leads.
Freelance
E-commerce & AI Developer · QSmiley
Custom Shopify storefront for an Australian family-wellness brand, with an AI shopping assistant.
Freelance
Full-stack Developer · Palenke · PCN
palenke.org on Next.js and NestJS, with the SIG-A geoportal for the Colombian Pacific.
2024 – 2025
Full-stack & AI Agent Developer · Meditate With Abhi
Sleep and mindfulness platform; 1,000+ active users in its first quarter, sub-200 ms median responses.
2022 – 2024
Frontend & Lead Developer · ISA Company
Engineering calculation tool; CI/CD from 2 hours to under 20 minutes.
2019 – 2022
Early experience · Startupslab, University of Córdoba, Mipiggybag Ita
Web, research data tools and first product launches.

Want results like these for your company?

Reply within 24 hours · English & Spanish · Colombia time (UTC−5)

Book a 20-min callangelarrieta34@gmail.com