Looking for a job

Alex Taberoa

@alextaberoa

Software Engineer at Outbuild building AI agents for construction scheduling, with approval safeguards and evaluation gates.

Mexico

Message

What I'm looking for

I'm looking for senior, product, or founding engineer roles at product companies, working remotely across LATAM with full overlap with US hours.

At Outbuild, I owned end-to-end features for a construction-scheduling SaaS, including AI workflows that propose task changes for review instead of overwriting data. I designed CoBuilder workflows with permission checks and proposal history, and defined LangSmith evaluation gates for grounding, routing, tool selection, latency, and token cost.

I also closed a multi-tenant security gap across nine core tables, helping unblock a $17K enterprise contract that was later renewed at $51K over three years. Before Outbuild, I worked on full-stack products and integrations at Loft México, Fracttal, Ambit Technology, and Comermix.

Experience

Work history, roles, and key accomplishments

Software Engineer

Outbuild

Sep 2022 - Sep 2026 (4 years)

Owned features end to end for a construction-scheduling SaaS across Python, Node.js and React: AI agents, backend authorization, enterprise integrations and observability. Developer of the Year 2023 and 2024. Merged 580+ PRs and gave 430+ code reviews to 20 engineers.

• Built the AI Lookahead Task Pre-Fill flow: grounded retrieval, typed task proposals, role and organization checks, and explicit

Semi Senior Full stack Developer

Loft México

May 2022 - Jul 2022 (2 months)

• Added Django REST endpoints, PostgreSQL migrations and React integration across 50+ components for a full-stack rebranding initiative.
• Implemented MessageBird SMS and WhatsApp webhooks with Celery and Redis queueing, reducing notification costs by 25%; reduced Docker build time from 10 minutes to 2 minutes.

Frontend Developer

Fracttal

Dec 2021 - Apr 2022 (4 months)

• Developed a React and TypeScript API testing portal used by 20+ internal developers, reducing API debugging time by 30%.
• Built and published the fracttalcore component library as a private NPM package adopted by 3+ teams, reducing duplicate UI code by 40%.
• Improved frontend performance, internationalization, Storybook coverage and Webpack bundle size through reusable hooks, lazy loading, cod

Full stack developer

Ambit Technology

May 2021 - Nov 2021 (6 months)

• Improved an ERP integration using REST APIs and message queues, reducing data-entry errors from 15% to 3%.
• Built Python automation on AWS Lambda for 10,000+ daily records, reducing batch processing time by five hours through parallel execution.
• Built a React and Node.js MVP informed by user research, increasing retention by 15%.