ANDRÉS CAMPOS

Senior Full-Stack Engineer (AI/LLM)

andres@onc9.com · linkedin.com/in/andres-l-campos · github.com/andresCamp · serdna.dev US / EU / Mexico citizen, work authorized in the US, EU, and LATAM, no sponsorship needed

Summary

Senior full-stack engineer specializing in AI products. 8 shipped applications in 2 years, all 0-to-1, all in production. 356K+ lines of TypeScript and Python. 5 LLM providers integrated in production (Anthropic, OpenAI, Gemini, Groq, xAI). Deep experience with agentic architectures, voice AI, real-time systems, and multi-tenant SaaS. B.A. English, Vanderbilt 2021.

Experience

Founding Engineer · MyStory Digital Archive

Jan 2024 – Present · mystory.bio · 192K LOC

AI-powered life story platform. Voice AI conducts documentary-style interviews, then a separate biographer agent synthesizes structured biographical content across sessions.

• Architected distributed system across 6 services (Vercel web, Cloudflare Workers auth, Fly.io API and Python voice agents) with GitHub Actions CI/CD syncing deploys, migrations, and 60+ env vars
• Built two-agent voice AI system (LiveKit + Deepgram STT + Hume TTS): real-time Interview Agent + async Biographer Agent. Solved turn-taking failures that broke the single-agent baseline
• Engineered chunked video upload pipeline to Mux with IndexedDB buffer: zero data loss across hour-long sessions, survives page refreshes and network drops
• Built Neo4j knowledge graph as the core data layer with an agentic gap-analysis system that tracks coverage across sessions and identifies narrative holes
• Integrated 5 LLM providers in production (Anthropic, OpenAI, Gemini, Groq, xAI) with prompt management and cost optimization
• Migrated GraphQL to tRPC with a real-data integration test harness to ensure exact parity, no test database
• Led 5-person dev team, managed 20+ contributors including a 15-intern summer program
• Shipped 35+ PostgreSQL tables via Drizzle, Better Auth session management, Stripe trials/subscriptions/gifts, and a 200-person organic waitlist with early revenue
• Stack: Next.js 16, React 19, TypeScript, tRPC 11 on Hono, Drizzle, PostgreSQL, Neo4j, LiveKit, Mux, Stripe

Lead Engineer · Envoy

Jan – Feb 2026 · envoy.cd · 103K LOC

Multi-tenant SaaS for embassy and consular email processing: AI classification, enrichment, and routing.

• Built per-country database isolation for data sovereignty plus per-embassy PostgreSQL Row-Level Security; embassy_id enforced server-side via JWT to eliminate URL-tampering risk
• Shipped NestJS + Next.js stack on Fly.io and Vultr with 50+ tRPC procedures and 40 database models
• Integrated 3 email providers (Gmail, Outlook, Resend) and 3 LLM providers (OpenAI, Gemini, Mistral)
• Inngest orchestration for email sync and async AI processing
• Hexagonal architecture with config-driven adapters (LLM, database, email) selected per-country deployment
• Built from a 1-hour recorded discovery conversation with embassy staff; secured ambassador buy-in for the Mexican embassy pilot, awaiting formal government approval

Lead Engineer · DeepMesh and Feast.wtf

Feb 2026 · deepmesh.io, feast.wtf

WhatsApp AI research platform. AI agents conduct conversational research via WhatsApp; consumer brand pays students with free food for voice notes.

• 4th place out of 60+ teams at Compiled hackathon (Abu Dhabi, 150+ attendees). $800 prize plus YC partner office hours
• Next.js frontend on Vercel + FastAPI backend on Fly.io + PydanticAI agent on Google Gemini 2.5 Flash
• Twilio WhatsApp integration with multi-mode agent architecture (onboarding, bounty, campaign, general)
• Shared Neon PostgreSQL, Doppler secrets, GitHub Actions CI/CD across 4-person team
• Led vision, deployment, and demo polish; YC partner feedback: “start discovery calls immediately”

Lead Engineer · InitialCommit

Jan – Feb 2026 · initialcommit.ae · 35K LOC

Community platform for builders in Abu Dhabi: weekly events, sponsor CRM, hackathon registration.

• 4-app Turborepo monorepo (www, admin, hackathon registration, event pages)
• Polymorphic event system supporting Builder’s Nights, Midnight Oil, Outings
• Sponsor CRM with Kanban pipeline and weighted forecasting
• Cloudflare R2 image pipeline with TinyPNG compression
• Outcome: 20 organic members, 100% repeat attendance, 200-person flagship event scaled before regional displacement

Lead Engineer · Rotating Power Technologies (RPT)

Dec 2025 – Jan 2026 · solo, 5 weeks

Bilingual EN/AR marketing site for a gas and steam turbine engineering consultancy targeting the GCC market.

• Astro 5 + React islands with custom zero-dependency i18n (252 translation strings)
• Full RTL Arabic support with privacy-first geo region detection (Saudi visitors see local lab content)
• Discovery-first: full spec built from a 90-minute recorded conversation with the founder
• Client feedback: “Blown away.” Circulated to peers, generated referral pipeline

Lead Engineer · Schroff Boards

Mar – Jun 2025 · 15.7K LOC

E-commerce site for a legacy surfboard brand.

• Next.js 15 + Payload CMS 3.31, Stripe checkout, Vercel Blob image storage
• AI-assisted product photo cleanup (background removal, reframing) for non-technical client workflow
• Admin panel built for a non-technical client to manage inventory, orders, and content
• Client feedback: “You totally nailed this.”

Lead Engineer · Art Direct

2026 · artdirect.dev · shipped in a day

Visual responsive image art direction tool. Astro 6 + Svelte 5 + Tailwind class generator.

Earlier

Founder · Arboreum (2022 – 2023). Carbon offset platform for mass timber construction. Secured CEO-level partnerships with a top Canadian producer and leading carbon-offset providers; represented at Verge + Greenbuild SF. Wound down after the industry LCA standard shifted from 45 to 100 years and unit economics became non-viable.

Instructor · Fullstack Founder (2023). Designed and led a 12-week web development curriculum with demo day; weekly lectures, 1:1 mentorship, Notion LMS.

Web Developer · Estudio Jorge Campos (2023). Next.js 14 + Contentful CMS rebuild for an architecture firm in Mexico City. Interviewed 15 employees and delivered a business intelligence report on workflows.

Education

Vanderbilt University · B.A. English, Business minor, 2021. Core CS coursework.

Skills

Languages: TypeScript, Python, JavaScript, Swift Frontend: React, Next.js (App Router), Astro, Svelte, Tailwind CSS, Framer Motion, Jotai Backend: Node.js, tRPC, NestJS, Hono, Fastify, FastAPI, Prisma, Drizzle AI / LLM: Anthropic, OpenAI, Gemini, Groq, xAI, Mistral, LiveKit, PydanticAI, Vercel AI SDK; agent architectures, RAG, voice AI, prompt engineering, real-time turn-taking Databases: PostgreSQL (Neon), Neo4j, Redis, pgvector Infrastructure: Vercel, Fly.io, Cloudflare Workers, Cloudflare R2, AWS, Vultr Workflows / Comms / Payments: Inngest, Stripe, Twilio (WhatsApp + SMS), Resend, Mux CMS / Auth: Payload CMS, Contentful, Better Auth Tooling: Git, Turborepo, GitHub Actions, Docker, Doppler, Bun