Agustín Vivancos

Immigration tech · Global mobility · Legal-tech · migro.es

A platform built to support people migrating to Spain end-to-end: eligibility test, mobile app, paperwork management, voice intake and a live CRM. Built end-to-end by me.

• Async FastAPI + Postgres + SQLAlchemy serving the CRM and the mobile-app contracts
• Live CRM: 8,000+ contacts and 400+ closed deals — leads, calls, paperwork, contracts and billing
• React Native / Expo mobile app: eligibility test, Pili chat, paperwork tracker, Pro subscription
• 11 agents in production (LangChain + FastMCP): legal research, case mgmt, paid acquisition, voice analysis, creative production, compliance, document processing, governance
• Voice-LLM-assisted call-center (ElevenLabs + Telnyx): 15-minute calls → structured CRM records, automatically
• Real CPL via Meta CAPI + fatigue analysis + market-gap detection (not declared CPL)

AI-first studio · Full-time · Remote (US-based)

A studio operated by a fleet of AI agents — not humans assisted by AI. I deliver software, growth and consulting using the same stack proven inside Migro.

• Web development: Next.js · TypeScript · Tailwind · React Native
• AI automation: Python · FastAPI · OpenAI · Anthropic · MCP
• Growth marketing: Meta Ads API · CAPI · funnel analytics
• Custom AI agents: onboarding, support, internal ops, sales workflows
• Two landings in production — impulsa.me + pilinet.com — behind a shared Caddy reverse proxy in a single Render container. Full-stack ownership: from infra to copy

Independent contractor · Remote

• Fractional CTO — 10–20 h/week, 6–12 months. AI and backend roadmap, team coaching, the hard parts shipped by me. For seed/Series-A founders without a technical co-founder, or post-Series-A teams between CTOs
• Python API & Full-Stack Specialist — 30–40 h/week, scoped end-to-end delivery. Backend: FastAPI, LangChain/FastMCP, voice-AI, RAG over private corpora, fine-tuning. Frontend: Next.js · TypeScript · Tailwind and React Native / Expo mobile on top of the same contracts. Plus the boring multi-tenant plumbing — audit trail, cost ceilings, kill switch — that keeps serious systems safe in production

Salamanca, Spain · Hybrid · 6 years

A network of tourism websites in Salamanca plus a boutique hotel and short-stay apartments: SEO, content, booking funnels and physical ops, combined.

• Web properties with SEO and content driving qualified traffic to offline assets
• Hotel and apartment operations: pricing, channel mgmt, guest experience
• Full P&L of the business for 6 years
• Run in parallel with my Uber LATAM engagement — proof of operating a real business with real cash flow

Lima, Peru · On-site · 3 years 5 months

On the LATAM expansion team during the regional rollout. Focus: driver acquisition and early-stage marketing for new markets — bringing supply on before demand was validated.

• Driver-acquisition strategy for city and corridor launches
• Local acquisition campaigns for drivers and fleet partners
• Onboarding flows from first contact to activation
• Cross-functional coordination across operations, marketing and local expansion
• ES · EN · PT delivery across LATAM environments

Spanish meal-kit · Founding-stage CTO · Full-time

• First iteration of the e-commerce, subscription engine and order pipeline
• Recipe-content workflows and integrations with kitchen and logistics
• Operational dashboards and cohort / retention analytics
• Technical hiring and ramp-up of the engineering team
• Outcome: shipped the technical foundation BuyFresco scaled on for 4 years, all the way to the Carrefour exit in 2019

Salamanca, Spain · My first company, founded at 22 · 3 years 6 months

Digital consultancy delivering web, software and integrations for enterprise and SME clients.

• Led a team of 15 across engineering, design and account management
• Enterprise clients: BBVA · Banco Santander · Inditex
• 90+ SMEs across retail, services and B2B
• Delivery end-to-end: discovery, design, build, ship, maintain
• Outcome: learned to sell to enterprise procurement and to SME founders in the same week — a discipline that now anchors every Fractional CTO engagement I take

Organic and bio brand · Madrid · 1 year

• Tech strategy and digital transformation for an established brand moving to D2C
• Online store, order pipeline and operational integrations: catalog, fulfilment, billing
• Internal tooling for the day-to-day team