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Résumé · Contract profile

Senior AI Product Engineer · React Native & Full-Stack TypeScript

Production AI, React Native depth, and the full-stack range to own delivery from architecture through release.

Production AI on CloudflareReact Native depthEnd-to-end product ownershipFull 9–5 ET overlap

Contract positioning

AI, shipped inside real products.

Senior AI Product Engineer and full-stack TypeScript engineer with 20+ years of software experience and 6+ years shipping React Native products. I build production AI systems — multi-model routing, structured LLM output, and human-in-the-loop review — across React Native, Next.js, Node, tRPC, and Cloudflare. I can architect, develop and ship whole products solo, including a 62-screen marketplace and its edge backend, for clients across the US, the UK, Spain, Sweden, Venezuela, and Cyprus, with full US Eastern-hours overlap (9–5 ET) from Cyprus.

Cyprus (EU) · Full US Eastern-hours overlap (9–5 ET)
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Selected contract experience

Prioritized around the AI, mobile, full-stack, and international delivery evidence that matters to contract clients.

Founder / Senior AI & Full-Stack Engineer

Wandity Ltd

2022 - Present

My EU company for product development and contract engineering with international clients, including engagements in Spain and CybaVerse (UK).

  • Agorani: Workers AI vision, translation, and moderation pipelines inside a 62-screen React Native and Expo marketplace, built solo including its Hono and tRPC Cloudflare backend, Durable Objects chat, and D1 data model — 1,100+ commits, with a 9-suite Maestro E2E harness covering 70+ native flows
  • Abrila/Fabrilamp (Jun 2024 - Feb 2026): led engineering across a Next.js B2B platform with a 55-table server-side catalog mirror and a separate offline-first React Native iPad app for 5,000+ products
  • Walking Tour Guides: shipped a self-guided React Native and Expo travel app that is live on the App Store with GPS routes, picture galleries, RevenueCat purchases, and content for 20+ cities
  • CybaVerse (Aug - Nov 2024): contracted through Founder & Lightning on a UK cybersecurity compliance SaaS using Next.js, tRPC, Hasura, PostgreSQL, and SSO

Senior Full-Stack Software Engineer

Cartes Ltd.

Jul 2018 - Nov 2023

My previous company for international web and mobile client work with Team Gearflow (US), Capply (Sweden), and Kukd.com (UK).

  • Kukd.com: led mobile engineering for its Expo and React Native ordering app, contributing 882 of 1,724 commits and delivering payments, live order tracking, and a Next.js white-label ordering platform
  • Team Gearflow: contributed 368 of 1,081 main-branch commits to a production platform with two Remix apps, a 44-entity Prisma domain, and Go services for supplier and industrial-printer integrations
  • Capply: helped build a Remix logistics marketplace with a 27-model Prisma domain, Auth0, Kafka-based HubSpot synchronization, and CI-enforced unit, acceptance, and visual tests

Full chronology

Earlier career

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Senior Full-Stack Software Engineer

Kukd.com

2020 - 2022

Contract via Cartes Ltd. (own company) · Cardiff, Wales, UK · Hybrid

Led mobile engineering for Kukd.com's food-ordering product and contributed across its Node.js API, Next.js platform, and restaurant white-label sites.

  • Built the React Native ordering app with payments, authentication, cart flows, and live order status
  • Integrated Checkout.com and implemented Socket.io updates with a resilient polling fallback
  • Worked directly with product, design, engineers, and stakeholders across discovery, delivery, and release

Software Engineer / Business Development

Teist Soluciones S.L.

Dec 2013 - Jul 2021

Full-time · Madrid, Spain

Co-founded a food manufacturing and distribution company serving Europe and the Americas, combining software delivery with commercial and operational leadership.

  • Built ERP, pricing, manufacturing, logistics, e-commerce, and company web systems
  • Expanded the business into the European market and reduced operating costs by roughly 70%

Director of Operations

Ingredientes Trading 71 C.A.

Jul 2013 - Jun 2020

Operations & technology · concurrent with Teist Soluciones · Caracas, Venezuela

Restructured financial and operational processes through a severe market crisis while modernizing manufacturing, logistics, and customer-facing systems, run in parallel with the group's European arm at Teist Soluciones.

  • Implemented Odoo and Dolibarr ERP solutions for manufacturing traceability and logistics
  • Built responsive WordPress websites and improved search visibility

Web Developer

Independent / Freelance

2005 - 2018

Freelance · Spain & Venezuela

Built and maintained websites, e-commerce stores, API integrations, CRM and ERP connections, SEO improvements, and system migrations for small and medium-sized businesses.

Junior Full-Stack Web Developer

Informa D&B

Oct 2012 - May 2013

Part-time · Madrid, Spain

Developed and improved high-traffic web applications using JavaScript, jQuery, XSLT, XML, Java, HTML, and CSS, including marketing experiments and UI/UX work.

Apple Specialist

Apple

2010 - 2011

Retail & technical support · Madrid, Spain

Delivered customer-facing technical support, product demonstrations, sales, and visual merchandising as part of the launch team for Apple Store Xanadú, one of Apple's first two stores in Spain.

Education

MSc in Computer Science

Autonomous University of Madrid (UAM)

Madrid, Spain

BSc in Computer Science

Autonomous University of Madrid (UAM)

Madrid, Spain

Computer Science · Erasmus scholarship

Roma Tre University

Rome, Italy · 2011 - 2012

Skills

AI

Anthropic Messages API (tool use, structured outputs, streaming)Claude Agent SDK (tool orchestration, structured output)Multi-model routing, confidence gating, and cost/latency tieringContext construction for LLM callsVercel AI SDKCloudflare Workers AIMCP clients (Claude Code, Codex CLI)Guardrails (prompt-injection defenses, rate limiting, quotas)Vision, speech-to-text, translation, and moderation pipelines

Frontend

JavaScriptTypeScriptReactReact NativeNext.jsRemixAstroTailwindCSSHTML/CSS

Backend

Node.jsCloudflare WorkersCloudflare D1Durable ObjectsREST APIstRPCPrisma / Drizzle ORMPostgreSQL / SQLiteExpress.jsHono.js

Mobile

ExpoReact NativeNativeWindMaestro E2EApp Store & Play delivery

Other

Stripe / Checkout.com PaymentsPostHog / Product AnalyticsSentryBusiness DevelopmentProject ManagementTeam ManagementCI/CD