Available for remote work

Mobile Product Engineer · Flutter Developer · UX/UI

I design, buildand ship mobile products.

I build production Flutter apps, startup MVP foundations, Supabase backends, UX/UI systems and AI-assisted product workflows.

Production-focused, async-friendly, and open to remote collaboration.

Portrait of Christopher Paz León

Selected work

Real products, ready to use.

A focused selection of work across mobile development, product architecture, UX/UI, backend systems and AI-assisted workflows.

4Track / VistoGPS

4Track / VistoGPS

Redesigned and developed Flutter GPS tracking apps shipped across Google Play, App Store and Huawei Gallery.

Store-shipped mobile work with realtime tracking and maps.

JobMatch

JobMatch

Built the core MVP foundation for an AI-powered recruiting platform serving candidates, companies and recruiters.

Product and technical base behind a funded startup milestone. (~20$K / Startup Perú 12G)

CookPilot

CookPilot

Building an AI-native product from zero to one across Flutter, Supabase, UX/UI, data modeling, design systems and AI workflows.

Zero-to-one product work across app, backend, UX and AI logic.

Experience

Built across production, MVPs and pre-launch products.

A compact timeline of the work behind the case studies.

Building a pre-launch AI-native product across Flutter, Supabase, UX/UI, Figma design systems, data modeling, product assets and structured AI workflows.

Why it matters

End-to-end product lab showing product strategy, mobile execution, backend architecture and AI workflow ownership.

  • Own product direction, UX/UI system, Flutter app foundation and Supabase architecture.
  • Model decision flows around user context, constraints, structured AI output and mobile UI actions.
FlutterDartSupabasePostgreSQLRLSEdge FunctionsUX/UIFigmaDesign systemLLM APIsStructured outputsProduct assets

Built the core MVP foundation for an AI-powered recruiting platform, including Supabase backend infrastructure, candidate/company flows, dashboards and AI-assisted matching workflows.

Why it matters

Created the technical/product foundation behind a funded startup milestone and continued V1 development.

  • Implemented auth, candidate/company flows, job posts, applications, dashboards and backend structure.
  • Engineered matching logic and AI-assisted workflows with Supabase, RLS and Edge Functions.
SupabasePostgreSQLSQLRLSEdge FunctionsSupabase AuthAI workflowsMatching logicDashboardsMVP foundationTechnical planningHandoff

Redesigned and developed production Flutter GPS tracking apps from Figma to store release as the sole mobile/frontend owner.

Why it matters

Mobile apps shipped across stores and remained in production after the engagement.

  • Owned Figma-to-Flutter implementation, realtime GPS flows, maps and mobile architecture.
  • Integrated WebSockets, custom backend auth/push, biometric auth, offline sync and store releases.
FlutterDartRiverpodClean ArchitectureRealtime GPSWebSocketsMapsOffline syncBiometricsPush notificationsCodemagicStore releases

Capabilities

What I can own end to end.

I work best where mobile execution, product thinking, UX/UI, backend logic and AI workflows need to move together.

01

Mobile Product Development

Flutter apps built with strong UI execution, state management, production readiness and cross-platform delivery.

A dark development workspace showing code and a mobile app preview.
FlutterDartRiverpodClean ArchitectureMobile UIAndroidiOSStore releases

02

UX/UI Systems

Product interfaces designed with hierarchy, clarity, motion, surfaces and implementation in mind.

A dark Figma-style workspace showing CookPilot mobile interface screens.
FigmaUX/UIDesign systemsVisual hierarchyFigma-to-FlutterHigh-fidelity assets

03

Supabase Backends

Backend foundations for MVPs and product features using PostgreSQL, auth, RLS, Edge Functions and structured data.

A dark database schema visualizer showing related product backend tables.
SupabasePostgreSQLSQLRLSEdge FunctionsAuthRealtime

04

AI Product Workflows

AI-assisted product features built around structured outputs, backend constraints and real user flows.

A dark AI product workflow interface showing structured product logic.
LLM APIsAI workflowsSystem PromptsStructured outputsProduct logicAI-assisted features

05

Production Delivery

End-to-end delivery from ambiguous product idea to working software, including deployment, debugging and handoff.

A dark release readiness interface showing production delivery states.
CI/CDCodemagicApp storesProduction debuggingTechnical handoffRemote collaboration

Availability

Looking for someone who can design, build and ship?

I’m open to remote Flutter/Mobile roles, contractor work and MVP/product builds across LATAM and global teams.

Looking for

Flutter Developer rolesMobile Engineer rolesMobile Product Engineer rolesContractor workStartup MVP buildsAI-assisted product featuresSupabase-backed product work