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Senior Frontend Developer

Facundo Perez Montalvo

React, Next.js, and TypeScript developer shipping polished interfaces for teams that care about quality.

I focus on product UI, design systems, and performance. Recent work has centered on frontend modernization, scalable interfaces, and close collaboration with backend and product teams.

React, Next.js, TypeScriptProduct UI, design systems, performanceRemote from Argentina
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Selected Projects

Case studies that back up the story

Projects framed as evidence of product thinking, frontend architecture, and implementation quality.

Cartaonline dashboard showing digital menu management and QR storefront features

Cartaonline

Restaurant SaaS for digital menus, product management, and QR-ready storefronts.

Role: End-to-end build across UX, frontend architecture, forms, auth, and backend integrations.

  • Built flows for store setup, menu management, QR sharing, and AI-assisted menu imports.
  • Used App Router patterns and typed validation to keep a broad product surface maintainable.
Next.jsTypeScriptPrismaPostgreSQLClerkZodVercel AI SDK
Live DemoSource

Live demo language: Spanish, aligned with the target market in Argentina.

Barbershop management app with scheduling interface and booking flow

Barbershop Management

Booking product for service businesses with scheduling, team management, and reservations.

Role: Full-stack implementation focused on branded UI, booking flows, and predictable scheduling.

  • Created a polished marketing and booking surface that balances branding with practical scheduling needs.
  • Structured the app around reusable UI patterns, typed validation, and predictable admin flows.
Next.jsTypeScriptDrizzle ORMTanStack Queryshadcn/uiZod
Live DemoSource
Real estate platform displaying property listings with CMS-powered content

Real Estate Platform

Content-driven property browsing built for speed, SEO, and easy CMS updates.

Role: Frontend architecture and CMS integration focused on fast browsing and clear information hierarchy.

  • Built a CMS-backed property site that stays fast while allowing non-technical content updates.
  • Prioritized search visibility, responsive browsing, and clean editorial presentation.
AstroTypeScriptTailwind CSSContentfulSEO
Live DemoSource

Live demo language: Spanish, aligned with the intended customer market.

Experience Snapshot

Recent experience, compressed to what matters

Current product work first, with earlier experience supporting the story through customer-facing problem solving and hands-on shipping.

January 2025 - Present

Svitla Systems

Senior Frontend Developer

Transitioned into cross-team leadership — code reviews, frontend standards, and architecture guidance.

Build product UI for a family history platform, with work spanning migration support, design implementation, performance, and team-facing frontend patterns.

  • Owned end-to-end delivery of complex features including an AI-powered story creation pipeline — full architecture design, technical documentation, and ahead-of-deadline shipping.
  • Drove a platform-wide Next.js migration, resolving critical architectural constraints and translating Figma designs into accessible, production-ready React components.
  • Established team-wide coding standards and drove a large-scale legacy code reduction. Grew into cross-team leadership — conducting code reviews, guiding architecture, and partnering with backend and QA on delivery quality.

August 2023 - August 2024

SupportYourApp

Technical Support Consultant & Frontend Developer

Solved technical product issues for end users while combining troubleshooting, communication, and frontend/backend context.

  • Maintained an average customer satisfaction score of 95% across support work.
  • Resolved product issues through a mix of debugging, customer communication, and practical HTML, CSS, and JavaScript fixes.

March 2022 - Present

Freelance

Frontend React Developer

Built client-facing web applications for local businesses with a focus on accessibility, responsive behavior, and maintainable frontend delivery.

  • Delivered production sites and app experiences across hospitality, services, and real estate use cases.
  • Handled the full loop from client requirements and UX decisions to implementation and iteration.

Resume and Contact

Resume, links, and an easy way to reach me

If the work feels like a fit, you can grab the resume or send me a note.

Resume

Grab the latest resume

A one-page snapshot of my recent work, focused on recent product UI, and frontend delivery.

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Facundo Perez Montalvo

Senior Frontend Developer focused on React, Next.js, TypeScript, and product UI that feels intentional in production.

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