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Cesar Bastidas

@cesarbastidas

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React / Next.js Frontend Engineer · Fullstack Capable · TypeScript

Argentina

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What I'm looking for

I’m looking for a remote frontend or frontend-leaning fullstack role where I can build and ship real product features using React and Next.js. I’m especially interested in product-driven environments where I can contribute quickly, take ownership of features, and continue strengthening backend patterns, testing, and system design.

Frontend Engineer specialized in React and Next.js, with real fullstack experience using NestJS, PostgreSQL and MongoDB.

I build production-ready applications with a strong focus on clean UI, performance and maintainable architecture. I’m comfortable working across the stack — from frontend state management (Zustand, TanStack Query) to backend APIs, authentication and database design.

Recent work includes:

– AI-powered fitness tracker: analyzes meals using Gemini API and logs structured nutritional data automatically

– Full e-commerce platform with authentication, admin dashboard and payments flow

– Tested React applications with full unit coverage (Vitest + React Testing Library)

I approach development with a clear process: understand the problem, evaluate tradeoffs, and build with a defined architecture — not trial and error.

Currently open to remote opportunities where I can contribute quickly and grow within a strong engineering team.

Portfolio: portfolio-v2-flax-delta.vercel.app

GitHub: github.com/CB2104

Experience

Work history, roles, and key accomplishments

Current

Fullstack Developer

Current

Independent Projects

Jan 2026 - Present (3 months)

Built and deployed fullstack web apps including an AI Fitness Tracker using the Gemini API to extract nutritional data and log it to PostgreSQL/MongoDB, plus e-commerce and SPA catalog/search projects with authentication and testing. Delivered production-ready frontends on Next.js and backends with NestJS using TypeScript.

Next.js NestJS TypeScript Gemini API PostgreSQL MongoDB Prisma Auth.Js Server Actions Unit Testing

IT Support & QA Tester

Upwork

Jan 2020 - Jan 2024 (4 years)

Provided remote IT support and QA testing for US-based clients, managing virtualization environments and validating app behavior across emulated setups (Nox, LDPlayer, BlueStacks). Identified geolocation bugs and vulnerabilities and supported multi-environment functional/compatibility testing across Windows and multiple Linux distributions.

QA Testing IT Support Virtualization Mobile Emulation (Nox LDPlayer BlueStacks)Functional Testing Geolocation Bug Analysis Windows 10