Freelance web developmentCurrently available for new projects

Websites and web apps that work as hard as you do.

I'm César — a full stack developer in San José, Costa Rica. I help businesses and founders turn ideas into fast, reliable digital products, from a landing page that converts to a custom tool that saves your team hours every week.

  • You work directly with the developer
  • Fixed-price proposals, no surprise invoices
  • Remote, worldwide — EN / ES

Services

No agencies, no handoffs, no telephone game. You work directly with the person writing the code — from the first call to launch and beyond.

01
Business websites & landing pages

Small businesses, professionals, and startups that need a web presence that actually brings in customers — not just a digital business card.

What you get

  • A fast, modern website built with Next.js — the same technology used by Nike, Notion, and OpenAI
  • A content management system (CMS) so you can update text, images, and pages yourself — no developer needed for every change
  • Mobile-first responsive design that looks sharp on every screen
  • SEO fundamentals done right: metadata, performance, structured data, sitemap
  • Analytics set up so you know what's working
  • Deployment, domain setup, and a smooth handoff

Good fit if you're thinking

Our current site is slow / outdated / embarrassingWe're launching and need to look credibleI want to edit my own site without calling a developer

Pricing

From $800

Timeline

2–4 weeks

02
Web applications & internal tools

Businesses drowning in spreadsheets, manual processes, or off-the-shelf software that almost fits. Founders who need an MVP built right the first time.

What you get

  • A custom web application designed around your actual workflow — dashboards, booking systems, admin panels, client portals, trackers
  • Solid architecture: React/Next.js front end, Node.js back end, PostgreSQL database
  • User accounts, roles, and permissions where you need them
  • Clean, documented code you own completely — no lock-in
  • Testing and deployment pipeline so updates don't break things

Good fit if you're thinking

We run our whole operation on spreadsheetsWe need software that does exactly this, and nothing on the market doesI have an idea and need a working product to show users or investors
See TrackBit — a full habit-tracking application →

Pricing

From $4,500, scope-based

Timeline

4–10 weeks depending on scope

03
APIs, integrations & automation

Teams whose systems don't talk to each other, or who waste hours on tasks a script could do in seconds.

What you get

  • Custom REST or GraphQL APIs built with Node.js, Express, or FastAPI
  • Integrations between the tools you already use — payment processors, CRMs, email platforms, spreadsheets
  • Automation of repetitive workflows: data syncing, report generation, notifications
  • Database design and optimization (PostgreSQL, MySQL, Redis)
  • Documentation your next developer will thank you for

Good fit if you're thinking

Someone copies data from system A to system B every single dayWe need our website to talk to our inventory / CRM / payment system

Pricing

From $600/project or $45/hr

Timeline

1–4 weeks per integration or API

04
Ongoing support & maintenance

Anyone who wants their site or app to stay fast, secure, and up to date without thinking about it.

What you get

  • Monthly updates, security patches, and dependency upgrades
  • Uptime and performance monitoring
  • A set number of hours for small changes and improvements
  • Priority response when something breaks

Pricing

From $150/month · Cancel anytime

How I Work

A clear process, no surprises. Here's what working together looks like:

01

Discovery (free)

We talk — video call or email, your choice. You tell me what you need and what success looks like. I ask a lot of questions. If I'm not the right fit, I'll tell you and point you somewhere better.

02

Proposal

You get a written proposal: scope, timeline, price, and what's included. Fixed price for fixed scope — no surprise invoices.

03

Build

I work in short cycles and show you progress regularly — usually weekly. You see the real thing early and often, so course corrections happen when they're cheap, not at the end.

04

Launch & handoff

I deploy the project, walk you through everything, and hand over all the code, credentials, and documentation. It's yours. If you want me to stick around, that's what the support plan is for.

FAQ

¿Tenés un proyecto en mente?

Contame qué estás tratando de construir: con un par de oraciones basta para empezar. Respondo en un día hábil.