A little about me

Hi, I’m Yerlin. I build for the web.

I build thoughtful websites and digital tools with React and Next.js. Based in Costa Rica, open to collaboration worldwide.

A laptop workspace for web development
Yerlin Ugarte

Web developer & systems engineer

Technical thinking. A practical perspective.

I’m a systems engineer focused on web development, modern technologies and improving processes through software. I enjoy working with JavaScript, React, Next.js, Linux and cloud platforms to turn ideas into useful digital experiences.

My professional background connects educational statistics, technology training, inventory and cost control. That experience helps me understand the people and processes behind a project before deciding what to build.

Understanding the problem is part of writing better code.

I’m analytical, self-taught and always learning. My next step is to keep building web products that are useful, thoughtful and easy to maintain, in collaboration with people and teams locally and internationally.

Let’s talk about your idea

The experience behind the work

Eurohogar Inmobiliaria

San José, Costa Rica · Jul 2023 — Present

Cost Assistant

Dec 2024 — Present

I manage and refine billing processes so every stage stays precise and aligned with established budgets. The work includes cost validation and coordination across departments to keep invoicing efficient, transparent and compliant — contributing directly to financial control and sustainability.

Warehouse Manager

Apr 2024 — Dec 2024

I led warehouse operations covering reception, storage, preparation and distribution. The focus was on resource optimization, precise control systems and coordinating the team so logistics stayed on time, on quality, and with fewer errors at every stage.

Inventory Control Administrator

Jul 2023 — Dec 2024

I owned the inventory flow: monitoring stock, producing detailed reports, coordinating suppliers for on-time delivery, and introducing tactics to reduce loss and improve rotation. I work fluently with inventory systems and across departments to keep a precise picture of company assets.

MINED

Belén, Rivas, Nicaragua · Sep 2017 — Jul 2023

IT Trainer

Oct 2019 — Jul 2023

I proposed and coordinated strategies for organizing the educational technology available to a secondary school. The work introduced new methodological approaches so students and teachers could actually use those tools to improve learning — not just possess them.

Statistics Lead

Sep 2017 — Oct 2019

As a statistician I analyzed and interpreted educational data to support key decisions. I designed methodologies to evaluate academic performance, identify trends and produce detailed reports, and presented findings visually so multidisciplinary teams could act on evidence.

Consejo Supremo Electoral

Nicaragua · Aug 2015 — Oct 2019

Technical Officer

Aug 2015 — Oct 2019

I kept the office running and provided careful, respectful service to citizens processing national identity documents for the first time and for renewals — combining operational discipline with public-facing quality.

Tecnológico Nacional — INATEC

Rivas, Nicaragua · Aug 2014 — Nov 2016

Instructor

Aug 2014 — Nov 2016 · Part-time

I helped strengthen the learning, competencies and capabilities of young people and adults through information and communication technologies — teaching as a way of making technical knowledge usable.