Costa Rica — Now Accepting New Projects

We Engineer Software
That Moves Business Forward

RcZun Technologies designs, builds and scales custom software for companies across the Americas. Senior bilingual engineers, your time zone, and a development center powered by one of the cleanest energy grids on the planet.

Start Your Project Explore Services

10+

Years of Experience

100+

Projects Delivered

98%

Renewable Grid Power

rczun ~/deploy

Live

const project = await rczun.build({
  client: "your-company",
  stack:  ["React", "Node.js", "AWS"],
  team:   "nearshore · UTC-6",
  power:  "clean energy"
});

await project.deploy(); // ✓ shipped

Build Status

Passing

All checks green

Uptime SLA

99.9%

Monitored 24/7

Time Zone

UTC-6

Aligned with the US

Grid Power

Renewable

Hydro · Geo · Wind · Solar

What We Do

End-to-End Software Development

From the first whiteboard sketch to production and beyond, we are the engineering partner that turns your ideas into reliable, scalable software.

Custom Software

Tailor-made applications built around your processes, from internal tools and ERPs to customer-facing platforms.

Web & Mobile Apps

Fast, accessible web applications and native or cross-platform mobile apps with a polished user experience.

Cloud & DevOps

Cloud architecture, migrations, CI/CD pipelines and infrastructure as code on AWS, Azure and Google Cloud.

AI, Data & Integrations

Dashboards, data pipelines, AI assistants and API integrations that connect your systems and automate the busywork.

Why RcZun

Your Nearshore Engineering Team

01

Same Time Zone, Real Collaboration

Costa Rica runs on UTC-6 all year round. We work your business hours, join your stand-ups and answer on Slack in minutes, not overnight.
02

Senior, Bilingual Talent

Experienced engineers fluent in English and Spanish, backed by Costa Rica's strong education system and mature technology sector.
03

Agile & Transparent

Two-week sprints, live demos and full visibility into your backlog, code and progress. No black boxes, no surprises.
04

Quality & Security First

Code reviews, automated testing and secure-by-design practices on every project, so what we ship stays reliable long after launch.

Solutions

What We Build

Proven solution types we deliver for startups, growing companies and enterprises across industries such as logistics, finance, retail, tourism and healthcare.

Enterprise Portals

Customer & partner portals

E-commerce

Online stores & marketplaces

SaaS Products

Multi-tenant platforms

Business Tools

ERP, CRM & back-office

iOS & Android

Native performance

Cross-Platform

One codebase, both stores

Field & Logistics

Offline-first workflows

IoT Companion Apps

Connected devices

Cloud Migration

Move & modernize

CI/CD Pipelines

Automated delivery

Containers & IaC

Scalable architecture

Managed Support

Monitoring & maintenance

Business Intelligence

Dashboards & KPIs

AI Assistants

Chatbots & automation

Data Engineering

Pipelines & warehouses

API Integrations

Connect your systems

Arenal Volcano surrounded by rainforest in Costa Rica — Arenal Volcano, Costa Rica

Pura Vida Engineering

Built in Costa Rica.
Powered by Clean Energy.

We are proud to be based in Costa Rica, a country known worldwide for its peace, its people and its commitment to the planet. Nearly all of the electricity that powers our workstations comes from water, volcanoes, wind and sun, so the software we write for you is built with a remarkably small carbon footprint.

98%+

Renewable electricity in most years since 2015*

UTC-6

Real-time overlap with North American business hours

25%+

Of national territory protected as parks & reserves

~5%

Of the world's biodiversity lives here

Hydro, geothermal, wind and solar power our day-to-day operations.
Paperless, remote-friendly workflows that cut commuting and waste.
Efficient code and right-sized cloud infrastructure: less compute, lower bills, lower emissions.

*National electricity generation data, Instituto Costarricense de Electricidad (ICE).

Client Stories

Trusted by Teams Across the Americas

"RcZun felt like an extension of our own team. Same time zone, clear communication and a product that shipped on schedule. Our customer portal went from idea to production in a single quarter."

Chief Technology Officer Logistics Company · United States

"They modernized a legacy system nobody wanted to touch, moved it to the cloud and cut our hosting costs in the process. Transparent sprints and zero surprises."

Director of Operations Financial Services · Costa Rica

"Senior engineers who actually challenge your assumptions. Our mobile app ratings went up and support tickets went down after RcZun rebuilt it."

Product Manager Retail Brand · Mexico

"Knowing our software is built on a nearly 100% renewable grid matters to us and to our investors. The quality of the work is what keeps us coming back."

Founder & CEO Climate-Tech Startup · Canada

Let's Build Your Next Product Together

Whether you need a full product team, extra hands for an existing project or a technical partner to validate an idea, we are ready to start. Tell us what you are building.

Request a Free Consultation See What We Build

Let's Talk About Your Project

Share a few details about what you need and one of our engineers will get back to you within one business day, in English or Spanish.

Email

info@rczun.com
Phone / WhatsApp

+506 8655-0614
Location

Costa Rica, Central America
Serving clients across the Americas
Business Hours

Mon – Fri: 8:00 AM – 6:00 PM (UTC-6)

First Name

Last Name

Email Address

Company

I'm interested in

Message

We usually reply within one business day.

We Engineer Software That Moves Business Forward