AWS Certified Team — Same Timezone as You

Senior Engineers.
Faster Delivery.
US Timezone.

We're a 3-person senior engineering team from Chile (GMT-4) that builds enterprise web and mobile software with speed and precision. Angular migrations, full-stack MVPs, mobile apps, and security audits.

Angular 21 Spring Boot AWS React Native Cybersecurity
16+ Years Combined
3M+ Users Served
AWS Certified
GMT-4 Timezone
app.client-saas.io

$84.7K

Revenue

12.4K

Users

99.9%

Uptime

Our Services

What We Build

Engineering-led services for teams that need senior talent, fast execution, and production-grade results.

Angular Migration & Modernization

Migrate from Angular 2-15 to Angular 21+ with standalone components and Signals. Zero-downtime migration strategy proven at enterprise scale.

Zero downtime migration
Standalone components & Signals
Performance optimization
Full documentation

Full-Stack MVP Development

From idea to production in 6-10 weeks. Angular or React frontend, Java Spring Boot or Node.js backend, deployed on AWS with CI/CD.

Production-ready in 6-10 weeks
Scalable architecture
CI/CD included
30-day post-launch support

Mobile App Development

Cross-platform mobile apps with React Native. From MVP to App Store in weeks. Shared codebase for iOS and Android with native performance.

React Native (iOS & Android)
Offline-first architecture
Push notifications & analytics
App Store & Play Store deploy

Security & Architecture Audits

Comprehensive security assessment with real tools: Nessus vulnerability scanning, Burp Suite web pentesting, OWASP Top 10 review, plus architecture analysis.

OWASP Top 10 review
Vulnerability scanning (Nessus)
ISO 27001 / NIST alignment
Remediation roadmap
Simple Process

How It Works

A transparent 4-step process. Fixed-price proposals, weekly demos, no surprises.

01

Discovery Call

We learn about your project, goals, and constraints. Free, 30 minutes, no commitment.

02

Architecture & Proposal

We design the solution and deliver a fixed-price proposal within 48 hours. No surprises.

03

Build & Ship

We develop in 2-week sprints with weekly demos. You see real progress every week.

04

Launch & Support

We deploy, monitor, and support. 30-day bug-fix guarantee included.

16+

Years Combined Experience

3M+

End Users Served

70+

Microfrontends in Production

2wk

Sprint Cycles

Transparent Pricing

Engagement Models

Transparent pricing. No hourly billing surprises. Every engagement includes senior engineers only.

Sprint

$15,000 - $40,000

Fixed scope, fixed price, 2-6 weeks

Best for: Migrations, sprints, audits
  • Dedicated senior team
  • Weekly progress demos
  • Full documentation
  • 30-day support post-delivery
Book a Call
Most Popular

Project

$40,000 - $120,000

Full product development, 6-16 weeks

Best for: MVPs, platform builds, modernizations
  • Everything in Sprint, plus:
  • Architecture design
  • CI/CD pipeline
  • AWS deployment
  • QA & load testing
Book a Call

Retainer

$12,000 - $20,000 /mo

Dedicated team hours, ongoing development

Best for: Continuous development, maintenance, scaling
  • Everything in Project, plus:
  • Priority support
  • Daily or weekly standups
  • Backlog management
  • 3-month minimum
Book a Call

Need something custom? Let's talk.

Case Studies

Our Work

Real projects. Real results. No fictional case studies.

E

Enterprise Microfrontend Platform

Major Latin American Bank

Enterprise

80%

Faster Deployments

3M+

Customers Served

70

Independent Modules

Zero

Downtime Migrations

Redesigned the frontend architecture for a bank serving 3M+ customers. Built ~70 independent microfrontends on Angular 19 with Web Components, SSO/OAuth 2.0 via Keycloak, deployed via Cloudflare CDN.

Angular 19 Web Components Keycloak SSO Cloudflare CDN
A

AdminSmart -- Multi-tenant SaaS

SaaS

58+

Database Tables

<200ms

P99 Latency

Offline

PWA Support

5-role

Access Control

Property management SaaS with full tenant isolation via JWT claims, 5-role RBAC, async billing pipeline with RabbitMQ, and a custom Design System with 80+ tokens.

Angular 21 Spring Boot 3.5 MySQL RabbitMQ Docker
P

PrintUp.cl -- Hybrid Cloud Platform

E-commerce

$0/mo

Infrastructure Cost

50MB

File Uploads

Auto

Sync Pipeline

Zero-DT

DNS Migration

Custom printing e-commerce with hybrid architecture: Vercel serverless + self-hosted NextCloud + Supabase. Zero infrastructure cost on free tiers with files up to 50MB.

Next.js 16 React 19 Supabase MercadoPago Vercel
Tech Stack

Trusted Technologies

Enterprise-grade tools we use every day.

Frontend & Mobile
Angular 21
React Native
Next.js / Astro
TypeScript
Backend
Java 21 / Spring Boot
Node.js
PostgreSQL
RabbitMQ
Cloud
AWS Certified
Docker
Kubernetes
Cloudflare
Security & Quality
ISO 27001
OWASP
Jest / JUnit
GitHub Actions
Our Team

Meet the Team

Senior engineers only. No juniors, no outsourcing, no bait-and-switch.

FG

Felipe Guerra

CTO & Co-founder

Full-stack engineer with 6+ years in banking, government, and fintech. Led Angular 15-to-21 migrations and monolith-to-microservices transitions. AWS Cloud Practitioner + Developer Associate certified.

Angular 21 Java/Spring Boot AWS Docker/K8s Microservices
JJ

Jesus Jimenez

Mobile Lead & Frontend Engineer

Engineer with 7+ years building enterprise systems in Latin America's banking sector. Leads mobile development with React Native and supports frontend web with his Angular microfrontend expertise.

React Native Angular 2-21 Microfrontends TypeScript Cross-Platform
DW

David Wilson

COO & Co-founder

Business and security engineer with a background in Economics & IT. Specializes in cybersecurity audits (ISO 27001, NIST), client operations, and digital marketing. AWS re/Start certified.

Cybersecurity ISO 27001/NIST Nessus/Burp Suite SEO & Marketing Client Operations
FAQ

Frequently Asked Questions

What timezone are you in?
We're in GMT-4 (Chile), the same as US Eastern Time. We work US business hours (9 AM - 6 PM ET) so you get real-time collaboration, not overnight handoffs.
How do you handle communication?
Daily or weekly standups via Slack or Google Meet (your choice). We share progress via weekly demos, async updates in Slack, and full transparency in GitHub/Linear. You always know where your project stands.
What's your typical project timeline?
Sprints: 2-6 weeks. Full MVPs: 6-10 weeks. Enterprise modernizations: 12-24 weeks. Our senior-only team and battle-tested processes let us deliver 2-3x faster than traditional agencies.
How does pricing work?
We offer fixed-price engagements with clear milestones. No hourly billing surprises. Payment is typically 50% upfront, 50% on delivery (or 40/30/30 for larger projects). You know the total cost before we write a single line of code.
Do you work with US companies?
Yes. We operate a US-registered LLC and invoice in USD. We accept wire transfers and Stripe payments. Our contracts follow standard US MSA terms.
What if I'm not satisfied?
Every engagement includes a 30-day bug-fix guarantee post-launch. If something we built doesn't work as specified, we fix it at no additional cost. We also offer weekly demos so you can course-correct early.
Can you work with our existing team?
Absolutely. We integrate into your workflow: Git, Slack, Jira/Linear, your CI/CD. We've worked embedded in enterprise teams with 25+ developers. We adapt to you, not the other way around.
What makes you different from other agencies?
Three things: (1) Senior engineers only — our team has 16+ years combined building enterprise systems. (2) Web + Mobile — we cover the full stack from Angular/Spring Boot web apps to React Native mobile. (3) Same timezone — we're in GMT-4, no overnight delays. Plus, we offer security audits that most dev agencies can't.
Get In Touch

Let's Build Something Great

Book a free discovery call or send us a message. We respond within 24 hours.

Book a Discovery Call

30 minutes, free, no commitment. We'll discuss your project and see if we're a good fit.

Schedule a Call

Working Hours

We work US Eastern hours (9 AM - 6 PM ET)

We'll respond within 24 hours with a preliminary assessment.