Free discovery call.
If technical fit isn't there, we tell you on the first call. No high-pressure sales follow-up.
Custom software, delivered by accountable engineering
For service businesses that have outgrown manual operations and need real software, built to your workflow, integrated with your existing tools, delivered with full source code and architecture documentation.
II
AUDIENCE · WHO THIS IS FOR
You're in the right place if:
Your team coordinates schedules, payments, records, and customer communications by hand every day, and it shows.
You've outgrown spreadsheets and generic SaaS but no off-the-shelf product fits your actual workflow.
You need domain-specific functionality, compliance handling, third-party integrations, sensitive data management, that commercial platforms don't accommodate.
III
SCOPE · WHAT WE BUILD
What we build.
Custom operational systems
Scheduling, records management, internal CRMs, industry-specific workflow software. Designed to your operation, not the other way around.
Compliance-handling systems
Electronic invoicing, audit trails, regulated data workflows. Built in, not bolted on.
WhatsApp Business API integrations
Scheduling chatbots, automated notifications, assisted customer service via the official API, not scraping or fragile workarounds.
Customer portals
Secure self-service access for clients, patients, or students. Reduces manual lookup work across your team.
System integrations and automations
Connecting your existing tools (Google Workspace, legacy databases, third-party SaaS) without replacing what already works.
IV
ENGINEERING · HOW WE BUILD IT
The engineering posture.
We build with modern, mature tooling: TypeScript in strict mode, Node.js, React, PostgreSQL. Every system ships with source code, infrastructure-as-code, and architecture documentation. So your team, or any future engineer, can maintain it with us or without us.
For systems handling sensitive data, security isn't a feature. It's baseline: at-rest encryption for sensitive fields (pgcrypto), role-based access control, Zod validation at every API boundary, audit logging, httpOnly cookie authentication. Not bolted on. Built in.
STACK · INTEGRATIONS
Frontend
React 18 · Next.js · Tailwind
Backend
Node.js · Express · TypeScript · Zod
Database
PostgreSQL · pgcrypto
Pagos
Wompi · Stripe · regionales
Comms
WhatsApp Business API · Twilio
Testing
Vitest · Supertest · Playwright
VI
PROCESS · SOFTWARE PROJECT
How we run a software project.
Problem first, solution second. Demos every 1–2 weeks. Code in shared repo from day one.
01
Discovery
30 MIN · FREE
We understand the problem, not the solution. If technical fit isn't there, we tell you.
02
Technical analysis
1–2 WEEKS
Integrations, data models, risks, dependencies. No production surprises.
03
Proposal with architecture
5–7 DAYS
Scope, tech stack, timeline, cost. Signable document.
04
Sprint-based construction
VARIABLE
Demos every 1–2 weeks. Code in shared repository from day one.
05
UAT and handoff
1–2 WEEKS
Real-data testing, team training, complete documentation.
06
Post-go-live support
30 DAYS · OPTIONAL +
30 days included. Optional monthly retainer for ongoing evolution.
VII
INVESTMENT · REFERENCE RANGE
Investment.
Every engagement is scoped to your needs, integrations, workflow complexity, compliance requirements, user base size. As a reference:
CUSTOM SOFTWARE PROJECTS
$2,500+USD
Entry point. For specific modules, targeted integrations, or operational systems with bounded scope.
FULL OPERATIONAL SYSTEMS
$12,000–$25,000+USD
Typical range for systems with compliance handling, chatbot, customer portal and included support.
If your budget is under $2,500, we'd rather refer you to a better-fit option, reach out and we'll point you in the right direction. No sales pitch.
VIII
COMMITMENTS · HOW WE DE-RISK
Four written commitments.
If we fail any of them, you know exactly what to call out.
Written proposal with architecture.
Stack, integrations, timeline and cost in a signable document. No scope creep.
You own the code and documentation.
Repository, infrastructure, architecture documentation, training. No post-delivery vendor dependency.
Under 3 business hours response time.
Direct communication with the founders, in Spanish or English. Real bilingual delivery, not Google Translate.
IX
FREQUENT QUESTIONS
The questions everyone asks.
Why not use an existing SaaS platform?
If a SaaS solves your problem, use it. We'll tell you on the call. We build custom software when no existing tool fits your workflow, when you need integrations that don't exist commercially, or when your volume no longer justifies per-user pricing on a generic platform.
What happens if I need changes after delivery?
We deliver source code and complete documentation. You can hire any developer to make changes. You're not locked in with us. If you'd prefer we continue, we offer monthly retainers with dedicated hours.
Do you handle sensitive data? Is it secure?
Yes. We handle health data, personal data, and financial data with at-rest encryption, role-based access control, audit logging, and documented security architecture. For regulated sectors (healthcare, financial, educational), security is part of the design, not an add-on.
Do you work with legacy systems we already have?
Yes. If your current system works but doesn't integrate with the new build, we can build integration layers or modernize progressively without breaking what's already in production.
THE CONVERSATION
Let's talk for 30 minutes. No commitment, no hard sell
If you have a specific pain and want to know whether GadDev is the right partner, book the call. If we're not the right fit, we'll tell you, and recommend someone who is.