SENIOR FULL-STACK & PRODUCT ENGINEER

Building software that businesses rely on.

I design and build SaaS platforms, business systems, backend APIs, and AI–enabled applications that replace manual workflows with production-ready software.

Eight years of experience delivering products across healthcare, education, hospitality, fintech, communications, travel, and logistics.

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Open to full-time, contract, and freelance opportunities

8+: Years; Building production software
10+: Products; Business systems and SaaS platforms
7,000+: Students; Supported by an education platform
50%: Performance; Approximate API performance improvement
20%: Cost Reduction; Approximate infrastructure cost reduction

SELECTED PRODUCTS

Products built around real operational problems.

These projects cover healthcare, hospitality, education, and communications. Each combines product planning, system architecture, application development, and production delivery.

Veterinary Management SaaS Active product

VetOps

A veterinary practice management platform that brings appointments, patient records, billing, inventory, and digital vaccine tracking into one operational system.

Capabilities

Appointment management
Client and patient records
Consultation records
POS and billing
Inventory
Digital vaccine cards
Client-facing workflows

Vue.jsSupabasePostgreSQLFlutterOffline-first architecture

Explore VetOps

Restaurant Management System Delivered for live restaurant operations

KitchFlow

A production restaurant platform designed around real service workflows, unstable connectivity, kitchen printing, inventory, staff operations, and reporting.

Capabilities

Point of sale
Inventory management
Staff management
Reporting
Offline-first workflows
Kitchen and dining printing
Real-time synchronization

Vue.jsFastAPIPythonPostgreSQLRedisDocker

View KitchFlow

Android SMS Gateway Active platform

TxtFlow

A local-first messaging platform that turns Android devices into programmable SMS gateways for transactional and campaign workflows.

Capabilities

Android-based SMS delivery
API-triggered messaging
Campaign workflows
Local device infrastructure
Reduced dependency on external SMS providers

FlutterAndroidREST APIsLocal-first architecture

Learn about TxtFlow

AI Learning Platform Archived product / inactive

PulsePrep

An adaptive nursing licensure review platform combining AI-generated questions, learner insights, progress tracking, and engagement-focused exam workflows.

Capabilities

Adaptive examinations
AI-generated questions
Real-time progress tracking
Learner analytics
Engagement-driven UX

Nuxt.jsSupabasePostgreSQLOpenAI APIAI integration

View project overview

CAPABILITIES

From operational problem to production software.

SaaS Platforms

Design and development of multi-user products, subscription platforms, dashboards, permissions, operational workflows, and production infrastructure.

Business Systems

Custom systems that replace spreadsheets and disconnected tools across billing, inventory, scheduling, reporting, and internal operations.

Backend APIs

REST API architecture, integrations, database design, performance optimization, and backend modernization.

AI-Enabled Applications

Practical AI integration using language models, structured generation, workflow automation, and domain-specific product features.

Mobile Applications

Cross-platform mobile products and companion applications built with Flutter and web-connected APIs.

Architecture & Modernization

System design, legacy migration, cloud infrastructure, offline-first architecture, Dockerized deployment, and scalability planning.

PRODUCT DELIVERY

I work across the full product lifecycle.

Understand

Clarify the operational problem, constraints, users, and success criteria.

Design

Define architecture, data model, workflows, APIs, and product scope.

Build

Develop maintainable frontend, backend, mobile, and infrastructure components.

Validate

Test against real workflows, edge cases, network constraints, and business requirements.

Ship

Deploy, monitor, document, and support the production system.

Improve

Optimize performance, reduce complexity, and evolve the product based on usage.

ENGINEERING

Principles behind the work.

Product Before Features

Start with the operational problem, not a list of requested screens.

Simplicity Over Ceremony

Prefer understandable systems and practical workflows over unnecessary abstraction.

Real-World Constraints Matter

Connectivity, device limitations, staff behavior, and daily operations shape the architecture.

Ownership Through Production

Architecture, implementation, deployment, and maintenance are part of the same responsibility.

Performance Is a Feature

Fast feedback and reliable workflows are essential for operational software.

Build for Change

Products should remain maintainable as business requirements evolve.

TECHNOLOGY

Selected technical stack.

Tools and platforms I work with regularly across backend, frontend, mobile, data, infrastructure, and AI.

Backend

Laravel
PHP
FastAPI
Python
Node.js
NestJS

Frontend

Vue.js
Nuxt.js
JavaScript
React
Bootstrap

Mobile

Flutter
Ionic
Android integrations

Data

PostgreSQL
MySQL
Supabase
Redis

Infrastructure

Docker
Ubuntu
Nginx
Vercel
DigitalOcean
CI/CD

AI

OpenAI API
Prompt engineering
AI workflow integration
Structured generation

View full technical experience →

EXPERIENCE

Experience across products, platforms, and industries.

Founder / Lead Developer

Self-Directed Products

2025–Present

Leading the architecture and development of VetOps, TxtFlow, PulsePrep, and other product initiatives.

Senior Software Engineer

ButFor

2024–2025

Modernized backend systems, improved API performance by approximately 50%, and reduced infrastructure costs by approximately 20%.

Senior Web Developer

PwC Philippines

2019–2021

Built internal enterprise applications, reporting tools, backend APIs, and operational dashboards.

View complete experience →

WRITING

Notes from building software.

Engineering Jul 10, 2026 6 min read

How a weekend prototype became a production deployment tool

PATTY CLI started as 50 lines of shell script. Two years later, it handles deploys, backups, rollbacks, and server diagnostics across multiple projects. The lesson: start ugly, ship fast, let real needs drive the roadmap.

Architecture Jul 10, 2026 6 min read

What offline-first really means for operational software

Offline-first is not a feature you bolt on. It is an architectural constraint that reshapes how you model data, handle conflicts, and think about reliability.

Product Jul 3, 2026 5 min read

Why business systems fail when they ignore actual workflows

The gap between how work happens and how software models it is where most operational tools break. Closing that gap means understanding the job before writing a single line of code.

Engineering Jun 22, 2026 7 min read

What I learned migrating a production API from Node.js to FastAPI

A 50% performance improvement and 20% infrastructure cost reduction did not come from switching frameworks. It came from rethinking the data layer, query patterns, and deployment architecture.

Process Jun 15, 2026 5 min read

From feature request to maintainable product architecture

Most feature requests describe a symptom, not a solution. Learning to translate requests into architectural decisions is what separates software that survives from software that has to be rewritten.

View all writing →

LET'S WORK TOGETHER

Need an engineer who can take a product from idea to production?

I am open to remote full-time roles, long-term engineering engagements, and selected product development projects.

Email Carlo View Résumé

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carlodflores.me
Manila, Philippines