Available for selected projects

Guanajuato · México

Senior Software Engineer · Full-Stack Developer · Software Architect

I turn complex software needs into systems built to operate.

20+ years designing, building and validating software across frontend, backend, architecture, APIs, quality engineering and production delivery.

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20+ YEARS Software engineering
FULL-STACK Frontend · Backend · Data
E2E Architecture to release
SYSTEM / DELIVERY

Engineering model

Software is a system, not a collection of screens.

01DiscoverCONTEXT
02SpecifySPEC
03ArchitectDESIGN
04BuildCODE
05ValidateQA
NUXTVUETYPESCRIPTNODEAPIsQUALITY

Services

Engineering services built around real delivery.

Architecture, implementation, integrations and quality work as parts of the same engineering system.

01

Software architecture & technical discovery

Technical scope, architecture, contracts, data, risk and delivery strategy before implementation commitments are made.

  • Solution architecture and technical decisions
  • Data model and integration contracts
  • Incremental plan with acceptance criteria
02

Full-stack product development

Maintainable, production-oriented web applications from user experience through APIs, persistence and deployment.

  • Vue / Nuxt / React and TypeScript frontend
  • Node.js / Express / NestJS and Python / FastAPI APIs
  • Unit, integration and E2E testing
03

ERP, SaaS & business systems

Operational process modeling, roles, permissions, business workflows and traceability for platforms that support real operations.

  • Operational workflows and RBAC
  • Transactional and administrative modules
  • Auditability, validation and release readiness
04

APIs & systems integration

REST/JSON API design and integration, external services and data flows with validation controls and explicit error handling.

  • REST / JSON / OpenAPI contracts and validation
  • Third-party integrations
  • Observability and error strategy
05

Quality engineering & modernization

Risk reduction through testing, regression, technical review and controlled evolution of existing applications.

  • Testing strategy and coverage
  • Regression and defect audits
  • Incremental modernization plan
06

Cloud, Docker & technical delivery

Build, environment and deployment preparation with technical documentation, configuration control and release criteria.

  • AWS / Azure, Docker and environment configuration
  • GitHub Actions, CI/CD and release validation
  • Runbooks and technical documentation
Explore all services

Choose your path

One portfolio, two clear outcomes.

Hiring teams can validate experience and technical depth. Clients can evaluate services, delivery approach and selected work.

Selected work

Selected systems, engineered for real-world use.

A selection of business systems, healthcare products and professional digital experiences, presented within explicit evidence boundaries.

SELECTED_WORK / 03PUBLIC_EVIDENCE / ONTRUTH_GUARD / ACTIVE
01Selected work

Clinical & administrative ERP

Publicly verified

MediHeart ERP Dental

Dental platform connecting patients, scheduling, records, odontograms, treatments, payments, inventory and role-based operations.

ERPRBACSecurityAuditabilityResponsive UXHealthcare workflows
DEMO / COLD_START
May need a few seconds to start
View project →Open demo
02Selected work

Professional website & digital presence

Publicly verified

Dr. Juan Alberto García Núñez

Professional website for a urologic oncology specialist with service information, contact paths, locations and clear appointment calls to action.

Web UXContent architectureLocal intentConversion pathsResponsive web
View project →Open demo
03Selected work

Business application

Limited public evidence

ERP FASA

Public deployment of an ERP application. This portfolio release avoids publishing features or outcomes that cannot be verified from the currently available public source.

ERPBusiness software
DEMO / COLD_START
May need a few seconds to start
View project →Open demo

6 public project references currently available.

Open project index

Capabilities

Full-stack depth, connected as one system.

Frontend, APIs, data, cloud and quality are not isolated specialties. They are layers of the same delivery architecture.

42 / CAPABILITIESARCHITECTURE / E2E

Architecture perspective

Technology choices make sense only inside the system they support.

The architecture view shows how the capabilities already present in this portfolio connect from user experience through APIs and data to deployment, with quality applied across the entire flow.

01System firstArchitecture before isolated tooling.
02Boundaries matterExplicit contracts between layers.
03Quality built inValidation across the delivery flow.
SYSTEM_ARCHITECTUREFULL_STACK / E2E
CONNECTED
01EXPERIENCE

Interface layer

User-facing web experiences and typed frontend implementation.

Vue 2/3NuxtReactJavaScriptTypeScriptVite
02APPLICATION

Application & API layer

Business services, HTTP contracts and integration boundaries across Node and Python ecosystems.

Node.jsExpress.jsNestJSPythonFastAPIGoPHPREST / JSONOpenAPI
03DATA

Data layer

Relational, document and cloud data stores selected around system requirements.

PostgreSQLMySQLMongoDBFirebaseSQL ServerOracle
04DELIVERY

Cloud & delivery layer

Cloud, container and CI/CD practices that move software toward production.

AWSAzureDockerGit / GitHubGitHub ActionsCI/CD
FRONTEND → BACKEND → DATA → CLOUDQUALITY / BUILT_IN

Technical capability matrix

A broad stack, organized by engineering responsibility.

Every item below comes from the existing verified professional capability inventory used by this portfolio.

01INTERFACE / PRODUCT

Frontend engineering

  • Vue 2/3
  • Nuxt
  • React
  • JavaScript
  • TypeScript
  • Vite
  • HTML5
  • CSS3
02APPLICATION / INTEGRATION

Backend & APIs

  • Node.js
  • Express.js
  • NestJS
  • Python
  • FastAPI
  • Go
  • PHP
  • REST / JSON
  • OpenAPI
03SQL / DOCUMENT / CLOUD

Data systems

  • PostgreSQL
  • MySQL
  • MongoDB
  • Firebase
  • SQL Server
  • Oracle
04ENVIRONMENT / RELEASE

Cloud & delivery

  • AWS
  • Azure
  • Docker
  • Git / GitHub
  • GitHub Actions
  • CI/CD
05TEST / REGRESSION / UAT

Quality engineering

  • Unit Testing
  • API / Contract Testing
  • Integration Testing
  • E2E
  • Regression Testing
  • UAT
  • Release Acceptance
06SYSTEM / DECISION / PRACTICE

Architecture & product

  • Software Architecture
  • OOP
  • Design Patterns
  • AI Agents
  • Agile / Scrum
  • Technical Documentation

Experience

Two decades across product, consulting and engineering.

CAREER_LEDGER04 / STAGES
  1. 01
    Jan 2022 — Aug 2026PRODUCT / FULL_STACK

    Product engineering

    Senior Full-Stack Software Engineer

    Atlas Data Mapping / BrightInvestor

    Customer-facing applications, data-mapping tools, Vue components, REST/JSON APIs, integrations, PostgreSQL, AWS, Docker and multi-level testing.

    LATEST
  2. 02
    2018 — 2021PRODUCT / QUALITY

    Product & quality engineering

    Software Engineer — Full-Stack / Quality Engineering

    Functionize Inc.

    Product features, reusable modules, internal tools, backend, APIs, data integration and quality engineering in AWS environments.

    ARCHIVE
  3. 03
    2015 — 2018CONSULTING / DELIVERY

    Independent consulting

    Founder / Independent IT Consultant

    Software Consult Group

    Transactional and web solution delivery from discovery, architecture and estimation through development, testing, documentation, deployment and support.

    ARCHIVE
  4. 04
    2004 — 2015EDUCATION / MENTORING

    Technology education

    University Lecturer & Technology Educator

    Universidades e instituciones tecnológicas

    Teaching and mentoring in software engineering, web/mobile development, databases, networking, Agile and software testing.

    ARCHIVE

Contact / START

AVAILABLE FOR SELECTED PROJECTS

Have a software problem worth structuring correctly?

Share the business context, current constraints and what a successful release must accomplish. From there, we can turn uncertainty into an executable engineering plan.

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PROFESSIONAL NETWORKS
LOCATION
Guanajuato, México
MODE
ARCHITECTURE · FULL_STACK · QA