Curriculum Vitae

Diego Castillo.

Lead Frontend & Full-Stack Developer

7+ years architecting high-performance web applications and leading technical teams. Scaled engineering departments up to 15 developers. Currently researching AI automation in agile development as part of a Master's thesis.

Contact
🇪🇸 Spanish — Native 🇺🇸 English — Intermediate
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01 Skills

Frontend
ReactNext.jsAstroTypeScriptJavaScript ES6+Tailwind CSSVue 2QMLUI ArchitectureSEO
Backend
Node.jsExpress.jsNestJSPHPLaravelCakePHPStrapiRESTful APIsMVC Architecture
Cloud & Infra
AWSDeploymentsProxiesVPNsServer-Side Config
Data & AI
PythonPandasWeb ScrapingData PipelinesSQLMySQLBusiness IntelligenceNLPProlog
Architecture & Practices
Software ArchitectureTeam LeadershipScrumAgileIntegration TestingUI Component TestingSecurity GuidelinesAPI Integration
Enterprise & Web3
ERP SystemsCRM SystemsInventory ManagementMulti-Tenant ArchitectureWeb3Crypto-Wallet IntegrationBlockchain

02 Experience

ConLuc Corp. · México
Frontend Lead
Oct 2025 – Present
  • Direct and manage the Frontend Department: core team of 6, scales to 12 cross-functional engineers during major module rollouts.
  • Architect modern web applications, define Definitions of Done (DoD), and establish development and security guidelines.
  • Partner with Backend Lead to design bulletproof API integration strategies that prevent breaking changes in production.
  • Enforce integration testing and atomic UI component testing for zero-downtime deployments.
TagWizz · Ciudad de México, México
Software Engineer Senior
Apr 2024 – Jun 2026
  • Architected a white-label LMS using React and NestJS — same core deployed under two distinct UI designs for corporate hospitality.
  • Co-developed an internal AI-driven video analysis tool for game QA; built a timeline-based video editor UI in QML + Python.
  • Maintained and upgraded legacy Laravel/PHP platforms: security fixes, framework migrations, multi-language SEO.
  • Managed and deployed front-end builds on AWS using proxies, VPNs, and server-side configurations.
Freelance · Remote
Full Stack Developer
Jun 2019 – Jun 2026
  • Architected and deployed ERP and inventory management systems for retail brands: multi-platform catalog sync, stock logic, warehouse zoning (CakePHP, Node.js, React).
  • Delivered web applications for SMEs using React, TypeScript, Next.js, Astro, Node.js/Express, PHP, and Strapi headless CMS.
  • Engineered automated data pipelines and web scraping tools in Python for multi-platform financial data and market intelligence.
  • Developed secure plugins and extensions for production admin software, expanding business logic without disrupting existing systems.
TagWizz · México
Software Engineer / Full-Stack Developer
Jan 2023 – Apr 2024
  • Integrated decentralized workflows and crypto-wallet connections into gaming platform front-ends, adhering to strict blockchain security standards.
  • Developed CRM and management views in Vue 2 for a legacy "Pay-for-Game" platform published on the App Store.
  • Built high-performance static and dynamic web applications for corporate clients with advanced SEO from scratch.
  • Deployed applications and configured AWS environments for optimal client-server communication.
TagWizz · México
Web Developer
Jun 2022 – Jan 2023
  • Engineered the front-end architecture for a high-traffic SMS RP data system processing and displaying video game analytics.
  • Partnered with the Backend Team to design and integrate scalable APIs using NestJS.
  • Coordinated task delivery in agile teams, aligning front-end components with back-end logic — accelerated internal promotion.
  • Built foundational AWS experience: microservice consumption and secure server access via VPN/proxies.
Carbones del Zulia S.A. (CARBOZULIA) · Venezuela
Software Development Engineer
Jan 2022 – Jun 2022
  • Designed and deployed a custom internal web app in CakePHP to automate large-scale technological asset inventory management.
  • Streamlined corporate workflows via high-performance web features, reducing manual overhead and improving data tracking accuracy.
  • Applied MVC architecture to upgrade internal platforms — secure, stable, and maintainable codebases.
Disdibuca · Venezuela
IT Manager
Jan 2018 – Dec 2018
  • Administered and optimized relational SQL databases for high availability and integrity across core corporate environments.
  • Maintained critical workstations and infrastructure for Finance, Logistics, and Operations departments.
  • Led internal digital transformation: evaluated hardware/software needs, upgraded legacy systems, implemented modern solutions.

03 Education

Universidad Dr. José Gregorio Hernández · Maracaibo, Venezuela
Master's Degree — Gerencia de Telecomunicaciones
Project Management · AI in Agile Development (thesis)
Jul 2023 – Present
Universidad Dr. José Gregorio Hernández · Maracaibo, Venezuela
B.S. — Ingeniería de Sistemas
Systems Engineering
May 2017 – Apr 2022

04 Highlights

Certification

Introducción al Desarrollo de Sistemas Expertos y Lenguaje de Programación PROLOG

Achievement
🥈 2nd Place

Maracaibo Innova — Pioneered an AI-driven NLP predictive sales and management software.

05 Publications

Artificial Intelligence in the Software Development Life Cycle
Diego Armando Castillo Hernandez, José Andrés Hernandez Chirinos

Demonstrates that tools like GitHub Copilot and ChatGPT can accelerate coding speed by up to 55%, reduce developer mental fatigue, and automate repetitive tasks — while concluding AI still requires human oversight for complex problems.

Industry 4.0 vs Industry 5.0: Emerging Technologies in the Digital Transformation
Diego Armando Castillo Hernandez, José Andrés Hernandez Chirinos

Descriptive analysis of the transition from Industry 4.0 to Industry 5.0, exploring how collaborative robots, sustainability, and human-centered design expand — rather than replace — the automation achievements of the previous era.