Miguel Chumillas

Senior Full Stack Developer & Tech Lead

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Senior Full Stack Developer and Tech Lead with 20+ years delivering enterprise solutions across healthcare, emergency services, eCommerce, SaaS, education, and film/media. Built and led delivery of 35+ client projects using React/Next.js, Vue/Nuxt, PHP, Node.js, and TypeScript. Experienced in technical architecture, team leadership, accessible UI (WAI-ARIA), RESTful APIs, and payment integrations (Stripe, PayPal, Square, Braintree). Founder of KredPilot and LetsGoBride.

Experience

INTERACTIVATED, DEC 2024 - PRESENT

Role: Fullstack Developer & DevOps

  • Vicrez eCommerce Platform — Fullstack Developer: Led development using Next.js, Medusa and Strapi.
  • Occasionally assist with recruiting, technical estimates and project planning.
  • Fitness Nation — Senior Backend Developer / DevOps: Node.js, Angular, JavaScript.
  • LetsGoCityTours — Fullstack Developer: Ongoing development, maintenance and technical support using AWS, Symfony and Angular.
  • Leqture — Fullstack Developer: Ongoing development, maintenance and technical support using Laravel, Inertia and Vue 3.
UD IBÉRICA, JUN 2023 - NOV 2024

Role: Team Lead / Fullstack Developer

  • Modernized the 116 emergency service from Java to Quasar (Vue Framework) with TypeScript, ESLint, Prettier, GitLab CI/CD, Vitest, Cypress and Docker.
  • Later entrusted with leading the team using Scrum, and helped onboard new members.
  • Assisted the backend team (Node.js, Oracle) with reverse engineering of the original app.
  • Reverse engineered their legacy Java application with limited documentation to enable incremental migration to Quasar and Node.js.
AXIS, 2002 - 2023

Role: Team Lead / Fullstack Developer

  • Joined Axis at its founding and spent over 20 years growing from frontend developer to Full-Stack Developer and Team Lead.
  • Led the delivery of 35+ client projects using React, Next.js, Vue, Nuxt, PHP, and cloud technologies.
  • Worked across architecture, frontend, backend, DevOps (AWS/Azure/Linux), and team leadership.
  • Delivered high-impact solutions across healthcare, emergency services, eCommerce, SaaS, education, and film/media.
HAIKUMEDIA

Role: Freelance Web Developer

  • princessmargaret.org — Web Developer: Migrated and maintained using CodeIgniter (PHP), HTML5, JavaScript, JQuery, SCSS and MySQL.
BRAINSTANTSOUP

Role: Web Developer

  • Delivered apps and websites using mainly PHP, HTML5, JavaScript, JQuery, CSS and MySQL.

Personal Projects

  • Founder of  KredPilot.com : A platform for agencies offering technical candidate assessment (coding tests, questionnaires) and reputation management. Powered by internal AI orchestration and secure Docker sandboxing isolation for reliable suite test execution. Built with Next.js 14, React 18, TypeScript, Drizzle ORM, PostgreSQL, Tailwind CSS, Stripe, Electron, Sentry and Zod.
  • Founder of  LetsGoBride.com : A Wedding Planning Platform I orchestrated end-to-end with Nuxt 3, TypeScript, Laravel, PostgreSQL, Stripe, Pinia, Tailwind CSS, Fabric.js, Strapi CMS and Docker.

Key Skills

  • Frontend: React (Next.js), Vue (Nuxt & Quasar), TypeScript, and accessible web development (WAI-ARIA).
  • Backend: Extensive experience building RESTful APIs and scalable applications with PHP (Laravel, Kohana, CodeIgniter) and Node.js.
  • Cloud & DevOps: Proficient with Docker, AWS, Azure, CI/CD pipelines, Git workflows, and Linux environments.
  • Databases: Experienced with MySQL, MongoDB, Redis, and Oracle.
  • Testing & Code Quality: Experienced with automated testing (Cypress, Jest, Vitest), clean code principles, and modern development practices.
  • Professional Strengths: Technical leadership, problem solving, mentoring, and continuous learning.
  • AI Experience: Experience integrating LLM APIs and AI capabilities into production web applications. Built AI-powered features with internal AI orchestration, including model selection and evaluation. Practical experience evaluating models for quality, cost, latency and performance. Daily use of ChatGPT, Claude and GitHub Copilot throughout the development process.

My Full Stack

ReactNext.jsTypeScriptJavaScriptVueNuxt.jsQuasarPHPLaravelNode.jsTailwind CSSSCSSDockerREST APIsMySQLAWSWAI-ARIAAPIsC#.NETKubernetesTerraformGraphQLDatabasesMongoDBRedisOracleCloud & DevOpsAzureCI/CDNginxLinuxGitGitHubGitLabTesting & QualityVitestJestCypressESLintSentryAIOpenAIClaudeLangChainFrontend & UIAngularStorybookPHP FrameworksSymfonyInertiaCommerce & CMSStrapiMedusaShopifyStripeSitecorePayPalSquareLegacy TechnologiesJava

Testimonials

"Miguel has been an outstanding backend developer and a valuable contributor to our team. He played a key role in major improvements to our infrastructure, helping us build a more robust, scalable, and secure architecture. His technical expertise and attention to quality were also instrumental in supporting our successful ISO certification process. He is reliable, proactive, and always willing to go the extra mile to ensure the success of the project. Moreover, he is very responsive and always ready to jump in and assist with what came up! Great experience!"

TOOLS & METHODOLOGY

  • Daily tools: VSCode, Slack, Figma, Jira, Asana, Teams, Postman, Docker Desktop, Windows Terminal / WSL, Chrome DevTools.
  • Web development: Responsive, accessible web applications (WAI-ARIA).
  • Methodology: Agile (Scrum).

EDUCATION & CERTIFICATES