Juan Diaz de Sandi, Software Developer in Mexico City, Mexico
Juan Diaz de Sandi

Software Developer in Mexico City, Mexico

Member since July 14, 2020
Juan is a self-motivated software engineer with over 10 years of professional experience in building web and mobile applications. As a creative thinker with a deep understanding of JavaScript, Python, React, Angular, Node.js, AWS, and APIs, he has a passion for software development and finding solutions to complex problems.
Juan is now available for hire


  • Versativa IT
    Amazon Web Services (AWS), AWS Lambda, Microservices, React Redux, React...
  • Global service 4 IT
    Amazon Web Services (AWS), AWS Lambda, React Redux, React, AWS API Gateway...
  • Gea IT Solutions
    Microservices, MySQL, Python, PHP, Node.js, APIs, AngularJS, CSS, HTML...



Mexico City, Mexico



Preferred Environment

Jira, Microsoft Teams, Slack, Visual Studio Code, Windows, Linux, MacOS

The most amazing...

...thing I'm proud of is my 10 professional experience and 5+ years of hands-on experience in the cutting-edge technologies such as React, Angular, and GraphQL.


  • Senior Full-stack Developer

    2017 - 2020
    Versativa IT
    • Developed the front-end website architecture and designed user interactions on web pages.
    • Developed back-end website applications, and created servers and databases.
    • Wrote and maintained reusable code with documentation and testing/QA at all stages through integration.
    Technologies: Amazon Web Services (AWS), AWS Lambda, Microservices, React Redux, React, AWS API Gateway, Apollo, GraphQL, AWS, Ruby on Rails (RoR), Ruby, Django, Node.js, Vue.js, Angular, JavaScript
  • Senior Software Engineer

    2015 - 2017
    Global service 4 IT
    • Developed and implemented software solutions based on client requirements.
    • Developed functional databases, applications, and servers to support websites on the back end.
    • Documented designs, issues, solutions, tips, and tricks as needed.
    • Developed unit tests and provides code coverage to accurately test business logic and functionality.
    Technologies: Amazon Web Services (AWS), AWS Lambda, React Redux, React, AWS API Gateway, Redux, Material-UI, Material Design, Google Material Design, Python, Django, AWS, APIs, HTML, Angular, Vue.js, Node.js, JavaScript
  • Full-stack Developer

    2011 - 2014
    Gea IT Solutions
    • Designed and created software solutions to solve pain points for various clients.
    • Strategized organizational direction on emerging technology platforms and communicate the effectiveness to executive stakeholders.
    • Researched, designed, implemented, and managed software programs.
    • Tested and evaluated new programs and API endpoints.
    Technologies: Microservices, MySQL, Python, PHP, Node.js, APIs, AngularJS, CSS, HTML, JavaScript
  • Web Developer

    2005 - 2010
    Blendwerk IT & Media
    • Contributed to the development of web applications using a variety of programming languages.
    • Evaluated, recommended, and installed software relevant to web development.
    • Worked alongside graphic designers for web design features.
    Technologies: MySQL, Bootstrap, jQuery, WordPress, CSS, HTML, PHP, JavaScript


  • Relentless Care (Development)

    As a full-stack developer, I was responsible for translating designs into reusable UI components, writing high-performance code, and functional test cases for the front end part. I mostly focused on building API endpoints for the back end.

    It was built with React and Node.js.

  • Trellis (Development)

    As a senior full-stack engineer, I was responsible for designing and building microservice architecture, communication between microservices with GRPC, and CI/CD implementation with CircleCI for the back end part. I also worked on translating business logic into UI/UX and API integration with the back end part.

    It was built with React, Node.js, and GraphQL.


  • Languages

    JavaScript, Python, GraphQL, ECMAScript (ES6), TypeScript, PHP, HTML, CSS, Ruby
  • Frameworks

    Angular, Material-UI, Express.js, Django, Django REST Framework, Serverless Framework, Koa, Flask, Ruby on Rails 5, React Native, Bootstrap, AngularJS, Redux, Ruby on Rails (RoR)
  • Libraries/APIs

    React, Vue.js, React Redux, Vuex, Node.js, REST API, Stripe, Objection.js, RxJS, Authorize.Net, jQuery
  • Tools

    AWS ECS, AWS CLI, AWS SDK, Slack, Jira, CircleCI, GitHub, GitLab, Bitbucket, Sequelize, AWS CloudFormation, GitLab CI/CD, Knex.js, AWS Fargate, Microsoft Teams
  • Paradigms

    Microservices, Microservices Architecture, Agile, Unit Testing, Serverless Architecture, E2E Testing
  • Platforms

    AWS Lambda, AWS EC2, Visual Studio Code, Amazon Web Services (AWS), MacOS, Linux, Windows, WordPress
  • Storage

    PostgreSQL, MySQL, MongoDB, AWS S3, AWS DynamoDB, Elasticsearch
  • Other

    AWS, AWS API Gateway, APIs, Google Material Design, Material Design, Apollo


  • Bachelor of Engineering degree in Computer Science
    2000 - 2004
    University of Bristol - Bristol, England

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