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Chatis Santos, Concurrency Developer in St. Louis, MO, United States
Chatis Santos

Concurrency Developer in St. Louis, MO, United States

Member since April 24, 2018
Chatis has over six years of experience developing and deploying web applications using Angular, React, Node.js, Scala, and Go. He has worked in teams of all sizes and has been able to further develop great communication and interpersonal skills.
Chatis is now available for hire



  • Linux, 10 years
  • JavaScript, 8 years
  • MySQL, 8 years
  • Angular, 5 years
  • Concurrency, 5 years
  • SQL, 5 years
  • Node.js, 3 years
  • React, 3 years
St. Louis, MO, United States



Preferred Environment

Mac, InteliJ, Git

The most amazing...

...projects I've worked on have been used for collecting scientific observations and using the data in models to predict business outcomes.


  • Developer

    2018 - PRESENT
    Becurity (Toptal)
    • Contributed to the development team at Monsanto in leveraging the latest technology to scale internal and external applications. Worked with the creative team to design and implement UI for the next version of the internal application suite.
    • Helped build and run the initial web platforms for and during their pre-ICO.
    • Developed an Application for clinical trial data analysis used by Biomerieux and its clients to record, track and validate clinical trial data.
    • Built a scientific search platform for Krypton-Consulting.
    • Developed a platform on AWS for RPCS. Helped build and deploy a client app for managing project quotes.
    • Developed Micro-services for 5 airports in Australia using Spring Boot.
    Technologies: Angular, React, Spring Boot, Scala, Node.js, Go, AWS
  • Web Developer

    2016 - 2018
    • Designed and built and web portal for Mazda using Angular and Java.
    • Created and developed a web portal for Honda using Polymer and Java.
    • Assisted in user experience design.
    • Implemented standards for user design and experience.
    • Build services using Spring Boot.
    Technologies: Angular, Java, Polymer, React
  • Web Developer

    2014 - 2016
    Biz Library
    • Built and deployed a learning management system.
    • Helped the team resolve production related issues.
    Technologies: React, .NET, Node.js
  • Web Developer

    2013 - 2014
    • Built and deployed a document management system.
    • Developed and deployed a scanning bureau.
    Technologies: Angular, .NET
  • Web Developer

    2011 - 2013
    Access Courier
    • Built internal applications for managing distribution routes.
    • Integrated our internal system with our partners to allow for automatic data-loading.
    • Developed mobile application to communicate route information to driver.
    • Created a package tracking and return system.
    • Supported the operations staff with technical needs.
    Technologies: jQuery, PHP, SQL


  • Data-enabled Agriculture Production (Development)

    In order to better predict yield and guarantee quality, Monsanto needed a way to collect data from the field and run intelligence on the data. I joined their team as a consultant and helped them develop a system for collecting scientific observations and use the data in models to predict business outcomes.


  • Languages

    SQL, JavaScript, Go, Scala
  • Frameworks

    Angular, Spring Boot
  • Libraries/APIs

    Node.js, React
  • Paradigms

  • Storage

  • Other

    UX, Concurrency
  • Platforms



  • Bachelor of Science degree in Computer Science
    2010 - 2014
    University Of Missouri St Louis - St. Louis, MO
  • AWS Certified Cloud Practitioner
    MARCH 2019 - MARCH 2022
    Amazon Web Services
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