Jon Fenner, Software Developer in Burlington, VT, United States
Jon Fenner

Software Developer in Burlington, VT, United States

Member since December 6, 2017
Jon has over 20 years of experience in leadership, web application design, development, and infrastructure using a variety of platforms, including Java, React, NodeJS, and MySQL. He communicates extremely well and works well both individually and as a team player or leader.
Jon is now available for hire




Burlington, VT, United States



Preferred Environment

Java, Jenkins, GitHub, Eclipse, Windows, React, React Native, AWS

The most amazing...

...thing I've coded is an artificial intelligence algorithm for detection of IRFPA images.


  • Senior Infrastructure Architect

    2009 - PRESENT
    Guidewire Software
    • Provided lead technical support, development, training of Guidewire applications in a variety of heterogeneous environments, including Microsoft Azure, Amazon Web Services (AWS), and Google Compute Platform (GCP).
    • Created a performance, functional, and security testing tool for the generation of large volumes of data to be used against the policy system. Generated 10 million policies and showed the application could perform as expected.
    • Provided support and development for customers' initial rollout of ClaimCenter as the integration architect.
    • Performed security analysis, PCI compliance, and ethical hacker testing of external-facing applications, including penetration testing, performance load analysis, and overall site security.
    • Integrated the back end with over 16 external systems, including COA, Google Maps, DVLA, CUEPI, HPI, and MIAFTR.
    Technologies: Amazon Web Services (AWS), Google Cloud Platform (GCP), Azure, AWS, Hardware Platform Interfaces (HPI), Google Maps, Certificate of Analysis (COA), Linux, Windows, Oracle, Microsoft SQL Server, Java
  • CTO/Principal Consultant

    2005 - PRESENT
    AuraQuest, Inc.
    • Served as the architect for a website which supported over 20 million hits per day, and for a 9-terabyte data warehouse design for 16 million users.
    • Performed big data analysis using artificial intelligence techniques, including neural networks, regression analysis, and intelligent algorithms.
    • Contributed to security analysis, ethical hacking, and security policy documentation for multiple clients and businesses across a variety of websites and infrastructures.
    • Developed a multi-tier Amazon Cloud-based front-end application for customer support of
    • Created and supported security policies and procedures across multiple cloud environments, including AWS, Azure, and Rackspace Cloud.
    • Developed an internal React Native application for EnchantaFrame digital art frame. This integrates with Google Compute Platform (GCP) and a Firestore back end for NoSQL database, authentication, and analytics.
    Technologies: Amazon Web Services (AWS), Google Cloud Platform (GCP), AWS, Apache Tomcat, REST APIs, MySQL, Node.js, React, Java
  • [Enterprise][US] React Native Engineer

    2020 - 2020
    Anthem - Digital (Reorg - Web & Mobile) (via Toptal)
    • Architected and Developed React Native application from scratch to support transition from native applications.
    • Worked on native bridge functionality between iOS/Android and React Native applications.
    • Supported onboarding of other development teams at Anthem for React Native development.
    Technologies: React Native
  • CTO

    2003 - 2005
    HotChalk, Inc.
    • Provided technical lead support for the development of an education-focused application for allowing schools' access to information and collaboration. This was a web-based Java application with a MySQL back-end database designed to support 8,000 schools and 16,000,000 students.
    • Led a team of remote developers to implement various portions of the education application.
    Technologies: MySQL, Java
  • VP Engineering

    2001 - 2003
    ProductFactory, Inc
    • Implemented a web-based project management application to provide collaboration and monitoring of projects.
    • Led a team of remote developers for testing and support of the application.
    Technologies: Microsoft SQL Server, Java, .NET, C++


  • Web Application (Development)

    Developed a multi-tier Amazon Cloud-based front-end and back-end application for customer support and account management of This application used a microservices design principal to maximize application availability across a wide variety of regions with minimal downtime. The front-end was a Node.js application and the back-end Java-based REST APIs.

  • Code for Vermont CVOEO Mobile App (Development)

    Worked on design and development for React Native EXPO app that utilizes Firebase for back-end functions, database, authentication, and storage and deploys to iOS and Android mobile platforms.


  • Languages

    SQL, JavaScript, Java, PHP, C#, Python, C++
  • Frameworks

    AWS HA, AngularJS, React Native, .NET, CakePHP
  • Libraries/APIs

    REST APIs, Node.js, React-JSS, React, React Redux, Google Maps
  • Platforms

    Amazon Web Services (AWS), Oracle, iOS, Windows, Eclipse, Linux, Android, Google Cloud Platform (GCP), Azure
  • Storage

    AWS S3, MySQL, SQL Server 2016, Oracle RDS, Microsoft SQL Server
  • Industry Expertise

  • Other

    Certified Ethical Hacker (CEH), CTO, Leadership, Financial Markets, Artificial Intelligence (AI), AWS, Certificate of Analysis (COA), Hardware Platform Interfaces (HPI)
  • Paradigms

    Agile, DevOps
  • Tools

    GitHub, Jenkins, Apache Tomcat


  • Bachelor of Science degree in Computer Science
    1986 - 1991
    University of Texas at Arlington - Arlington, TX


  • AWS Certified Solutions Architect - Professional
    NOVEMBER 2018 - NOVEMBER 2020
  • Certified Ethical Hacker
    SEPTEMBER 2017 - AUGUST 2020
  • AWS Certified Solutions Architect - Associate
    NOVEMBER 2016 - NOVEMBER 2020

To view more profiles

Join Toptal
Share it with others