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

CTO Developer in Burlington, VT, United States

Member since April 4, 2018
Jon has over 20 years of experience in leadership, web application design, development, and infrastructure using a variety of platforms, including React, Node.js, React Native, NoSQL, and MySQL. He communicates extremely well and works well both individually and as a team player or leader.
Jon is now available for hire

Portfolio

Experience

Location

Burlington, VT, United States

Availability

Part-time

Preferred Environment

React, React Native, AWS, Visual Studio Code, Node.js

The most amazing...

...work I've done has been with remote patient monitoring to help improve patient care and make healthcare more affordable and inclusive.

Employment

  • Chief Technical Officer

    2020 - PRESENT
    Community Wellness Technology
    • Architected and led the development of a remote patient monitoring platform using React, React Native, AWS, and MongoDB technologies.
    • Included Bluetooth integration of devices with React Native app for remote monitoring of patients.
    • Provided security leadership for all security and technology-related operations within the company.
    • Led a team to build out R&D projects based on the needs of patients, focusing on a variety of IoT, AI, Bluetooth Low Energy (BLE), and wearable technologies.
    • Developed IoT devices for Bluetooth integration of remote patient monitoring and integration with ESP32 for data collection.
    • Worked on the design of patented pill dispenser using ESP32 controller with ULN2003 stepper motors.
    Technologies: React, React Native, AWS, MongoDB, Fast Healthcare Interoperability Resources (FHIR), Healthcare, IoT Security, CTO, Security, Amazon S3 (AWS S3), AWS HA, Amazon Web Services (AWS), Artificial Intelligence (AI), DevOps, Node.js, AWS Lambda, MongoDB Atlas, Agile, Certified Ethical Hacker (CEH), Leadership, Hardware Platform Interfaces (HPI), RESTful APIs, TypeScript, System Architecture, Security Software Development, Architecture, APIs, Databases, Full-stack, Software as a Service (SaaS), Terraform, Team Leadership, Documentation, SaaS, Software Architecture, REST, Data Lakes, API Integration, Back-end, XML, Wearables, Web Development, Minimum Viable Product (MVP), Responsive Web Apps, Healthcare IT, Internet of Things (IoT), MacOS, Electronic Medical Records (EMR), Electronic Health Records, Agile Delivery, Engineering, Product Growth, B2B
  • 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 various websites and infrastructures.
    • Developed a multitier Amazon Cloud-based front-end application for customer support of Charter.net.
    • 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.
    • Developed a dual robotic arm system using Raspberry PI and Parallax controllers for harvesting specialty crops.
    Technologies: Amazon Web Services (AWS), Google Cloud Platform (GCP), AWS, Apache Tomcat, REST APIs, MySQL, Node.js, React, Java, SQL, Amazon S3 (AWS S3), AWS HA, Artificial Intelligence (AI), DevOps, React Native, Consulting, Agile, Certified Ethical Hacker (CEH), Leadership, Financial Markets, Hardware Platform Interfaces (HPI), RESTful APIs, TypeScript, System Architecture, Security Software Development, Architecture, APIs, Databases, Full-stack, Software as a Service (SaaS), Terraform, Team Leadership, Documentation, SaaS, Software Architecture, REST, Data Lakes, API Integration, Microservices, Back-end, XML, Web Development, Minimum Viable Product (MVP), Responsive Web Apps, MacOS, Raspberry Pi, Internet of Things (IoT), IT Security, Security, CTO, Engineering, B2B
  • Senior Developer

    2022 - 2022
    Spring Mobile Solutions
    • Created a proof-of-concept design and implementation for microservices integration with the existing SQL Server database in order to facilitate migration from the legacy system.
    • Explored, recommended, and demonstrated architecture implementation for microservices using serverless.com architecture.
    • Reviewed existing architecture to provide recommendations for performance, security, and maintainability improvement.
    Technologies: Microservices, Architecture, Node.js, Azure, SQL Server 2016, Payment APIs, Engineering, Fintech, B2B
  • React Native Engineer

    2020 - 2020
    Anthem - Digital (Reorg - Web & Mobile) (via Toptal)
    • Architected and developed a React Native application from scratch to support the 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, JavaScript, Node.js, Agile, RESTful APIs, TypeScript, System Architecture, Architecture, APIs, Databases, Full-stack, Terraform, Team Leadership, Documentation, Software Architecture, REST, Back-end, XML, Web Development, Minimum Viable Product (MVP), Responsive Web Apps, MacOS, Payment APIs, Engineering, Fintech, B2B
  • Principal Infrastructure Architect

    2009 - 2020
    Guidewire Software
    • Provided lead technical support, development, and training of Guidewire applications in various heterogeneous environments, including Microsoft Azure, Amazon Web Services (AWS), and Google Compute Platform (GCP).
    • Created a performance, functional, and security testing tool for generating large volumes of data to be used against the policy system. Generated 10 million policies and showed that 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, Amazon S3 (AWS S3), AWS HA, Consulting, Agile, Certified Ethical Hacker (CEH), Financial Markets, RESTful APIs, System Architecture, Architecture, APIs, Databases, Full-stack, Software as a Service (SaaS), Team Leadership, Documentation, SaaS, Software Architecture, REST, Data Lakes, API Integration, Microservices, Back-end, XML, Web Development, Minimum Viable Product (MVP), IT Security, Security, Payment APIs, Engineering, Fintech, B2B, Banking & Finance
  • AWS Security Architect

    2018 - 2019
    University of Colorado Boulder
    • Reviewed existing AWS architecture for security requirements and adherence.
    • Performed pen testing and security vulnerability analysis of website app.
    • Supplied security recommendations for website updates.
    Technologies: Web Security, IT Security, Security, Payment APIs, Engineering, B2B
  • CTO

    2003 - 2005
    HotChalk, Inc.
    • Provided technical lead support for the development of an education-focused application school 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.
    • Took responsibility for all aspects of technology within HotChalk, including infrastructure, CRM, databases, security, and backups.
    Technologies: MySQL, Java, Agile, Leadership, System Architecture, Architecture, APIs, Databases, Full-stack, Team Leadership, Documentation, SaaS, Software Architecture, REST, API Integration, Back-end, XML, Web Development, Minimum Viable Product (MVP), Security, CTO, Engineering, B2B
  • 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.
    • Provided support for investment acquisition and funding.
    Technologies: Microsoft SQL Server, Java, .NET, C++, Agile, C#, Leadership, System Architecture, Architecture, APIs, Databases, Full-stack, Team Leadership, Documentation, SaaS, Software Architecture, API Integration, Back-end, XML, Web Development, Minimum Viable Product (MVP), Security, CTO, Engineering, B2B

Experience

  • Remote Patient Monitor EHR
    https://communitywellness.com

    Designed, architected, and led the implementation of a remote patient monitoring electronic health record (EHR) system. This included a React/Node.js portal for clinical coaches, a React/Node.js patient portal, and a React Native/Node.js iOS and Android application for collecting vitals from patients via Bluetooth integration.

  • Charter.net Web Application
    http://charter.net

    Developed a multitier Amazon Cloud-based front-end and back-end application for Charter.net's customer support and account management. This application used a microservices design principle to maximize the application's availability across a wide variety of regions with minimal downtime. The front end was a Node.js application, and the back end was developed using Java-based REST APIs.

  • Code for Vermont CVOEO Mobile App
    https://github.com/codeforbtv/cvoeo-app

    Worked on the design and development of React Native Expo app for support of the Champlain Valley Office of Economic Opportunity (CVOEO) that utilizes Firebase for back-end functions, database, authentication, and storage and deploys to iOS and Android mobile platforms.

Skills

  • Languages

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

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

    Node.js, REST APIs, React, React Redux, Google Maps
  • Paradigms

    REST, Microservices, B2B, Agile, DevOps, Security Software Development, Fast Healthcare Interoperability Resources (FHIR)
  • Platforms

    Amazon Web Services (AWS), AWS Lambda, MacOS, Raspberry Pi, Oracle, iOS, Windows, Eclipse, Linux, Android, Google Cloud Platform (GCP), Azure, Visual Studio Code, Bluetooth LE, Firebase
  • Storage

    Amazon S3 (AWS S3), Databases, MySQL, SQL Server 2016, Oracle RDS, MongoDB, Data Lakes, Microsoft SQL Server
  • Industry Expertise

    Security, IT Security, Banking & Finance, Healthcare
  • Other

    AWS, Certified Ethical Hacker (CEH), CTO, Leadership, Consulting, RESTful APIs, System Architecture, Architecture, APIs, Full-stack, Software as a Service (SaaS), Team Leadership, Documentation, SaaS, Software Architecture, API Integration, Back-end, Responsive Web Apps, Minimum Viable Product (MVP), Web Development, Healthcare IT, Electronic Medical Records (EMR), Electronic Health Records, Payment APIs, Engineering, Product Growth, Fintech, Financial Markets, Artificial Intelligence (AI), Wearables, Agile Delivery, Hardware Platform Interfaces (HPI), IoT Security, Amazon API Gateway, Internet of Things (IoT), Web Security
  • Tools

    Terraform, GitHub, Jenkins, Apache Tomcat, MongoDB Atlas, Expo

Education

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

Certifications

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

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