David Martinka

Profile

Daily Linux user for 12 years. Motivated problem solver. Experienced Product designer. Seasoned Network administrator. Practical Software Engineer. Passionate Open Source advocate.

Experience

MediaVue Systems

Hingham, MA, USA

Lead Engineer

August 2022 - Feb 2024

  • Designed, maintained and improved Embedded Linux OS for SureVue Digital Signage products
  • Implemented, developed and maintained several complex, multi-stage CI/CD pipelines using Gitlab and Docker
  • Ported the ANM cloud application to Docker, separating it's components into multiple, logical containers (Reverse Proxy, Database and Application)
  • Developed new hardware models in the SureVue line of Digital Signage media player devices, optimizing the OS and Linux Kernel for each model
  • Bash
  • Python
  • Docker
  • OOP
  • VSCode
  • git-flow
  • Agile

Product Designer

June 2014 - August 2022

  • Participated in product design of SureVue Series
  • Devised a redundant fan-array system which became the standard for the SureVue series
  • Campaigned for moving from Windows Embedded OS to Ubuntu Linux based OS for SureVue line, resulting in improved reliability, reduced system overhead, massively extended service life, and reduced manufacturing cost
  • Bash
  • Powershell
  • System Administration
  • Agile

Support Technician

June 2011 - August 2018

  • Managed incoming support requests via phone and email
  • Identified the need for a ticketing system, deployed, configured and managed an on-premise instance of "Request Tracker"
  • Identified a manufacturing bottleneck, proactively devised a solution, implemented a network-based image deployment system which became an essential manufacturing component
  • Bash
  • Linux
  • Deployment

B Sharp Music

Providence, RI, USA

Electronic Repair Technician / Owner

April 2003 - Mar 2013

  • Opened and managed a retail guitar shop
  • Repaired and refurbished audio electronics, amplifiers, effects pedals, etc.
  • Managed inventory, supply chain, accounting and storefront
  • Handled customer requests, organized events and advertising
  • Management
  • Scheduling
  • Customer Service
  • Soldering
  • Troubleshooting

Education

ASc in Computer Programming (Incomplete)

Community College of RI

Sep 1996 - May 1997

Postponed to pursue a career in Music

References

Erik DeGiorgi

CEO at MediaVue Systems

  • +1 508 521 5247
  • erik@erikdegiorgi.com
  • Watertown, MA, USA

    • Brian Kane

    Co-worker at MediaVue Systems

  • +1 781 267 4977
  • bkane521@gmail.com
  • Hanson, MA, USA

    • Rob Conlon

    Co-worker at MediaVue Systems

  • +1 508 641 8294
  • conlonrobertj@gmail.com
  • Wrentham, MA, USA
    • photo of me

    Skills

      • Programming
      • Bash/Shell
      • Python
      • HTML
      • CSS
      • SQL
      • Javascript
      • C#
      • Powershell
        Hardware
      • EagleCAD
      • PCB Layout
      • Stress & Tolerance Testing
      • Compatibility Testing
      • Troubleshooting, Diagnosis
      • Repair & Refurbishment
      • Driver Development
      • x86, ARM & MCU Programming
        Developer Tools
      • Git, Git Flow
      • Docker (Build, Compose, CI/CD Instrumentation)
      • Gitlab
      • VSCode
      • Virtualization (Cloud & Bare Metal)
      • Serial Debugging
        System & Network Administration
      • Systemd & Sysvinit
      • Email Administration
      • Web Servers (Apache, Nginx, etc.)
      • Wired and Wireless Networking
      • Zero Trust
      • Distributed Systems
      • Digital Signage
        A/V
      • Audio Engineering
      • Video Editing
      • Re-Encoding & Transcoding
      • Streaming Video
      • Audio Circuit Design
        Misc
      • Linux Kernel
      • Jira
      • Netsuite
      • Software Packaging - Debian, Snap, Tinycore Linux

    Interests

    • Guitar
    • Parrots
    • Home Automation
    • Games
    • Cycling
    • Psychology