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Chris Bainbridge

Chris Bainbridge

Edinburgh, United Kingdom
Member since May 29, 2017
Chris is a senior Linux engineer with a PhD in machine learning. He specializes in software and system development, automation, and DevOps with extensive open source experience—contributing to the Linux kernel, Gentoo, Ubuntu, and Debian. His achievements include being the architecture lead of a Linux distribution, completing a P2V data center migration, and working with startups to develop an Android predictive keyboard and smartwatch.
Chris is now available for hire
Portfolio
Experience
  • Linux, 20 years
  • C, 20 years
  • C++, 20 years
  • Debian, 11 years
  • Ubuntu, 8 years
  • PostgreSQL, 6 years
  • Gentoo, 5 years
  • DevOps, 5 years
Edinburgh, United Kingdom
Availability
Part-time
Preferred Environment
Linux, Vim, Python, C, Debian, Ubuntu, Git
The most amazing...
...code I've ever written is a distributed robotics simulator which used genetic algorithms to evolve robots and neural networks.
Employment
  • Developer
    Open Source Contributions
    2000 - PRESENT
    • Tested, diagnosed, and fixed several difficult bugs in the Linux kernel.
    • Created a "forcepae" patch to run modern distribution kernels on legacy laptops for the Linux kernel.
    • Wrote IR-USB driver (Linux).
    • Am rated in the top 3% on the site Ask Ubuntu with over 230 answers contributed.
    • Wrote the highest performing "Fasta" benchmark in Golang for The Computer Language Benchmarks Game.
    • Diagnosed and provided fixes for many issues (Ubuntu, Gentoo, Debian etc).
    • Analyzed and fixed the infamous bug "Ubuntu Installer Bug Wipes Your Disk" (Ubuntu).
    • Developed, integrated and managed the release of the whole platform.
    • Created a virtual creature and neural network evolutionary system.
    Technologies: Linux, Python, Kernel, C, Ubuntu, Debian, Gentoo
  • Founder | Senior Engineer
    Travel Events Site Startup
    2015 - 2015
    • Developed a startup concept that combined event listings with travel information.
    • Created a website (Python, Django, jQuery, Bootstrap, Ansible).
    Technologies: Linux, Python, PostgreSQL, Django, Ansible, Bootstrap, jQuery
  • Senior Engineer
    eCommerce Company
    2014 - 2015
    • Created and managed an automated sales platform for selling digital goods on eBay.
    Technologies: Python, eBay API, Bottle, App Engine
  • Senior Engineer
    Flexpansion
    2012 - 2014
    • Carried out the development, build, and deployment of the Android app.
    • Developed the server-side code for analytics and problem resolution.
    • Improved the prediction accuracy by implementing personal training from the user's Gmail.
    • Decreased the app size by creating a dynamic language download system.
    • Integrated Google Speech recognition.
    • Implemented app analytics and the website (data, stats, graphs).
    • Increased the new user installation success rate by redesigning it based on gathered metrics.
    • Built and tested the new app and language pack releases.
    • Deployed releases on Google Play.
    • Fixed bugs and ensured device compatibility.
    • Created a new visual interface based on an artist's concept.
    Technologies: Android, Java, Linux, Python, App Engine, Bottle
  • Senior Developer
    Robomotic
    2012 - 2013
    • Developed a prototype smartwatch for the medical device field.
    • Created a system to segment and compress time series data.
    • Built and configured a bespoke Android AOSP.
    • Ported real-time algorithms to the Energy Micro Gecko platform.
    • Worked with various types of hardware: PandaBoard, APC Android Boards, and Raspberry Pi.
    Technologies: Linux, Android, AOSP, Embedded, Algorithms
  • Founder
    Delivery Startup
    2011 - 2012
    • Created an online system for person-to-person courier deliveries that solved the "customer not at home" problem.
    • Created a concept and a developed mobile-first web site (Django and App Engine).
    • Handled the Google Maps and PayPal IPN integration.
    Technologies: Django, App Engine, Google Maps, PayPal IPN
  • Software Developer
    Bloxx
    2009 - 2011
    • Created and migrated the development to a continuous integration build-and-test system.
    • Eliminated over 50% of the server estate by migrating a physical data center to VMware ESXi.
    • Acted as a system administrator and backed up the VM servers running 80+ virtual machines.
    • Created and launched a new product appliance, called Media Filter, as part of a small team.
    • Developed and maintained Linux packages and automated system installers.
    • Built a benchmark system to measure network throughput of the filter appliance.
    • Optimized throughput by implementing multi-threading and asynchronous I/O.
    Technologies: Linux, Ubuntu, Debian, Red Hat, CentOS, Python, C, PostgreSQL, Bash, Git, C++, Subversion, PHP, Zend, Dojo, KVM, ESXi, Buildbot, Jenkins
  • Architecture Lead
    Gentoo Linux
    2004 - 2008
    • Packaged and maintained 10+ applications including the Xen and Linux kernel.
    • Created LIRC—a based infrared remote control (IR-USB) driver for the 2.6 kernel.
    • Diagnosed and fixed kernel and driver issues.
    • Built and released ISO installer images.
    Technologies: Gentoo, Linux, Xen, Kernel, Ebuilds
  • Solutions Architect
    Edesix
    2005 - 2006
    • Installed, configured, and performance-tested bespoke Linux servers for clients.
    • Created an embedded modem factory test system using Linux Asterisk PBX.
    • Wrote an Asterisk driver for a soft modem with frequency resampling.
    • Wrote an embedded device driver for a Vodafone Radio-Pad modem.
    • Developed QA test processes and code for point-of-sale terminals.
    • Ported a point-of-sale embedded platform code to new ASIC hardware.
    • Discovered and characterized the ASIC bug.
    • Created a server-side management web application using the Echo2 Java framework.
    • Developed network problem diagnosis hardware using Linux and libpcap.
    • Developed Windows graphical embedded firmware updater in Python and wxWindows.
    • Created a secure Linux manufacture test system with GPG signatures for Chinese factories.
    Technologies: Linux, C, Java, Python, Subversion, Eclipse, GCC, PostgreSQL
Experience
  • Linux Kernel (Development)
    https://goo.gl/oX1FXy

    I diagnosed and fixed several difficult bugs (intermittent hangs and corruption due to race conditions, and more). I created the "forcepae" patch to run modern distribution kernels on legacy laptops. I wrote an IR-USB driver.

  • Ask Ubuntu (Development)
    https://goo.gl/oRMU4y

    On this site, I have contributed over 230 answers and am rated in the top 3% of contributors.

  • Distributed Evolutionary Robotics Simulator (Development)
    https://goo.gl/lxSuyY

    I created a distributed genetic algorithm robotics evolutionary system, incorporating a 3D robotics simulator (OpenGL graphics) and a neural network simulator.

  • Video of Evolved Robots (Other amazing things)
    https://youtu.be/YpK5AoDQ-V4

    A YouTube video of some of my evolved robots.

Skills
  • Paradigms
    Automation, DevOps
  • Platforms
    Ubuntu Linux, Ubuntu, Linux, Debian, Debian Linux, AWS EC2, CentOS, Android, Red Hat Linux, Fedora, Docker, Amazon Web Services (AWS), Google App Engine
  • Other
    Debugging, Research, Linux Kernel, Robotics, SSH, Neural Networks, Debian Packaging, Gentoo, LXC, AOSP, Google Play Store
  • Languages
    Java, C++, C, Bash, Go
  • Tools
    Git, Jenkins, Buildbot, KVM/Qemu, Ansible, AWS CloudFormation, AWS VPC
  • Storage
    ZODB, AWS RDS, MySQL, PostgreSQL
  • Frameworks
    Bottle, Django
  • Libraries/APIs
    eBay API
Education
  • PhD in Computer Science and Artificial Intelligence
    University of Edinburgh - Edinburgh, UK
    2001 - 2009
  • Bachelor of Science in Computer Science and Artificial Intelligence
    University of Edinburgh - Edinburgh, UK
    1997 - 2001
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