Colin Sheaff • 773.789.7675
3514 Arcadia Street • Evanston • Illinois • 60203


2/2010 – present, Northwestern University (

I am the current lead developer for all software initiatives, including the iLab and EcoCasting projects, and I work in conjunction with our partners at National Geographic on the software for the Watershed Dynamics project. I work in the Office of STEM Education Partnerships whose mission is supporting K-12 students and teachers by connecting them with the world-class STEM resources of Northwestern University.

Software Developer
  • Support and advise curriculum and content experts on technology decisions within department.
  • Implement new iLab client for ICP-OES instrument [Flex / AS3 / .NET / PHP]
  • Create series of models to support learning goals in EcoCasting project [NetLogo]
1/2009 – present, SpeakSake (

When this start-up lost their CTO, I was brought in to complete the website. I have been balancing the needs of an expedient launch against the functionality, security, and aesthetic requirements of the website and associated server infrastructure.

Website Technical Lead
  • Work closely with CEO and board members to guide and implement website.
  • Maintain website front end and administrative back end [PHP / MySQL / jQuery].
  • Incorporated an e-commerce payment system into the website and performed extensive security tests [PHP].
6/2007 – 10/2009, Chicago Software Solutions (

During my time at Chicago Software Solutions I worked in many different capacities, as outlined below. However, there were common threads throughout the experience. I lead multiple, simultaneous projects through their full life-cycles: from design and architecture to final product delivery. I worked directly with clients to translate their needs into solutions that met their budgetary, technical, and aesthetic constraints.

Lead Software Developer, Video Conferencing Project
  • Lead implementation team.
  • Designed solution which included:
    • Desktop application [Flex – Adobe AIR]
    • Desktop background service [Visual Basic.NET]
    • Web video viewer / chat client / document sharing service [Flex – Adobe Flash]
    • Administrative website [PHP / MySQL]
    • Chat plugin for media server [Java]
  • Successfully brought project in on time using three previously unused technologies (Flex framework, Wowza Media Server Pro, and Amazon EC2 architecture).
Lead Software Developer, Food Industry's Internal Business Solution
  • Migrated legacy Access application to web application [PHP / MySQL / jQuery].
  • Normalized and updated database to enforce data integrity.
  • Evaluated performance of new web application at up to 10 times faster than legacy application.
Lead Software Developer, Medical Data Capture Project
  • Designed and implemented multi-platform commercial software package for Windows and Mac OS X to synchronize with applications on both Palm and PocketPC hardware. [Access / Wise / FileMaker Pro / Iceberg / Satellite Forms].
  • Implemented custom Palm synchronization conduit for Mac OS X in Objective-C [Xcode].
Software Developer, Financial Trading Services Website
  • Maintained and upgraded website which supported an active user base in the thousands, required a 99% up-time during market hours to post current trade data, and processed hundreds of thousands of unique page requests per day. [C#.NET].
  • Created services to process nightly trade reconciliations.
  • Championed the usage of encryption and secure transmission protocols for the movement of sensitive financial information, which had previously been moved in plain-text over unsecured FTP.
1/2002 – present, Barclay Sheaff Consulting

Needing to maintain a flexible schedule, I started a consulting firm with a colleague. My responsibilities included creating websites, network management, hardware and software installation, as well as support for all the above.

IT Consultant
  • Started a web design and hosting business which, within two years, had several local, multimillion-dollar businesses as clients.
  • Created websites including:
  • Designed and implemented many private and commercial websites using PHP, XHTML, CSS, Adobe Flash, Adobe Photoshop, and FreeHand.
  • Installed and repaired hardware and software on personal computers, including but not limited to Windows XP, Windows 2000, Windows 2003 Server, Microsoft Office.
  • Taught computer classes and engaged clients to educate them during on-site visits.
11/2000 – 8/2001, Patterson, Gray & Associates (

My primary responsibility was the legacy database code [MUMPS] for a private medical practice. I updated and expanded the database functionality and integrated it with new desktop and web clients.

  • Worked in a small team using an iterative and incremental development approach.
  • Implemented new user interface in Visual Basic.
  • Supervised and mentored junior programmers.

Technical Summary


  • PHP
  • Python
  • MySQL
  • JavaScript
  • ActionScript
  • C/C++
  • C#
  • Objective-C
  • Java
  • ASP
  • Visual Basic
  • Pascal
  • CSS
  • LaTeX


  • Visual Studio
  • Flex
  • Eclipse
  • Xcode
  • NetBeans
  • Apache
  • IIS
  • Subversion
  • Git
  • Drupal
  • Joomla!
  • Adobe Photoshop
  • Adobe Flash
  • Microsoft SQL Server
  • Microsoft Office
  • Microsoft Access
  • FileMaker


  • Microsoft .NET Framework
  • jQuery
  • Django

Operating Systems

  • Windows XP
  • Windows Server 2003
  • Windows 2000
  • Mac OS X
  • Linux
  • AWS & EC2
  • HP-UX


Bachelor of Arts in Computer Science Kalamazoo College
Acquired college credit while still in high school.
William Rainey Harper Community College
Post-graduate studies in math and science.
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