Christopher Armstrong

Software Development

I work with a team of developers on Landscape, a system for managing deployments of multiple Ubuntu machines. Technologies utilized are Python, Zope3, Twisted, and Postgres.

Release Management and Software Development (volunteer)

I work with a team of developers on Twisted, an Open Source networking infrastructure.

• Collaborate with the team to design, implement, and integrate many parts of the Twisted system, including a web application server, a chat service, a remote-object protocol, an online world simulation framework, and an administration interface.
• Manage releases of the software: This includes testing, developing packaging automation tools, and deploying the software on the main twistedmatrix.com server.

Software Development

Worked with a team of developers on the company's core product, a document management system for small to medium sized organizations. This product consists of a management UI written in PHP, a backend server written in Python utilizing Twisted and MySQL, and Zope/Plone Products for higher-level applications and customer-specific applications built on top of the document manager. I was involved in the maintenance of all parts of this system, and have done significant development on the Plone and Twisted-based code.

I was also the lead developer and maintainer of ConveyIT, a web application for facilitating easy electronic land conveyancing for Tasmanian solicitors and real estate agents. Initial development was carried out with a small team of 3-4 developers over 4 months, after which it was cut back to only myself unless major new developments were taking place. I also served as technical contact for the client, responding to support issues and implementing new features. Technologies utilized were Python, Twisted, Nevow, Atop, and OpenOffice.

Software Development

Developed and maintained an anti-spam service with a small team. This involved protocol implementation, server infrastructure, and heuristics for deciding whether a given host is a spammer or not. Protocols involved were DNS and SIQ (Server Index Query). Technologies utilized were Python and Twisted.

Training

Gave three full days of training to programmers at Ypsilon on the Twisted networking framework. Topics covered were protocol implementation, components, Deferreds, Twisted Cred, Perspective Broker, twisted.web, and XML-RPC.

Software Development

Implemented an automated test-running system to facilitate software testing at the Fresno County Office of Education. Technologies utilized were BuildBot and MaxQ, with improvements made to each.

System Administration

Set up and maintained two servers running Debian GNU/Linux for the use of Divmod in the development, testing, and deployment of Quotient and other software. Maintained email servers (Exim), domain server (Twisted Names), CVS, Asterisk PBX, and various other services.

Software Development

Helped the team to design and implement the PanGalactic Engineering Framework. Integrated the repository (application logic and relational database) with various clients, including a Web UI and a GUI thick client. Technologies utilized were Python, PostgreSQL (relational database), Twisted's Woven (web framework), and wxPython (GUI toolkit).

Software Development

Worked independently on a tool for validating digital coursework data files. The GUI tool ensures that files in a wide range of formats meet the quality standards of the Office of Education. Technologies utilized were Python, Twisted, and Tkinter.

Software Development

Worked with a team of developers on an open source, component-based Content Management/Wiki System. Redesigned the initial version to utilize Twisted's web MVC framework, Woven.

Web Development

Designed and maintained web sites for the company intranet and Internet, gave support to other Web Designers within NOVA, and explored enhancements to the navigability of existing web sites. Technologies utilized were HTML, Javascript, Python, and ColdFusion.