David CROSS

Perl (including Object-Oriented Perl, Moose, CGI, DBI/DBIx::Class and Template Toolkit)
Unix Shell Scripts (Bourne, C, and Korn Shells)
Javascript (Including Ajax)
Python, Ruby, PHP

HTML (including XHTML and CSS), XML (including RSS, Atom, XPath and XSLT)

Apache

Unix (Linux, Solaris), Windows

Git, Subversion

TCP/IP

Standard Unix tools (awk, sed, grep, etc.), OpenOffice.org, Movable Type

Perl Developer (Contract)

Gumtree.com, London
Working on a number of projects on the Gumtree.com web site. Worked on many enhancements and bug fixes. Designed and implemented a replacement for the image upload and storage system. Involved in projects to share Gumtree data with other companies. Acted as a Perl mentor to parts of the development team. Refactored pieces of legacy code in order to make it easier to write unit tests. Introduced Perl::Critic to the company. Worked with business and product team to tie down specifications.

System architecture was Perl and MySQL running on Debian servers with a mixture of Apache and lighttpd web servers. Perl processes ran under FastCGI. Development was carried out using Scrum.

Perl Developer (Contract)

LoveFilm, London
Working on a new streaming video service, concentrating particularly on the database access areas of the system. Pioneered the use of DBIx::Class in the company. Designed a way for DBIx::Class to fit in with existing database access methods. Advised other members of the in the use of DBIx::Class.

Developed APIs which sat on top of these classes and were used by front-end developers to create web pages. Working from high-level specifications written by business analysts and worked with front-end developers to determine exact requirements.

Blog Developer (Contract)

Guardian News & Media, London
The Guardian ran its blogs using Movable Type for several years, but during this period they moved them into their in-house content management system.

This role involved maintaining and enhancing the current blog platform (editing templates, changing navigation, implementing new performance tracking code). There was also some work supporting the team who were porting the blogs to the new platform. This included advising them on the structure of the Movable Type database and providing data dumps to enable them to test their processes.

In parallel with this, there was also work acting as a general "toolsmith" providing useful utilities to the development team. In particular, I built a system that parsed data files containing details of Cyclometric Complexity and made that data available to developers through a web-based application.

Developer (Contract)

UBS, London

Maintenance and development on a project which allows developers to reverse engineer a database schema from Oracle and Sybase database servers. The files generated can be stored under source code control and any changes made to these files can be applied to the database server in an intelligent fashion. This system is a strategic tool which is used by many of UBS's internal development teams to keep track of database schema definitions. The source code is approximately 100,000 lines of highly object-oriented Perl code. Designed and implemented a four-fold speed increase in Oracle processing.

Software Engineer (Contract)

BBC Future Media &Technology
Developer on an internal web service which distributes schedule information to many BBC web applications. Service written in Perl (using DBIx::Class and Catalyst), uses MySQL to store data and runs on Apache under Solaris.

Web Developer (Contract)

UBS, London
Developer in the storage management group. Writing web-based reports to monitor storage usage and measure group KPIs. Designed and built daily and weekly reports using Perl, Template Toolkit, Javascript and Ajax. Designed and implemented system database.

Developer (Contract)

BBC New Media and Technology, London
Developer working on various aspects of the BBC's main web site. The systems were implemented in Perl using an Oracle database running on Solaris.

Carried out maintenance and enhancements on a number of systems used to build the BBC's home page. Implementing replacement data feeds. Liaised with web producers responsible for content of web site. Acted as main maintenance developer on postcoder application.

Developer (Contract)

Guardian Unlimited, London
Developer working on various aspects of this award-winning web site using various technologies including Perl, Javascript, XSLT and Oracle running on Linux and Solaris. This included not only the public facing web site but also a number of internal content management tools.

Various fixes to browser-based applications to increase cross-browser compatibility. Work on an application to take XML data feeds from newspaper systems and convert them for web site use using XSLT. Various bug fixes and enhancements to Perl programs.

Senior Perl Developer (Permanent)

Outcome Technologies, London
Senior developer working on systems to gather data on the effectiveness of medical treatments. Systems built using Perl, Apache and MySQL on Linux servers.

Introduced Template Toolkit and Class::DBI to increase programmer efficiency. Designed new localisation framework. Line management of team of four developers. Developed system to move system configuration from code to data.

Developer (Contract)

KarmaDownload.com, London
Complete redesign and reimplementation of the web site for online record company.

Replaced old Windows/IIS/Access/Cold Fusion architecture with Linux, Apache, MySQL and Perl. Used Class::DBI to simplify database code. Automated and streamlined of business processes. Integrated systems with third party online payment system.

Developer (Contract)

Guardian Unlimited, London
Various tasks involved in the maintenance and development of GU's award winning website.

Designed and implemented of system to filter and load NewsML files into database using Xpath. Refactored various data feed systems. Mentored team members in Perl and Extreme Programming

Developer (Contract)

AMP, London
Support and enhancements on AMP's financial information website. Site implemented using Perl, Apache and Oracle on Unix platforms (Linux and Solaris).

Training and mentoring other developers in Perl and web technologies. Designed and developed system to extract statistics on the success of marketing campaigns.

Technical Architect (Permanent)

Bibliotech, London
Technical design and implementation for a web-based community aimed at schools. Site was implemented using mod_perl with Informix as the back-end database running on Linux and Solaris.

Integrated site with WorldPay ecommerce services using Perl over HTTP and HTTPS. Added RSS data feeds to site. Designed and implemented web-based interface to file storage area of site.

Developer (Contract)

Alaris Medical Systems, Basingstoke
Refactoring work on a web-based system for booking repairs to medical equipment. Perl scripts communicated with SAP using an XML interface. Resulting XML converted to HTML using XSLT. Refactored a number of Perl programs into one program driven by a configuration file.

Developer/Trainer (Contract)

Acxiom, London
This contract was split equally between working as a developer in one of Acxiom's development teams and devising and running internal Perl training courses.

Implemented a system to reconcile new contact data against existing contact records. Built a system to send emails automatically to users who had registered on a web site. Designed and implemented a rule-based system to process the responses from questionnaires

Developer (Contract)

Sportal.com, London
Working in the feeds team of this sports web site. The feeds team handled both incoming and outgoing data feeds.

Developer (Contract)

Credit Suisse First Boston, London
Working in the European Financial Control Group on a batch process which made various trade and position information available to Financial Controllers.

Webmaster/Developer (Contract)

Industrial Bank of Japan, London
Trialling the use of intranet technology within the bank. This role involved a large amount of high level architectural work as well as installing and configuring a web server and implementing various systems using it.

Support Team Leader (Contract)

Fidelity Investments Ltd., Kingswood, Surrey
Leading a team of three people which acted as second-line support for Fidelity's customer-facing web site. Technologies included Perl, Sybase, HTML, XML and Java Servlets.

Developer (Contract)

QXL Ltd., London
Various tasks as part of a major redesign of QXL's web site.

Developer (Contract)

Credit Suisse First Boston, London
Working with large Sybase database used for Equity Research.

Developer (Contract)

SBC Warburg, London
Working with a large, globally replicated Sybase database containing the bank's major data warehouse.

Team Leader (Contract)

Nomura Research International, London
Recruiting and leading a team of four developers working on the design and development of a system to produce Middle Office reports from a Sybase database.

Developer (Contract)

Banque Paribas, London
Design, development and maintenance on a back-office accountancy system taking data from various internal and external feeds and reformatting it for use in Dodge.

Senior Analyst Programmer (Permanent)

The Walt Disney Company Ltd, London
Design, development and user support on a retail decision support tool.

Software Engineer (Permanent)

Comtext International Ltd, London
Designing and developing GUI front end to Telex/Fax/Email service using C++ cross platform development tools (XVT) and Visual Basic.

Programmer/Senior Programmer (Permanent)

Learmonth & Burchett Management Systems Plc, London
Design and development largely based around the data modelling part of a CASE tool.

GCE 'O' Levels in Mathematics, English Language, English Literature, Physics, Chemistry, German and History
GCE 'AO' Level in Geology

GCE 'A' Levels in Pure Mathematics, Applied Mathematics and Physics