Resumé of A. Charles Cazabon

Software & Systems Engineercharlesc@pyropus.ca
Regina, SK, Canada
306-545-2490

Objective

A challenging position involving the design, architecture, and implementation of interesting software or services, with open platforms and tools. The opportunity to solve complex problems and provide technical expertise.

Skills

• critical "soft" skills: excellent teamwork and customer focus; excellent verbal and written communications, including technical documentation skills; supervisory/mentoring experience; organizational skills, independent worker and experienced 10+ years telecommuter
• software and system design and implementation in various languages: dynamic/scripting (Python - 10+ years, JavaScript - 10+ years, Bourne shell - 10+ years, Perl, others), compiled (C/C++ - 10+ years, C#, MIPS and 80x86 assembly, others)
• databases: extensive 10+ years experience with RDBMSes (MariaDB/MySQL, PostgreSQL, sqlite, Oracle, SQLAlchemy, others), NoSQL (Redis), schema design, requirements analysis, optimization
• systems: primarily Linux/Unix (10+ years Linux, *BSD, others), realtime/embedded (VxWorks, embedded Linux, others)
• 10+ years web application development with Pylons, Flask, and other WSGI- and Python-based application stacks, including JSON-based RESTful APIs
• 10+ years experience designing and maintaining networking and communications infrastructure; expert in internet mail and DNS protocols and software (qmail, getmail, djbdns, BIND, others)
• low-level networking and high-level application protocols (TCP/IP, HTTP, AJAX/AJAJ, various RPC protocols and web-based RESTful API design and implementation, frameworks and packages (Apache httpd, mod_wsgi, Pylons/Pyramid, Django, Flask, others)
• wide general knowledge with ability to rapidly acquire domain-specific specialization needed for new projects

2009 - present: Independent Contractor

Current Clients

Experience First Design Inc.Saskatoon, SK, Canada

2017 – present Software & Systems Engineer

• technical lead designing and implementing Google Cloud-based Python service for web and mobile application for new startup
• ground-up design based around Google Cloud datastore key-value store, Google App Engine Python server code, Flask micro-framework, JSON-based RESTful API
• work remotely with Saskatoon-based mobile application developer and product manager

Other Recent Clients

Frigbot Pty Ltd.Osborne Park, WA, Australia

October 2017 – December 2017 Contract Consultant

• designed and implemented custom cloud-based system to process incoming email for PDF purchase orders from customers, validate order details against product catalog, and create orders/invoices in 3rd-party accounting system via JSON API
• similarly processed remittance advice notices and update accounts payable in accounting system

FATdrop Ltd.Letchworth Garden City, Herts, England

2009 – 2018 Software & Systems Engineer

• member of small technical team implementing the industry-leading internet delivery mechanism for new music promotion
• recommended and implemented workflow enhancements and development processes in line with industry best practices
• provided mentoring and Python expertise to other team members, and led design review and code review processes
• designed and implemented capacity expansion for server cluster
• seamlessly migrated services to new hardware and new data centres
• worked remotely, coordinating with other members of team via email, IRC/Slack, phone, intranet ticketing system and wiki

Previous Clients and Employee Positions

Government of SaskatchewanRegina, SK, Canada
Information Technology Office

2005 – 2010 Contract Consultant

• created new web application features and maintained web application framework for public government website and government telephone directory
• developed feature specifications in consultation with government stakeholders
• responded to customer issues and scheduled maintenance for problems
• worked remotely, coordinating with stakeholders via email and phone

Solido Design AutomationSaskatoon, SK, Canada

2005 – 2009 Design Engineer

• senior member of a design and development team creating the company's innovative electronic design automation (EDA) software, an industry-leading application suite for solving process variation problems
• lead designer/developer of user interface and data visualization components
• designed and implemented a flexible high-level architecture for data storage and visualization, supporting datapoint cross-probing between visualizations, arbitrary selection, and dynamic updating
• designed and implemented RPC mechanism for cooperation among multiple visualization interfaces, simulation engines, and central management process
• developed requirements for features in consultation with end users and field support engineers, for implementation by self and other team members
• mentored other developers in system design, best practices in development, and other areas
• co-inventor for a number of issued and provisional software patents
• worked remotely, coordinating with other members of team via VOIP phone, email, intranet ticketing system and wiki

QCC Communications CorporationSaskatoon, SK, Canada

2001 – 2005 Design Engineer

• researched customer environments, specified requirements for large, distributed systems, designed network architecture and implemented software systems to meet those requirements and specifications
• developed server-based applications running on Unix/Linux and Windows platforms, and on realtime embedded systems/OSes
• sample project: design, implementation, documentation, and maintenance of Linux-based WAN monitoring system connecting 500+ LAN networks for the Saskatchewan CommunityNet initiative

1999 – 2001 Systems Engineer

• designed, implemented, documented, and maintained information management and retrieval systems
• designed and implemented software frameworks for rapid, modular implementation of web-based applications and information systems, with a focus on Linux-based server applications
• sample project: design, implementation, documentation, and maintenance of a large-scale database-backed web “portal” consisting of a number of information management applications, used for a number of years as the Government of Saskatchewan’s main web site at http://www.gov.sk.ca/

1998 – 1999 Technologist

• reviewed software interface specifications and implemented in realtime systems such as network infrastructure devices
• sample projects: implementation of TCP/IP packet-handling code for embedded systems (large-scale routers, “layer-7 switches”, and other data-communications prototype devices) for Nortel Networks’ research and development divisions

Apress, IncorporatedBerkeley, CA, USA

2001 Contract Technical Reviewer

• reviewed manuscript of Dave Sill’s The qmail Handbook for technical accuracy and completeness
• tested all instructions, example code, and scripts for accuracy and correctness in multiple OS environments
• contributed changes and additional material to editorial content
• worked remotely, coordinating with author and editor via email, documents, and phone

Education

Palliser Institute (SIAST)Moose Jaw, SK, Canada

1995 – 1998 Diploma with Honours
Computer Engineering Technology

• Palliser Institute (SIAST) Instructors' Award (1998)
• SHL Systemhouse President's Award for Education and Technology (1997)
• Palliser Institute (SIAST) Achievement Award (1996 - 1997)

Other Achievements and Interests

Free software / open-source author. Most popular packages are:

• getmail, an award-winning, multi-protocol mail retrieval and delivery system
• memtester, a cross-platform userspace memory subsystem hardware diagnostic used by quality-control engineers at IBM, Sun, SGI, HP, and other hardware manufacturers, and by Grid Laboratories of Wisconsin, a high-performance computing cluster in the high-energy physics section at the University of Wisconsin
• pymsgauth, a secure message origination and authentication system

Interests include cooking, guitar, exotic pets, woodworking, furniture-making, free software development, volunteering with animal-welfare groups.

References

References are available upon request.