Tim’s Resume

This is the summary version of my resume.  A detailed chronology of my experience can be found on my personal website (interactive and easier to navigate) and on my Experience Details page (traditional format but boring and a cure for insomnia).

I have a successful track record in the design and implementation of cutting edge systems and applications. Am able to combine market / financial research with technology to establish sound and profitable business strategies. Accomplished manager with International experience spanning the USA, Europe and Asia. Current work focuses on the Jade technology projects (Unified Security Framework and Distributed Web Services) and the Jade prototype project sites (see below).

About Tim

Am passionate about building usable real world solutions. This applies to electronics, systems, network engineering, education and business.  It’s all about balance! I’m a US citizen and have permanent resident status in both Hong Kong and the Philippines. I work well with people of most backgrounds and have worked and resided in the USA, Germany, Hong Kong, Macau, Japan, China and the Philippines.

Electronic and Software Design

I started my career building microcontroller solutions based on the Intel 8748 (assembly coding plus circuit design) and then expanded to systems and network design. Building technology companies and solutions remain at the heart of what I do. I’m currently technically involved in the areas of network security and distributed systems, IoT, VoIP, and the prototyping of several potential business sites. My IoT work is both hardware and software incorporating microcontrollers and small systems based on the Raspberry Pi, Arduino series, Pico, ESP32 and others.

System and Internet Engineering

I Moved to the Silicon Valley in the early 80’s working for startups building the first microprocessor based Unix computers and later the first company building commercial TCP/IP solutions (the underlying network components running the Internet). After that I worked for the Lawrence Livermore National Laboratory where we did applied research and development in Internet applications (mainly email based).

After LLNL I did general network consulting and started my own company, International Messaging Associates, where we built the first MIME compatible electronic email gateway solutions on the market. Our customers included many of the fortune 500 companies and large government organizations. Also worked with International standard organizations including IFIP, the IETF and NIST during my LLNL and IMA periods.

In 2004 I established Jade Networks to provide modern designs and solutions for the security, monitoring, and managing of enterprise networks. Services are run out of our Hong Kong data center. Hosting services are provided to select clients for email, DNS, VoIP and Web. We also use these services to prototype potential new businesses. Information about these projects, the Jade Unified Security Framework and our Distributed Web Services work can be found on my Projects page. During this time I also helped organize the consortium and built the new Macau Name Registry (failover across 2 datacenters).

Writing and Education

Extensive experience with technical writing, training and tutoring through my IT work. While running IMA this occupied well over half of my workload for several years. This experience was extended starting in 2010 when I started to tutor students (primary age through adult) resulting in adding direct teaching and educational/learning systems development to my systems engineering work. Comprehensive information about my writing, including samples can be found on my English Language Writing Services page.

Functional Areas of Expertise

Applications / Tools: Sugar CRM, Sendmail, Postfix, Mailman, Kannel, Apache, NGINX, Gluster, Galera, phpBB, ipchains /iptables, Squid, AltiWare (AltiGen), TeleVantage (Artisoft), Asterisk, FreePBX, Jabber (XMPP), WordPress, BIND, Zabbix.

Standards: All Internet email related, most SNMP related, routing (BGP, EGP, etc), DNS, X.400, X.500, ASN.1, SMS, LDAP, HTML 5, CSS 3, DHTML, XHTML, XML, DOM, Voice over IP (SIP/IAX/SCCP), SMPP.

Operating Systems: Most major Unix (and related) releases over the past 40 years, including many current Linux distributions (Ubuntu, Fedora, RHEL, OpenSUSE, CentOS, Mint, Raspbian), Microsoft (through Windows 11), Citirix Metaframe 1.8.

Office Tools: Microsoft Office, LibreOffice, FrameMaker, Acrobat, PhotoShop, GIMP, GnuCash, DaVinci Resolve.

Systems: Many over the years from 70’s era minicomputers (UNIX, DEC, VM), through most modern Linux (x86, ARM, etc). Also work with popular microcontrollers such as the Arduino series, Pico W, ESP 32, and others.

Technologies

Internet: DNS / DHCP, Email (all), IP Routing, LDAP, VoIP
Languages: Awk / Lex, C/C++, HTML 5 / CSS 3, Javascript, Jquery, Perl, PHP, Python, Scratch, Unix / Linux Shell
System: Database / SQL, H/W Architecture, IP Firewalls / Security, Linux / UNIX, Network Architecture, Network Management, Network / System AI, SIEM
Web: Moodle, WordPress

International Standards

• T. Kehres, Message Handling Systems Interoperability Problems Between 1984 and 1988 X.400, Message Handling Systems and Distributed Applications, pp 553-561, North Holland (1989)
• T. Kehres, M. Westbrook, MHS Gateway Working Group Report, Message Handling Systems and Distributed Applications, pp 551-552, North Holland (1989)

Education

Bachelor of Science, Electrical Engineering
Minor in Computer Science
Purdue Univeristy, West Lafayette, Indiana