End Point Team

Our team, headquartered in New York City, has developed, maintained, and hosted ecommerce and other web solutions since its founding in 1995. We combine web application development, database and hosting expertise with understanding clients' objectives to excel in client satisfaction.

Jon Jensen

Jon Jensen

Chief Technical Officer

With End Point Since: 2002
Location: Teton Valley, Idaho

Jon Jensen is an experienced software developer specializing in web applications, database schema design, and server clustering. He has been a core developer of the Interchange web application server platform since 2000.

Jon excels at networking, systems security, administration, and scalability of Linux and BSD Unix operating systems. He is also experienced with software packaging, version control systems, and multilingual software.

Senior Software Engineer for Red Hat from 2001-2002. Developer for the Red Hat ecommerce Suite and the Red Hat Intranet. Implemented and supported ecommerce websites for consulting clients.

Software Engineer at Akopia from 2000-2001. Contributed to Tallyman ecommerce software and combining it with MiniVend to create Interchange.

BA, Linguistics, Brigham Young University, Provo, Utah, 1998.

Red Hat Certified Engineer (RHCE), 2002.

Jon enjoys spending time with his family, reading, hiking, running, snowshoeing, and advocating free software. He is fluent in German.

Recent Blog Posts By Jon Jensen

PostgreSQL UTF-8 Conversion

March 9, 2010

It's becoming increasingly common for me to be involved in conversion of an old version of PostgreSQL to a new one, and at the same time, from an old "SQL_ASCII" encoding (that is, undeclared, unvalida... (PostgreSQL UTF-8 Conversion cont.)

PostgreSQL EC2/EBS/RAID 0 snapshot backup

February 23, 2010

One of our clients uses Amazon Web Services to host their production application and database servers on EC2 with EBS (Elastic Block Store) storage volumes. Their main database is PostgreSQL. A big be... (PostgreSQL EC2/EBS/RAID 0 snapshot backup cont.)

Safari 4 Top Sites feature skews analytics

February 13, 2010

Safari version 4 has a new "Top Sites" feature that shows thumbnail images of the sites the user most frequently visits (or, until enough history is collected, just generally popular sites). Martin Su... (Safari 4 Top Sites feature skews analytics cont.)

On Linux, noatime includes nodiratime

February 9, 2010

Note to performance-tweaking Linux sysadmins, pointed out to me by Selena Deckelmann: On Linux, the filesystem attribute noatime includes nodiratime, so there's no need to say both "noatime,nodiratime"... (On Linux, noatime includes nodiratime cont.)

dstat: better system resource monitoring

December 19, 2009

I recently came across a useful tool I hadn't heard of before: dstat, by Dag Wieers (of DAG RPM-building fame). He describes it as "a versatile replacement for vmstat, iostat, netstat, nfsstat and ifst... (dstat: better system resource monitoring cont.)