TTK Ciar
UNIX Software Engineer
email: ttk2@ciar.org
Skills:
Programming Languages
Perl
C
C++
SQL
Javascript
Assembly language: 80x86, Z80, MIPS, DEC Alpha, VLIW
Pascal, Object-Oriented Pascal, Modula-2
Operating systems
Unix: Solaris, Linux, FreeBSD, HPUX, IRIX, SCO OpenServer
Embedded Systems: Lynx, eCos, various proprietary
Others: OS/2, MS-DOS, CP/M
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Solution Skills
Data Warehousing Administration and Technologies
High-Availability Cluster Administration and Technologies
Load-Balancing Cluster Administration and Technologies
High-Performance Cluster Administration and Technologies
MySQL and PostgreSQL DBMS, Perl DBI and DBD's
Nagios datacenter monitoring configuration and plugins
IPVS and Keepalived service failover system
Client/server programming with BSD sockets
Pthreads (POSIX multithreaded) programming
Qmail email server configuration
DHCP and BIND9 configuration
Webcounter front- and back-end technology
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Industry Experience:
The Internet Archive (San Francisco, CA) UNIX Software Engineer 2003 - Present
Technical lead for PetaBox Project. Drove initial development of a large-scale data storage cluster (the PetaBox) to replace irreproducible legacy data cluster, allowing The Archive to rapidly establish new data clusters in other countries and scale expansion of data capacity. The project goal was to design and implement a low-buyin, low-TCO, high-density storage cluster based on open-source technology. The PetaBox architecture is now standard for all Archive datacenters.
Technical lead for Collections group's QA team of four technicians.
Developed software in Perl for detecting, quantifying, and correcting data skew between The Archive's three petabyte-class data warehousing clusters in San Francisco and Amsterdam, proactively preventing data loss and providing Operations with data consumption forecasts necessary for the intelligent procurement of new data storage capacity.
Developed software for automatically generating Nagios cluster monitoring configurations, eliminating human error from configuration synthesis and freeing system administrator work-hours for other tasks.
Developed Nagios plugins in Perl for monitoring system temperatures, disk capacities, and active process profiles.
Developed software in Perl for scalable configuration-driven detection, correction, and monitoring of operational errors on large (approx 1,000 nodes) Linux-based data storage cluster, allowing for rapid and informed IT response to bottlenecks and failures as they occur within the data cluster.
Developed administrative tool with web-based UI for analysis, curation, and problem identification of user-submitted data on public PetaBox system, resulting in recovery of otherwise lost user-contributed data.
Developed database schema and Perl module implementing access/update API for Archive inventory system, tracking servers, switches, major subcomponents (CPU, disk, NIC), physical locations, and roles within the cluster on PostgreSQL database.
Configured and deployed IPVS/Keepalived for load balancing and transparent failover within archive.org web server pool, enhancing the capacity and reliability of Archive web services while reducing administrative demands.
Hardpoint Intelligence (Sebastopol, CA) CTO, Co-Founder 2003 - Present
Co-founded business with former VP of The Sausalito Group (TSG) to continue supporting TSG's Asia-based contracts following the dissolution of TSG.
Redeveloped all necessary software to duplicate functionality without compromising intellectual property claims.
Procured colocation facilities and populated them with web, database, and mail servers. Configured and installed server hardware and software.
The Sausalito Group (Sausalito, CA) Senior Software Engineer, Senior System Administrator 2000 - 2003
Developed and administrated hardware, software, network, and database technology for web-based international and multilingual demographic surveys (english, japanese), including database abstraction interface library for transparent scaling of back-end to distributed database architecture.
Developed software for automated rapid and reliable synthesis of customized and dynamic web-based surveys, demographic analysis, and real-time dashboard reporting.
Flying Crocodile (Seattle, WA) Senior Software Engineer 1999 - 2000
Developed massively multithreaded middleware for caching and distributing database access and other computational workload across cluster of FreeBSD3.2/x86 workstations for proprietary demographics tracking software under heavy load (15 to 25 million hits per hour, sustained).
Developed distributed and multithreaded software for tracking and reporting web site access patterns with failover and load-balancing capabilities.
Developed system monitoring scripts in perl for generating reports on distributed system activity and performance bottlenecks.
Cygnus Solutions (Sunnyvale, CA) Compiler Tools Engineer 1996 - 1999
Developed GNU toolchain: C compiler, assembler, and binutils.
All development targeted multiple host platforms using a single code base.
Worked on related projects:
- Acted as technical laison with Cisco's tool department,
merging Cisco's enhanced gcc with mainline gcc.
- Provided on-site support to Cisco's tool group.
- Developed optimized library routines for proprietary
128-bit SIMD-capable MIPS architecture used in PSX2.
- Developed optimized glibc code fragments for customers'
proprietary embedded systems.
- Developed C and Perl software for providing controlled
customer access to our PRMS database via web interface.
- Fixed 41 user-reported errors in gcc and gas code.
- Enhanced gas peephole optimization for embedded targets.
- Added PE IMPORT section support to dlltool.
- Corrected m68k-elf toolchain to comply to the V.4 ABI.
- Acted as technical laison to Cygnus' documentation and
front-line support departments. Also gave educational
presentations describing our products' operations.
First Pacific Networks Network and Embedded Systems Software Engineer 1995 - 1996
Designed software tools to interface with proprietary telecommunication devices, simulate network traffic, and assess product performance.
Developed system software for proprietary embedded systems -- protocol stacks, power management, and remote configuration.
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| Full work history, code samples, references are available upon request. |
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