Senior Site Reliability Engineer and DevOps Leader
Resume:
Daniel M. Hartwig
******.****@*****.***
SKILLS: Strong understanding of POSIX (Redhat Linux, Solaris, BSD) Unix and firewall
configuration/installation. Proficient with C, Perl, NodeJS, javascript, python and shell scripting.
EDUCATION: State University of New York at Buffalo, Buffalo, NY 08/97-04/98
Westfield Academy and Central School, Westfield, NY 09/94-06/97
Rift Valley Academy, Kenya, East Africa 09/90-07/93
EXPERIENCE:
Ooma Inc, Sunnyvale, CA 08/11-11/25
Sr. Site Reliability Engineer
Ooma Inc. is a Voip provider offering free phone service nationwide. Products include
business/office phone systems, residential phone service, and home security all in the cloud.
I worked in the NetOps team managing all of Ooma’s regional data-centers, providing security,
high availability infrastructure services on thousands of machines. Responsibilities included
Software installation and maintenance; network and database configuration; access control for
developing, prototyping, and testing in both production and staging environments.
●Reported and filed bugs found on production systems and software
●Maintained Nagios monitoring system and built custom checks for APIs
●Installed Xen / KVM hypervisor for monitoring servers
●Validated cloud software for end-user products
●Maintained Cacti trending system
●Deployed client side firmware and server side software
●Wrote client side deployment software for en-masse upgrades
●Wrote software tools to manage maintenance windows and automate reports
Using shell, bash, perl, nodejs and python
●Created automatic backup scripts for all software
●Maintained and managed log servers
●Designed and developed Network Management System tools for NetOPS using HTML5, css, javascript, jquery, and nodejs
●Maintained MySQL as well as CouchDB and MongoDB servers
●Developed procedures for deployment of client and server side software
●Designed and developed customer support trouble shooting tools
●Created SOX linux user audit scripts for quarterly reports
●Trained new employees in NetOps department
Kakai/KnoInc, Santa Clara, CA 11/10-04/11
Software Engineer
At Kakai/Kno Inc, we designed, built and manufactured a dual-panel tablet book reader for the
Education Sector. I provided knowledge and experience of linux systems administration which
allowed developers to use an embedded linux environment.
Software on the tablet ran android based operating system with webkit open source software.
●Designed and developed PT1 station for production line in Foxconn
●Wrote software to install Linux OS on 49 simultaneous devices via USB
●Trained Foxconn engineers to use PT1 station
●Designed and developed FT0 station for Foxconn production line
●Wrote software for Tablet to update wireless firmware
●Trained engineers to manage FT0 station in production line
●Designed and wrote automated panel / LCD calibration station
●Trained engineers to run and use automated calibration station
Blacksun Technologies, LLC Los Angeles, CA 11/01-6/10
NOC Manager / Systems Engineer
This was a colocation facility located in a telco building.
I provided hands on installation of hardware as well as software.
●Customized and managed hundreds of Linux/Unix servers including SunOS, Solaris, and BSD Unix
●Performed OS installations and kernel optimizations for customer's Linux, FreeBSD, and Solaris servers
●Installed and configured Internet web server software including Apache, PHP, SSL, JSP, Tomcat, and Java servlets.
●Configured and managed DNS for customers running BIND
●Configured and managed e-mail servers using Sendmail and Postfix
●Administered Netsol, Verisign, and Godaddy for customer’s domain names
●Designed and developed trouble-ticketing software in Perl using MySQL Database
●Developed server side software including CGI scripts for customers
●Built local area network for NOC and office workstations
●Maintained local area storage using NAS and JBOD drives
●Installed and configured firewalls and routers
●Managed 24/7 staffed network operations center
Broadbridge Media, LLC New York, NY 8/00-9/01
Systems Administrator/ Lan Administrator
●Maintained servers including Apache, Qmail and DNS on Unix and Linux OSes
●Maintained Local Area Network using DHCP, NAT, and IP Masquerading
●Configured firewall using policies for LAN and Web security
●Monitored all network segments and computers in both datacenter and office
●Developed and programmed authentication for web interfaces
●Designed and installed backup system for the servers using DLT tape drives
InternetConnect, Torrence, CA 11/99-7/00
Systems Administrator
●Installed, maintained, and configured internet servers: Apache, Sendmail, and DNS
●Designed, developed, and debugged software for administration of accounts
●Remained on call 24/7 to insure maximum uptime possible
●Performed back-ups of the servers using tape drives
●Hardware used include Compaq DL380, SGI, Sun E450, Sun Sparc 20
ASI (Asia Source Inc), Piscataway, NJ 09/98-03/99
Technical Support, Computer Technician
●Assembled and built custom computers for end-users and individuals
●Installed software as requested by customers
●Tested defected computer components that were defective
●Helped maintain inventory of products in a warehouse
●Updated inventory data and customer’s accounts on AS/400 systems
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