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Senior/Principal level System Administrator (20 years experience).I have always worked in high-uptime environments and I am used to considering fault tolerance and eliminating single points of failure in any design work.I'm used to getting the best technology for the lowest reasonable investment, and eliminating needless waste in an IT operation.My current professional goals are to continue to advance the art of systems administration through solving the next set of challenging problems that the market will throw my way.Specialties: Unix, Linux, FreeBSD, NetBSD, very large-scale server architecture and management, Perl, Shell, Python, some C, some Ruby, some Java, host and network security, reverse engineering, systems monitoring.
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Senior Information Security EngineerApple Jul 2016 - PresentCupertino, California, Us -
Senior Siri Runtime EngineerApple Jun 2015 - Jul 2016Cupertino, California, Us -
Senior Operations Engineer - Infrastructure OperationsTwitter Apr 2012 - Jun 2015San Francisco, Ca, UsMy team manages the underlying services that allow a large-scale installation to function; DNS, configuration management, monitoring and alerting, security, access management, LDAP, plus a swathe of general unix knowledge. We touch peripherally or are involved with just about every aspect of running a large and complex set of environments.We provide creative solutions to difficult problems. -
Systems ArchitectYahoo! Dec 2008 - Apr 2012Sunnyvale, Ca, Us -
Senior System AdministratorYahoo! Nov 2005 - Dec 2008Sunnyvale, Ca, Us -
Senior System AdministratorGeminimobile Feb 2003 - Nov 2005Gemini is a small startup (less than 90 people at the time of writing this document - Sept 2005), located in San Mateo, USA and Tokyo,Japan.They are a team of highly competent and experienced developers producing mailserver and gateway software for the mobile telecoms industry.I was invited to join Gemini as they needed a senior level administrator with strong Linux experience. They also needed someone capable of producing customer quality code to release with their software. My mandate on the development side was to help make the software operational for the customers, and productise it in such a way that it was palatable by customer operations staff.On the systems side I setup the infrastructure almost from scratch, installing and configuring systems, storage and networks as appropriate.This was a very nice opportunity for a systems person, the chance to do it right from the beginning.
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Unix ArchitectInktomi Apr 2000 - Jan 2003UsDesign, develop and implement systems strategy at all levels, from specifying systems hardware and software, through installation, testing and deployment to the entire company worldwide. Perform complex tasks that require the systems knowledge and experience of a senior administrator. Perform daily tasks that require quick response, technical understanding, and prompt intelligent engineering fixes. Write computer code in a variety of languages and environments to work reliably and consistently and with fault and failure tolerance. -
Senior Security ConsultantIss Oct 1999 - Apr 2000General security consulting work; hardening operating systems, architecting secure solution for clients, installing, configuring and operating intrusion detection systems, advising on security policy, training and raising security awareness in clients. Management responsibilities included responsibility for a revenue stream, human resource management of a team of senior and junior consultants, interviewing and hiring new staff.
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Senior Unix Admin/Lead Network Admin/Security OfficerDreamworks Skg Sep 1995 - Sep 1999Glendale, Ca, UsDesigned and built the network and systems for Dreamworks animation division Worked initially by myself, then as a team of two, then later in a team of seven senior admins, along with a full support team of junior staff.Daily system administration tasks on both servers and desktop systems, Solaris enterprise server, Irix (all models), Sun Ultra models. Work was a 50-50 split between systems and network administration, with about 20% of that time spent administering solaris.All phases of network administration from design to daily operations. Responsibility for training the junior staff. Sole responsibility for security management within the division, advised higher management on correct security policy for given situations, chaired a cross-department working group to keep our policies in touch with the users' requirements.Responsible for operational site security. I administered (and designed and built) our division firewall, and drafted security policy for the site. -
Junior Systems AdministratorAmblimation (Uk) Ltd Oct 1994 - Aug 1995Front line application and OS support, backups and archives, junior level sysadmin tasks with a focus on career progression and learning to advance. Given the opportunity to move to Los Angeles when Amblimation merged with new startup Dreamworks in 1995.
Alan Horn Skills
Alan Horn Education Details
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City, University Of LondonAeronautical Engineering
Frequently Asked Questions about Alan Horn
What company does Alan Horn work for?
Alan Horn works for Apple
What is Alan Horn's role at the current company?
Alan Horn's current role is Senior Information Security Engineer at Apple.
What is Alan Horn's email address?
Alan Horn's email address is de****@****ail.com
What is Alan Horn's direct phone number?
Alan Horn's direct phone number is +165092*****
What schools did Alan Horn attend?
Alan Horn attended City, University Of London.
What are some of Alan Horn's interests?
Alan Horn has interest in Good Restaurants, Skiing, Human Rights, Computer Security, Playing Cello, Playing Organ, Reading Sci Fi/fantasy Novels, Concerts, Personal Growth.
What skills is Alan Horn known for?
Alan Horn has skills like Linux, Perl, Unix, Solaris, Freebsd, Network Security, System Administration, Servers, Scalability, Data Center, Cloud Computing, Shell Scripting.
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