Senior Software Development Engineer in Test
Cloudmark - San Francisco, CA

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Company Overview
Cloudmark produces high performance messaging security solutions to the world’s largest ISPs, mobile and social networks. Our customers include over 100 of the world's largest Internet service providers, including the majority of tier-1 operators in North America, Japan and Europe. Our products protect more than one billion inboxes, worldwide.
Objective of Position
Cloudmark is looking for Software Development Engineers in Test (SDETs) who enjoy delivering bad news to programmers. Our testing team members come from a variety of backgrounds: software development, network engineering, system administration, white-box software testing, and computer security.
Ability to read, write, and debug C code is a non-negotiable prerequisite for this position.
Find, report bugs and design flaws in our software before it is released to our customers
Plan testing and deliver estimates
Build and manage multi-platform test environments, including backend systems
Unix environment C debugging and profiling tools (gdb, prof, gprof, gmon)
Unix mail transfer agent (MTA) administration (sendmail, postfix, exim)
Unix network monitoring (netstat, tcpdump, Wireshark)
Unix system profiling (oprofile, SystemTap, dtrace, lockstat)
Bash shell scripting
Constructing regular expressions
Understanding of the fundamentals of computer science
Excellent verbal and written communication skills
Python and Perl programming experience preferred
Education & Experience
BA or equivalent experience
5+ years of professional experience as a software test engineer, system programmer, software developer, system administrator, developer support engineer, or sales engineer, working in a Unix environment

Cloudmark is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, or Vietnam era, or other eligible veteran status, or any other protected factor.