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Performance Engineer

Greater Atlanta Area, US - Computer Software, Information Technology and Services, Internet

Are you obsessed with squeezing the last bit of performance possible out of your applications? Are you always looking for ways to better utilize CPU, memory, and IO subsystems? Are you enjoying endless learning opportunities while your core skills never get outdated? Are you intrigued by some of the largest enterprise cloud deployments on the planet and how they really are deployed at scale? As a Performance Engineer you'll be a part of the team responsible for developing the tests, tools, frameworks, and platforms necessary for ensuring Salesforce.com remains the world's most highly performing, scalable, and reliable enterprise cloud computing company in the industry. Your direct efforts will help us ensure we use the most innovative methodologies and architecture, cutting-edge automation, and advanced tools in the industry to maintain our leadership position.



Pardot is seeking a Performance Engineer to work on measuring, analyzing, and helping optimize the performance and scalability of new hardware and software deployments of its marketing automation platform within an Agile development environment. When a systems level issue arises, the Systems Performance Engineer will not only be able to identify it, but be able to communicate to others why it is happening, and what can be done to resolve it. The Systems Performance Engineer will take part in setting up, utilizing and contributing to custom built performance automation frameworks and software tools. The Systems Performance Engineer must demonstrate the ability to understand complex hardware and data center configurations and deployments, to pinpoint problem areas, and to develop succinct test plans across multiple hardware and software tiers with little more than verbal conversation.



The Performance Engineer will also:

• Provide accurate scoping, clear strategies, and milestones for performance tests


• Communicate status, risks to test complete dates, and offer mitigation strategies to ensure on-time delivery of all committed projects to cross functional teams


• Participate in discussions and planning with development teams


• Design and implement overhead, scalability, stability, and stress tests


• Review automation implementations and encourage sound design principles


• Review test plans, results analysis, and capacity planning guides for in–flight releases


• Provide expertise for use in research projects, sizing, capacity planning, and hardware and network configuration

Required Skills:

• 2+ years of performance testing, analysis, troubleshooting, and optimization on large scale LAMP systems


• Experiences involving system performance measurement and analysis demonstrating a distinguished track record on technically demanding projects


• BS, MS, or PhD in Computer Science or a related technical field or equivalent work experience


• Outstanding attention to detail and communication skills


• Ability to identify and resolve system bottlenecks


• Ability to identify potential limitations in hardware and software architectures


• Ability to write clear and concise technical documents


• Troubleshooting and reasoning skills


• Understanding of throughput, latency, memory and CPU utilization


• Strong understanding of CPU architectures (e.g., multicore utilization, hyperthreading, L1/L2 cache)


• Strong understanding of memory management architecture (e.g., virtual memory, NUMA, TLB)


• Strong understanding of file systems (e.g., XFS, ZFS, SAN, SSD)


• Strong understanding of networking configuration and performance measurement


• Working knowledge of operating system monitoring and tuning tools (e.g., OProfile, vmstat, iostat, nicstat, sar)


• Working knowledge of application profiling tools, especially in the PHP ecosystem (xdebug, xhprof, kcachegrind)


• Working knowledge of TCP/IP, networking topology, use and configuration of routers/switches


• Working knowledge of network packet sniffers (e.g., Wireshark, TcpDump, Network Monitor, tcpreplay, EtherPeek)


• Strong skills in at least one high-level scripting language (e.g., Python, Ruby, Perl)


• Strong knowledge of UNIX commands and scripting (e.g., bash)

Desirable Skills:

• Experience in automation of systems testing and system administration tasks


• Experience with both static and dynamically typed object-oriented languages (e.g. PHP, Java, C++)


• Familiar with PHP internals (memory management, common performance pitfalls)


• Familiar with Java Technologies (e.g., JSP, Servlets, EJB, WebServices, SOA)


• Familiar with Load Generators (e.g. JMeter, LoadRunner, etc)

About Salesforce.com

Salesforce.com is the global leader in customer relationship management (CRM) software. We pioneered the shift to cloud computing, and today we’re delivering the next generation of social, mobile and cloud technologies that help companies revolutionize the way they sell, service, market and innovate–and become customer companies. We are the fastest growing of the top 10 enterprise software companies, the World’s Most Innovative Company according to Forbes and one of Fortune’s 100 Best Companies to Work For. Our more human, less corporate culture is built around doing work that matters, winning as a team and celebrating success Aloha-style. Ready to find your #dreamjob?



We offer competitive salaries, ridiculously good benefits, and an extremely fun environment.



Salesforce.com will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. Salesforce.com is an Equal Employment Opportunity and Affirmative Action Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, or disability status. Headhunters and recruitment agencies may not submit resumes/CVs through this Web site or directly to managers. Salesforce.com does not accept unsolicited headhunter and agency resumes. Salesforce.com will not pay fees to any third-party agency or company that does not have a signed agreement with Salesforce.com.



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Posted November 04, 2014 at 05:43AM from LinkedIn http://ift.tt/1GjG405

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