Principal Performance Engineer, Query Processing
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Job CategorySoftware Engineering
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Are you a database performance expert? A SQL tuning pro? Want to be part of something big? How about building the innovative distributed database technology that is powering growth of the Salesforce Core Platform across the globe?
The Salesforce Database team is building the future of trusted enterprise computing in the cloud. We're a fast-paced highly collaborative team and work across all areas of our distributed transactional database technology stack. We are seeking creative and dynamic performance engineers to deliver the tools, analysis, and optimizations that will drive the Salesforce Core database technology to new levels of performance and scalability with every release.
You are a keen analyst up and down the stack. You enjoy designing experiments, analyzing data and optimizing software. You've felt the thrill of speeding up SQL execution by 10X (or 100X) and like to talk about query plans at lunch!
Our performance engineers partner closely with database and storage system developers, application performance engineers, infrastructure engineers, and our analytics team to deliver all the pieces that add up to high performance in production at scale. Sounds exciting? It is!
Run and analyze a broad range of performance workloads and system benchmarks for release qualifications, research, and development projects
Investigate production database performance issues. Drive root cause analysis and identify solutions.
Devise, prototype and evaluate query processing optimizations in the application layer and in the database engine code. Work closely with systems and application developers to deliver performance fixes and proactive improvements.
Collaborate with multiple teams on telemetry, dashboards, monitoring and analytics to manage the performance of our rapidly growing production fleet
Support application performance teams with expert query performance analysis
Provide technical training in database performance analysis to the Salesforce engineering community
BS or higher degree in Computer Science, Electrical Engineering, or related field
5+ years experience in professional software development
5+ years experience in performance engineering for large scale software systems
Strong CS fundamentals including data structures, algorithms, and system design
Expert SQL database programming skills
Extensive experience with SQL query optimization
Fluency with Linux commands, shell scripting
Expertise in data analysis and visualization
High energy and enthusiasm for technical problem solving, learning and growth mindset
Great communication and collaboration skills
Desired Skills & Experience
MS or PhD in databases or distributed systems is a plus
Depth in database architecture and internals including query optimizer function
Strong coding skills (Java or C/C++)
Experience with Splunk for performance monitoring and analytics
Working with source control systems (Git preferred)
Statistical analysis and experimental design
Operating system concepts including processes, threads, memory management, networking, file systems, and storage
Experience with C and Java profiling tools, JVM tuning, heap dump analysis
Network technologies like DNS, Load Balancing, SSL, TCP/IP, HTTP
Cloud based platforms and infrastructure (AWS, GCP, Azure)
Docker and Kubernetes
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