Principal Performance Engineer, Query Processing



Multiple locations
Posted on Friday, June 7, 2024

To get the best candidate experience, please consider applying for a maximum of 3 roles within 12 months to ensure you are not duplicating efforts.

Job Category

Software Engineering

Job Details

About Salesforce

We’re Salesforce, the Customer Company, inspiring the future of business with AI+ Data +CRM. Leading with our core values, we help companies across every industry blaze new trails and connect with customers in a whole new way. And, we empower you to be a Trailblazer, too — driving your performance and career growth, charting new paths, and improving the state of the world. If you believe in business as the greatest platform for change and in companies doing well and doing good – you’ve come to the right place.

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!

Job Responsibilities:
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

  • MS or PhD in databases or distributed systems is a plus

  • 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

  • Proficiency in a high level programming language (Python, Java, JavaScript)

  • 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

  • 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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Salesforce 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. Salesforce does not accept unsolicited headhunter and agency resumes. Salesforce will not pay any third-party agency or company that does not have a signed agreement with Salesforce.

Salesforce welcomes all.

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring, Salesforce will consider for employment qualified applicants with arrest and conviction records.

For Washington-based roles, the base salary hiring range for this position is $204,400 to $296,400.

For California-based roles, the base salary hiring range for this position is $223,000 to $323,400.

Compensation offered will be determined by factors such as location, level, job-related knowledge, skills, and experience. Certain roles may be eligible for incentive compensation, equity, benefits. More details about our company benefits can be found at the following link: