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SQL Data Systems Engineer, Query Optimizer

Oracle

On-site
United States
Full-time
Senior
Principal
6+ yrs
Salary not listedPosted 2w ago

Real job — pulled straight from Oracle’s careers page · Verified July 31, 2026 · No reposts.

Job description

Oracle is hiring a SQL Data Systems Engineer, Query Optimizer — a full-time, based in United States role. Apply directly on Oracle's careers page below.

Database Developer-SQL, Kernel, and Query Optimizer Developer

Location: United States

We are looking for a strong Database Developer who will be responsible for the research, design, and development of advanced features in the query optimizer component of Oracle Database. Additionally, you can be adding autonomous features and self learning and ML capabilities in keeping the query optimizer on the leading edge with respect to the competing database systems.

Our vision is to make Oracle query optimizer the most advanced yet easiest to use in the industry but most importantly continue to have fun achieving it

The team members have a strong research background and strive to bring the most advanced ideas to market in the latest versions of Oracle RDBMS. The group actively participates in collaborative manner of designing cross-group features like data partition pruning, zone map pruning, bloom filtering and pruning, database in-memory costing and optimization, JSON and XML document processing. Our team is heavily involved in the creation of automatic features (e.g. auto SQL plan management, auto indexing, auto error mitigation) for On-Prem databases and Autonomous Database announced by Larry Ellison at the Oracle Open World in Oct 2017. The group actively participates in customer and standard industry benchmark efforts. The group owns a large patent portfolio reflecting the ownership of many state-of-the-art innovations.

Qualifications:

The candidate must have the following:

  1. 6+ years of industry experience
  2. knowledge of SQL databases
  3. knowledge of how SQL is processed by kernel
  4. systems programming experience
  5. kernel software development

Highly desirable:

  1. knowledge of SQL query optimization

About Us

Only Oracle brings together the data, infrastructure, applications, and expertise to power everything from industry innovations to life-saving care. And with AI embedded across our products and services, we help customers turn that promise into a better future for all. Discover your potential at a company leading the way in AI and cloud solutions that impact billions of lives.

True innovation starts when everyone is empowered to contribute. That’s why we’re committed to growing a workforce that promotes opportunities for all with competitive benefits that support our people with flexible medical, life insurance, and retirement options. We also encourage employees to give back to their communities through our volunteer programs.

We’re committed to including people with disabilities at all stages of the employment process. If you require accessibility assistance or accommodation for a disability at any point, let us know by emailing accommodation-request_mb@oracle.com or by calling 1-888-404-2494 in the United States.

Oracle is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Oracle will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

Optimizer group is responsible for developing Oracle's state of the art query optimizer. The query optimizer is often referred to as the brain of the database management system because it is the component that decides how to process SQL queries by building execution plans. Some of the optimizer areas include automatic statistics gathering, query transformation techniques, search algorithms and cost formulas to select access paths, join methods, join orders to produce the best performing execution plan for a SQL statement. The algorithms for efficient query processing encompass applications and areas like data warehousing, OLTP and non-traditional data processing (e.g. Text, Spatial, XML, JSON).

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Frequently asked questions

What skills are required for SQL Data Systems Engineer, Query Optimizer at Oracle?

The required skills for SQL Data Systems Engineer, Query Optimizer at Oracle include: SQL, Data Warehousing, JSON, XML.

What is the seniority level for SQL Data Systems Engineer, Query Optimizer at Oracle?

SQL Data Systems Engineer, Query Optimizer at Oracle is a Senior / Principal level position.

How do I apply for SQL Data Systems Engineer, Query Optimizer at Oracle?

You can view the full description and apply for SQL Data Systems Engineer, Query Optimizer at Oracle on EchoJobs: https://echojobs.io/job/oracle-lead-principal-sql-data-systems-engineer-query-optimizer-rb9gu.