Principal Database Performance Engineer

Location: NOIDA, UTTAR PRADESH, India

About the Team

Join Oracle's cutting-edge Data Platform team, where innovation meets scale. We build and support high-performance, enterprise-grade database solutions that power mission-critical applications for customers across the globe. Our team partners closely with Engineering, Product Management, Customer Success, and Support to solve complex database performance challenges while ensuring exceptional scalability, reliability, and availability. We thrive in a collaborative, fast-paced environment focused on delivering world-class database performance for enterprise workloads.

 

Role Overview

As a Principal Site Reliability Developer, you will play a critical role in improving the performance, scalability, and reliability of Oracle Database environments supporting enterprise-scale applications. This role is primarily focused on Performance Engineering, where you will analyse complex production workloads, investigate database performance issues, optimize SQL execution, and drive proactive performance improvements across large-scale Oracle environments. You will work closely with engineering teams to diagnose performance bottlenecks across SQL, PL/SQL, database architecture, and application interactions. While experience with PL/SQL development is essential, it is primarily required to optimize existing database logic and improve application performance rather than build new database applications.

Who Will Be an Ideal Fit

You are an experienced Oracle Database Performance Engineer with a passion for solving complex performance problems at scale. You have deep expertise in Oracle database internals, SQL optimization, execution plan analysis, and production performance diagnostics. You enjoy investigating challenging database issues, identifying root causes, and implementing scalable performance improvements. You possess strong analytical skills, excellent troubleshooting abilities, and a customer-first mindset.

 

Why You Should Accept This Role:
 

Work on Oracle Database technologies including Oracle 19c, 21c, and 23ai

Solve complex database performance challenges for enterprise customers

Influence performance improvements across mission-critical production systems

Collaborate with world-class Engineering, Product, and Customer Success teams

Gain exposure to distributed databases, large-scale workloads, and cloud-native architectures

Continuous learning opportunities in Oracle Database technologies and Performance Engineering
 

Must-Have Skills:

Strong SQL tuning and performance optimization skills (AWR/ASH, ADDM, SQL Monitor, SQL Trace, TKPROF, Performance Diagnostics, Root Cause Analysis, Explain Plans, Optimizer Hints)

Experience with partitioning, Indexing, materialized views, and analytical functions
Deep understanding of Oracle Optimizer and Cost-Based Optimization 

Hands-on experience with PL/SQL development and Oracle database internals

Expertise in Oracle versions 19c, 21c, and 23ai

Proficiency in programming languages such as C, C++, Java, or Python

Experience with relational and NoSQL databases (e.g., MongoDB, Cassandra)

Knowledge of distributed databases, sharding, and massively parallel processing systems

Experience with high availability, backup/recovery, and disaster recovery strategies

Strong troubleshooting and debugging skills across database and application layers

Ability to manage multiple priorities in a fast-paced environment

 

Nice-to-Have Skills:
 

Experience with internet-scale applications

Familiarity with Oracle Globally Distributed Database

Experience working with Oracle Cloud Infrastructure (OCI)

Exposure to DevOps practices and tools such as Terraform

Experience writing and publishing technical white papers

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.

Solve complex problems related to infrastructure cloud services and build automation to prevent problem recurrence. Design, write, and deploy software to improve the availability, scalability, and efficiency of Oracle products and services. Design and develop designs, architectures, standards, and methods for large-scale distributed systems. Facilitate service capacity planning and demand forecasting, software performance analysis, and system tuning.