Platform Software Engineer 2

Delivers routine and some non-routine work on JVM JIT compilers under moderate supervision. Implements focused enhancements to OpenJDK compiler components and troubleshoots correctness and performance issues using established development and testing practices. Analyzes generated code and test results, contributes to support for evolving Java features, and collaborates with Java platform and OCI teams to help maintain reliable Java execution.

Key Responsibilities

JVM JIT Compiler Development:

• Develops and tests focused enhancements to OpenJDK JIT compilers, including work involving type systems, optimizations, vector operations, and processor-specific code generation.
• Contributes to compiler support for evolving Java features, including value classes developed through Project Valhalla.
• Validates compiler changes across supported platforms and Java features to preserve program behavior and prevent performance regressions.

Software Development, Testing, and Optimization:

• Analyzes compiler and runtime requirements and contributes to the design of JIT optimizations with limited guidance.
• Develops and reviews code following design specifications and OpenJDK development practices.
• Investigates incorrect program results, compilation failures, compiler crashes, excessive resource use, and performance regressions.
• Develops fixes for identified issues and verifies them through targeted, exhaustive, or randomized testing, as appropriate.
• Analyzes generated assembly, compiler diagnostics, and benchmark results to assess correctness and performance.
• Contributes improvements to compiler diagnostics, tests, and documentation.

Issue and Defect Collaboration:

• Collaborates within the Java Platform Group and with OCI teams to understand issues, investigate causes, and align on solutions.
• Communicates findings and proposed fixes to colleagues and participates in code review.
• Escalates broader design or cross-component issues to experienced engineers as needed.

Development Practices and System Maintenance:

• Follows established coding, security, testing, and release practices.
• Maintains compiler tests and investigates interactions between compiled code, the JVM runtime, and garbage collection.
• Identifies small improvements to debugging, verification, and development workflows.

Core Responsibilities

Planning and Execution: Tracks assigned work and adjusts priorities with guidance as requirements or timelines change.

Collaboration and Partnership: Works with teammates and partner teams to understand technical needs and achieve shared objectives.

Problem Solving: Gathers evidence from tests, generated code, benchmarks, and issue reports to troubleshoot standard and some non-standard problems.

Continuous Learning and Improvement: Develops expertise in compiler and runtime systems, applies feedback, and contributes to improvements in team practices.

Qualifications

• Experience developing or debugging compilers, virtual machines, runtimes, or comparable systems software.
• Hands-on experience with JVM internals and JIT compiler development or debugging.
• Experience working with the OpenJDK codebase and its development practices.
• Strong proficiency in C++, including developing and debugging complex systems software.
• Programming experience in Java.
• Experience applying compiler concepts such as intermediate representations, optimization, type systems, or code generation.
• Understanding of processor architecture and its relationship to generated code.
• Familiarity with interactions between JIT-compiled code and garbage collection.
• Experience using benchmarks or performance profiles to evaluate software changes.
• Experience analyzing generated assembly to diagnose correctness or performance issues.
• Ability to investigate complex defects, validate fixes with tests, and communicate technical findings.

Helpful experience: Vectorization, randomized compiler testing, or cross-platform compiler testing.

Certain U.S. based or U.S. customer or client-facing roles may be required to comply with applicable requirements, such as immunization/occupational health mandates, and/or drug testing requirements.

Range and benefit information provided in this posting are specific to the stated locations only

US: Hiring Range in USD from: $79,600 to $166,100 per annum. May be eligible for bonus and equity.

Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle's differing products, industries and lines of business.

Candidates are typically placed into the range based on the preceding factors as well as internal peer equity.

Oracle US offers a comprehensive benefits package which includes the following:

1. Medical, dental, and vision insurance, including expert medical opinion

2. Short term disability and long term disability

3. Life insurance and AD&D

4. Supplemental life insurance (Employee/Spouse/Child)

5. Health care and dependent care Flexible Spending Accounts

6. Pre-tax commuter and parking benefits

7. 401(k) Savings and Investment Plan with company match

8. Paid time off: Flexible Vacation is provided to all eligible employees assigned to a salaried (non-overtime eligible) position. Accrued Vacation is provided to all other employees eligible for vacation benefits. For employees working at least 35 hours per week, the vacation accrual rate is 13 days annually for the first three years of employment and 18 days annually for subsequent years of employment. Vacation accrual is prorated for employees working between 20 and 34 hours per week. Employees working fewer than 20 hours per week are not eligible for vacation.

9. 11 paid holidays

10. Paid sick leave: 72 hours of paid sick leave upon date of hire. Refreshes each calendar year. Unused balance will carry over each year up to a maximum cap of 112 hours.

11. Paid parental leave

12. Adoption assistance

13. Employee Stock Purchase Plan

14. Financial planning and group legal

15. Voluntary benefits including auto, homeowner and pet insurance

The role will generally accept applications for at least three calendar days from the posting date or as long as the job remains posted.

As part of Oracle's onboarding process and consistent with applicable law, US-based employees are required to complete identity verification, which involves the collection and processing of their biometric information. Accommodations to this requirement may be granted following an individualized assessment.