Principal Core Infrastructure Engineer

Disclaimer:

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: $114,600 to $234,600 per annum. May be eligible for bonus, equity, and compensation deferral.


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.

Key Responsibilities

System Design and Architecture

Dataplane Scalability and Performance

• Design and implement major C and C++ features for OCI’s high-performance virtual networking dataplane, including routing, NAT, network gateways, and security-policy enforcement.
• Own complex packet-processing components that support scalable, multi-tenant cloud networking.
• Drive performance improvements across CPU utilization, memory use, concurrency, latency, throughput, and packet-processing efficiency.
• Apply and evolve fast dataplane technologies such as DPDK, VirtIO, Linux networking, eBPF/XDP, SR-IOV, SmartNICs, and userspace packet-processing frameworks.
• Define and execute performance, scale, stress, and load tests; use results to identify bottlenecks and deliver measurable improvements.
• Lead system-level design and code reviews, ensuring solutions meet expectations for performance, correctness, reliability, and maintainability.

Reliability and Availability

• Design and build fault-tolerant gateway and dataplane components that remain available through host failures, network disruptions, and in-service software updates.
• Implement resilient patterns including health checks, graceful draining, retries, timeouts, failover, rollback, and recovery.
• Develop fault-injection, brownout, failure-recovery, and availability tests for critical network paths.
• Drive safe change management through automated validation, staged rollouts, monitoring, rollback, and recovery procedures.

Observability and Operational Excellence

• Define and improve metrics, alarms, dashboards, telemetry, canaries, and health checks for dataplane services.
• Independently diagnose and resolve complex Linux, networking, performance, and production issues using logs, metrics, traces, packet captures, profilers, and core dumps.
• Build runbooks, diagnostic tools, and operational automation that reduce time to detect, mitigate, and recover from incidents.
• Participate in on-call, lead incident investigations for owned components, and deliver durable corrective actions.

Security and Multi-Tenant Isolation

• Design and implement features that enforce strong tenant isolation, secure traffic handling, and policy enforcement.
• Partner with security teams to identify, prioritize, and remediate vulnerabilities and operational risks.
• Ensure designs, documentation, and operational practices meet applicable security, compliance, and change-management requirements.

Automation and Change Management

• Build and maintain automation and infrastructure-as-code for service development, deployment, monitoring, and operations.
• Improve deployment safety through automated testing, pre-production validation, progressive rollout, and rollback guardrails.
• Own major platform end to end: design, implementation, testing, deployment, production validation, and ongoing support.

Core Responsibilities

Planning and Execution

• Independently plan and execute complex work, identifying risks, dependencies, and tradeoffs early.
• Manage priorities across multiple initiatives and communicate progress, decisions, and blockers clearly.
• Break ambiguous technical problems into deliverable milestones and drive them to completion.

Collaboration and Technical Leadership

• Collaborate across networking, control-plane, infrastructure, security, hardware, and operations teams to deliver shared outcomes.
• Lead technical discussions for owned areas and provide thoughtful design and code-review feedback.
• Mentor less-experienced engineers in systems programming, debugging, operational practices, and reliable service ownership.
• Document technical decisions and contribute to team standards, reusable patterns, and engineering knowledge.

Problem Solving and Continuous Improvement

• Resolve complex, cross-layer issues by analyzing evidence from systems, networking, and production telemetry.
• Make sound tradeoffs among performance, reliability, security, maintainability, and delivery speed.
• Identify and lead practical improvements to development, testing, deployment, observability, and operational workflows.
• Stay current with C/C++, cloud networking, Linux, and high-performance dataplane technologies; share relevant knowledge with the team.

Minimum Job Qualifications
Education and/or Experience:
11 years of experience in software development
OR
Bachelor's of Technology (B.Tech) Degree in Computer Science, Computer Engineering, Software Engineering, Electrical/Electronics Engineering, Computer Information Systems, Information Systems, Information Technology, Telecommunications, Mathematics, Physics, or related field AND 7 years of experience in software development
OR
Bachelor's Degree in Computer Science, Computer Engineering, Software Engineering, Electrical/Electronics Engineering, Computer Information Systems, Information Systems, Information Technology, Telecommunications, Mathematics, Physics, or related field AND 7 years of experience in software development
OR
Master's of Technology (M.Tech) Degree in Computer Science, Computer Engineering, Software Engineering, Electrical/Electronics Engineering, Computer Information Systems, Information Systems, Information Technology, Telecommunications, Mathematics, Physics, or related field AND 5 years of experience in software development
OR
Master's Degree in Computer Science, Computer Engineering, Software Engineering, Electrical/Electronics Engineering, Computer Information Systems, Information Systems, Information Technology, Telecommunications, Mathematics, Physics, or related field AND 5 years of experience in software development
OR
Doctorate in Computer Science, Computer Engineering, Software Engineering, Electrical/Electronics Engineering, Computer Information Systems, Information Systems, Information Technology, Telecommunications, Mathematics, Physics, or related field AND 3 year of experience in software development.

Job Skills:
Same skills as prior level plus;
Data Analysis: Demonstrated ability to analyze and interpret data to produce actionable business insights.
Agile Methodologies: Demonstrated ability to use agile methodologies to drive continuous improvement and product delivery.
Automation: Demonstrated ability in or knowledge of automation, including designing, implementing, and managing automated tools, processes, or systems to streamline operations.
Compliance: Demonstrated knowledge of and adherence to regulatory, legal, and organizational compliance requirements.
Quality Assurance: Demonstrated ability in or knowledge of quality assurance, including ensuring adherence to standards and implementing quality control measures.
Scripting Languages: Demonstrated ability in or knowledge of scripting languages, including writing and maintaining scripts to improve system efficiency.
Software Test Plans: Demonstrated ability to develop and execute effective software test plans to validate product quality.
User Experience Development: Demonstrated ability in or knowledge of user experience development, including designing intuitive and effective user interfaces and content.
Code Review: Demonstrated ability to conduct in-depth code reviews for software quality assurance.
Embedded Systems: Demonstrated ability to develop embedded systems, balancing hardware and software for optimal performance.
Software Estimation: Demonstrated ability to provide accurate software effort and complexity estimates for project planning and scheduling.

Cloud - Cloud Platforms Experience:
3 year of academic or professional experience with cloud platforms (e.g., AWS, Azure, Google, Oracle Cloud).
Testing and Automation Experience:
5 years of experience working in testing and automation at the system level.
Distributed Systems Experience:
4 year of experience working with delivering and operating large-scale distributed systems.