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Posted 15 July, 2026

Principal Software Engineer

Oracle
Ireland Full Time
Reference: 218_594304_339693

The Oracle Cloud Infrastructure (OCI) team builds and operates massive-scale, integrated cloud services in a distributed, multi-tenant cloud environment. OCI is committed to providing the best cloud products that meet the needs of our customers, who are tackling some of the world's biggest challenges. We are looking for a Senior Software Development Engineer to help us build high-performance API services that secure and protect API traffic at OCI.

As an ideal candidate, you will have knowledge of large-scale services in a distributed cloud environment. In addition, you will have an understanding of Linux fundamentals and will combine this knowledge with your hands-on experience in software development. You will champion creating an engineering environment that embodies the best development and testing practices for delivering secure, scalable, and highly available services. You should work comfortably in a collaborative, remote, and agile environment, and be excited to learn.

We offer unique opportunities for smart, hands-on engineers with the expertise and passion to solve difficult problems. Our engineers have a significant technical and business impact by designing and building innovative new systems to power our customers' business-critical applications.

Job Responsibilities

  • Work with OCI product leaders and service teams to translate business requirements into technical specifications.

  • Design, develop and troubleshoot scalable, operationally focused, customer-facing cloud services.

  • Automate common tasks to enable continuous delivery and ensure continuous availability with minimal human overhead.

  • Drive performant, scalable, and forward-thinking solutions to completion on time.

  • Maintain both development and production infrastructure as part of a customer-focused engineering culture with operational excellence.

  • Provide technical guidance and constructive feedback to leadership, team members, and other stakeholders.

  • Contribute to product roadmaps by identifying areas of need and engaging with stakeholders to scope work.

  • Mentor and coach junior members in the team.

  • Raise the bar for engineering quality and best practices.

Qualifications

  • 4+ years of experience in the software industry working on architecture, system and software design, development and delivery of highly scalable products and services.

  • Bachelor's degree or Masters in Computer Science or equivalent education.

  • In-depth understanding of the entire product development lifecycle including writing technical specification, assisting to make product impacting decisions, designing world-class services, developing and reviewing code, driving DevOps, leading releases and operations.

  • Ability to identify opportunities for innovation, aim to be on top of tech-debt, plan for continuous improvements in technology and operations and maintain a solid security posture.

  • Strong verbal and written communication, organization, and interpersonal skills.

  • Comfort with complex, rapidly evolving software development environments. Ability to learn new technologies quickly.

  • Strong back-end development experience in Java or other similar modern programming language.

  • Strong experience in microservice-based architecture, distributed systems, SQL and NoSQL databases, REST APIs and Cloud technologies.

  • Good grip over CI/CD process and tools such as GitLab, JIRA, Kubernetes, Docker, Terraform, etc.

  • Previous experience with system monitoring, automation and incident management tools is preferable.

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 [email protected] 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.

Career Level - IC4

Key Responsibilities

Platform Software Development:

  • Own a bounded platform component (service module, SDK area) and evolve its contracts for multi-tenant use.

  • Perform deep debugging across a limited-service graph; drive compatibility-safe remediation plans.

  • Implement targeted resilience/capacity patterns and document adoption guidance for team consumers.

Software Development and Coding - Design, Testing, and Optimization:

  • Designs software solutions and analyzes and helps identify requirements to achieve business and operational goals, independently.

  • Adheres to and suggests improvements to all phases of the software development lifecycle.

  • Utilizes working knowledge to develop new software features and enhancements following design specifications and develops documents to clarify software design and code.

  • Leads code reviews in designated areas to help drive improvements.

  • Conducts debugging and troubleshooting to identify and fix moderately complex software issues. Develops fixes for identified issues.

  • Implements software testing (e.g., functional and non-functional testing), quality assurance processes, software error logging, monitoring, and observability for effective debugging, ensuring review by manager and/or lead throughout the process.

  • Exercises judgment and discretion to conduct performance profiling and optimization of coding.

  • Troubleshoots and resolves moderately complex issues related to application programming interface (API) functionality and integration.

  • Implements moderately complex API versioning, lifecycle, and interoperability strategies.

Software Architecture - Software System Structural Design:

  • Designs and develops software, systems, and services aligned to pre-defined system architecture.

  • Develops working knowledge of software architecture decisions and best practices.

  • Collaborates with team leads to review work to ensure alignment with software architecture.

  • Implements moderately complex performance optimization and scalability strategies in software design.

Issue/Defect Collaboration - Software Products Support:

  • Collaborates within and beyond immediate team to understand customer issues and align solutions.

  • May provide technical guidance and support to customers regarding customer-reported issues, independently.

  • Coaches, mentors, and guides others to advocate for customers' interests and suggests product enhancements based on feedback.

  • Influences team to ensure customer satisfaction through timely resolution of issues and effective communication.

  • Implements customer issue and/or defect handling and training processes, independently.

  • Investigates and troubleshoots complex product maintenance issues to ensure customer agreement on short- and long-term solutions (e.g., future enhancements).

Practices and Standards Compliance - Security and Compliance:

  • Collaborates with the team to establish and follow development practices and coding standards.

  • Exercises judgment and discretion to ensure code quality and adherence to broad acceptance criteria during development.

  • Keeps up to date with industry best practices and applies them to software development processes.

  • Implements secure coding practices to prevent security vulnerabilities.

Development Operations - System Maintenance:

  • Performs periodic maintenance and testing operations for systems that require upgrading or patching (e.g., for critical vulnerabilities).

  • Exercises judgment and discretion to drive improvements, ensure automation, testing, and debugging of systems to ensure service/product availability, health, support, and reliability.

Core Responsibilities

Planning & Execution:

  • Independently manages work, monitoring timelines and deliverables to ensure projects or initiatives stay on track and meet requirements. Proactively prioritizes work and adapts to resource or timeline shifts, suggesting adjustments to maintain project efficiency.

Collaboration & Partnership:

  • Collaborates across teams to align on expectations and achieve shared objectives. Builds and maintains a comprehensive understanding of business, stakeholder, and/or customer needs to build and support effective partnerships. Actively listens to diverse perspectives and asks questions to ensure understanding of others.

Problem Solving:

  • Independently identifies and addresses standard and non-standard issues in accordance with standard practices, escalating more complex issues as appropriate. Analyzes data and/or information from multiple sources to troubleshoot standard and non-standard errors. Contributes to knowledge sharing and best practices.

Continuous Learning:

  • Embraces continuous learning by actively seeking to build knowledge and new skills and/or tools and staying current with industry trends and best practices. Seeks out and leverages feedback and training to improve skills. Contributes to a culture of continuous learning and knowledge sharing with team members.

Continuous Improvement:

  • Develops ideas and recommends updates to increase the efficiency and effectiveness of processes, protocols, and workflows within a team. Seeks input from team members on alternative approaches and methods for improving work.

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