Principal Application Developer Jobs (NOW HIRING)

Principal Application Software Engineer
Position Overview
Oracle Government Defense & Intelligence is seeking a Principal Application Software Engineer to design, build, and operate secure application services for sovereign and government cloud environments. This role is a senior technical contributor who leads complex design and implementation work, guides engineers, improves application development practices, and resolves complex production and integration issues across distributed systems. This role will serve as a technical lead for AI-enabled software capabilities, including secure application architecture, governed data integrations, evaluation tooling, and production-ready operational workflows.
Who We Are
Oracle Sovereign Cloud builds and operates secure cloud capabilities for mission-critical government workloads. Our engineers build resilient services, automation, and integrations that support cloud operations in highly secure environments.
Key Responsibilities

• Lead design and implementation of application features, services, APIs, and integrations aligned to secure, scalable architecture.

• Develop and guide new application features and enhancements, including design specifications, implementation plans, and technical documentation.

• Lead code reviews across multiple application areas and coach engineers on quality, maintainability, security, and operational readiness.

• Troubleshoot and resolve complex application, API, service-to-service, integration, and production issues.

• Contribute to architecture decisions, scalability strategies, performance optimization, and periodic technical reviews.

• Implement comprehensive testing, observability, monitoring, error logging, and debugging practices.

• Collaborate with product, program, QA, operations, security, and customer-facing teams to align technical delivery with mission and business needs.

• Mentor engineers and contribute to hiring, technical standards, and continuous improvement across the team.

• Design and implement AI-enabled software capabilities, including secure service integrations, workflow orchestration, evaluation tooling, operational data access, and production application features.

• Define engineering patterns for testing, validating, monitoring, and operating AI-enabled software, including reliability, latency, quality, failure handling, auditability, and safe degradation.

• Lead technical design for governed access to approved operational data sources and ensure AI-enabled features provide evidence-grounded, supportable outputs.

• Mentor engineers on secure implementation, observability, debugging, and operational readiness for AI-enabled software in sovereign or restricted environments.

Minimum Qualifications

• U.S. Citizenship with active US Government security clearance, TS/SCI with Poly, at hire.

• 11 years of software development experience; or bachelor's degree in a relevant technical field and 7 years of software development experience; or master's degree in a relevant technical field and 5 years of software development experience; or doctorate in a relevant technical field and 3 years of software development experience.

• 6 years of experience with programming and/or scripting languages.

• 4 years of experience with databases.

• Experience designing, building, testing, and operating distributed application services.

• Demonstrated experience with code review, automation, quality assurance, secure development practices, and technical mentorship.

Preferred Qualifications

• 11 years of software development experience or equivalent advanced degree plus experience.

• 3 years of experience with cloud platforms such as Oracle Cloud Infrastructure, AWS, Azure, or Google Cloud.

• 1 year of experience working with operating budgets and/or project financials.

• Experience with RESTful APIs, microservices, service-oriented architecture, CI/CD, containers, Kubernetes, Linux, observability, and incident response.

• Experience delivering software in regulated, classified, sovereign, or air-gapped environments.

• Experience building production AI-enabled software, including secure application integrations, evaluation frameworks, workflow automation, model-serving integrations, operational data platforms, or observability for AI-enabled systems.

Responsibilities
Key Responsibilities

• Lead design and implementation of application features, services, APIs, and integrations aligned to secure, scalable architecture.

• Develop and guide new application features and enhancements, including design specifications, implementation plans, and technical documentation.

• Lead code reviews across multiple application areas and coach engineers on quality, maintainability, security, and operational readiness.

• Troubleshoot and resolve complex application, API, service-to-service, integration, and production issues.

• Contribute to architecture decisions, scalability strategies, performance optimization, and periodic technical reviews.

• Implement comprehensive testing, observability, monitoring, error logging, and debugging practices.

• Collaborate with product, program, QA, operations, security, and customer-facing teams to align technical delivery with mission and business needs.

• Mentor engineers and contribute to hiring, technical standards, and continuous improvement across the team.

• Design and implement AI-enabled software capabilities, including secure service integrations, workflow orchestration, evaluation tooling, operational data access, and production application features.

• Define engineering patterns for testing, validating, monitoring, and operating AI-enabled software, including reliability, latency, quality, failure handling, auditability, and safe degradation.

• Lead technical design for governed access to approved operational data sources and ensure AI-enabled features provide evidence-grounded, supportable outputs.

• Mentor engineers on secure implementation, observability, debugging, and operational readiness for AI-enabled software in sovereign or restricted environments.

Qualifications
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: $99,600 to $209,500 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.
Career Level - IC4
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.
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