Lead Principal Application Software Engineer

Adheres to and improves execution of all phases of the application software development lifecycle; coaches engineers across teams or units to drive application-focused improvements. Acts as a subject matter expert within the organization to develop and guide new application features and enhancements following design specifications, ensuring accessibility, and develops documents to clarify application design and code. Leads process, architecture, and code reviews across application projects and/or products/services to drive improvements. Utilizes modern/emerging technologies to conduct debugging and troubleshooting to identify and fix highly complex application issues. Resolves and may troubleshoot highly complex and systemic issues requiring innovation related to application programming interface (API) functionality, integration, and service-to-service interactions. Leads task and project initiatives for the design and development of application software, systems, and services. Defines project or design scope; reviews, influences, and approves scope and design recommendations for application components and services. Collaborates with stakeholders internally and externally to lead efforts to understand customer use cases, root causes, and mitigations to align and explain rationale behind application solutions. Must provide expert technical guidance and support to customers regarding application-related issues to mitigate recurrence. Collaborates with the security team and leadership teams to establish, follow, and improve upon application development practices, secure coding standards, and code quality, providing coaching to less experienced team members. Leads project initiatives for periodic maintenance and testing operations for application systems that require upgrading or patching (e.g., for critical vulnerabilities).

Key Responsibilities

Application Software Development:

• Architects and delivers multi-team features and modernization initiatives with clear, organization-level KPIs.

• Establishes global production-readiness standards (SLOs, error budgets, incident tooling) and drives adoption.

• Diagnoses and resolves high-severity, multi-system failures; creates systemic reliability improvements across apps/OCI.

• Harmonizes QA strategy across teams (test pyramids, non-functional testing) to ensure consistent app quality.

• Makes significant architectural decisions; leads migrations and pattern adoptions with deprecation plans.

• Creates scalable blueprints and reference implementations adopted by multiple teams.

• Defines cross-team API governance and dependency management frameworks.

• Shapes prioritization across multiple teams using data from field/customer, telemetry, and live-site signals.

• Institutionalizes feedback loops into planning cadences; measures impact.

• Mentors Staff engineers; partners with Product and Design to balance customer value and technical strategy.

 

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

• Leads project initiatives to design software solutions and identify and analyze requirements. Writes and defines foundational code for new projects or prototypes.

• Adheres to and improves execution of all phases of the software development lifecycle; coaches engineers across teams or units to drive improvements.

• Acts as a subject matter expert within the organization to develop and guide new software features and enhancements following design specifications, ensuring accessibility, and develops documents to clarify software design and code.

• Leads process, architecture, and code reviews across projects and/or products/services to drive improvements.

• Utilizes modern/emerging technologies to conduct debugging and troubleshooting to identify and fix highly complex software issues.

• Leads strategic initiatives to optimize software testing (e.g., functional and non-functional), quality assurance processes, software error logging, monitoring, and observability for effective debugging.

• Encourages innovation, research, and relevant industry practices to optimize performance across products and domains.

• Resolves and may troubleshoot highly complex and systematic issues requiring innovation related to application programming interface (API) functionality and integration.

• Implements innovative API versioning, lifecycle, and interoperability strategies.

 

Software Architecture - Software System Structural Design:

 

• Leads task and project initiatives for the design and development of software, systems, and services. Defines project or design scope; reviews, influences, and