Platform Engineer, Principal

Job Description

Your Role

The Platform Operations team, that focuses on the design, build, and operation of our foundational tech stack. The Principal Platform Engineer will report to the Director, Platform Engineering. In this role you will be focused on Agentic AI, to design, build, and evolve intelligent, autonomous systems that enhance internal developer productivity and operational efficiency.

This role focuses on creating an agentic internal developer platform (IDP) using natural language interfaces, automating repetitive workflows, and developing AI-driven tooling to analyze and improve existing processes and procedures, all while following a Gitops framework

Our leadership model is about developing great leaders at all levels and creating opportunities for our people to grow - personally, professionally, and financially. We are looking for leaders that are energized by creative and critical thinking, building and sustaining high-performing teams, getting results the right way, and fostering continuous learning.

Responsibilities

Your Work

In this role, you will:

• Design and implement an agentic internal developer platform (IDP) that enables developers to interact with systems using natural language.
• Build AI agents capable of planning, reasoning, and executing multi-step tasks autonomously.
• Develop modular, scalable architectures that support multiple agents and workflows.
• Integrate LLMs, APIs, and internal systems into a cohesive agent ecosystem.
• Create systems that allow users to define, execute, and monitor workflows using natural language.
• Translate user intent into structured actions and automated pipelines.
• Continuously improve language understanding, context awareness, and response accuracy.
• Identify repetitive processes and procedures across engineering and operations teams.
• Design and deploy agentic solutions to automate these workflows end-to-end.
• Ensure automation solutions are reliable, auditable, and secure.
• Measure and optimize efficiency gains from automation initiatives.
• Build agentic tooling to mine, analyze, and map current-state processes and procedures.
• Extract insights from logs, documentation, and system interactions.
• Generate actionable recommendations for process optimization.
• Maintain up-to-date representations of workflows and system dependencies.
• Develop internal tools and SDKs to enable rapid creation of new AI agents.
• Integrate with CI/CD systems, observability tools, and developer workflows.
• Ensure interoperability across platforms and services.
• Implement safeguards for agent behavior, including monitoring, validation, and rollback mechanisms.
• Ensure compliance with security, privacy, and data governance standards.
• Build observability into agent decision-making and execution paths.

Qualifications

Your Knowledge and Experience

• Requires a bachelor's degree or equivalent professional experience.
• Requires at least 10 years of professional relevant experience
• Expereince serving as a technical expert and thought leader in enterprise Platform development and operation.
• Strong hands-on experience managing cloud services in a heavily regulated, DevOps environment
• In depth knowledge of cloud hosting providers, including Microsoft Azure highly desired
• Experience working in an agile development environment is strongly desired
• Experience working remotely is strongly desired
• Strong experience with LLMs, agent frameworks, and prompt engineering.
• Proficiency in Python, JavaScript/TypeScript, or similar languages.
• Experience building APIs, distributed systems, and scalable backend services.
• Familiarity with workflow orchestration and automation tools.
• Strong understanding of system design and software architecture.

About the Team

About Stellarus and the Ascendiun Family of Companies

Stellarus, launched in January 2025, is designed to scale innovative healthcare solutions that support customers in creating a health care experience deserving of their family, friends, and neighbors.

Stellarus is part of a family of organizations that is overseen by a nonprofit corporate entity named Ascendiun. The Ascendiun Family of Companies also includes Blue Shield of California and its subsidiary, Blue Shield of California Promise Health Plan and Altais, a clinical services company.

Stellarus' vision is to empower its customers to create a healthcare experience that is worthy of their family, friends, and neighbors. Stellarus' objective is to offer innovative, modern, scalable solutions that challenge the health care status quo. This very closely aligns with Blue Shield of California's vision by using innovation to improve quality, affordability, and experience for members.

To achieve our mission, we foster an environment where all employees can thrive and contribute fully to address the needs of the various communities we serve. We are committed to creating and maintaining a supportive workplace that upholds our values and advances our goals.

Our Values:

At Stellarus, our core values of agility, trust, drive, courage and service shape our approach to developing innovative product offerings.

Our Workplace Model:

We believe in fostering a workplace environment that balances purposeful in-person collaboration with flexibility - providing clear expectations while respecting the diverse needs of our workforce. Our workplace model is designed around intentional in-person interaction, collaboration, connection, creativity and flexibility:

• For most teams, this means coming into the office two days per week.
• Employees living more than 50 miles from an office location, out of state employees, and employees in certain member-facing roles should work with their manager to determine in-office time based on business need.
• For employees with medical conditions that may impact their ability to work in-office, we are committed to engaging in an interactive process and providing reasonable accommodations to ensure their work environment is conducive to their success and well-being.

The Company reserves the right to require more presence in the office based on business needs, and requirements are subject to change with periodic reviews.

Physical Requirements:

Office Environment - roles involving part to full time schedule in Office Environment. Based in our physical offices and work from home office/deskwork - Activity level: Sedentary, frequency most of work day.

Please click here for further physical requirement detail.

Equal Employment Opportunity:

External hires must pass a background check/drug screen. Qualified applicants with arrest records and/or conviction records will be considered for employment in a manner consistent with Federal, State and local laws, including but not limited to the San Francisco Fair Chance Ordinance. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, national origin, sexual orientation, gender identity, protected veteran status or disability status and any other classification protected by Federal, State and local laws.