Full Stack Engineer, Principal

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.

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.

Your Role  

As a Full Stack Engineer in the healthcare space, you’ll architect seamless, mission‑critical applications that clinicians and patients depend on. From polished interfaces to high‑performance backends, you’ll shape technology that improves care delivery and enhances lives.

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. 

Your Work  

In this role, you will:  

• Serve as a recognized technical authority across multiple products, platforms, or domains, shaping application architecture and engineering direction beyond a single team.
• Develop secure, testable, and maintainable code aligned with modern architectural patterns
• Implement system integrations and manage reliable data models for distributed components
• Ensure applications are cloud-ready and compatible with established CI/CD workflows
• Lead resolution of the most complex and ambiguous technical challenges, driving durable, long-term solutions that improve platform health and reduce systemic technical risk.
• Leverage AI tools to enhance productivity, code quality, and documentation, while critically applying outputs
• Drive system reliability and observability practices, ensuring proactive identification and resolution of complex production issues across systems
• Define and promote engineering standards, patterns, and best practices that improve scalability, security, reliability, and delivery effectiveness across the organization. 

Your Knowledge and Experience  

• 10+ years of experience in full stack development
• BA/BS in Computer Science or equivalent
• Proficiency in modern front-end frameworks (React, Vue, Angular or similar) and JavaScript/TypeScript
• Experience building backend services and APIs using .NET, Java, Node.js, Python, or similar technologies
• Strong knowledge of SQL (e.g., MS SQL Server, Oracle) and/or NoSQL databases and RESTful integrations
• Experience developing cloud-native applications (Azure preferred; AWS/GCP acceptable)
• Experience with containerization (e.g., Docker)
• Familiarity using Infrastructure as Code (e.g., Ansible, Bicep, ARM, Terraform) to provision and manage cloud resources
• Working knowledge of CI/CD pipelines and version control systems (e.g., GitHub, GitLab, Bitbucket)
• Experience using AI-assisted coding tools in professional software development (e.g., GitHub Copilot, Cursor, Claude, or similar)
• Experience working in regulated environments (e.g., healthcare) preferred
• Familiarity with healthcare interoperability standards or enterprise healthcare platforms (e.g., Epic) preferred  
• End-to-end ownership mindset – thinks about UI, logic, and data as one cohesive system
• Engineering pragmatism – balances ideal architecture with delivery speed and business value
• AI-augmented builder – leverages AI tools effectively while maintaining strong engineering judgment
• Effective collaboration with product, design, QA, security, and platform teams
• Ability to operate in dynamic, evolving environments with shifting priorities
• Clear communication of technical concepts to both technical and non-technical stakeholders 

 

Hybrid

This role requires employees to be in-office based on our hybrid workplace model, balancing purposeful in-person collaboration with flexibility. For most teams, this means coming into the office two days each week.

Employees living more than 50 miles from an office location will work with their manager to determine in-office time based on business need. 

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