Sr. Principal Software Engineer

Zelis is modernizing the healthcare financial experience across payers, providers, and healthcare consumers. The Sr. Principal Software Engineer will design, build, and operate core backend systems, influence technical direction, and improve engineering practices to ensure scalable and reliable software in the cloud.

Responsibilities:

• Design, develop, test, deploy, and maintain high-quality backend services and supporting systems
• Work across the stack as needed to deliver complete, end-to-end solutions
• Own services in production, including deployment, monitoring, performance, and operational health
• Collaborate with product managers and designers to translate functional requirements into technical solutions
• Drive architectural decisions with a focus on scalability, reliability, security, and maintainability
• Improve development and delivery workflows, including CI/CD pipelines and infrastructure automation
• Partner with engineers to identify and resolve production issues and system bottlenecks
• Mentor engineers and provide technical leadership through design reviews, code reviews, and architectural guidance
• Help establish best practices for operational readiness, observability, and system ownership

Requirements:

• Bachelor's degree in computer science or a related technical field, or equivalent practical experience
• 8+ years of professional software engineering experience, primarily focused on backend systems
• Proven ability to deliver reliable, maintainable software in production environments
• Experience building and operating web-based services and APIs
• Experience working with cloud platforms and modern infrastructure environments
• Familiarity with Infrastructure as Code concepts and tooling
• Experience contributing to or improving CI/CD pipelines and automated delivery processes
• Strong written and verbal communication skills
• Collaborative mindset, positive attitude, and desire to continuously learn and improve
• Experience with TypeScript, Node.js, PostgreSQL, or similar backend technologies
• Familiarity with frontend frameworks such as Angular
• Experience with containerization, service-oriented architectures, or distributed systems
• Exposure to observability tooling (logging, metrics, tracing)
• Experience using AI-assisted tools to enhance development productivity or operational workflows