Sr. Principal Software Engineer

Sr. Principal Software Engineer

At Zelis, we Get Stuff Done. So, let's get to it!

Zelis is modernizing the healthcare financial experience across payers, providers, and healthcare consumers. We serve more than 750 payers, including the top five national health plans, regional health plans, TPAs and millions of healthcare providers and consumers across our platform of solutions. Zelis sees across the system to identify, optimize, and solve problems holistically with technology built by healthcare experts – driving real, measurable results for clients.

We are seeking a Sr. Principal Software Engineer to design, build, and operate core backend systems while remaining comfortable working across the entire stack when needed. This role is for an engineer with deep backend expertise who enjoys understanding how systems fit together, from APIs and data stores to deployment, infrastructure, and user-facing components. You will influence technical direction, improve engineering practices, and help ensure our software is scalable, reliable, and easy to operate 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.

Required Qualifications

• 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.

Preferred / Nice-to-Have Qualifications

• 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.

Technologies We Use

TypeScript, Node.js, Angular, SASSPostgreSQL, ElasticsearchAWS, TerraformCI/CD toolingAI-assisted development tools (e.g., Claude)

Please note at this time we are unable to proceed with candidates who require visa sponsorship now or in the future.

Location and Workplace Flexibility

We have offices in Atlanta GA, Boston MA, Morristown NJ, Plano TX, St. Louis MO, St. Petersburg FL, and Hyderabad, India. We foster a hybrid and remote friendly culture, and all our employee's work locations are based on the needs of the position and determined by the Leadership team. In-office work and activities, if applicable, vary based on the work and team objectives in accordance with Company policies.

Equal Employment Opportunity Zelis is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. We welcome applicants from all backgrounds and encourage you to apply even if you don't meet 100% of the qualifications for the role. We believe in the value of diverse perspectives and experiences and are committed to building an inclusive workplace for all.

Accessibility Support We are dedicated to ensuring our application process is accessible to all candidates. If you are a qualified individual with a disability or a disabled veteran and require a reasonable accommodation with any part of the application and/or interview process, please email View email address on click.appcast.io.

Disclaimer

The above statements are intended to describe the general nature and level of work being performed by people assigned to this classification. They are not to be construed as an exhaustive list of all responsibilities, duties, and skills required of personnel so classified. All personnel may be required to perform duties outside of their normal responsibilities, duties, and skills from time to time.