Sr. Principal Software Engineer

Position Overview

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.

• 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.

• 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 Type Script, Node.js, Postgre
  
  SQL, 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.

• Type Script, Node.js, Angular, SASS
• Postgre
  
  SQL, Elasticsearch
• AWS, Terraform
• CI/CD tooling
• AI‑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. Our offices are located 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, with work locations determined by the needs of the position and the leadership team.

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 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