Sr Software Engineer - Frontend (React/Node)

🏢 About Zelis

Zelis is modernizing the healthcare financial experience in the United States. We serve more than 750 payers—including the top five national health plans—and millions of providers and consumers. Our technology is built by healthcare experts to identify, optimize, and solve problems holistically, driving measurable results for our clients.

🎯 The Role

As a Senior Software Engineer, you will design, develop, and maintain high-performance web applications. You will be a key contributor to our mission, working at the intersection of frontend excellence and backend scalability to simplify the complex healthcare financial journey for patients and providers alike.

🛠️ Tech Stack

• React.js
• Node.js & Express.js
• TypeScript & ES6+
• PostgreSQL
• Amazon Web Services (AWS)
• (Nice to have) Ruby on Rails, Docker, Kubernetes

💼 What You'll Do

• Build responsive, user-friendly interfaces using React.js that handle intricate healthcare data.
• Develop complex RESTful APIs and backend services using Node.js.
• Optimize production applications for maximum speed, scalability, and system stability.
• Write clean, well-documented code that serves as a benchmark for the team.
• Mentor junior developers and lead high-impact code reviews.
• Debug and troubleshoot mission-critical systems in a fast-paced environment.

✅ What You'll Need

• 5+ years of experience in full-stack or specialized frontend engineering roles.
• Expert-level command of JavaScript, TypeScript, and the modern React ecosystem.
• Strong fundamentals in SQL and relational database design.
• Experience deploying and managing services within AWS environments.
• A leadership mindset with the ability to take ownership of complex technical modules.

🌟 Why Zelis?

• Global exposure with a high-stakes, award-winning culture.
• Hybrid work flexibility and comprehensive healthcare benefits.
• Professional growth opportunities through leadership development programs.
• A collaborative and inclusive workplace that celebrates cultural diversity.