Senior Software Engineer

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

A Little About Us

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.

At Zelis, AI is woven into the fabric of how we work. Every associate is expected - and empowered - to partner with AI to challenge the status quo, accelerate innovation, and amplify their impact. This is a place for builders with a growth mindset who act with agility, embrace change, and use modern technology to shape smarter solutions, exceptional experiences, and the future of our industry for our clients, customers, and our culture.

A Little About You

You bring a unique blend of personality and professional expertise to your work, inspiring others with your passion and dedication. Your career is a testament to your diverse experiences, community involvement, and the valuable lessons you've learned along the way. You are more than just your resume; you are a reflection of your achievements, the knowledge you've gained, and the personal interests that shape who you are.

Position Overview

Senior Software Engineer - Expert Claim Review

Position Summary

Zelis is seeking a Senior Software Engineer to join the ECR (Expert Claims Review) engineering team. This role will help design, develop, modernize, and support business-critical applications and services used in the claims editing and payment integrity ecosystem.

The ideal candidate is a hands-on senior engineer who is comfortable working across an established enterprise application stack while helping move capabilities toward modern, cloud-based architectures. This individual will take ownership of complex technical problems, deliver high-quality production software, troubleshoot issues across application and data layers, and collaborate closely with Product, QA, Architecture, DevOps, and other engineering teams.

This is an individual contributor role with an expectation of strong technical leadership, independent problem solving, and mentorship of other engineers.

Key Responsibilities

• Design, develop, test, deploy, and support scalable, reliable software supporting ECR and related claims-editing workflows.

• Own complex features and technical initiatives from requirements and design through production deployment and ongoing support.

• Develop and maintain backend services, APIs, database integrations, and application components within the ECR ecosystem.

• Contribute to the modernization of ECR applications and services, including migration of appropriate workloads and capabilities to AWS and cloud-native architectures.

• Work effectively across both existing/legacy application components and newer services as the platform evolves.

• Analyze and optimize application and database performance, including SQL queries, stored procedures, and data-intensive processing.

• Troubleshoot complex production issues, perform root-cause analysis, and implement sustainable solutions rather than short-term fixes.

• Participate in code reviews and promote engineering practices that improve maintainability, reliability, security, observability, and testability.

• Build appropriate automated unit and integration tests and partner closely with QA engineers on overall product quality.

• Collaborate with Product Owners and business stakeholders to understand requirements and translate them into sound technical solutions.

• Partner with Architecture, Cloud/DevOps, Security, Data, and other engineering teams on cross-functional initiatives and integrations.

• Participate in release planning, deployment activities, production support, and incident response for ECR applications.

• Improve engineering documentation, development workflows, deployment processes, and operational runbooks.

• Mentor engineers and provide technical guidance while helping raise engineering standards across the team.

Required Qualifications

• 5+ years of professional software engineering experience, with demonstrated ownership of production enterprise applications.

• Strong experience with C# and .NET/.NET Core application development.

• Strong understanding of object-oriented design, software design patterns, APIs, distributed applications, and service-oriented architectures.

• Strong experience with Microsoft SQL Server, including SQL development, stored procedures, query optimization, and troubleshooting.

• Experience designing and consuming REST APIs and integrating applications with internal and external services.

• Experience developing and supporting applications running in production environments with meaningful availability, performance, and data-integrity requirements.

• Experience with automated testing, source control, code review, CI/CD, and modern software development practices.

• Strong debugging and problem-solving skills with the ability to investigate issues across application, database, infrastructure, and integration boundaries.

• Ability to work independently on ambiguous or complex technical problems while collaborating effectively with a cross-functional Agile team.

• Strong written and verbal communication skills.

Preferred Qualifications

• Hands-on experience with AWS, particularly building or modernizing enterprise applications using AWS services.

• Experience with serverless or event-driven architectures, including technologies such as AWS Lambda.

• Experience modernizing legacy .NET applications into more modular, service-oriented, or cloud-native architectures.

• Experience with application observability, logging, monitoring, and production troubleshooting.

• Experience with healthcare technology, claims processing, claims editing, payment integrity, or healthcare data.

• Experience working with high-volume transactional or data-processing systems.

• Familiarity with secure development practices and applications handling sensitive healthcare information.

• Experience mentoring engineers and providing technical leadership without requiring formal people-management responsibility.

What Success Looks Like

Within the first several months, the Senior Software Engineer will develop a strong understanding of the ECR platform and its claims-processing workflows, independently deliver meaningful product enhancements, and become a trusted technical contributor for production troubleshooting and solution design.

Over time, this engineer will help reduce technical debt, improve the reliability and maintainability of the ECR platform, strengthen engineering practices across the team, and play an important role in modernizing ECR capabilities and moving appropriate workloads toward Zelis' target cloud architecture.

Ideal Candidate

The strongest candidate will combine deep hands-on engineering skills with ownership and technical judgment. We are looking for someone who can move comfortably between diagnosing a difficult SQL or production issue, designing a new service or API, reviewing another engineer's implementation, and helping determine how an existing ECR capability should evolve as the platform is modernized.

Experience in healthcare claims is valuable, but the ability to quickly understand a complex business domain, take ownership of critical systems, and consistently deliver well-engineered solutions is equally important.

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

Zelis is headquartered in the U.S., with multiple locations across the country and in Hyderabad, India. Check out our locations to learn more about our offices. All employee work locations are based on the needs of the position and are determined by the Leadership team. In-office work and activities vary based on work and team objectives in accordance with Company policies.

While location expectations vary by role, candidates within approximately 50 miles of a U.S. office are generally preferred to support collaboration when needed. Our hybrid approach is flexible, and in-office presence is guided by team and business needs rather than a fixed weekly schedule.

Base Salary Range

At Zelis we are committed to providing fair and equitable compensation packages. The base salary range allows us to make an offer that considers multiple individualized factors, including experience, education, qualifications, as well as job-related and industry-related knowledge and skills, etc. Base pay is just one part of our Total Rewards package, which may also include discretionary bonus plans, commissions, or other incentives depending on the role.

Zelis' full-time associates are eligible for a highly competitive benefits package as well, which demonstrates our commitment to our employees' health, well-being, and financial protection. The US-based benefits include a 401k plan with employer match, flexible paid time off, holidays, parental leaves, life and disability insurance, and health benefits including medical, dental, vision, and prescription drug coverage.

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 TalentAcquisition@zelis.com.

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.