Software Engineer

US MO St. Louis (Corp) US MO Remote US IL Remote Full time

JR111789

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 We are seeking a Software Engineer with experience with C# and SQL to join our Tier 2 Production Support Engineering team supporting a large, distributed healthcare payment platform. This high-impact role focuses on troubleshooting and resolving production issues while collaborating with engineering teams and occasionally working directly with customers. The position participates in a 24/7 on-call rotation and is primarily hybrid/remote, with candidates expected to be located in the St. Louis area and attend on-site training. What You'll Do: Troubleshoot, diagnose, and resolve complex production issues across a large, distributed healthcare platform. Investigate application behavior using SQL, application logs, and monitoring tools. Analyze and troubleshoot data issues. Debug and Diagnose integrations (API, SSO) Develop and implement code fixes, utilities, automation, and other solutions to improve system reliability and supportability. Perform root-cause analysis for production incidents and help identify permanent solutions for recurring issues. Collaborate with software engineering, infrastructure, database, operations, and other technical teams to resolve issues spanning multiple systems. Communicate clearly with technical and non-technical stakeholders and occasionally work directly with healthcare customers to investigate complex issues. Take ownership of production issues from initial investigation through resolution and follow-up. Participate in a rotating 24/7 on-call schedule supporting business-critical production systems. What You'll Bring to Zelis: 1–3 years of professional software engineering experience Experience developing, debugging, or supporting applications using C# .NET. Working knowledge of SQL including the ability to query and analyze data for troubleshooting. Strong debugging, analytical, and problem-solving skills with an interest in understanding how complex systems work. Ability to read existing code and trace application behavior across multiple services and system components. Strong communication skills and the ability to work effectively with engineers, business partners, and customers. Ability to prioritize and take ownership in a fast-paced, high-impact production environment. Willingness to participate in a rotating 24/7 on-call schedule. Preferred: Experience working with APIs and service integrations. Familiarity with SSO, authentication, and authorization concepts. Familiarity with Splunk, Logic Monitor, New Relic, and other monitoring tools 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 $101,600.00 - $139,700.00 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 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. 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. Zelis maintains a transparent, fee-free recruitment process. All genuine offers originate from our Talent Acquisition team using the “@zelis.com” domain. We do not use WhatsApp or personal emails for recruitment. Forward any suspected fraud to View email address on click.appcast.io for prompt investigation. Thank you for staying vigilant. Zelis