Senior / Lead Site Reliability 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 Zelis is seeking a highly skilled and experienced Senior / Lead Site Reliability Engineer (SRE) to join our Site Reliability Engineering team. This role is ideal for a technically strong, automation-focused engineer who thrives on solving complex problems, improving production reliability, and building scalable solutions that reduce operational overhead. The successful candidate will bring deep technical expertise in PowerShell, .NET applications, AWS cloud infrastructure, New Relic, and Splunk, combined with a strong understanding of Site Reliability Engineering principles and modern operational practices. As a senior technical contributor, you will play a critical role in advancing Zelis's enterprise reliability strategy by improving application performance, strengthening observability, automating operational processes, and partnering with engineering teams to design and maintain highly available, resilient systems. We are looking for an engineer who goes beyond monitoring systems and responding to incidents - someone who understands how applications work, can diagnose complex technical issues, identifies opportunities for automation, and proactively engineers solutions that prevent incidents before they occur. This position requires a combination of software engineering expertise, production operations experience, cloud engineering knowledge, and technical leadership.

Key Responsibilities

Site Reliability Engineering & Operational Excellence

· Champion Site Reliability Engineering principles and best practices across the Zelis technology organization.

· Establish and improve Service Level Indicators (SLIs), Service Level Objectives (SLOs), and reliability measurements.

· Identify systemic reliability risks and develop engineering solutions to eliminate recurring operational issues.

· Reduce manual operational toil through automation, self-healing capabilities, and improved engineering practices.

· Collaborate with application development, infrastructure, cloud engineering, and security teams to improve production readiness.

· Drive continuous improvement through measurable reliability, performance, and operational efficiency outcomes.

Automation & Software Engineering

· Design, develop, and maintain advanced PowerShell scripts, automation frameworks, and operational tooling .

· Troubleshoot and optimize enterprise applications built on Microsoft .NET and C# technologies .

· Analyze application behavior, dependencies, configuration, and performance to identify underlying technical issues.

· Partner with software engineering teams to improve application reliability, error handling, logging, and operational supportability.

· Develop reusable automation and engineering solutions that reduce repetitive manual intervention.

· Integrate automation into CI/CD pipelines and operational workflows.

Observability, Monitoring & Performance Engineering

· Serve as a technical subject matter expert in New Relic and Splunk , driving effective implementation and adoption of observability practices.

· Design and improve application performance monitoring (APM), infrastructure monitoring, distributed tracing, logging, and alerting.

· Develop meaningful dashboards, alerts, and service health indicators that provide actionable operational insights.

· Analyze application telemetry, logs, metrics, and traces to identify performance bottlenecks and reliability concerns.

· Improve proactive detection capabilities while reducing alert fatigue and unnecessary operational noise.

· Support enterprise observability standardization, including monitoring coverage, alert ownership, and operational readiness.

· Optimize observability configurations and telemetry consumption to balance visibility, effectiveness, and cost.

AWS Cloud & Infrastructure Reliability

· Support and improve production workloads operating within Amazon Web Services (AWS) .

· Partner with cloud engineering teams to improve infrastructure design, monitoring, and resilience.

· Identify opportunities to optimize AWS resource utilization, performance, and operational costs.

· Promote Infrastructure as Code (IaC), automated deployments, and repeatable infrastructure management practices.

Incident Management & Problem Resolution

· Provide advanced technical leadership during critical production incidents and complex service disruptions.

· Perform deep technical troubleshooting across applications, infrastructure, cloud services, and integrated systems.

· Collaborate with Major Incident Management teams to accelerate service restoration and minimize business impact.

· Lead or contribute to technical root cause analysis and post-incident reviews.

· Translate incident findings into actionable engineering improvements that prevent recurrence.

· Improve incident detection, diagnosis, mitigation, and recovery through automation and observability.

· Develop and maintain operational runbooks, troubleshooting documentation, and automated remediation procedures.

· Participate in production support and on-call responsibilities as required.

Technical Leadership & Collaboration

· Serve as a senior technical resource and trusted advisor for reliability engineering practices.

· Mentor engineers and promote a culture of automation, ownership, and continuous improvement.

· Partner with application development teams to improve software reliability throughout the development lifecycle.

· Influence architectural and operational decisions through technical expertise and data-driven recommendations.

· Lead complex technical initiatives involving multiple engineering teams and technology platforms.

· Communicate technical findings, risks, and recommendations effectively to engineering teams and technology leadership.

· Drive engineering improvements that deliver measurable reductions in incidents, recovery times, and operational effort.

Required Qualifications

Technical Experience

· 7+ years of experience in software engineering, systems engineering, production operations, DevOps, or Site Reliability Engineering.

· 3+ years<