Senior Site Reliability Engineer II

Lumin Digital•Madison, MS

5d•$170,000 - $230,000

About The Position

The Senior Site Reliability Engineer (SRE) is a developer with a strong operations mindset who ensures the reliability, availability, and scalability of Lumin Digital’s applications. The role focuses on eliminating manual tasks through automation, maintaining Service Level Objectives (SLOs), and working closely with Software Engineers to implement and maintain best practices for large-scale systems. The ideal candidate enjoys solving complex problems, automating processes, and building resilient systems. During the first 30 days, the engineer will learn the architecture, monitoring tools, and CI/CD pipelines and begin participating in SRE team activities and resolving basic operational issues. By 90 days, the engineer is expected to own monitoring and alerting systems, improve automation and incident response, and contribute to SLO reporting. Within a year, the role is expected to deliver measurable improvements in reliability, scalability, and automation, take a leadership role in SRE best practices, and mentor junior team members. The position has no supervisory responsibility. Travel is minimal, generally 12 days or less per year, with approximately two team gatherings annually. Lumin Digital is a cloud-native digital banking solutions company serving credit unions and banks.

Requirements

At least 5 years of experience as a software engineer.
Experience with TypeScript and Go, or experience in other programming languages.
Bachelor’s degree or higher in Computer Science, Engineering, or equivalent experience.
Exceptional full-stack troubleshooting skills, particularly for system-level issues.
Expertise in configuration management systems and Infrastructure-as-Code principles.
Strong understanding of networking protocols and components, including HTTP, DNS, TCP/IP, and load balancing.
Experience with cloud hosting platforms.
Hands-on experience with Terraform, Kubernetes, and containerization technologies such as Docker.
Solid understanding of CI/CD workflows and ability to architect robust pipelines.
Familiarity with monitoring and alerting strategies, including self-healing and escalation processes.
Commitment to improving on-call experiences through resilient and automated systems.
Strong problem-solving skills focused on automation and operational efficiency.
Security-minded approach focused on protecting data integrity and resilience.
Ability to support local development environments with Docker Desktop on macOS and Windows.
Excellent written and verbal communication skills.
Proven ability to work within an agile scrum team.
Ability to participate in a 24x7 on-call rotation.
While performing job duties, regularly sit; use hands to type, handle, or feel; and talk or hear. Close vision is required, and the employee must occasionally be able to lift or move up to 25 pounds. Reasonable accommodation may be requested through Human Resources.

Nice To Haves

AWS cloud experience is preferred; Google Cloud and Azure experience are also valued.
AWS certifications such as SysOps or Solutions Architect are preferred but not essential.
Experience with Amazon RDS, EKS, and CloudWatch.

Responsibilities

Design, build, test, and document software solutions to site reliability challenges.
Design, implement, and manage CI/CD pipelines to improve deployment efficiency.
Monitor and resolve issues in all environments to meet SLO and uptime targets.
Collaborate with Software Engineers to address SRE concerns during feature design and deployment.
Build, maintain, and support local development environments on macOS and Windows.
Participate in capacity planning and demand forecasting to address performance bottlenecks and scalability needs.
Perform change management to maintain system stability and minimize disruptions.
Generate uptime and SLO reports for internal review and leadership visibility.
Engage in SRE scrum team activities and support agile development processes.
Ensure security best practices are followed to safeguard data integrity and system resilience.
Participate in a 24x7 on-call rotation.
Perform other duties as assigned.
Take ownership of monitoring and alerting systems, improve automation and incident response processes, and contribute to SLO reporting.
Help lead SRE best practices and mentor junior team members.