The Role 

We’re seeking a Site Reliability Engineer to join our US-based SRE team of 10 engineers, part of a global SRE organization of 35+ professionals responsible for the reliability, scalability, and performance of our multi-tenant SaaS platform. In this role, you’ll work hands-on with large-scale production systems, collaborating with experienced engineers while helping drive automation, observability, and reliability improvements across the platform.

This is an exciting opportunity for someone moving from systems administration or DevOps into SRE, or for an early-career SRE looking to deepen their expertise across a broad and modern technology stack—all while supporting a platform used by millions of users worldwide.

What You'll Do 

• Improve platform reliability and availability by participating in our on-call rotation, learning from real production incidents, and helping evolve our incident response and post‑incident practices

• Increase delivery speed and consistency through infrastructure and deployment automation using Terraform, Ansible, and Azure DevOps

• Reduce time to detect and resolve issues by building actionable monitoring, alerting, and dashboards that improve visibility into system health and performance

• Enable scalable growth by designing and operating infrastructure that supports a rapidly expanding global customer base across Azure and on‑premises environments

• Empower engineering and support teams by delivering self-service tools, automation, and guardrails that allow safe and efficient production operations

• Strengthen a culture of reliability and continuous improvement through agile collaboration, knowledge sharing, blameless postmortems, and cross‑team initiatives

Our Technology 

You'll work in a hybrid cloud environment with infrastructure spanning Azure and on-premises data centers. Our stack includes Kubernetes, PostgreSQL, Elasticsearch/OpenSearch, Kafka, Redis, and modern observability tools (Prometheus, Grafana, OpenTelemetry). Automation is central to how we work: Terraform and Ansible for infrastructure, Azure DevOps for CI/CD. 

What We're Looking For 

• 3+ years in a Site Reliability, DevOps or a related role supporting production systems

• 2+ years of hands-on experience operating and maintaining Linux systems in live production environments (Windows server experience is a plus) 

• Bachelor's degree in Computer Science or related field preferred (equivalent experience considered)

• Practical experience with Infrastructure as Code tools such as Terraform, Ansible, Chef, Puppet, or similar

• A solid foundation in networking concepts, including TCP/IP, DNS, firewalls, and proxying

• Experience working with relational and/or NoSQL databases in production environments

• Scripting proficiency in one or more languages such as Python, Bash, or PowerShell

Schedule & On-Call 

This is a hybrid role requiring at least two days onsite in Middleton, WI per week. The team primarily works standard business hours (Monday–Friday), with flexibility to support collaboration and focused work.

The role includes participation in a rotating, well‑balanced on‑call schedule designed to be sustainable and predictable. On‑call responsibilities are compensated, including additional pay and per‑incident compensation, and are supported by strong documentation, escalation paths, and a collaborative team approach. On‑call coverage consists of:

• One evening approximately every two weeks (5–9pm CT)

• One weekend approximately every 6–8 weeks (Friday 5pm – Sunday 7pm CT)

Why Join Us 

• Gain experience across a diverse, modern tech stack with mentorship from a global team 

• Clear career development path with promotion opportunities and access to roles across Esker 

• Work on systems at meaningful scale supporting major enterprise customers 

• Collaborative agile environment with emphasis on knowledge sharing and psychological safety