Site Reliability Engineer

Esker; Town of Middleton (WI); On-site; USD 95,000 - 119,000; Full time

Benefits offered by this job

Student loan repayment assistance

Flexible work schedule

Summer hours

Work from home options

Profit sharing options

Paid time off for community outreach

Wellness stipend

Dog-friendly work environment

Job summary

Esker is seeking a Site Reliability Engineer to join its US SRE team in Middleton, WI. You’ll help ensure reliability, scalability, and performance of a multi-tenant SaaS platform, collaborating with engineers while advancing automation and observability across the stack.

The role is ideal for those moving from SysAdmin/DevOps into SRE or early-career SREs seeking breadth across a modern tech stack. Hybrid onsite presence is required in Middleton.

Qualifications

• 3+ years in Site Reliability, DevOps, or a related role.
• 2+ years Linux production experience in live environments.
• Bachelor's degree in Computer Science or related field (equivalent experience accepted).
• Hands-on Infra as Code with Terraform/Ansible/Chef/Puppet or similar.
• Strong networking knowledge: TCP/IP, DNS, firewalls, proxies.
• Experience with relational and/or NoSQL databases in production.
• Scripting in Python, Bash, or PowerShell.

Responsibilities

• Participate in on-call rotation to improve reliability and incident handling.
• Increase delivery speed via deployment automation and IaC tooling.
• Build monitoring, alerting, and dashboards to improve visibility.
• Design and operate scalable infra across Azure and on‑prem environments.
• Deliver self-service tooling and guardrails for safe production ops.
• Promote blameless postmortems and cross‑team collaboration.

Skills

SRE experience

Linux production

Scripting (Python/Bash/PowerShell)

Networking basics

Education

Bachelor's degree in CS or related field

Tools

Terraform

Ansible

Kubernetes

Azure DevOps

PostgreSQL

Job description

Join Esker as a Site Reliability Engineer

Esker is a global leader in AI-powered business solutions for the Office of the CFO. Our Source-to-Pay and Order-to-Cash platform serves 3,000+ customers - including NVIDIA, Whirlpool, Sony, and Trek - supporting 1.2M users and generating $200M+ in annual revenue. Founded in 1985, we've grown to 1,200+ employees worldwide with a culture focused on improving working capital, human relationships, and environmental sustainability. Esker operates in five continents with global headquarters in Lyon, France, and two U.S. locations in Madison, WI, and Denver, CO.

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

Salary Range: $95,000-119,000 + on call pay

Thisposting will close on Wednesday, September 30th at 12 CT.

Employee Benefits

• Student loan repayment assistance


• Flexible work schedule, summer hours, and work from home options


• Profit sharing options


• Paid time off for community outreach and volunteer opportunities


• Yearly stipend for employee wellness, hobbies, or educational activities


• Dog‑friendly work environment


• Competitive salary and benefits package

Come as You Are

Esker is an equal opportunity employer that celebrates diversity and is committed to maintaining an inclusive and mutually respectful work environment. We do not discriminate against any qualified applicants on the basis of: race, color, national origin, religion, age, sex, sexual orientation, gender identity or expression, pregnancy, disability, medical history, military or veteran status, and any other characteristic protected by applicable law.