Senior AWS Cloud & Linux Systems Engineer (IaC, Security)

DMSi Software; Omaha (NE); On-site; USD 120,000 - 150,000; Full time

Job summary

Omaha, NE-based DMSi Software seeks a Sr Systems Engineer to own AWS cloud environments and Linux systems hosting our hosted SaaS applications. You will automate infrastructure, harden the Linux fleet, and drive security and reliability as we scale.

You will work with security, development, and support teams to design repeatable deployments, troubleshoot incidents, and contribute to postmortems, on-call rotes, and architecture decisions that impact customers.

Qualifications

• Bachelor’s degree in Computer Science, IT, Engineering, or a related field.
• 5+ years of Linux systems administration in a production environment.
• 3+ years of hands-on experience building and managing AWS infrastructure.
• Exposure to Progress OpenEdge, PostgreSQL, and Kafka is a plus.
• AWS certification (Solutions Architect, SysOps Administrator, or similar) preferred.
• Experience operating within a SOC 2 or similar compliance framework preferred.
• Experience supporting multi-tenant SaaS environments at scale preferred.

Responsibilities

• Build, manage, and scale AWS cloud environments supporting DMSi products including Frameworks, ACC, and our data platform.
• Design and implement infrastructure as code using Terraform for infrastructure and Ansible for OS-level configuration, replacing manual builds with repeatable, automated deployments.
• Administer, patch, and harden Linux servers across the fleet, including planning and executing OS version upgrades.
• Troubleshoot and resolve infrastructure incidents at the OS, network, and cloud layers, and contribute to root cause analysis and postmortems.
• Partner with security to remediate vulnerabilities and apply hardening standards across cloud and Linux environments.
• Support networking configuration and troubleshooting, including firewall rules, routing, and connectivity issues, in coordination with the broader team.
• Document build standards, runbooks, and architecture decisions so the environments you build are maintainable by the rest of the team.
• Participate in an on‑call rotation and respond to production issues affecting cloud or Linux infrastructure.
• Collaborate with development, security, and support teams to align infrastructure work with product and customer needs.

Skills

AWS Core services

Linux administration

Networking fundamentals

Scripting (Bash/Python)

Documentation

On-call/incident response

Education

Bachelor’s Degree in Computer Science, Information Technology, Engineering, or a related field

Tools

Terraform

Ansible

PostgreSQL

Kafka

Progress OpenEdge

Job description

Omaha, NE-based DMSi Software seeks a Sr Systems Engineer to own AWS cloud environments and Linux systems hosting our hosted SaaS applications. You will automate infrastructure, harden the Linux fleet, and drive security and reliability as we scale.

You will work with security, development, and support teams to design repeatable deployments, troubleshoot incidents, and contribute to postmortems, on-call rotes, and architecture decisions that impact customers.