The Sr Systems Engineer, owns the AWS cloud environments and Linux systems that host DMSi’s hosted SaaS applications. This role builds and manages cloud infrastructure through automation and infrastructure as code, administers and hardens the Linux fleet, and is a primary technical contributor to the availability and security of DMSi’s hosted environments. The role works closely with security, development, and support teams to keep infrastructure reliable as it scales.
RESPONSIBILITIES AND DUTIES:
- 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.
KNOWLEDGE, SKILLS, AND ABILITIES:
Deep, hands-on proficiency with core AWS services (EC2, VPC, IAM, S3, ELB, and related services), sufficient to design and build production environments independently.
Strong Linux systems administration skills (RHEL preferred), including patching, hardening, and OS-level troubleshooting.
Proficiency with infrastructure as code, using Terraform for infrastructure and Ansible for OS-level configuration.
Solid understanding of networking fundamentals: DNS, routing, firewalls, load balancing, and VPN.
Scripting and automation ability (Bash, Python, or similar) to reduce manual, repetitive work.
Clear written and verbal communication, including the ability to document technical work for other engineers.
Ability to work effectively in a fast-paced environment with shifting priorities and direct customer impact.
EDUCATION AND EXPERIENCE:
Bachelor’s Degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent practical experience.
5+ years of experience administering Linux systems in a production environment.
3+ years of hands-on experience building and managing AWS infrastructure.
Exposure to technologies such as 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.
WORK ENVIRONMENT & PHYSICAL DEMANDS:
Normal office environment with use of computers and telephone systems; no unusual physical demands.
Travel to customer locations as needed, including overnight stays, business air travel, and car rentals.
Participation in an on-call rotation, including response to production issues outside normal business hours.
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.
Skills Required
- Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent practical experience
- 5+ years of experience administering Linux systems in a production environment
- 3+ years of hands-on experience building and managing AWS infrastructure
- Deep hands-on proficiency with AWS services including EC2, VPC, IAM, S3, and ELB
- Strong Linux systems administration skills, including patching, hardening, and OS troubleshooting
- Proficiency with Terraform and Ansible for infrastructure automation and configuration management
- Understanding of DNS, routing, firewalls, load balancing, and VPN networking
- Scripting and automation ability using Bash, Python, or similar
- Clear written and verbal communication skills, including technical documentation
- Exposure to Progress OpenEdge, PostgreSQL, and Kafka
- AWS certification such as Solutions Architect or SysOps Administrator
- Experience operating within a SOC 2 or similar compliance framework
- Experience supporting multi-tenant SaaS environments at scale
What We Do
DMSi is bringing new technology and new ideas to the building materials industry through our specialized business management software. From our Omaha offices, we’re revolutionizing one of the largest, most critical sectors in the world. Fortunately, we like a challenge. We have positions for people who like to train on our software, research and solve customer business issues and optimize supply chains with bespoke solutions. We have positions for software engineers, designers, systems engineers, analysts, product owners, and product managers who explore innovative technologies and create human interfaces. We have positions that make our company hum in sales, marketing, human resources, and accounting, which are helping to evolve our brand and our team. What makes us tick is surrounding ourselves with bright, kind, curious people who love the limitless possibilities that the field of enterprise computer software has to offer.
