Sr Systems Engineer - AWS Cloud & Linux

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:

1. Build, manage, and scale AWS cloud environments supporting DMSi products

including Frameworks, ACC, and our data platform.

2. Design and implement infrastructure as code using Terraform for

infrastructure and Ansible for OS-level configuration, replacing manual

builds with repeatable, automated deployments.

3. Administer, patch, and harden Linux servers across the fleet, including

planning and executing OS version upgrades.

4. Troubleshoot and resolve infrastructure incidents at the OS, network, and

cloud layers, and contribute to root cause analysis and postmortems.

5. Partner with security to remediate vulnerabilities and apply hardening

standards across cloud and Linux environments.

6. Support networking configuration and troubleshooting, including firewall

rules, routing, and connectivity issues, in coordination with the broader

team.

7. Document build standards, runbooks, and architecture decisions so the

environments you build are maintainable by the rest of the team.

8. Participate in an on-call rotation and respond to production issues

affecting cloud or Linux infrastructure.

9. 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.