Maritime Infrastructure Engineer – Networks & Security

Mainstay Maritime; Duluth (MN); On-site; USD 110,000 - 160,000; Full time

Job summary

Mainstay Maritime in Duluth, MN, seeks a Sr. Infrastructure Engineer to lead the design, deployment, and optimization of IT infrastructure across vessels and offices. You will build and support complex network solutions that ensure reliability and security for critical operations.

You will implement automation, manage vulnerability programs, monitor threats, and collaborate with the business systems team to provide access to essential applications while supporting travel requirements.

Qualifications

• Bachelor’s degree in computer science or a related field is preferred.
• 7+ years of experience in multiple core infrastructure technologies is preferred.
• Recognized Networking Certification (e.g., CCNA, Fortinet NSE, Palo Alto NSE) or equivalent experience.
• A combination of education and experience is acceptable.

Responsibilities

• Build, configure, and deploy complex network and infrastructure solutions that support vital business operations.
• Administer, maintain, and support core infrastructure to ensure reliability, scalability, and security. Implement network security policies and controls that monitor for threats, perform other security-related tasks that enhance data security.
• Maintain policy and process for infrastructure vulnerability management, penetration testing, and compliance.
• Leverage automated workflows for infrastructure provisioning, deployment, and centralized management to promote efficiency, scalability, and cybersecurity.
• Investigate and resolve complex technical issues to minimize operational downtime and protect against data loss.
• Collaborate with business systems team to ensure vessel and office access to critical business applications and to maintain related onboard workstations.

Skills

Networking

Security

Infrastructure

Automation

Troubleshooting

Collaboration

Education

Bachelor’s degree in computer science or related field

7+ years of experience in core infrastructure technologies

Networking Certification (e.g., CCNA, Fortinet NSE, Palo Alto NSE)

Tools

Terraform

Ansible

Python

Virtualization

Job description

Mainstay Maritime in Duluth, MN, seeks a Sr. Infrastructure Engineer to lead the design, deployment, and optimization of IT infrastructure across vessels and offices. You will build and support complex network solutions that ensure reliability and security for critical operations.

You will implement automation, manage vulnerability programs, monitor threats, and collaborate with the business systems team to provide access to essential applications while supporting travel requirements.