Sr. Infrastructure Engineer

Mainstay Maritime; Duluth (MN); On-site; USD 120,000 - 180,000; Full time

Job summary

Mainstay Maritime is seeking a senior IT Infrastructure Engineer to design, implement, and optimize the core IT backbone for vessels and offices. You will troubleshoot complex issues, enforce security controls, and guide scalable, reliable infrastructure across locations.

The role requires strong automation skills (Terraform/Ansible/Python), advanced networking expertise, and travel to support onboard systems and onshore offices. A background in security and vulnerability management is essential.

Qualifications

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

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

Advanced networking

Enterprise storage

Virtualization

Security best practices

Analytical thinking

Education

Bachelor’s degree in computer science or related field

Tools

Terraform

Ansible

Python

Job description

Description Provides senior-level technical expertise that is needed to implement, maintain and optimize core IT infrastructure for all vessels and offices. Ability to troubleshoot complex issues, and ensure the reliability, security, and scalability of business-critical IT infrastructure.

• 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.

Job Type

Full-time

Description Provides senior-level technical expertise that is needed to implement, maintain and optimize core IT infrastructure for all vessels and offices. Ability to troubleshoot complex issues, and ensure the reliability, security, and scalability of business-critical IT infrastructure.

• 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.

Requirements

Preferred Education / Experience

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

Preferred Knowledge / Ability

• Advanced networking, enterprise storage, hyper-converged systems, virtualization, satellite communications & connectivity.
• Proven experience with IAC and automation tools (e.g., Terraform, Ansible, Python).
• Exceptional analytical and problem-solving skills to tackle complex technical challenges.
• Strong communication and collaboration skills, capable of articulating complex technical concepts to both technical peers and non-technical stakeholders.
• Ability to identify, define, and solve problems, set priorities, and implement solutions effectively with minimal direction or guidance.
• Ability to multitask and work well under pressure within deadlines; excellent organizational skills.
• Must be able to obtain and maintain a Transportation Worker Identification Credential (TWIC) to access secure areas of vessels.
• Some travel required.