Senior Unix/Linux Admin

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Job Description:

This job opening is for an experienced Unix/Linux Administrator to provide systems and middleware support services. The ideal candidate will be responsible for managing and maintaining Unix-based systems and leveraging AWS services to ensure high availability, scalability, and security of our infrastructure. Remote role preferred candidate to be located on East Coast.

Key Responsibilities

Unix System Administration:

• Install, configure, and maintain Unix/Linux operating systems (e.g., Red Hat, CentOS, Amazon Linux, Ubuntu, Solaris).
• Assist with installation, configuration, and maintenance of middleware applications (e.g., WebSphere Application Server, Tomcat, Oracle Application Server)
• Perform system patching, upgrades, and performance tuning.
• Manage user accounts, permissions, and security.
• Troubleshoot and resolve hardware and software issues.
• Implement, maintain and test backup and recovery procedures.
• Monitor system performance and availability.

AWS Cloud Administration:

• Deploy, manage, and maintain Unix/Linux instances in AWS (EC2).
• Configure and manage AWS services such as VPC, IAM, S3, RDS, and CloudWatch.
• Implement and maintain infrastructure as code (IaC) using tools like CloudFormation or Terraform.
• Automate deployment and configuration tasks using scripting languages (e.g., Bash, Python).
• Monitor AWS resources and optimize costs.
• Implement and maintain AWS security best practices.

Automation and Scripting:

• Develop and maintain scripts for system administration and automation tasks.
• Utilize configuration management tools (e.g., Ansible) to automate system configuration.
• Implement CI/CD pipelines for application deployments.

Troubleshooting and Support:

• Provide technical support to developers and other teams.
• Diagnose and resolve complex system and application issues.
• Participate in afterhours systems and middleware deployments
• Participate in weekly on-call rotation.

Documentation:

• Create and maintain documentation for system configurations, procedures, and troubleshooting guides.

Qualifications:

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Minimum of 5 years of experience as a Unix/Linux System Administrator.
• Strong knowledge of Unix/Linux operating systems (e.g., Red Hat, CentOS, Ubuntu, Solaris).
• Working experience with email delivery (postfix, exim, DKIM, SPF, DMARC) and middleware (Tomcat, WebSphere Application Server, Oracle Application Server, Pentaho, Actuate).
• Hands-on experience with AWS services and cloud architecture.
• Experience with infrastructure as code (IaC) tools (e.g., CloudFormation, Terraform).
• Proficiency in scripting languages such as Bash, or Python.
• Experience with configuration management tools (e.g., Ansible, Puppet, Chef).
• Familiarity with containerization technologies (e.g., Docker, Kubernetes, AWS ECS/EKS, Fargate) is a plus.
• Knowledge of database management systems (e.g., MySQL, PostgreSQL, Oracle).
• Experience with monitoring and logging tools (e.g., CloudWatch, Grafana, Loki).
• Understanding of networking concepts and protocols.
• Excellent problem-solving skills and attention to detail.
• Strong communication and teamwork abilities.

Security Clearance Requirement:

None

This position is part of our Critical Infrastructure team.

For more than 80 years, our experts have designed and delivered the critical infrastructure that connects and protects communities around the world. We work in collaborative teams, both within the company and with our partners and customers, to plan, design, build, and modernize infrastructure. We take special pride in projects and solutions that improve communities as well as people’s quality of life by promoting economic growth, enhancing mobility, and increasing sustainability and resiliency. Powered by our people, we provide the imagination necessary to support our customers’ visions—and to help them see what's next!

Salary Range: $88,400.00 - $154,700.00

We value our employees and want our employees to take care of their