[Hiring] Senior Unix/Linux Admin @Parsons Corporation

Role 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.

Requirements

• Security Clearance Requirement: None

Benefits

• Medical, dental, vision.
• Paid time off.
• Employee Stock Ownership Plan (ESOP).
• 401(k).
• Life insurance.
• Flexible work schedules.
• Holidays to fit your busy lifestyle!