Systems Administrator – AWS Cloud Operations & Security (On-call)

The Systems Administrator is responsible for the installation configuration operation maintenance monitoring and security of enterprise infrastructure and AWS cloud environments. This position supports Windows and Linux servers cloud services web applications databases and security tools to ensure system availability performance and compliance with organizational and regulatory requirements.

Key Responsibilities

• Administer and maintain AWS cloud infrastructure including ALB EC2 S3 CloudFront ECS IAM VPC Route 53 Lambda Systems Manager CloudWatch Config Security Hub GuardDuty and AWS Backup.

• Install configure maintain and troubleshoot Windows Server and Linux operating systems.

• Administer core infrastructure services including Active Directory DNS IIS FTP file services and remote access solutions.

• Administer and manage several ColdFusion servers with SOLR search. This includes administration and patch management.

• Monitor cloud resources operating systems and applications for availability performance security and cost optimization.

• Implement and maintain AWS security best practices including IAM least-privilege access security groups network segmentation logging and monitoring.

• Support Infrastructure as Code (IaC) and automation initiatives using Terraform and AWS-native tools.

• Perform routine patch management vulnerability remediation system hardening and maintenance activities.

• Assist with MySQL database administration and troubleshooting.

• Support backup recovery disaster recovery and business continuity procedures.

• Maintain technical documentation standard operating procedures and system diagrams.

• Participate in on-call support maintenance windows and incident response activities as required.

Minimum Qualifications

• Minimum 5 years of experience administering Windows and/or Linux server environments.

• Minimum 2 years of experience administering AWS cloud environments.

Preferred Qualifications

• Bachelors degree in Information Technology Computer Science Information Systems or related field; or equivalent experience.

• Experience with AWS services including ALB ECs EC2 S3 IAM VPC CloudWatch Systems Manager and Security Groups.

• Experience supporting web applications using IIS and/or Apache.

• Familiarity with MySQL databases.

• Experience with security monitoring vulnerability remediation patch management and system hardening.

• Working knowledge of PowerShell Bash or Python scripting.

• Understanding of cybersecurity frameworks such as NIST SP 800-53 Rev. 5 and FISMA.

• Strong analytical troubleshooting and communication skills.

• AWS Certified Solutions Architect Associate SysOps Administrator or Security Specialty certification.

• Experience supporting FedRAMP FISMA or other regulated environments.

• Experience with Splunk Enterprise Microsoft Sentinel Security Hub GuardDuty and AWS Config.

• Experience with AWS Systems Manager Patch Manager and Session Manager.

• Experience with ColdFusion and SOLR Search Engine.

• Experience with Terraform and Infrastructure as Code methodologies.

• Experience supporting serverless architectures using AWS Lambda API Gateway and CloudFront.

• Experience with Docker Amazon ECS and/or Amazon EKS.

• Experience supporting Authority to Operate (ATO) environments and security audits.

Professional Skills

• Excellent written and verbal communication skills.

• Strong customer service and stakeholder engagement skills.

• Ability to work independently and collaboratively within a team environment.

• Strong organizational analytical and problem-solving capabilities.

• Ability to manage multiple priorities in a fast-paced environment.

• Commitment to operational excellence security and continuous improvement.

Working at ICF

Pay Range - There are multiple factors that are considered in determining final pay for a position including but not limited to relevant work experience skills certifications and competencies that align to the specified role geographic location education and certifications as well as contract provisions regarding labor categories that are specific to the position.

The pay range for this position based on full-time employment is: