Senior DevSecOps Engineer, Linux Administrator

ActioNet, Inc.

. Provide senior-level technical operational support, administration, and maintenance for production applications, middleware platforms, and infrastructure .

Posted 10/20/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in managing Linux-based systems and applications, with a strong focus on security compliance, operational support, and automation. Proficient in administering middleware platforms and databases, ensuring high availability and performance through effective monitoring and troubleshooting.

Highest-signal resume keywords

Linux System AdministrationDB2 AdministrationRed Hat Linux ProficiencySSL/TLS Certificate ManagementAnsible Automation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

DB2Red Hat LinuxApacheTomcatInformixBash ScriptingPython ScriptingHTTPTCP/IPLoad Balancing

Soft Skills

CommunicationCollaborationAnalytical SkillsTroubleshootingDocumentation

Tools & Technologies

Trend Micro Deep SecuritySumo LogicBurp Suite ScannerHP FortifyJIRAConfluence

Certifications & Qualifications

Red Hat Certified Systems Administrator

Industry Keywords

CIS BenchmarksDISA STIGsAgile PrinciplesSAFe FrameworkCompliance Monitoring

Tech Stack

Tools & technologies

AnsibleApacheAWSCloudDNSFirewallsLinuxNFSNGINXPythonSMTPTCP/IPUnix

About the role

Key responsibilities & impact

Provide senior-level technical operational support, administration, and maintenance for production applications, middleware platforms, and infrastructure
Administer DB2, including data ingestion, connectivity, access provisioning, and troubleshooting
Monitor LDAP health and disaster-recovery replication, including replication status, database growth, disk utilization, and service issues
Design and build LDAP DR replication pipelines and resolve replication failures and ISVD/DB2 defects
Support RHEL 8, JBoss, WebSphere, Nginx, NFS, and related middleware
Renew and configure SSL/TLS certificates and harden configurations
Review and remediate vulnerabilities across operating systems, middleware, databases, and LDAP
Lead security compliance activities, including ATO evidence gathering, network flow diagrams, and CJIS/NCIC-related log handling
Establish secure configuration baselines using CIS Benchmarks and DISA STIGs, with periodic compliance assessments and documented deviations
Monitor applications, infrastructure, and service alerts
Maintain Ansible automation for service start, stop, validation, and health checks
Improve monitoring, reliability, and operational processes
Participate in troubleshooting and outage sessions involving applications, databases, infrastructure, and performance
Perform software deployments, upgrades, patch management, and system changes
Document problems, resolutions, procedures, and technical processes
Develop automation to reduce redundancy and user error
Collaborate with cross-functional and infrastructure teams on operational support, deployments, and projects
Review logs and perform backup, verification, and restoration of system and application data
Deploy and maintain infrastructure resources supporting products and services at scale
Install RHEL Linux and configure Apache, Tomcat, and Informix server components
Build and maintain operating system images according to industry best practices and security standards
Support portal end users with account configuration and related capabilities
Provide technical support to external client administrators managing client-hosted infrastructure
Monitor compliance and regulatory controls and remediate security and network-scanning findings
Assist with SSL certificate installation and troubleshooting
Participate in on-call and after-hours support and system changes

Requirements

What you’ll need

5+ years of experience managing systems and applications running on Linux operating systems, including Unix server setup, deployment, and maintenance
Bachelor's degree in Computer Science, Computer Programming, Computer Engineering, or relevant computer-based major; relevant experience may be considered in lieu of degree
Proficiency with Red Hat Linux, Apache, Tomcat, and Informix deployment and maintenance
Proficiency with Bash or Python scripting/coding
Strong knowledge of HTTP, SMTP, firewalls, DNS, TCP/IP, and load balancing concepts
Working experience with Trend Micro Deep Security, Sumo Logic, Burp Suite Scanner, and HP Fortify is an asset
Working knowledge of software build processes and a strong security-first mindset
Preferred: Red Hat Certified Systems Administrator
Preferred: Working experience with DB2 and AWS Cloud
Strong communication, collaboration, analytical, troubleshooting, organizational, and documentation skills
Experience collaborating with developers, testers, systems engineers, and DBAs
Ability to work independently and across multiple teams
Familiarity with Agile principles, SAFe Framework, JIRA, and Confluence
Ability to plan, facilitate, and participate in system and platform upgrades, service, and preventative maintenance activities
Customer service focus, work ethic, attention to detail, written and soft skills
Candidates must be located within the continental US

Benefits

Comp & perks

Self-driven learning potential
Equal opportunity employer committed to diversity
Tools and support to develop skills, experience, and career
Corporate culture focused on mutual success for customers, employees, and communities
Top Workplace recognition
Customer retention and mission-driven work environment