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 and maintaining Linux-based systems and applications, with a strong focus on security compliance and operational efficiency. Proficient in automation, troubleshooting, and cross-functional collaboration to enhance infrastructure reliability and performance.

Highest-signal resume keywords

Linux Operating System ManagementDB2 AdministrationRed Hat Certified Systems AdministratorBash ScriptingSecurity Compliance Activities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

DB2 AdministrationLinux Operating System ManagementBash ScriptingPython ScriptingApache ConfigurationTomcat ConfigurationInformix Server ManagementSSL/TLS Certificate ManagementDisaster Recovery PlanningVulnerability Remediation

Soft Skills

Strong Communication SkillsCollaboration SkillsAnalytical SkillsTroubleshooting SkillsOrganizational Skills

Tools & Technologies

RHEL 8JBossWebSphereNginxAnsibleTrend Micro Deep SecuritySumo LogicBurp Suite ScannerHP FortifyJIRA

Certifications & Qualifications

Red Hat Certified Systems Administrator

Industry Keywords

CIS BenchmarksDISA STIGsAgile PrinciplesSAFe FrameworkNetwork-Scanning FindingsCompliance ControlsDisaster Recovery ReplicationService AlertsOperational ProcessesClient Products and Services

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 disaster-recovery replication pipelines and resolve replication failures and ISVD/DB2 defects
Administer RHEL 8, JBoss, WebSphere, Nginx, NFS, and related middleware
Renew SSL/TLS certificates and perform configuration hardening
Review and remediate vulnerabilities across infrastructure and application platforms
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
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, infrastructure, platform, development, testing, and client teams
Review system and application logs; back up, verify, and restore system and application data
Deploy and maintain infrastructure resources supporting client products and services at scale
Install RHEL Linux operating systems and configure Apache, Tomcat, and Informix server components
Build and maintain secure operating-system images
Support portal end-users with account configuration and related capabilities
Provide technical support for 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
Provide on-call and after-hours support for incidents and system changes

Requirements

What you’ll need

5+ years of experience managing systems and applications running on Linux operating systems, and 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 deployment and maintenance of Red Hat Linux, OS, Apache, Tomcat, and Informix components
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 the software build process 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 communicating and 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 manage multiple assignments and responsibilities simultaneously
Ability to plan, facilitate, and participate in systems and platform upgrades, service, and preventative maintenance activities
Excellent written and soft skills
Demonstrated customer service focus, work ethic, and attention to detail
Candidates must be located within the continental United States

Benefits

Comp & perks

100% remote work
Self-driven learning potential
Equal opportunity workplace
Diversity-focused company culture
Tools and support to develop skills, experience, and career