DevSecOps Engineer/Linux Administrator (Senior)

ActioNet is seeking a senior DevSecOps Engineer/Linux Administrator focused on Linux and DB2 administration. The role provides operational support, administration, and maintenance for production applications, middleware, and infrastructure, with an emphasis on security compliance, high availability, and performance.

Responsibilities:

• Knowledge of DB2 administration to include data ingestion, connectivity, access provisioning, and troubleshooting
• Ability to monitor LDAP health and DR replication, including replication status, database growth, disk utilization, and service issues
• Ability to design and built the LDAP DR replication pipeline (export, rsync, import) and resolved the replication failures that preceded it, along with several ISVD/DB2 defects
• Provide administrator support across RHEL 8, JBoss, WebSphere, Nginx, NFS, and related middleware, including SSL/TLS certificate renewals and configuration hardening
• Capable of reviewing and remediating vulnerabilities across RHEL 8, Nginx, WebSphere, NFS, DB2, IBM LDAP, and JBoss
• Lead security compliance work, including ATO evidence gathering (SC-8, SC-12, AU-09, IA-02), network flow diagrams for security review, and CJIS/NCIC-related log handling concerns
• Ability to establish secure configuration baselines for an application stack (Nginx, DB2, WebSphere) using CIS Benchmarks and DISA STIGs, with periodic compliance assessment and documented deviations
• Monitor applications, infrastructure, and service alerts across applications
• Maintain Ansible automation to start, stop, validate, and health-check application services
• Identify and implement improvements to monitoring, reliability, and operational processes
• Participate in troubleshooting and outage sessions covering application, database, infrastructure, and performance issues
• Perform system changes such as software deployments and upgrades
• Document problems and resolutions in internal and organizational documentation
• Develop system automation process to reduce redundancy and user error
• Collaborate with cross functional teams for operational support, software deployment, deployment processes, and projects
• Review system and application logs, and backup/verification/restore of system and application data
• Deploy, and maintain infrastructure resources to support the delivery of products and services to clients at scale
• Install RHEL Linux operating systems
• Install, and configure server components including Apache, Tomcat, Informix DB
• Maintain operating systems, and platform components with regular patch management
• Support and assist portal end-users in configuration of user accounts and other capabilities
• Build, and maintain operating system images in line with industry best practice, and security standards
• Assist the infrastructure team in the administration of other resources as related to service delivery
• Coordinate, and communicate with internal teams as needed in support of service delivery
• Provide technical support for external client administrators in management of client-hosted infrastructure deployments
• Perform regular monitoring of compliance, and regulatory controls
• Ability to remediate findings from security vulnerability and network scanning
• Maintain procedural, and technical documentation
• Help with SSL cert installation & troubleshooting
• Be available for on-call support, or system changes outside normal office hours
• Participate on-call duties to provide afterhours support
• Understand and demonstrate an ability to manage and an interest in the requirements listed below

Requirements:

• 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 scripting or coding using Bash, or Python
• Strong networking, and internet technology knowledge (HTTP, SMTP, firewall, DNS, TCP/IP, and load balancing concepts)
• Strong, and effective communication, and collaboration skills
• Strong analytical skills and troubleshooting ability
• Strong organizational and documentation skills
• Experience communicating and collaborating with developers, testers, systems engineer, DBAs
• Ability to work independently and with various other teams across the organization
• Ability to work with teams that support application (both centralized and distributed)
• Familiarity with the Agile principles and methodology, SAFe Framework
• Strong familiarity with Agile software management tools like Atlassian applications (JIRA and Confluence)
• Must be a strong teammate, well organized and able to handle 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 are required
• Demonstrated customer service focus, work ethic and attention to detail are critical to success in this position
• Working experience with Trend Micro Deep Security, Sumo Logic, Burp Suite Scanner, HP Fortify an asset
• Working knowledge of Software Build process and a strong "security first" mindset
• RedHat Certified Systems Administrator
• Working experience with DB2
• Working experience with AWS Cloud