• The Linux Systems Administrator designs, builds, and maintains robust Linux-based infrastructure and tools that support mission-critical applications. • Develop automation scripts and tools using Bash, Python, or similar languages. • Monitor system performance and troubleshoot hardware, OS, and application-level issues. • Implement security best practices, including patching, access controls, and vulnerability remediation. • Collaborate with software engineering teams to optimize system integration and deployment workflows. • Architect, develop and deploy cloud-based solutions on the Azure platform. • Provision virtual machines, integration runtimes, compute, and storage resources in the Azure and AWS platforms. • Maintain documentation for system configurations, procedures, and recovery plans.

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description The qualified individual will work within an IBM and Unisys mainframe OS and environment to support customer processing, applications, and configurations. - Provide support controlling, diagnosing, and resolving difficult problems due to incorrect ECL coding/programming techniques. - Provide IBM and Unisys Mainframe Operations/Application support including performing IPL in a highly-complex mainframe operating environment. - Utilize a Windows-based personal computer workstation and the MS Office suite (Outlook, Excel, and Word), Internet browsers, Mainframe Terminal Emulation Software, and ITSM ticketing software. - Support using standard tools (currently BMC Control Products Suite) for scheduling, including building, maintaining, and scheduling batch processing. - Provide real-time accurate monitoring and troubleshooting of multiple mainframe systems and applications. - Conduct troubleshooting of mainframe application support issues to minimize interruptions in customer support. - Work with government personnel, other contractors, MLOB management, and customer personnel to ensure overall efficiency and effectiveness of MLOB Operations and Application Support. - Support MLOB Ops/App Support tracking status of mainframe Change Management, including Change Requests and Authorized Service Interruptions (ASI). - Monitor and maintain the stability of systems and resources in the MLOB Ops/App Support mainframe environment using performance/workload monitoring tools. - Perform system issue/incident determination, resolution, and RCA (e.g., job abends, system performance degradation, network monitoring/recovery). - Conduct tape service support for external tape systems in the z/OS Mainframe environment. - Provide status and activity reports on team activities and participate in meetings. - Evaluate customer’s mainframe processing requirements and effectively communicate these requirements to customers and government employees. - Troubleshoot problems to minimize interruptions in the customer's critical business activities. - Notify the customer of acceptance, receipt of upgrades, and interruptions in service for upgrades/system patches. - Provide follow-up during incident management including ITSM ticket updates and system documentation. - Contact customers for required system reporting such as unannounced outages and service interruptions. - Provide updates on ongoing issues, possible workarounds, and incident resolutions to DISA Ecosystem, C2 cell, and the customer. - Receive and disseminate notifications for ASI, product upgrades, software updates, and COOP exercises. - Support customer performance requirements and policies/procedures to ensure SLA objectives are achieved. - Work shifts as required: - Day Shift (0800-1600 ET): 3 contractors (1 Tuesday-Saturday, 2 Sunday-Thursday) - Swing Shift (1600-2400 ET): 2 contractors (1 Tuesday-Saturday, 1 Sunday-Thursday) - Grave Shift (0000-0800 ET): 2 contractors (1 Tuesday-Saturday, 1 Sunday-Thursday) - Use government documented processes and procedures to download and install application releases. - Use DISA approved tools and follow policies for Change, Incident and Service Requests. - Create, delete, and modify application user accounts IAW access requests. Qualifications - Must possess one of the following required certifications: A+ CE, CCNA Security, Network +CE, SSCP. - Clearance Required: Secret, IT-I. - Must be willing to work 3rd shift. Requirements - Experience in IBM and Unisys Mainframe Operations/Application support. - Generalized expertise in OS2200, z/OS, and z/VM operating environments, JES2, JCL, and OpCon Unisys scheduling tool. - Ability to utilize a Windows-based personal computer workstation and the MS Office suite. - Experience with ITSM ticketing software and standard tools for scheduling. Benefits - Competitive salary. - Health, dental, and vision insurance. - Retirement plans. - Paid time off and holidays. Company Description Diné Development Corporation (DDC) is a Navajo Nation owned family of companies that delivers IT, professional, and environmental solutions to advance the missions of federal, state, and tribal government agencies. - Employing a mission-focused approach, we deliver value that enhances current operations and drives future change. - Commitment to advancing the Navajo Nation and its People through economic development and community empowerment. - Success built on uniting legacy-inspired technologies, industry best practices, and proven methodologies for twenty years.

• Perform daily configuration and operation of business systems, including system backup and recovery. • Install, configure, and troubleshoot hardware, software, and networks. • Manage and secure network operating systems on GovCloud servers. • Monitor system performance, conduct capacity analysis, and optimize resource utilization. • Provide automated and manual validation of Information Assurance Controls. • Support the development and documentation of risk assessments and mitigation strategies.

• Design and implement beehiiv's corporate IT infrastructure from its current state to an enterprise-ready foundation — including network architecture, tooling selection, and systems integration • Establish and document IT standards, policies, and procedures where none currently exist, creating a repeatable and auditable framework as the company scales • Evaluate, procure, and deploy new tools and platforms that align with our security posture and operational needs • Build automated provisioning and de-provisioning workflows that reduce manual overhead and human error as headcount grows • Own the IT roadmap: identify gaps, propose solutions, and drive implementation with minimal hand-holding • Own the full lifecycle of employee identity — seamless onboarding/offboarding, group permissions management, and strict enforcement of MFA/SSO protocols in Okta • Design and maintain role-based access control (RBAC) structures that scale with the organization without creating security debt • Manage a global fleet of company MacBooks (and some Windows/Linux machines) using Kandji, ensuring all devices are encrypted, patched, and compliant with our security policies • Act as the primary admin for Google Workspace, managing everything from email routing and shared drives to security auditing and tenant-level configuration • Handle escalated IT helpdesk tasks — tech support, hardware troubleshooting, application access — with an eye for detecting social engineering or phishing attempts • Assist in hunting down corporate phishing attempts, performing malware removal, and implementing security protocols to keep our remote perimeter safe • Partner with HR (BambooHR) and Engineering to automate provisioning workflows and integrate IT systems into the broader operational stack