Sr. Software Developer – System Software

Sr. Software Developer – System Software (Windows, Red Hat Enterprise Linux (RHEL), VMWare, and Kubernetes Environment

Short Term Contract – 3 months

Pay - $44-46/hr

Public Trust Clearance

This senior-level role focuses on the stability, integrity, and performance of software that underpins logistics, maintenance, and supply chain systems. The developer will serve as a technical lead for ongoing remediation, modernization of legacy systems, and rapid issue resolution in a 24x7 operational environment. Emphasis is placed on supporting mission continuity, managing real-time system performance, and ensuring compliance with evolving cybersecurity standards.

Primary Responsibilities:

·        Lead support and sustainment activities for system-level software across Windows, Red Hat Enterprise Linux (RHEL), VMware, and Kubernetes environments.

·        Monitor application and infrastructure performance, identify degradation trends, and proactively develop mitigation strategies.

·        Resolve production software defects, perform root cause analysis, and implement fixes within agreed service levels.

·        Perform remediation of security vulnerabilities in response to Tenable or equivalent scan reports, ensuring compliance with STIG, DHS 4300A, and NIST 800-53 frameworks.

·        Support the continuous operation and resilience of legacy and hybrid systems, including SAS, OpenROAD, and SQL/PLSQL environments.

·        Develop and maintain scripts, automation routines, and tools to improve monitoring, alerting, and deployment efficiency.

·        Participate in change control, configuration management, and patching of system-level software and services.

·        Document technical resolutions, software configurations, deployment procedures, and version updates to support audit readiness and knowledge transfer.

·        Work collaboratively with developers, help desk, network engineers, and cybersecurity personnel to maintain service availability and compliance.

·        Support test, staging, and production environments across virtualized platforms using VMware, Hyper-V, and containerized orchestration via Kubernetes.

·        Participate in Agile/DevSecOps operations, using tools such as Jira, Confluence, and Bitbucket for tracking, knowledge sharing, and issue management.

·        All other duties as assigned by management.

Skills/Qualifications:

·        Advanced expertise in system-level software development and support for RHEL, Windows, VMware, and virtualized infrastructures.

·        Strong troubleshooting experience in production environments with a focus on availability, security, and rapid recovery.

·        Knowledge of legacy and enterprise systems, including OpenROAD, Ingres, and SAS.

·        Scripting experience in Bash, PowerShell, or Python to automate operational tasks and system updates.

·        Familiarity with CI/CD pipelines, Kubernetes, and version control platforms in operational environments.

·        Strong documentation, communication, and collaboration skills for multi-disciplinary coordination.

Education/Experience Requirements:

Bachelor’s or Associate's degree in Computer Science, Math, Information Technology, Engineering, or related field. Five (5) years of directly relevant experience may substitute for two (2) years of formal education.

Minimum of five (5) years of experience in one or more of current RHEL, Windows, and VMWare, and SAS.

Minimum of five (5) years of performing security remediation to systems with vulnerabilities based on security scans.

Minimum of two (2) years of experience in an Agile DevSecOps software and engineering environment and Methodologies.

Minimum of two (2) years of experience with Kubernetes, Jira, Confluence, and Bitbucket.

Experience supporting federal government systems, particularly within DHS or DoD environments, is strongly preferred.

Clearance:

U.S. citizenship required

Must have or be eligible to obtain a Position of Public Trust or DoD Secret Clearance.

Certification Requirement

CompTIA Security+

Additional certifications (Microsoft Certified: Windows Server Hybrid Administrator, Red Hat Certified System Administrator (RHCSA), ITIL Foundation, or Network+) are a plus.