Sr. Software Developer, System Software

Oasys International, LLC; United States; Remote; USD 90,000 - 120,000; Full time

Job summary

A rapidly expanding technology consulting firm is seeking a Sr. Software Developer to support the US Coast Guard. The role involves sustaining system software and ensuring operational performance in a secure environment. Candidates must have expertise in RHEL, Windows, VMware, and scripting, along with experience in an Agile DevSecOps setting. The position offers remote work and requires US citizenship and specific security clearances.

Qualifications

• Five years of experience in RHEL, Windows, and VMware.
• Two years of experience in Agile DevSecOps environment.
• Experience with security remediation based on security scans.

Responsibilities

• Lead support and sustainment activities for system-level software.
• Resolve production software defects and implement fixes.
• Develop scripts for operational automation.

Skills

Advanced system-level software development expertise

Strong troubleshooting experience

Scripting in Bash, PowerShell, or Python

Familiarity with CI/CD pipelines

Strong communication and collaboration skills

Education

Bachelor's or Associate's degree in related field

Tools

Jira

Confluence

Bitbucket

Kubernetes

VMware

Job description

Overview

Who We Are: Oasys International, LLC (Oasys) is a rapidly expanding firm that has been recognized on Inc. 5000 magazine's list of the fastest-growing companies for five consecutive years. We are a dynamic organization dedicated to providing world-class technology consulting services through our team of expert technologists, consultants, engineers, and subject matter experts. At Oasys, we prioritize continuous learning, a healthy work-life balance, and a collaborative work environment. Our culture is merit-based, recognizing and rewarding performance and fostering a supportive and social atmosphere.

Position Summary

Oasys is seeking a Sr. Software Developer, System Software to support the United States Coast Guard (USCG) at the Aviation Logistics Center (ALC)-Information Systems Division (ISD). The Sr. Software Developer, System Software will provide advanced support for the operation, sustainment, performance, and security of system software across USCG\'s aviation logistics enterprise.

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.

Work Location

• Remote
• North Carolina Region

Oasys is proud to be an equal opportunity employer for all protected groups, including protected veterans and individuals with disabilities.