Sr. Linux Systems Engineer

Apex Systems; Bridgeton (MO); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

401K with company match

ESPP (employee stock purchase)

HSA (Health Savings Account)

EAP with counseling

Professional development & training

Job summary

Everforth Apex Systems seeks a Sr Linux Systems Engineer to lead the migration from Windows to Linux for a connected/edge device platform. The role focuses on OS hardening, securing components, and building automated fleet management for Linux-based devices.

You will collaborate with development, infra, and operations to ensure functional parity and minimal downtime, while documenting repeatable processes for scale.

Qualifications

• 10+ years of system design experience or equivalent.
• Proven Windows-to-Linux migration in production with minimal downtime.
• Deep expertise in Linux distributions (Ubuntu/Debian), including hardening, packaging, and configuration management.
• Experience with automated system management, patching, access management, and monitoring.
• BS in Computer Science, Computer Engineering, or equivalent.

Responsibilities

• Assist design, planning, and execution of Windows-to-Linux migration (host OS, apps).
• Analyze Windows app dependencies to guide Linux migration strategy and target architecture.
• Collaborate with development, infra, and operations to ensure parity and requirements.
• Identify and resolve compatibility issues, drivers, and blockers during migration.
• Ensure hardened OS configuration for secure distribution.
• Document end-to-end fleet management processes (imaging, patches, upgrades).

Skills

Linux

Bash

Python

Windows-to-Linux migration

CI/CD orchestration

Cloud: AWS/Azure

Docker/Kubernetes

Scripting

Education

BS in Computer Science/Engineering

Tools

GitLab/GitHub

Terraform

Ansible

Job description

Position Summary:

We are seeking a Sr. Linux Systems Engineer to support the migration of a Windows-based system to a Linux desktop environment supporting a connected/edge device platform. This engineer will help define and execute the migration path, harden the operating system by securing and locking down system components, and build an automated solution for managing a fleet of edge devices. This is a hands- on engineering role for someone who enjoys solving platform-level problems and documenting repeatable processes.

Sr. Linux Systems Engineer

Key Responsibilities:

• Assist with the design, planning, and execution of a migration from a Windows-based to a Linux-based solution, including host OS conversion and application porting.
• Analyze existing Windows application dependencies, services, and configurations to advise on a comprehensive Linux migration strategy and target architecture.
• Partner with development, infrastructure, and operations stakeholders to ensure functional parity and system requirements are met throughout the migration.
• Identify and resolve compatibility issues, driver conflicts, and platform-specific blockers encountered during the Windows-to-Linux migration process.
• Ensure the new OS configuration is hardened and set up in a secure fashion for distribution.
• Design, develop, and document an end-to-end process for fleet management of Linux-based systems (device imaging, security patches, OS upgrades, and package upgrades).

Required Qualifications:

• 10+ years of system design experience or equivalent.
• Proven track record of planning and executing full Windows-to-Linux OS and application migrations in production environments with minimal downtime.
• Deep expertise in Linux distributions such as Ubuntu or Debian-based systems, including system hardening, package management, and configuration management.
• Experience with automated system management, including security patching, access management, and monitoring.
• Able to design high-availability solutions with minimal guidance and a high attention to detail.
• Proficiency in Linux scripting such as Bash or Python.
• BS in Computer Science, Computer Engineering, or equivalent experience.

Preferred Qualifications:

• Experience deploying and managing Linux-based workloads using cloud platforms such as AWS or Azure.
• Familiarity with Docker, Podman, or Kubernetes for containerizing migrated workloads.
• Experience working with cloud-based IoT solutions (e.g., Azure IoT).
• Ability to design and work with scalable distributed software solutions.
• POSIX shell scripting experience, such as Dash or KSH.
• Excellent written communication and technical documentation skills.

Tools & Technologies (not required, but helpful):

• GitLab, GitHub, Bitbucket, or equivalent Git-based version control and CI/CD platforms.
• Copilot, Claude Code, or other AI-assisted tooling.
• Draw.io, Stately.ai, Mural, Lucidchart, Craft.io, or Mermaid charts for design.

Everforth Apex Benefits Overview:

• Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.
• We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
• Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.
• In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.
• Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach.
• You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.