IT Systems & R&D Infrastructure Administrator

Job Description

Job Description

At Mantel, we build systems that power high-stakes engineering. We are looking for an IT Systems & R&D Infrastructure Administrator who wants more than standard IT maintenance. In this role, you won't just keep the lights on—you will architect cloud systems, manage containerized development environments, and build custom software tools directly alongside our embedded engineering project teams.

This role bridges modern systems administration, cybersecurity compliance, and hands-on software development. If you enjoy supporting developer workflows, automating infrastructure with Python, and working with cloud and container tech in an R&D environment, this is your workspace.

Location: Columbus, OH — Fully Onsite

U.S. Citizenship is required.

What you’ll do:

Cloud, Server & Container Infrastructure

• Cloud Architecture & Networking: Design, administer, and secure developer cloud environments in GCP and AWS. Implement IAM policies, service accounts, and virtual networking (VPCs, firewalls, Cloud Armor).

• Linux & Container Management: Patch and maintain internal Linux development servers, manage SSH access, monitor system resources, and orchestrate containerized environments using Docker, image registries, and persistent storage.

• Application Reliability: Deploy updates, maintain release pipelines, and ensure high availability for core internal applications (e.g., Twenty CRM), including automated database backups and recovery.

Corporate IT Operations & Cybersecurity

• Technical Support Lead: Serve as the primary lead for Tier 1–3 IT support, managing identity lifecycles, user permissions, licensing, and shared resources in Google Workspace.

• Endpoint Security & Provisioning: Use IBM MaaS360 (MDM) to configure new devices, deploy corporate apps, enforce password policies, and securely decommission hardware.

• Cybersecurity & Compliance: Lead efforts to maintain compliance with Cybersecurity Maturity Model Certification (CMMC) standards and defense industry security controls across corporate assets.

R&D Support & Software Engineering

• Tooling & Automation: Work directly with technical leads and embedded software engineers to build, script, and maintain internal software tools using Python and Linux/Windows shell scripting.

• High-Performance Developer Workflows: Support developer pipelines, high-performance computing tasks, custom build tooling, and SQL databases. (SQL, JavaScript).

Required Qualifications:

• Education: B.S. in Information Technology, Information Systems, Cybersecurity, Computer Science, or a related technical field. Equivalent experience paired with relevant industry certifications will also be considered.

• Experience: Hands-on professional experience in systems administration, IT operations, or software development.

• Security & Citizenship: U.S. Citizenship is required. Must be able to obtain and maintain a U.S. Government Security Clearance.

• Core Skills:

  • Experience managing Linux environments

  • Working knowledge of GCP or AWS cloud administration and networking

  • Scripting experience in Python, Bash, or PowerShell for automation

Preferred Qualifications:

• Industry certifications such as CompTIA Security+, Linux+, or AWS/GCP cloud certifications

• Experience with Docker or other container technologies

• Familiarity with CMMC, NIST 800-171, or other federal cybersecurity frameworks

• Experience with SQL databases, JavaScript, or modern web stacks

• Experience managing MDM software (IBM MaaS360 or equivalent)

Why Mantel:
At Mantel, we build high-impact software and hardware solutions that support survivability and mission readiness. In this role, you will work directly with an agile engineering team on active R&D projects - building software, managing developer infrastructure, and seeing the direct, tangible impact of your work.

Mantel also supports you with:

• Health & Wellness Support: We offer a solid healthcare package that includes Medical, Dental and Vision coverage to support you and your family’s everyday needs

• Future-Ready Financial Benefits: Contribute to your future with our 401(k) plan, including company contributions to help you build long-term financial stability

• Peace of Mind Coverage: We provide Long-term and Short-term Disability, AD&D, and Life Insurance to help protect you and your loved ones from life’s unexpected challenges

• Recharge and Refocus: Take the time you need with our generous PTO policy, designed to help you maintain a healthy work-life balance

• Work with Flexibility: We support flexible work schedules to help you do your best work in a way that works for you and your team

About Mantel

Mantel is an Equal Opportunity Employer and supports diversity in the workplace. Applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status, marital status, sexual orientation, gender identity, or any other characteristic protected by applicable laws.

Mantel is an E-Verify employer. E-Verify is an internet-based system operated by the Department of Homeland Security (DHS) in partnership with the Social Security Administration (SSA) that allows participating employers to electronically verify the employment eligibility of their newly hired employees in the United States.