Sr. Platforms Engineer

Core4ce Careers; United States; Remote; USD 80,000 - 100,000; Full time

Job summary

A company focused on national security innovation is seeking a Senior Platforms Engineer to provide advanced expertise in VMware platforms, oversee ESXi hosts, and ensure optimal performance. Ideal candidates will have over 15 years of experience and a strong grasp of virtualization and complex troubleshooting, alongside IAT Level II certification and relevant educational background.

Benefits

401(k) with company match

Comprehensive medical, dental, and vision coverage

Unlimited access to training and certifications

Tuition assistance

Paid parental leave and generous PTO

Qualifications

• 15+ years of professional experience in platforms engineering or systems administration.
• Ability to independently troubleshoot complex platform issues and implement lasting solutions.
• Hands-on expertise with VMware products.

Responsibilities

• Monitor and troubleshoot performance issues on ESXi hosts.
• Upgrade hardware and firmware on physical hosts as applicable.
• Operate VMware vCenter and perform advanced VM lifecycle management functions.

Skills

VMware vCenter

ESXi

vRealize Operations Manager

Datacenter operations

Complex troubleshooting

IAT Level II certification

Education

Bachelor’s degree in Computer Science or related field

Job description

Overview

Core4ce is seeking a Senior Platforms Engineer to provide advanced expertise in monitoring, maintaining, and scaling VMware-based platforms to ensure high availability and optimal performance of enterprise environments. This role will support the Defense Health Agency (DHA) mission by managing ESXi hosts, administering vCenter, and recommending efficient use of compute capacity worldwide.

Responsibilities

• Monitor and troubleshoot performance issues on ESXi hosts across distributed environments.
• Upgrade hardware and firmware on physical hosts as applicable.
• Operate VMware vCenter and perform advanced VM lifecycle management functions.
• Manage permissions and functionality within vCenter for customer administrators.
• Track compute capacity across all hosts/sites and provide recommendations for capacity planning.
• Migrate VMs across hosts to optimize workload performance and availability.
• Support the procurement, installation, and configuration of new physical datacenter hardware.
• Collaborate with Government and contractor lead to ensure alignment with mission requirements.

Required Qualifications

• Active DoD Secret clearance (or ability to obtain and maintain).
• 15+ years of professional experience in platforms engineering or systems administration.
• Hands-on expertise with VMware vCenter, ESXi (6.7/7), VMware vRealize Operations Manager (vROps), VMware vRealize Automation, and VMware Update Manager.
• Strong background in virtualization, physical node management (blades/chassis), and datacenter operations.
• Experience with compute capacity planning and hardware lifecycle management.
• Ability to independently troubleshoot complex platform issues and implement lasting solutions.
• Strong communication skills and ability to collaborate in a fast-paced, globally distributed team.
• IAT Level II certification.

Preferred Qualifications

• Bachelor’s degree in Computer Science, Information Systems, or related field (or equivalent experience).
• At least one relevant industry certification such as VMware Certified Professional (VCP) or similar certification.
• Experience supporting large-scale, geographically dispersed datacenter environments.
• Familiarity with Department of Defense (DoD) environments, security compliance, such as Risk Management Framework (RMF) and Security Technical Implementation Guides (STIGs), and DHA mission systems.
• Prior experience recommending and implementing platform optimization strategies at scale.

Why Work for Us?

Core4ce is a team of innovators, self-starters, and critical thinkers—driven by a shared mission to strengthen national security and advance warfighting outcomes.

We offer:

• 401(k) with 100% company match on the first 6% deferred, withimmediatevesting
• Comprehensive medical, dental, and vision coverage—employee portion paid 100% by Core4ce
• Unlimitedaccess totrainingand certifications, with no pre-set cap on eligible professional development
• Tuition assistancefor job-related degrees and courses
• Paidparental leave, PTO that grows with tenure, and generous holiday schedules
• Got a big idea? At Core4ce, the Forge gives every employee the chance to propose bold innovations and help bring them to life with internal backing.

Join us to build a career that matters—supported by a company that invests in you.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, disability, veteran status, age, genetic information, or other legally protected status.