ManTech delivers technology-driven innovation, develops game-changing solutions, and delivers mission-focused technologies for defense and federal civilian agencies.

Defense & Space
1968

Actively Hiring

AI Summary

This Site Reliability Engineer role at MANTECH supports the Department of Defense with system accreditation and infrastructure management. Responsibilities include building and maintaining IT resources using tools like OCP, AWS, and VSphere, as well as creating Body of Evidence documentation. The role requires a Secret clearance and experience with agile methodologies. Preferred qualifications include CISSP certification and Top Secret clearance with SCI eligibility. The position is fully remote and focuses on ensuring secure, scalable, and reliable systems for the Command Data Office.

Job Complexity

Easy Hard

AI Insight The role requires deep technical expertise across multiple platforms (OCP, AWS, VSphere) and experience with security accreditation processes, which are complex and high-stakes. The combination of technical skills, security clearance, and agile methodology knowledge makes this a challenging position.

Salary Analysis

AI Insight The offered salary range of $137,100-$244,100 is competitive and above the market median for SRE roles, which typically range from $120,000 to $200,000. The midpoint of $190,600 aligns well with senior-level positions requiring security clearance and specialized tools.

Key Skills

Site Reliability Engineering AWS OpenShift (OCP) VSphere Agile Security Compliance CISSP Infrastructure Engineering Body of Evidence Kubernetes

Cover Letter Sample

I am writing to express my interest in the Site Reliability Engineer position at MANTECH. With over 7 years of experience in information systems security and infrastructure engineering, I have developed expertise in OCP, AWS, and VSphere, as well as agile methodologies. My background includes creating Body of Evidence documentation and managing system accreditation processes, directly aligning with this role's requirements.

I am particularly drawn to MANTECH's mission of supporting national defense through advanced technology. My experience working in complex mission environments and driving security agendas across large teams will enable me to contribute effectively to the Command Data Office's goals.

I hold an active Secret clearance and am eager to bring my skills in lean startup principles and security compliance to your team. Thank you for considering my application.

Possible Interview Questions

Can you describe your experience with OCP (OpenShift Container Platform) and how you have used it to build scalable infrastructure?

I have used OCP to deploy and manage containerized applications, leveraging its orchestration capabilities for scaling and high availability. For example, I set up a cluster that auto-scaled based on load, ensuring resource efficiency.

How do you approach creating Body of Evidence (BOE) documentation for system accreditation?

I start by understanding the security controls required, then document the system's architecture, configurations, and compliance evidence. I use tools like Fortify for vulnerability scans and ensure all documentation is updated and accurate for auditors.

Describe a time you had to implement security controls in a complex, multi-system environment. What challenges did you face?

In a previous role, I integrated security controls across legacy and cloud systems. The main challenge was ensuring consistency; I solved it by creating standardized templates and automating compliance checks using tools like Satellite.

How do you stay updated with the latest security threats and compliance requirements?

I regularly attend webinars, follow security forums, and pursue certifications like CISSP. I also participate in internal knowledge-sharing sessions to keep the team informed.

Explain how you would use lean startup principles in an SRE context to improve system reliability.

Lean startup principles involve building minimum viable products, measuring outcomes, and learning from feedback. For reliability, I would implement small changes, monitor their impact on uptime, and iterate quickly to improve without major disruptions.

General information

Requisition # R67618 Locations USA-Remote Work Posting Date 05/14/2026 Security Clearance Required Secret Remote Type Fully Remote Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!
***This is for a future opportunity***

MANTECH seeks a motivated, career and customer-oriented Site Reliability Engineer to join our team.

The Site Reliability Engineer (SRE) will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions. You will be responsible for building and maintaining IT infrastructure resources that serve the Command Data Office’s (CDO) data analysis and data management requirements. This role brings critical expertise to the CDO team in creating scalable, highly reliable, and secure infrastructure and software resources.

Responsibilities include but are not limited to:

You will apply your expertise in OCP, TwistLock, Fortify, AWS Console, Quay, Satellite, and VSphere to build and maintain infrastructure.
This role involves leveraging lean startup principles and agile software development to create scalable and highly reliable resources.
You will create, update, maintain, and interpret required Body of Evidence (BOE) documentation for CDO infrastructure.
You will work with management and internal teams to successfully navigate the Sponsor’s accreditation process for all systems.
This position requires you to document responses to required controls and maintain a robust library of network diagrams for cyber defense.
You will work with all stakeholders to ensure complete and functioning systems that meet all data management requirements.
You will recommend and implement process and policy improvements to enhance the security and reliability of the platform.

Minimum Qualifications:

High School Diploma/GED with 7+ years of progressively responsible experience in Information Systems Security or Infrastructure Engineering.
Expert knowledge of technical toolsets including OCP, TwistLock, Fortify, AWS Console, Quay, Satellite, and VSphere.
Significant experience with lean startup principles and agile software development methodologies.
Proven experience meeting security requirements in the Sponsor’s environment or similar complex mission environments.
Experience working across a large team to drive a security agenda for complex, intertwined systems.
Experience inventorying complex networks and managing security compliance and configuration documentation.

Preferred Qualifications:

Certified Information Systems Security Professional (CISSP certification).
Experience with the Sponsor’s primary cyber risk and compliance automation tools.
Active Top Secret clearance with SCI eligibility is preferred.

Clearance Requirements:

Active Secret clearance is required.

Physical Requirements:

You must be able to remain in a stationary position 50% of the time.
You will need to occasionally move about inside the office to access file cabinets and office machinery.
This role requires you to frequently communicate with co-workers, management, and customers.
You must be able to exchange accurate information in all professional situations.

The projected compensation range for this position is $137,100.00-$244,100.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [email protected] and provide your name and contact information.

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