Software Integration Engineer (Mid/Senior) – TS/SCI Full Scope Poly – Maryland or Utah

Software Integration Engineer (Mid/Senior) – TS/SCI Full Scope Poly

📍 Locations: Maryland or Utah
🏢 Work Arrangement: 100% Onsite
💼 Employment Type: Full-Time
🔒 Security Clearance Required: Active TS/SCI with Full Scope Polygraph (NSA Preferred)
🇺🇸 Citizenship: U.S. Citizen Required
🚫 Visa Sponsorship: Not Available
🚚 Relocation Assistance: Available
💰 Compensation: $100,000 – $200,000 Base Salary

Overview

A leading government technology contractor is seeking Software Integration Engineers (Mid-Level and Senior-Level) to join a mission-critical Site Reliability Engineering (SRE) team supporting highly secure government environments.

These positions focus on enterprise-scale monitoring, automation, software integration, operational tooling, and infrastructure reliability. Candidates will work across Linux-based environments while supporting mission operations through automation, observability, resiliency engineering, and performance optimization.

This role is ideal for engineers who enjoy solving complex operational challenges, automating infrastructure, and improving system reliability within highly secure environments.

Key Responsibilities

Site Reliability Engineering (SRE)

• Support mission-critical infrastructure and operational tooling.

• Improve system reliability, resiliency, and operational efficiency.

• Develop automation and monitoring solutions.

• Support enterprise-scale observability initiatives.

Software Integration & Deployment

• Support software integration activities across mission environments.

• Configure and troubleshoot customer-facing applications and use cases.

• Participate in infrastructure deployments and system upgrades.

• Manage software deployment workflows and integrations.

Linux Administration

• Administer and support Linux-based environments.

• Perform system maintenance, troubleshooting, and optimization.

• Support multiple Linux distributions across operational environments.

Note: Candidates should expect to spend approximately 50% of their time initially performing Linux administration while becoming familiar with supported systems and environments.

Automation & Configuration Management

• Develop and maintain automation using:

• Salt

• Ansible

• Improve operational efficiency through infrastructure automation.

• Support configuration management initiatives.

Monitoring & Observability

Build and maintain monitoring solutions utilizing:

• Nagios

• Thruk

• Prometheus

• Splunk

• Grafana

Collaboration

• Partner with engineering and operations teams.

• Troubleshoot mission-critical issues.

• Improve reliability, performance, and scalability.

• Support continuous improvement initiatives.

Required Qualifications

Security Requirements

✔ Active TS/SCI Clearance

✔ Active Full Scope Polygraph (NSA Preferred)

✔ U.S. Citizenship Required

Linux Administration Experience

Strong experience supporting one or more of:

• Red Hat Enterprise Linux (RHEL)

• CentOS

• Rocky Linux

• SUSE Linux Enterprise Server (SLES)

• Ubuntu

Experience with:

• Linux system administration

• System troubleshooting

• Operational support

• Infrastructure maintenance

Programming & Scripting

Experience with one or more of:

• Python

• Bash

• C

Highly Desired Technical Skills

Monitoring & Observability

• Nagios

• Thruk

• Prometheus

• Splunk

• Grafana

Automation & Configuration Management

• Salt

• Ansible

Development & Collaboration Tools

• GitBucket

• Jira

• Confluence

Workload & Resource Management

• Slurm

Must-Have Requirements

Clearance

✅ Active TS/SCI Clearance

✅ Active Full Scope Polygraph

Linux Expertise

✅ Linux System Administration

✅ Linux Troubleshooting

Scripting & Automation

✅ Python, Bash, or C

Technical Skills

✅ Monitoring & Operational Support

✅ Infrastructure Troubleshooting

Soft Skills

✅ Strong Problem-Solving Skills

✅ Ability to Work in Fast-Paced Mission Environments

✅ Strong Team Collaboration Skills

Screening Questions

1. Do you currently hold an active TS/SCI clearance with a Full Scope Polygraph?

2. Was your Full Scope Polygraph issued by NSA?

3. When was your most recent Full Scope Polygraph completed?

4. How many years of Linux administration experience do you have?

5. Which Linux distributions have you supported (RHEL, CentOS, Rocky, Ubuntu, SLES)?

6. Which scripting or programming languages have you used professionally (Python, Bash, C)?

7. Do you have experience with monitoring platforms such as Nagios, Prometheus, Grafana, or Splunk?

8. Have you worked with automation tools such as Salt or Ansible?

9. Do you have experience supporting Site Reliability Engineering (SRE), DevOps, or operational infrastructure environments?

10. Are you willing to work onsite full-time in Maryland or Utah?

Ideal Candidate Profile

The ideal candidate will:

• Hold an active TS/SCI Full Scope Polygraph.

• Possess strong Linux administration skills.

• Have experience supporting enterprise monitoring and automation platforms.

• Enjoy troubleshooting highly complex operational environments.

• Be comfortable working within Site Reliability Engineering (SRE) frameworks.

• Have experience developing automation solutions and improving operational efficiency.

• Demonstrate curiosity, initiative, and a continuous learning mindset.

• Thrive in highly collaborative mission-focused environments.

Candidate Snapshot

Requirement

Details

Clearance

Active TS/SCI + Full Scope Poly

Citizenship

U.S. Citizen

Experience Level

Mid-Level to Senior

Linux Expertise

RHEL, CentOS, Rocky, Ubuntu, SLES

Scripting

Python, Bash, or C

Automation

Salt, Ansible

Monitoring

Nagios, Prometheus, Splunk, Grafana

Environment

Site Reliability Engineering (SRE)

Location

Maryland or Utah

Work Arrangement

100% Onsite

Travel

None

Compensation

$100K – $200K

Relocation

Available

Why This Opportunity?

Mission Impact

Support highly secure government environments responsible for critical national missions.

Modern Engineering Environment

Work with leading technologies across:

• Site Reliability Engineering

• Automation

• Observability

• Linux Infrastructure

• Enterprise Monitoring

Technical Growth

Gain exposure to advanced operational tooling, large-scale monitoring environments, and infrastructure automation initiatives.

Strong Benefits Package

• 3 Weeks PTO

• 11 Federal Holidays

• Medical & Dental Coverage

• Life Insurance

• STD & LTD Coverage

• 401(k) with Company Match

• Long-Term Career Growth Opportunities

This opportunity is ideal for a Software Integration Engineer, Site Reliability Engineer (SRE), Linux Systems Engineer, DevOps Engineer, Platform Engineer, Infrastructure Engineer, or Automation Engineer with an active TS/SCI Full Scope Polygraph looking to support mission-critical government operations.

Information System Security Engineer (ISSE) – TS/SCI Full Scope Poly – Annapolis Junction, MD

Information System Security Engineer (ISSE) – TS/SCI Full Scope Poly

📍 Location: Annapolis Junction, MD
🏢 Work Arrangement: 100% Onsite
💼 Employment Type: Full-Time
🔒 Security Clearance Required: Active TS/SCI with Full Scope Polygraph (NSA Preferred)
🇺🇸 Citizenship: U.S. Citizen Required
🎓 Certification Required: DoD 8570/8140 IASAE Level II Compliant Certification
🚫 Visa Sponsorship: Not Available
🚚 Relocation Assistance: Available
💰 Compensation: $100,000 – $200,000 Base Salary

Overview

A leading government technology contractor is seeking Information System Security Engineers (ISSEs) to support mission-critical classified government programs.

This role focuses on integrating cybersecurity engineering principles throughout the entire system lifecycle, including system design, implementation, accreditation, continuous monitoring, and sustainment. The ISSE will play a critical role in Risk Management Framework (RMF) execution, Assessment & Authorization (A&A) activities, security control validation, and ongoing cybersecurity compliance.

The ideal candidate will possess a strong blend of cybersecurity engineering, RMF expertise, technical security assessment experience, and security architecture knowledge within highly secure classified environments.

Key Responsibilities

Risk Management Framework (RMF)

• Support the full RMF lifecycle for classified information systems.

• Develop and maintain RMF documentation and security artifacts.

• Assist with Authority to Operate (ATO) activities and sustainment.

• Support Assessment & Authorization (A&A) efforts.

• Maintain body-of-evidence packages for accreditation activities.

Security Engineering

• Implement and validate security controls.

• Perform Security Control Traceability and technical validation.

• Support system boundary definition and security architecture development.

• Conduct technical security assessments and risk analysis.

• Recommend security improvements and mitigation strategies.

Compliance & Continuous Monitoring

• Participate in Continuous Monitoring (ConMon) activities.

• Conduct compliance assessments and security reviews.

• Analyze vulnerability scan results and remediation efforts.

• Verify remediation effectiveness and identify false positives.

• Ensure ongoing compliance with cybersecurity requirements.

Vulnerability Management & Hardening

• Support vulnerability management programs.

• Implement and validate STIG compliance.

• Support patch validation and security compliance efforts.

• Assist with system hardening initiatives.

• Coordinate remediation activities with technical teams.

Stakeholder Collaboration

• Work closely with:

• ISSOs

• ISSMs

• Security Control Assessors (SCAs)

• System Owners

• System Administrators

• Support accreditation, compliance, and cybersecurity engineering efforts across mission systems.

Required Qualifications

Security Requirements

✔ Active TS/SCI Clearance

✔ Active Full Scope Polygraph (NSA Preferred)

✔ U.S. Citizenship Required

Certification Requirement

✔ DoD 8570/8140 IASAE Level II Compliant Certification

Examples include:

• CISSP

• CASP+

• CCSP

• CSSLP

Cybersecurity & RMF Experience

Strong experience with:

• Risk Management Framework (RMF)

• Assessment & Authorization (A&A)

• Authority to Operate (ATO)

• Security Control Implementation

• Security Control Validation

• Continuous Monitoring (ConMon)

NIST Knowledge

Strong familiarity with:

• NIST SP 800-37

• NIST SP 800-53 Rev. 3 and/or Rev. 5

• Security Control Frameworks

• RMF Compliance Processes

RMF & Compliance Tools

Experience with one or more of:

• LATTEART

• XACTA

• BISCOTTI

• WATCHCAT

• STE

Additional experience with:

• Compliance scanning tools

• Configuration assessment tools

• Vulnerability management platforms

Core ISSE Skill Areas

Security Engineering

• Security Control Implementation

• Security Control Validation

• Security Architecture Support

• System Boundary Definition

Compliance & Accreditation

• Assessment & Authorization (A&A)

• RMF Artifact Development

• Accreditation Package Support

• Body of Evidence Management

Vulnerability Management

• Vulnerability Analysis

• Remediation Tracking

• Patch Validation

• STIG Compliance

• Security Hardening

Risk Management

• Technical Risk Analysis

• Compliance Validation

• Continuous Monitoring (ConMon)

• Security Assessment Support

Preferred Qualifications

Government & Classified Environment Experience

• Classified Government cybersecurity programs.

• Large-scale enterprise systems.

• Mission-critical environments.

Technical Infrastructure Exposure

Experience supporting:

• Enterprise Linux environments

• Network infrastructure

• Cloud environments

Stakeholder Coordination

Experience collaborating with:

• ISSOs

• ISSMs

• Security Control Assessors

• System Owners

• Engineering Teams

Must-Have Requirements

Clearance

✅ Active TS/SCI Clearance

✅ Active Full Scope Polygraph

Certification

✅ IASAE Level II Certification

Cybersecurity

✅ RMF Experience

✅ A&A Experience

✅ ATO Experience

✅ Security Control Validation

Compliance

✅ Continuous Monitoring

✅ Vulnerability Management

✅ STIG Implementation

Documentation

✅ RMF Artifacts

✅ Accreditation Packages

✅ Security Documentation

Screening Questions

1. Do you currently hold an active TS/SCI clearance with a Full Scope Polygraph?

2. Was your Full Scope Polygraph issued by NSA?

3. When was your most recent Full Scope Polygraph completed?

4. Which IASAE Level II certification do you currently hold (CISSP, CASP+, CCSP, CSSLP, etc.)?

5. How many years of ISSE or cybersecurity engineering experience do you have?

6. Have you supported the full RMF lifecycle, including A&A and ATO activities?

7. Which RMF tools have you used (XACTA, LATTEART, BISCOTTI, WATCHCAT, STE)?

8. Do you have experience implementing and validating security controls?

9. Have you supported STIG implementation, vulnerability remediation, and compliance validation?

10. Do you have experience supporting classified government systems?

Ideal Candidate Profile

The ideal candidate will:

• Hold an active TS/SCI Full Scope Polygraph.

• Possess an active IASAE Level II certification.

• Have strong cybersecurity engineering experience within classified environments.

• Be highly knowledgeable in RMF, A&A, and ATO processes.

• Understand security architecture, control implementation, and compliance validation.

• Have experience supporting vulnerability management and STIG compliance.

• Demonstrate excellent analytical, troubleshooting, and documentation skills.

• Balance mission objectives with cybersecurity requirements and risk management practices.

Candidate Snapshot

Requirement

Details

Clearance

Active TS/SCI + Full Scope Poly

Citizenship

U.S. Citizen

Experience Level

Mid-Level to Senior

Certification

IASAE Level II Required

Frameworks

RMF, NIST 800-37, NIST 800-53

Compliance

A&A, ATO, ConMon

Security

Control Implementation & Validation

Documentation

RMF Artifacts & Accreditation Packages

Tools

XACTA, LATTEART, BISCOTTI, WATCHCAT, STE

Location

Annapolis Junction, MD

Work Arrangement

100% Onsite

Travel

None

Compensation

$100K – $200K

Relocation

Available

Why This Opportunity?

Mission Impact

Support highly classified systems that directly contribute to critical national security missions.

Cybersecurity Engineering Focus

Move beyond compliance into hands-on security engineering, architecture support, security control validation, and accreditation activities.

Technical Growth

Gain exposure to advanced RMF processes, security engineering practices, vulnerability management, and enterprise cybersecurity operations.

Strong Benefits Package

• 3 Weeks PTO

• 11 Federal Holidays

• Medical & Dental Coverage

• Life Insurance

• STD & LTD Coverage

• 401(k) with Company Match

• Long-Term Career Development

This opportunity is ideal for an Information System Security Engineer (ISSE), Cybersecurity Engineer, RMF Engineer, Security Compliance Engineer, Cybersecurity Architect, A&A Specialist, or Security Controls Engineer with an active TS/SCI Full Scope Polygraph and IASAE Level II certification seeking to support highly sensitive government programs.