Tomcat

Senior DevOps / Linux Systems Engineer – Top Secret Clearance (Onsite, St. Louis MO)

DevOps / Linux Systems Engineer (Senior) – Top Secret Clearance Required

📍 Location: St. Louis, Missouri (Onsite Only)
🏢 Work Model: 100% Onsite
💼 Employment Type: Full-Time
💰 Salary Range: $100,000 – $180,000
🔐 Clearance: Top Secret (CI Poly required upon hire)
🎓 Education: Bachelor’s Degree Required
🚚 Relocation Assistance: Available

About the Role

This is a mission-critical DevOps / Linux Systems Engineering role supporting highly secure, operational cloud and on-premise geospatial systems. You’ll take a technical leadership position within a mission operations team responsible for sustaining and evolving classified environments used by government stakeholders.

This role is ideal for an experienced Linux-focused DevOps Engineer who thrives in secure, high-stakes environments and enjoys owning system reliability, automation, security hardening, and operational excellence.

What You’ll Be Doing

  • Lead system changes, upgrades, and continuous improvements across secure on-prem and AWS environments

  • Serve as a technical escalation point, working directly with government and contractor stakeholders

  • Proactively monitor system health and perform advanced diagnostics and remediation

  • Deploy security patches, STIGs, and bug fixes across test and production environments

  • Build, manage, and automate AWS-based Linux systems

  • Maintain and update critical databases and operational datasets

  • Author and maintain operational documentation, SOPs, and troubleshooting guides

  • Respond to security findings and compliance reports with speed and precision

Required Qualifications

  • Active Top Secret Clearance with willingness to sit for a CI Polygraph

  • CompTIA Security+ (or equivalent DoD 8570 certification)

  • Bachelor’s degree with 8–12 years relevant experience
    (or Master’s with 6–10 years)

  • Advanced Linux administration experience (RHEL 7+)

  • Strong AWS / cloud automation experience (must-have)

  • Hands-on experience building, patching, and STIG’ing Linux servers

  • Experience with Windows Server administration

  • Strong troubleshooting, analytical, and documentation skills

  • Excellent written and verbal communication skills

Highly Desired Skills

  • Ansible playbooks and infrastructure automation

  • AWS automation tooling and scripting

  • Experience with:

    • ArcGIS / ESRI deployments

    • RDS and SQL technologies

    • Apache NiFi

    • Python (including ML-related workflows)

    • Tomcat

  • Familiarity with IC cloud architecture methodologies

  • Team collaboration tools (Jira, Confluence, RocketChat)

  • AWS Certifications (Solutions Architect, Developer, etc.)

Ideal Candidate

  • Senior-level Linux Systems Engineer with strong DevOps instincts

  • Proven experience automating AWS infrastructure in secure environments

  • Comfortable owning system lifecycle: build → secure → operate → sustain

  • Detail-oriented, proactive, and confident operating in classified settings

  • Security+ certified and CI Poly-ready

Benefits & Perks

  • 3 weeks paid time off

  • 11 Federal holidays

  • Medical, dental, vision coverage

  • Short & long-term disability

  • Life insurance & AD&D

  • 401(k) with up to 4% match (immediate vesting)

  • End-of-year profit sharing

  • Relocation assistance

  • Ongoing technical training & certifications

Additional Information

  • Security Clearance Required: Yes

  • Visa Sponsorship: Not available

  • Travel: None

 

Software Engineer (TS/SCI CI Poly) | San Diego, Aurora, Annapolis Junction, Alexandria | $DOE | Full-Time Onsite

💻 Software Engineer – TS/SCI CI Poly Required

📍 Locations: San Diego, CA | Aurora, CO | Annapolis Junction, MD | Alexandria, VA
🏢 Onsite: 100% (Active clearance access required)
🎯 Openings: 10 positions available
🕓 Employment: Full-Time | Permanent

🌟 The Opportunity

Join a high-impact federal technology program supporting mission-critical national security initiatives. As a Software Engineer, you’ll work within an elite agile development team using modern frameworks and DevSecOps best practices to design, build, and deliver cutting-edge enterprise systems that protect and advance U.S. interests worldwide.

This is your chance to contribute to an operationally significant program—developing software solutions that enhance data integrity, security, and performance across large-scale environments. You’ll be surrounded by forward-thinking technologists and have access to continual technical training and certifications to help you stay ahead of the curve.

🧠 Key Responsibilities

  • Design, develop, and maintain robust, scalable software solutions in support of national-level mission systems.

  • Collaborate within Agile and SAFe environments, participating in sprint planning, reviews, and retrospectives.

  • Analyze complex system requirements and produce well-structured, efficient, and reusable code.

  • Utilize Behavior Driven Development (BDD) and test automation tools to enhance software reliability and performance.

  • Implement and support DevOps pipelines, leveraging tools like Jenkins and version control systems.

  • Conduct software debugging, optimization, and tuning to ensure high availability and reliability.

  • Author and maintain clear technical documentation and automation scripts to support deployment and testing.

  • Collaborate cross-functionally with system engineers, testers, and architects to ensure end-to-end solution integrity.

🧩 Required Qualifications

  • Active TS/SCI clearance with CI Polygraph (mandatory)

  • Bachelor’s degree in Computer Science or related field (or equivalent relevant experience)

  • Strong Java development experience

  • Experience with one or more of the following:

    • Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Oracle, Postgres, Jenkins

  • Experience with User Interface (UI) development, HTML/XHTML/XML/XSLT, and database structures

  • Knowledge of both Windows and Linux environments

  • Deep understanding of software engineering principles, algorithms, and secure coding practices

  • Strong communication and problem-solving abilities; comfortable working independently and collaboratively

🚀 Preferred Qualifications

  • Experience with JEE, Tomcat, WebLogic, or JBoss

  • Familiarity with BDD / TDD frameworks (FITNesse, Mockito, Cucumber, Selenium, UFT)

  • Secure software development and Layer 7 Policy implementation experience

  • Hands-on experience with Scaled Agile Framework (SAFe) or Agile Developer practices (Pair Programming, Refactoring, ATDD)

  • Background in requirements decomposition, trade-off analysis, and systems integration

  • SAFe Agilest Certification or prior experience in Agile teams preferred

💼 Benefits & Perks

  • Competitive total compensation package

  • 3 weeks Paid Time Off + 11 Federal Holidays

  • Medical, Dental, Vision, Life, and Disability insurance

  • 401(k) with up to 4% match + annual profit sharing

  • Relocation assistance available

  • Continuous technical training and certification support

  • Opportunity to work on mission-critical national programs with emerging technology stacks

🎯 Candidate Snapshot

  • Experience: 7–10 years in software development (enterprise or government systems)

  • Education: Bachelor’s in Computer Science or equivalent experience

  • Security Clearance: TS/SCI w/ CI Poly (active)

  • Work Environment: 100% onsite – secure facility access required

  • Travel: None

This is a career-defining opportunity for software engineers seeking to apply their technical expertise toward high-impact, classified initiatives that shape the future of national defense and intelligence. If you thrive in fast-paced, mission-driven environments and value continuous learning — this is the role for you.

 

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