Application Security Engineer III

trueanomalyinc; Denver (CO); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare coverage

Flexible time off

Lunch provided

401(k) retirement plan

Fitness reimbursement

Dog Fridays

Equity participation

Job summary

True Anomaly in Denver seeks an Application Security Engineer III to implement and audit security controls for space systems meeting government standards. You will work at the intersection of security engineering, compliance frameworks (NIST 800-171/800-53), and modern cloud-native architectures to safeguard satellite mission control software and flight systems.

You will design and implement application-level security controls including audit logging, incident response capabilities, access

Qualifications

• 3+ years of experience in application security, product security, or security engineering.
• Hands-on experience implementing security controls for compliance frameworks such as NIST 800-171, NIST 800-53, FedRAMP, or CMMC.
• Strong software engineering skills with ability to write production-quality code in Python, Rust, Elixir, C++, or similar.
• Experience with cloud security (Azure preferred, AWS or GCP acceptable).
• Threat modeling and risk assessment; authentication/authorization patterns (OAuth2, JWT, RBAC, ABAC); cryptography basics.
• Eligible for DoD Secret or TS/SCI clearance.

Responsibilities

• Create security architecture documentation and operational security guides for government authorization processes.
• Drive vulnerability management program with defined SLAs for remediation (30/90/180 days by severity).
• Perform security code reviews for Elixir, Python, C++, and JavaScript codebases.
• Collaborate in the triage and management of security automations using SAST (CodeQL, Semgrep), SCA (JFrog Xray), and DAST tools.
• Collaborate with engineering teams to address security findings and implement secure coding practices.
• Develop and deliver security training to software engineers and systems administrators across the organization.
• Create and manage incident response playbooks specific to application security events.
• Evaluate and integrate third-party security solutions to enhance overall security capabilities.

Skills

Application security

Python

Rust

Elixir

C++

OAuth2/JWT

Cloud security

Threat modeling

Zero Trust

Team collaboration

DoD clearance eligible

Job description

Space is a warfighting domain. True Anomaly seeks those with the talent and ambition to build the technology that secures it.

OUR MISSION

True Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors - enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground.

OUR VALUES

Be the offset. We create asymmetric advantages with creativity and ingenuity.

What would it take? We challenge assumptions to deliver ambitious results.

It's the people. Our team is our competitive advantage and we are better together.

BENEFITS & PERKS *

• Best-in-class healthcare: 100% company-paid medical, dental, and vision coverage for you and your dependents, with HSA/HRA options
• Generous time off: Flexible Time Off (FTO) for exempt employees, accrued PTO of up to 25 days for non-exempt employees, plus 12 paid holidays; Parental Leave; Sick Leave
• Fuel for your day: Daily catered lunch and unlimited snacks for in-office employees
• And more: 401(k) retirement plan, fitness reimbursement, and Dog Fridays
• Equity participation: Equity is included as part of our total compensation package, giving you an opportunity to share in the company's success.

*Do not apply to fixed term and temporary roles

YOUR MISSION

As an Application Security Engineer III, you will be instrumental in implementing and auditing security controls for mission-critical space systems that must meet stringent government compliance requirements. You will work at the intersection of security engineering, compliance frameworks (NIST 800-171/800-53), and modern cloud-native architectures to ensure our satellite mission control software and flight systems meet Department of Defense security standards.

You will design and implement application-level security controls including comprehensive audit logging, incident response capabilities, access controls, and security monitoring-all while working closely with product engineering teams to shift security to ensure optimal outcomes.

If you thrive in a fast-paced environment where you can build security controls from the ground up and see the direct impact of your work on national security space operations, this mission is for you.

This position requires the ability to obtain and maintain a security clearance.

RESPONSIBILITIES

• Create security architecture documentation and operational security guides for government authorization processes
• Drive vulnerability management program with defined SLAs for remediation (30/90/180 days by severity)
• Perform security code reviews for Elixir, Python, C++, and JavaScript codebases
• Collaborate in the triage and management of security automations using SAST (CodeQL, Semgrep), SCA (JFrog Xray), and DAST tools
• Collaborate with engineering teams to address security findings and implement secure coding practices
• Develop and deliver security training to software engineers and systems administrators across the organization
• Create and manage incident response playbooks specific to application security events
• Evaluate and integrate third-party security solutions to enhance overall security capabilities

QUALIFICATIONS:

• 3+ years of experience in application security, product security, or security engineering
• Hands-on experience implementing security controls for compliance frameworks such as NIST 800-171, NIST 800-53, FedRAMP, or CMMC
• Strong software engineering skills with ability to write production-quality code in at least one language (Python, Rust, Elixir, C++, or similar)
• Experience with cloud security (Azure preferred, AWS or GCP acceptable)
• Solid understanding of secure architecture principles including:
• Threat modeling and risk assessment
• Authentication and authorization patterns (OAuth2, JWT, RBAC, ABAC)
• Cryptography and key management
• Defense-in-depth and Zero Trust principles
• Proven ability to work collaboratively with engineering teams to implement security controls without blocking velocity
• Eligible for DoD Secret or TS/SCI clearance

PREFERRED SKILLS:

• Active TS/SCI clearance or ability to obtain and maintain a security clearance
• Direct experience with NIST 800-171 Rev 3 or NIST 800-53 implementation projects (gap analysis, control implementation, evidence collection)
• Experience with Department of Defense Impact Levels (IL2/IL4/IL5/IL6) or STIGs (Secure Technical Implementation Guides)
• Familiarity with Elixir/Erlang/Phoenix or other functional programming ecosystems (Scala, Haskell, F#, OCaml)
• Experience with Azure Government Cloud or other FedRAMP-authorized cloud environments
• Experience using Ghommit tool

Background in DevSecOps or Platform Security Engineering:

• GitOps workflows and CI/CD security
• Infrastructure as Code security (Terraform, Bicep, Pulumi)
• Kubernetes security (Pod Security Standards, network policies, service mesh)
• Experience with security incident response including detecti