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From the employer's careers site First seen 1 Nov 2026

Security Architect

Leidos Reston, VA Hybrid senior full-time

Salary

$154,050 - $278,475 per year

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Description

We are seeking a Security Architect to join our team, supporting the creation of an Enterprise AI Platform and Digital Services Framework for a Defense Intelligence Enterprise (DIE) client.

As a Security Architect, you will provide technical security expertise in a primarily cloud infrastructure, focusing on leading teams through the Risk Management Framework to system ATOs across multiple domains.

Key responsibilities include:

  • Providing expert guidance to enable streamlining ATO management processes with engineering solutions and best practice efficiencies
  • Leading solution architecture and implementation of streamlined security, governance, and accreditation support model, including automation of compliance processes
  • Providing expert technical guidance to team members while employing security solutions
  • Directly interacting with client CIO and Security POCs
  • Creating, improving, and maintaining security policies and procedures
  • Providing operating system hardening and system patching guidance based on DISA STIGs and NIST publications
  • Analyzing security incidents and providing recommendations for resolution
  • Managing individual project priorities, deliverables, and deadlines
  • Fostering an environment of collaboration with team members to provide quality service and product to our customer

Requirements:

  • BS degree and 15+ years of prior relevant experience or Masters with 15+ years of prior relevant experience
  • An active TS/SCI clearance with the ability to obtain/maintain a Polygraph
  • At least one of the following DoD 8570.01-M IASAE Level II certifications: CISSP, CISSP-ISSAP, CISSP-ISSEP, CSSLP, or CASP+ CE
  • Familiarity with NIST Special Publications, e.g., NIST SP 800-27, 30, 37, 53, 60
  • Experience with CNSS publication CNSSI 1253
  • Experience supporting DoD/IC systems through the entire Risk Management Framework Plus (RMF) process to ATO
  • Experience with incident response plans, plans of actions and milestones (POA&Ms), risk management plans, and vulnerability management plans
  • Experience establishing and maintaining a System Security Engineering (SSE) management process to integrate security and privacy controls into complex hardware and software systems
  • Experience managing a team of Cyber Security Engineers (CSEs) and Information System Security Officers (ISSOs)
  • Experience using Tenable Security Center and all components
  • Experience with technologies such as Linux, Windows, firewalls, gateways, proxies, VPCs, and public key infrastructure
  • Strong analytical, communication, problem-solving, and interpersonal skills

Preferred qualifications:

  • An active TS/SCI clearance with Poly
  • Certified Scrum Master (CSM) or SAFe Scrum Master (SSM) certification
  • Successfully achieved ATO under RMF+ across multiple domains
  • Experience working in Agile and DevOpsSec environments
  • Experience with big data applications
  • Experience with Jira and Confluence
  • Experience with OIDC or Oauth2
  • Experience with any of the following technologies: Kubernetes, Rancher, or Cloudera containerization technologies, CI/CD tools like Jenkins or Gitlab, Elasticsearch, Active Directory, SQL and NoSQL databases, scripting languages like bash, python, or PowerShell

Skills

Required

  • cloud infrastructure
  • Risk Management Framework
  • security technologies
  • industry best practices
  • NIST Special Publications
  • CNSS publication CNSSI 1253
  • DoD/IC systems
  • incident response plans
  • System Security Engineering
  • Tenable Security Center
  • Linux
  • Windows
  • firewalls
  • gateways
  • proxies
  • VPCs
  • public key infrastructure

Nice to have

Ready to apply?

You apply with the employer directly. Their original posting is here: https://leidos.wd5.myworkdayjobs.com/en-US/External/job/Reston-VA/Security-Architect_R-00189037

Apply on Leidos