ECS

Senior API Security Engineer

ECS$120K — $150K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Current Secret security clearance, with ability to obtain Top Secret (TS) clearance with Sensitive Compartmented Information (SCI).
  • IAT II-level security certification such as CompTIA Security+ CE or similar.
  • Minimum 10 years of experience in API security engineering, application security, or cybersecurity in classified or federal environments.
  • Hands-on experience with API security methods using Kong Gateway, NGINX, Envoy, OAuth2, OpenID Connect, and Kubernetes.
  • Proven ability to conduct structured API security assessments within DevSecOps frameworks.

Responsibilities

  • Validate boundary controls for AI and ML model APIs in WDP Core Integration environments.
  • Review authentication and authorization flows, throttling configurations, and access controls.
  • Apply API security methodologies to assess operational behavior and detect misconfigurations.
  • Conduct assessments of external-model integrations, including Amazon Bedrock connectivity.
  • Produce mission-critical assessments and compliance reports regarding API boundary controls and operational risks.
  • Collaborate with various engineering teams to enhance operational readiness and program commitments.
  • Support Tier-4 incident-response actions with authoritative API security evidence and documentation.

Benefits

  • Access to cutting-edge technology and involvement in a critical defense initiative.
  • Collaborative work environment with multi-national engineering teams and mission partners.
  • Opportunities for professional development and skill enhancement in cybersecurity.
  • Position contributes directly to national security and military effectiveness.
Full Job Description
Everforth ECS is seeking a Senior API Security Engineer to work in the National Capital Region covering the Pentagon, Falls Church, and Fairfax. Please Note: This position is contingent upon contract award.

The War Data Platform (WDP) is a key initiative within the U.S. Department of War's (DoW) AI-First strategy introduced in early 2026. The WDP focuses on operational warfighting data and aims to accelerate the deployment of artificial intelligence (AI) on the battlefield. The WDP extends to Unclassified, Secret, and Top Secret environments, and supports collaboration between Combatant Commands, Joint Staff directorates, Senior Executive Service leaders, and operational analysts.

This role validates boundary controls for AI and machine-learning model APIs, proxy configurations, and external-model connectivity patterns within WDP Core Integration serving environments, applying enterprise API security methodologies to maintain mission assurance posture and operational readiness across all classification enclaves.
• Validates boundary controls for artificial intelligence and machine-learning model APIs, proxy configurations, and external-model connectivity patterns within War Data Platform (WDP) Core Integration serving environments supporting Department of War missions, Joint Staff analysts, Combatant Command elements, and Senior Executive Service leadership.
• Reviews authentication and authorization flows, throttling configurations, policy enforcement logic, and ingress and egress controls governing access to production-ready model endpoints.
• Applies API security methodologies using Kong Gateway, NGINX, Envoy, OAuth2, OpenID Connect, Kubernetes network policies, GitLab Continuous Integration, VMware environments, Elastic Stack, and Prometheus metrics to evaluate operational behavior, detect misconfigurations, and maintain mission assurance posture.
• Conducts structured assessments of external-model integrations-including Amazon Bedrock connectivity patterns-by validating token exchange mechanisms, policy boundaries, and cross-domain access controls aligned with enterprise DevSecOps standards.
• Performs change-approval activities by reviewing configuration updates, validating security impact, and documenting operational risk considerations for deployment pipelines and serving surfaces.
• Produces mission-critical deliverables-including API boundary-control assessments, policy-compliance reports, connectivity-pattern documentation, operational risk evaluations, and change-approval artifacts.
• Collaborates with Platform One, Cloud One, multi-national engineering teams, and cross-service mission partners to strengthen operational readiness, reinforce deployment consistency, and advance program value commitments across all enclaves.
• Supports Tier-4 incident-response actions by providing authoritative API security evidence, boundary-control documentation, and remediation guidance required for operational continuity and sustained mission performance.
• Performs other duties as assigned.
• Current Secret security clearance with the ability to obtain and maintain a Top Secret (TS) security clearance with Sensitive Compartmented Information (SCI).
• IAT II-level security certification (CompTIA Security+ CE, CompTIA CySA+, CompTIA Cloud+, Cisco CCNA Security, GIAC GSEC, GIAC GCED, or ISC² SSCP).
• Minimum 10 years of experience in API security engineering, application security, or cybersecurity engineering roles within classified or federal environments.
• Hands-on experience applying API security methodologies using tools such as Kong Gateway, NGINX, Envoy, OAuth2, OpenID Connect, and Kubernetes network policies to assess operational behavior, identify misconfigurations, and enforce boundary controls in production environments.
• Demonstrated experience conducting structured API security assessments of external-model integrations-including token exchange validation, policy boundary enforcement, and cross-domain access control verification-within enterprise DevSecOps frameworks.
• Strong problem-solving and decision-making capabilities, with a proven ability to weigh the relative costs and benefits of potential actions and identify the most appropriate solution.
• Highly developed interpersonal and oral/written communication skills, with the ability to effectively and professionally interact with a diverse set of stakeholders (from peers to end-users to executive management).

About ECS

ECS is a leading provider of digital solutions and services to the federal government. The company was founded in 2001 by Roy Kapani and has since grown to become a trusted partner to a wide range of government agencies. ECS offers a broad range of services, including cloud computing, cybersecurity, and artificial intelligence. The company has been recognized for its innovative solutions and has won numerous awards, including the AWS Public Sector Partner of the Year award.
Learn more about ECS
Size
2,000 employees
Industry

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