Senior Cybersecurity Integration Engineer

About the position

The Senior Cybersecurity Integration Engineer secures and integrates the Customer's enterprise API gateway, drives it through the Risk Management Framework to a signed Authority to Operate (ATO), and keeps it authorized. The role pairs hands-on security engineering at the API boundary with ownership of the System Security Plan and the continuous monitoring that sustains it. Requires an active Moderate Background Investigation (MBI) at start.

Responsibilities

  • Design and enforce API security policy — authentication, authorization, token validation, rate limiting, payload validation, threat protection
  • Manage TLS, mutual TLS, and certificate and key lifecycle across all environments and trust relationships
  • Onboard applications, vendors, and SaaS services, coordinating firewall, proxy, DNS, and load balancer changes with owning teams
  • Integrate the gateway with enterprise identity and federation services
  • Harden gateway and hosts to STIG/SCAP and feed security telemetry to the enterprise SIEM
  • Promote configuration through the Customer's environments under Government change control
  • Author and maintain the SSP and control narratives against NIST 800-53 Rev 5, covering boundary, inventory, inheritance, and tailoring
  • Run the RMF package to ATO: evidence, assessor walkthroughs, finding resolution
  • Sustain ConMon: recurring scans, false positive validation, remediation and retest, POA&M closure, deviation requests, monthly reporting
  • Perform security impact analysis on changes and troubleshoot across gateway, network, identity, and application layers

Requirements

  • Active MBI, current and transferable as of your start date
  • U.S. citizenship, as required for Customer contractor staff
  • Eight years of hands-on cybersecurity or integration engineering on enterprise API gateway, IAM, or boundary security platforms in production, including three years in a Federal FISMA environment
  • Production ownership of an enterprise API gateway or comparable platform: policy authoring, upgrades, certificate lifecycle, environment promotion, and production support
  • Depth in API and web security protocols: OAuth 2.0, OpenID Connect, JWT validation, SAML 2.0 federation, mutual TLS, PKI, and the OWASP API Security Top 10
  • Experience integrating services across network and security boundaries, coordinating changes with separate firewall, proxy, and identity teams
  • Authorship of a System Security Plan for a Federal system, writing control narratives from actual configuration and documenting inherited, hybrid, and tailored controls
  • Experience carrying a system or major component through RMF to a signed ATO, then sustaining it under continuous monitoring
  • Command of FISMA and NIST 800-37, 800-53 Rev 5, 800-53A, and 800-137
  • End-to-end vulnerability management: scanning, validating false positives, remediating, retesting, and documenting closure
  • Linux administration on RHEL or CentOS, shell scripting, and SIEM log integration such as Splunk
  • Technical writing strong enough that control narratives hold up under assessor review
  • Bachelor's degree in Engineering, Computer Science, Cybersecurity, or Information Systems, or equivalent hands-on experience

Nice-to-haves

  • An active professional security certification such as CISSP, CISA, CISM, CAP or CGRC, GIAC, or Security+
  • Time as an ISSO or ISSM, or directly supporting one, on a FISMA-reportable system
  • Hands-on authoring inside a GRC or RMF tool of record such as eMASS, Xacta, or CSAM
  • An active vendor certification on the program's gateway platform, or willingness to earn it within 90 days; training provided
  • Prior support to a Federal financial or tax administration program
  • Experience with configuration-as-code, separated control and data planes, and API-driven gateway administration
  • Depth in a federation platform such as Ping Federate, Ping Access, or CA SiteMinder

Benefits

  • 401(k) matching
  • Bonus based on performance
  • Competitive salary
  • Dental insurance
  • Health insurance
  • Paid time off
  • Parental leave
  • Tuition assistance
  • Vision insurance
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