Senior API Developer Security Clearance

Position: Senior API Developer with Security Clearance
MANTECH seeks an experienced Senior API Developer to design, build, and maintain mission-critical integrations using Mule Soft. You will be a key member of a six-person team supporting the integration, deployment and production sustainment of the Mule Soft Private Cloud Edition (PCE) solution supporting a key Intelligence Community (IC) customer. This position is based in Chantilly, VA In this hands-on role, you will apply API-led connectivity principles to connect diverse enterprise systems, including Salesforce, on-prem, cloud services or other SaaS platforms.

You will work within a fast-paced Agile (Scrum) environment to rapidly deliver new features, integrate security (Dev Sec Ops ) at every step, and ensure the operational stability of the platform. Responsibilities include but are not limited to:
* Design, build, test, and deploy robust, secure, and reusable APIs and integrations.

* Serve as a subject matter expert on API-led connectivity, runtime management, and connector configuration.

* Develop and deploy new APIs, connectors, and data transformations based on prioritized requirements from the product backlog.

* Conduct static/dynamic code analysis and vulnerability scanning to ensure secure code.

* Perform comprehensive unit, integration, and performance testing to ensure the quality and reliability of all new features.

* Provide on-call Tier 2/3 support for platform-related incidents and service requests related to API performance or errors, as needed.

* Support security accreditation (RMF/ATO) activities by implementing required security controls and remediating findings from the Plan of Action & Milestones (POA&M), as needed.

Minimum Qualifications:

* 6+ years of hands-on software development experience for an IC customer

* 6+ years of experience in a customer facing role supporting an IC customer

* 5+ years of experience designing and building secure, robust, and reusable RESTful APIs using API-led connectivity principles.

* 5+ years hands-on experience programming in Java

* Familiarity with Dev Sec Ops  practices, including CI/CD pipelines, static/dynamic code analysis, and vulnerability scanning.

* Strong understanding of integration patterns, data transformations, error handling, and monitoring.

* Experience with integrating security best practices into the Dev Sec Ops  lifecycle.

Preferred Qualifications:

* Mule Soft Developer or Architect Certification.

* Experience integrating with Salesforce.

* Experience with the Mule Soft Anypoint Platform

* Experience with containerization and orchestration (e.g., Kubernetes).

* Familiarity with the Risk Management Framework (RMF) and NIST SP 800-53

* Experience writing technical documentation Clearance Requirements:
* Must have a current/active TS/SCI with polygraph.

Physical Requirements:

* Must be able to remain in a stationary position 50% of the time.

* Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

* Frequently communicates with co-workers, management, and customers, which may
involve delivering presentations. Must be able to exchange accurate information in
these situations.