Senior API Integration Architect - Enterprise Gateway

BaseCamp Consulting & Solutions

Reston (VA)

On-site

USD 120,000 - 180,000

Full time

14 days+

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Job summary

BaseCamp Consulting & Solutions is seeking a Senior API Integration Developer to own API gateway contracts, onboard upstream apps, and extend gateway behavior with custom modules. You will work hands-on from API design to containerized deployment, including OAuth 2.0, JWT, and TLS security, deploying on OpenShift and ensuring regression validation for migrated routes.

The role requires deep Java/Spring Boot expertise, enterprise-scale RESTful APIs, and strong DevOps skills.

Qualifications

Active MBI suitability determination, current and transferable as of start date.
U.S. citizenship, as required for Customer contractor personnel.
Ten years of hands-on application development and systems integration in production, including three years supporting a Federal system subject to FISMA.
Java and Spring Boot depth, building and consuming RESTful APIs and microservices at enterprise scale.
Demonstrated integration of applications with an API gateway or reverse proxy, including routing, authentication, and rate limiting behavior.
Working command of OAuth 2.0, OpenID Connect, JWT validation, SAML federation, and TLS in application code.
Front-end development in ReactJS or Angular sufficient to change how a client authenticates against and consumes a gateway-fronted API.
Container packaging and deployment on Kubernetes or Red Hat OpenShift.
Experience migrating a production application onto new hosting or a new access path with functionality and external interfaces preserved.
Dependency and vulnerability remediation across a supported application portfolio.
Regression and smoke validation of changed components, with defensible evidence of what was tested.
CI/CD pipeline work in Jenkins, GitHub Actions, or Azure DevOps, with Git-based source control.
Relational database proficiency and SQL performance troubleshooting.
Technical writing — interface control documents, design artifacts, and decision records that hold up under Government review.
Bachelor's degree in Computer Science, Engineering, or Information Systems, or equivalent hands-on experience.

Responsibilities

Design, build, and maintain RESTful services and API contracts published through the enterprise gateway, including OpenAPI specifications and versioning.
Onboard and refactor upstream applications to be consumed through the gateway, preserving functionality and external interfaces through the cutover.
Implement token-based authentication and authorization in application code — OAuth 2.0 flows, JWT issuance and validation, claim and session handling.
Develop custom gateway plugins and policy modules where standard functionality does not meet the requirement.
Make the client-side and service-layer changes that gateway-mediated authentication and routing require.
Package and deploy services as containers on Red Hat OpenShift and promote them through Customer environments under Government change control
Remediate vulnerable and out-of-support dependencies across supported applications, working findings with cybersecurity
Execute regression and smoke validation against every changed route and component before release
Produce interface designs, technical documentation, and architectural decision records for systems as delivered
Troubleshoot end to end across gateway, service, database, and client layers
Deliver in Agile ceremonies alongside Government product owners and other contractor teams