Senior API / Integration Engineer

Role Description

DecisionPoint seeks a Senior API / Integration Engineer to design, build, secure, and optimize enterprise-grade APIs and system integrations supporting applications across a large federal and DoD-aligned mission environment. This senior role enables interoperability across systems, aligns integration patterns with enterprise architecture, and ensures API performance, reliability, and security.

The Senior API / Integration Engineer partners with developers, cloud engineers, cybersecurity specialists, and mission stakeholders to deliver scalable, secure, well-documented APIs and integration services that support MC&FP’s broader application ecosystem and enterprise data flows. This position is fully remote.

Duties & Responsibilities

• Architect, build, and optimize enterprise APIs and backend integration services.
• Implement secure REST and GraphQL endpoints, schemas, and data contracts.
• Design integration workflows, service interactions, and middleware/API gateway connections.
• Ensure APIs comply with DoD cybersecurity policies, Zero Trust principles, and secure coding practices.
• Build and maintain integration pipelines between internal and external systems.
• Conduct API performance tuning, scalability improvements, and error-handling enhancements.
• Troubleshoot complex integration failures, data issues, and cross-system communication gaps.
• Support API versioning, lifecycle management, and migration planning.
• Produce API documentation including OpenAPI/Swagger specs, interface definitions, and usage guides.
• Collaborate with cloud engineering teams to optimize API hosting, routing, and authentication.
• Conduct peer code reviews, enforce development standards, and mentor junior developers.
• Participate in Agile ceremonies and support sprint-based delivery.

Qualifications

• Must hold an active Top Secret clearance, supported by a Tier 5 background investigation.
• Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related technical field.
• Minimum 10 years of experience in API development, backend engineering, or systems integration.
• Experience designing secure, scalable REST APIs and integration workflows.
• Experience supporting enterprise systems in federal or DoD environments.
• Experience troubleshooting complex backend and integration issues.
• Experience delivering code and system changes in Agile development environments.

Technical Knowledge

• Strong proficiency with RESTful API design, JSON standards, and schema modeling.
• Experience with API gateways, routing layers, and middleware (e.g., Kong, Apigee, AWS API Gateway).
• Strong understanding of authentication/authorization (OAuth2, SAML, JWT).
• Knowledge of secure coding practices and DoD cybersecurity requirements.
• Experience with integration patterns (synchronous/asynchronous, event-driven, message queues).

Technical Knowledge (Preferred)

• Experience with GraphQL API development.
• Experience with AWS cloud-native integration services (Lambda, API Gateway, EventBridge).
• Familiarity with microservices, container orchestration, and service mesh architectures.

Certifications

• Required: CompTIA Security+
• Preferred: AWS Developer or Architect certification
• ITIL v4 Foundation
• Integration or API architecture certifications

Skills

• Strong analytical and problem-solving abilities for complex integration challenges.
• Excellent communication and documentation skills.
• Ability to architect secure, scalable API solutions aligned with enterprise goals.
• High attention to detail and strong discipline around versioning and governance.
• Ability to collaborate across engineering, cloud, and cybersecurity teams.