> Markdown version of [/jobs/ext/3807950-senior-integration-engineer](https://www.wearedevelopers.com/jobs/ext/3807950-senior-integration-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Integration Engineer - **Company:** Concept Solutions - **Location:** Reston, VA, United States - **Experience:** Expert - **Salary:** $170,000.0 - $180,000.0 - **Contract:** Permanent contract - **Skills:** Application Portfolio Management, Systems Integration, Openapi, Reliability of Systems, Change Data Capture, Debezium, Enterprise Integration, Api Gateway, Restful APIs, Mulesoft - **Published:** October 17, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=1d225de239b52ae8 ## About the Role * 7+ years of experience in integration engineering, including REST APIs, OpenAPI specifications, API gateways, and message-based or Change Data Capture (CDC) integration patterns. * Demonstrated experience working with legacy interfaces and integrating systems developed by other teams or vendors. * Ability to troubleshoot complex integration issues and support production application environments. Preferred Qualifications * Experience with Envoy, Debezium, MuleSoft, or similar integration technologies. * Current favorably adjudicated Tier 5 investigation or active Top Secret clearance. ## Description As a Senior Integration Engineer, you will play a key role in maintaining and enhancing the integration services that connect these applications. You will work with API gateways, legacy interfaces, and modern integration patterns to ensure reliable communication between systems while supporting the continued operation of existing mission-critical applications. * Maintain privileged access to integration services and API gateways connecting the application portfolio. * Troubleshoot and resolve integration incidents, defects, and connectivity issues to ensure system reliability and continuity. * Maintain integration contracts, correlation identifiers, and acknowledgment mechanisms across connected systems. * Establish and maintain OpenAPI contracts at the platform gateway to standardize existing integrations. * Support the platform team's data feeds and integration requirements. * Work with legacy interfaces and existing application integrations to support modernization without disrupting ongoing operations.