Systems Integration Engineer - TS/SCI, Java Microservices

Global C2 Integration Technologies; Reston (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Global C2 Integration Technologies seeks a Senior Systems Integration Engineer to design, modernize, and sustain integrations for a mission-critical identity and mobility platform. This hands-on role spans Java microservices, event-driven architectures, edge environments, and cloud deployments.

You will implement secure integrations, modernize legacy interfaces, and collaborate with cross-functional teams to ensure availability and performance in high-availability settings across distributed

Qualifications

• Eight or more years of experience in software engineering or systems integration.
• Strong hands-on experience building Java-based distributed services.
• Production experience with API integration and event-driven messaging.
• Experience with RabbitMQ, Kafka, JMS, AMQP, MongoDB, Elasticsearch/OpenSearch, or AWS production deployment/operations.
• Experience designing and supporting integrations in high-availability, mission-critical, or regulated environments.
• Strong understanding of authentication/authorization, certificate-based security, schema evolution, error handling/retries, observability, and supportability.
• Experience modernizing legacy or monolithic integrations into service-oriented or microservices-based architectures.
• Ability to work effectively in a highly collaborative engineering environment with direct ownership of delivery outcomes.

Responsibilities

• Design, build, and maintain secure integrations between a distributed platform and third-party systems using REST APIs, asynchronous messaging, secure file/data exchange, and device/peripheral interfaces.
• Modernize legacy integrations into Java-based microservices operating within a distributed platform architecture.
• Build integrations across edge, data center, and AWS cloud deployment models.
• Engineer integrations for resilience, observability, auditability, latency, and intermittent or low-bandwidth network conditions.
• Integrate with government and commercial systems such as identity and verification services, traveler data platforms, biometric and document-capture peripherals, and access-control/gate systems.
• Define interface contracts, schemas, versioning strategies, retry/idempotency behavior, and certification/test approaches.
• Troubleshoot issues across application, data, messaging, and network layers.
• Partner with software, cloud, network, QA, field engineering, analytics/observability, and security teams.

Skills

Java

Distributed systems

API integration

Event-driven messaging

Security & auth

Observability

Collaboration

Tools

RabbitMQ

Kafka

JMS

AMQP

MongoDB

Elasticsearch/OpenSearch

AWS

Job description

Global C2 Integration Technologies seeks a Senior Systems Integration Engineer to design, modernize, and sustain integrations for a mission-critical identity and mobility platform. This hands-on role spans Java microservices, event-driven architectures, edge environments, and cloud deployments.

You will implement secure integrations, modernize legacy interfaces, and collaborate with cross-functional teams to ensure availability and performance in high-availability settings across distributed