System Integration Engineer - Rail

Job description

We are seeking a Systems Integration Engineer to design, modernize, and sustain integrations for a mission‑critical, globally deployed identity and mobility platform. The role involves designing, building, and maintaining secure, reliable integrations using REST APIs, asynchronous messaging, secure file/data exchange, and device/peripheral interfaces. Modernize legacy integrations into Java‑based microservices within a distributed architecture. Build integrations across edge, data‑center, and AWS cloud deployment models. Engineer for resilience, observability, auditability, latency, and intermittent/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/testing approaches. Troubleshoot issues across application, data, messaging, and network layers. Partner closely with software, cloud, network, QA, field engineering, analytics/observability, and security teams.

Requirements

• Bachelor's Degree in Computer Science or related technical field or equivalent experience
• Minimum 12 years of experience in software engineering or systems integration
• Strong hands‑on experience building Java‑based distributed services
• Proven production experience with API integration and event‑driven messaging
• Experience with one or more messaging platforms such as RabbitMQ, Kafka, JMS, AMQP
• Experience with MongoDB or Elasticsearch/OpenSearch
• AWS deployment and operations in production environments
• Experience designing and supporting integrations in high‑availability, mission‑critical, or regulated environments
• Strong understanding of integration concerns like authentication/authorization, certificate‑based security, schema evolution, error handling and retries, observability and supportability
• Experience modernizing legacy or monolithic integrations into service‑oriented or microservices architectures
• Ability to work effectively in a highly collaborative engineering environment with direct ownership of delivery outcomes
• Preferred: Experience with HashiCorp tools (Consul, Nomad, Vault)
• Preferred: Experience with AWS‑native services and infrastructure automation
• Preferred: Familiarity with ELK, Grafana, Kibana, Logstash or other observability stacks
• Preferred: Experience integrating biometric devices, document readers, cameras, license plate readers, or other field peripherals
• Preferred: Experience with degraded, disconnected, or low‑bandwidth environments.

Skills