System Integration Engineer - Rail

we are seeking a
Systems Integration Engineer
to help design, modernize, and sustain integrations for a
mission-critical, globally deployed identity and mobility platform
. This is a hands-on engineering role for someone who has built and operated complex system-to-system integrations across
Java microservices, event-driven architectures, edge environments, and cloud platforms
.

You will work on both
standards-based
and
custom integrations
spanning external data providers, identity and verification services, biometric and peripheral devices, access-control systems, and country- or customer-specific third-party platforms. The environment ranges from
low-power edge clusters in austere locations
to
large, centralized deployments
to
cloud-forward AWS architectures
.

This role is ideal for an engineer who enjoys solving hard interoperability problems, modernizing legacy interfaces, and building resilient integrations that operate reliably under real-world network, performance, and operational constraints.

• Design, build, and maintain secure, reliable 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
  running in a distributed platform 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 and 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 closely with software, cloud, network, QA, field engineering, analytics/observability, and security teams

• Bachelor's Degree in Computer Science or a 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 of the following:
  • RabbitMQ, Kafka, JMS, AMQP
    , or similar messaging platforms
  • MongoDB
    ,
    Elasticsearch/Open Search
    , or comparable data platforms
  • 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 such as 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-based architectures
• Ability to work effectively in a highly collaborative engineering environment with direct ownership of delivery outcomes

• Experience with
  Hashi Corp tooling
  , especially
  Consul, Nomad, and Vault
  , or with adjacent platforms whose skills transfer quickly
• Experience with
  AWS-native services
  and infrastructure automation
• Familiarity with
  ELK
  ,
  Grafana
  ,
  Kibana
  ,
  Logstash
  , or other observability stacks
• Experience integrating
  biometric devices
  , document readers, cameras, license plate readers, or other field peripherals
• Experience with
  degraded, disconnected, or low bandwidth environments

In each project we design, engineer and operate we care deeply about the legacy we’re leaving behind. As…