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Kotlin Backend Engineer (Integration Connectors)

Heirs Technologies verified
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Location
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Work Model
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27% Remote · 20% Hybrid · 53% On-site
Job Type
work Full-time
External Interest
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Salary
payments Competitive

Intelligence Match

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Skills Match 87%
Experience Match 88%
Portfolio Match 84%
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About the role

We are seeking a skilled Kotlin Backend Engineer to design, build, and maintain event-driven connectors for our integration platform. You will own connectors end-to-end, from development to production support, and collaborate with cross-functional teams to ensure reliable, secure, and scalable services. This role is ideal for someone with strong JVM backend experience and a passion for integration technologies.

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Responsibilities

  • Design, build, and maintain event-driven connectors in Kotlin using Quarkus and Apache Camel, following the DSF connector architecture.
  • Own connectors end-to-end, including development, integration testing, deployment, observability, and production support.
  • Integrate third-party and internal APIs using production-grade security, including OAuth/JWT, request signing, mutual TLS (mTLS), and secure secrets management.
  • Implement reliability patterns such as idempotency, retries with backoff, dead-letter handling, message freshness validation, and Kafka consumer group strategies.
  • Develop automated unit and integration tests using QuarkusTest, Testcontainers/Kafka Dev Services, and WireMock.
  • Build and deploy containerised applications using Docker and CI/CD pipelines while supporting Kubernetes deployment configuration.
  • Collaborate with the Plumery engineering team on event catalogue alignment, schema versioning, and messaging standards.
  • Work closely with internal platform, API gateway, monitoring, and operations teams to ensure reliable production services.
  • Produce and maintain technical documentation, connector specifications, operational runbooks, and support documentation.
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