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Backend Systems Engineer - IOT/Smart City (Ref 26487)

External
JOBLINE RESOURCES PTE. LTD. logoJobline Resources · Singapore
S$96K–S$126K/yrContractUnknownToday
Information Technology
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Responsibilities

  • Develop and maintain backend services and middleware for OT/IoT data ingestion using OPC-UA, MODBUS, and MQTT protocols.
  • Build data pipeline components that normalise, process, and route telemetry from field devices to platform services and 3D visualisation layers.
  • Integrate AI coding tools (e.g. Claude, Copilot) into daily development workflows for code generation, unit testing, and validation - this is an expected practice, not optional.
  • Write and maintain automated test suites covering protocol adapters, data transformation logic, and integration endpoints.
  • Collaborate with frontend Unity engineers and systems architects to define and implement API contracts (REST/WebSocket).
  • Participate in code reviews, contribute to technical documentation, and support deployment through CI/CD pipelines.
  • Troubleshoot field connectivity and protocol issues; work with OT/hardware teams on device commissioning and debugging
  • .Requirements
  • Degree in Computer Science, Engineering, or equivalent practical experience.
  • 2-5 years in backend or systems software engineering, with at least some exposure to OT/IoT environments.
  • Must-Have Requirements
  • Hands-on experience with OPC-UA, MODBUS, and MQTT - protocol implementation, not just conceptual familiarity.
  • Proficiency in backend development (Python, Node.js, Go, or Java - at least one).
  • Active use of AI tools for coding, testing, and validation in prior roles or personal projects.
  • Experience writing integration and unit tests; familiarity with test automation frameworks.
  • Comfortable working with message brokers (MQTT brokers, Kafka, or similar) and time-series or event-driven data.
  • Good to Have
  • Exposure to digital twin platforms or industrial IoT stacks.
  • Familiarity with OT security considerations (network segmentation, secure protocol configuration).
  • Experience with containerisation (Docker/Kubernetes) and CI/CD tooling.
  • Knowledge of BACnet, DNP3, or other industrial protocols.
  • Licence no: 12C6060

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