Rail Vehicle IT & Systems Integration Lead

Recruit Express Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Benefits offered by this job

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Job summary

Recruit Express Pte Ltd is seeking a Senior Subsystem Integration Supervisor to oversee the System Integrator's turnkey design, configuration and integration workflows on a railway project in Singapore. You will review SI deliverables, supervise hardware deployments, ensure compliance with EN / IEC standards, and coordinate with LTA/SBST stakeholders to guarantee safe, reliable operations.

The role demands strong technical ownership, risk-aware decision making, and hands-on testing of edge

Responsibilities

• Act as primary technical owner overseeing the System Integrator's turnkey design, configuration, and integration workflows.
• Review and approve all SI engineering deliverables, including logical/physical network architecture, capacity calculations, and CAD layouts.
• Supervise physical installations to ensure wiring schematics and mounting designs match approved guidelines without encroaching on train safety clearances (physical) and EMF interferences.
• Audit and enforce onboard hardware compliance with rolling stock standards (EN 50155, EN 45545-2 HL3, EN 50121-3-2) and IMDA/Telco 5G SA rules.
• Oversee deployment of Edge PCs, Data Diodes, Firewalls/ VPN, Managed Switches, and 5G Industrial Routers (Dual SIM, Private APN etc).
• Supervise OCC backend setup, validating the High-Availability Centralised Storage Server (CSS) and Firewall/VPN gateways.
• Manage configuration and stability of onboard wireless links (BLE/Zigbee/LoRaWAN/Wi-Fi) governed by the SI's RF Coexistence Study.
• Direct the integration of raw MVCS PLC telemetry and wired/wireless sensors.
• Verify edge processing behaviors, specifically Edge FFT filtering and automated Train ID/Timestamp data directory sorting.
• Strictly enforce the Zero-Inbound Policy by auditing the physical and logical configuration of the Unidirectional Hardware Data Diode.
• Witness and drive the 4-step Threat, Vulnerability & Risk Assessment (TVRA) to guarantee compliance with IEC 62443 and LTA guidelines.
• Validate store-and-forward mechanics and local buffering (min. 3-day on diode; 7-day on IoT) to secure Zero Data Loss during 5G link restoration.
• Lead and witness the formal Acceptance Test Procedure (ATP)
• Develop and implement Test Plans and ensure vendor reports against strict KPIs
• Verify manual USB data transfer capabilities, ensuring encrypted standalone logs merge cleanly into the CSS with a complete audit trail.
• Maintain proactive communication with the Design Engineers and Project Manager, and Project Team to provide real-time updates on allocated works.
• Act as a technical point of contact for external stakeholders, including LTA and SBST, to facilitate joint inspections and system handovers.
• Provide flexible support for miscellaneous technical tasks as directed by the Project or Commissioning Manager.

Job description

Recruit Express Pte Ltd is seeking a Senior Subsystem Integration Supervisor to oversee the System Integrator's turnkey design, configuration and integration workflows on a railway project in Singapore. You will review SI deliverables, supervise hardware deployments, ensure compliance with EN / IEC standards, and coordinate with LTA/SBST stakeholders to guarantee safe, reliable operations.

The role demands strong technical ownership, risk-aware decision making, and hands-on testing of edge