Senior OT​/SCADA Integration & Commissioning Lead

Job Description

Senior OT / SCADA Integration & Commissioning Lead (Industrial Automation & Infrastructure Projects) –

Location:

London

We are seeking a Senior OT / SCADA Integration & Commissioning Lead to support the delivery of complex industrial and infrastructure projects, with a focus on system integration, commissioning and technical coordination in field environments. The role is designed for a senior technical professional evolved into coordination, capable of operating between hands‑on SCADA/PLC work, system‑level integration, and coordination of EPC contractors, vendors and operations.

This is not a pure Project Manager role, but a technical delivery and integration role.

The position sits within projects characterised by multi‑vendor SCADA environments, complex OT system integration, commissioning‑intensive phases, and interaction with EPCs, OEMs and plant operators. Key challenge: ensuring systems are not only installed, but fully integrated and operational in real conditions.

• Lead and execute SCADA and control systems commissioning activities
• Validate integration between:
  • PLC systems
  • SCADA platforms
  • third‑party/OEM systems
• Ensure correct behaviour of:
  • signals
  • commands vs feedback
  • system states

• Lead and support the configuration, validation and troubleshooting of industrial communication networks as a core part of system integration and commissioning.

• Work hands‑on with industrial network infrastructure, including:
  • configuration of managed industrial switches
  • IP addressing aligned with system architecture
  • VLAN configuration and traffic segmentation
  • basic routing concepts (subnets, gateways, inter‑network communication)
• Support and validate network topologies:
  • star / ring / redundant architectures
  • distributed I/O networks
  • separation between control, SCADA and external systems

• Ensure correct configuration and operation of:
  Profinet, Modbus TCP, OPC UA
• Validate end‑to‑end data flow across: field devices, PLCs, SCADA systems
• Identify and resolve:
  • data inconsistencies or stale values
  • intermittent communication
  • addressing/configuration mismatch
  • protocol‑level issues

• Diagnose issues such as:
  • connectivity failures
  • latency / instability
  • physical layer issues (cabling, ports, redundancy switching)
  • switch misconfiguration
• Apply structured troubleshooting:
  • trace signals (field → PLC → network → SCADA)
  • isolate root cause (logic vs network vs configuration)
  • validate real vs displayed system state

• Ensure network configuration supports:
  • reliable command execution
  • feedback consistency
  • real‑time performance
• Detect scenarios where:
  • systems appear functional but are degraded
  • SCADA does not reflect real system state

• Interface with:
  • network / IT / OT security
  • vendors / integrators
• Align:
  • network configuration
  • system architecture
  • commissioning requirements

• Validate that networks are: stable, properly structured, aligned with system criticality
• Ensure readiness for: FAT / SAT, commissioning, handover

• Own and ensure end‑to‑end coherence of system behaviour across: field devices, PLC logic, industrial network, SCADA systems

• Ensure full alignment between: PLC states, transmitted data, SCADA representation
• Resolve discrepancies between: commanded vs actual state, logic vs visualisation, real system vs operator perception

• Validate traceability of signals: field → PLC → network → SCADA
• Diagnose issues by: tracing signal origin, analysing transformations, validating final behaviour

• Identify situations where:
  • SCADA shows operation but system is not functioning
  • feedback does not reflect real status
  • communication creates false truths
• Ensure system avoids: misleading status, silent failures, undetected degradation

• Ensure that: PLC logic, communications, SCADA operate as a single coherent…