OT Field Engineer – contract

Vantage; Dublin; On-site; EUR 92,000 - 111,000; Full time

Job summary

Vantage Resources is seeking an experienced OT Field Engineer to support a major telemetry upgrade programme across the Greater Dublin Area. You will replace PSTN/GSM with IP-based 4G, install telemetry outstations, and commission related panels.

Responsibilities include site surveys, installation of serial-to-Ethernet converters and 4G routers, and coordinating with SCADA teams. Travel across multiple sites is required; a full driving license and right to work in Ireland are mandatory.

Qualifications

• Hands-on OT/industrial automation or utilities telemetry experience.
• Experience with legacy RTU/telemetry in critical infrastructure.
• Ability to travel across multiple sites within Greater Dublin Area and hold right to work in Ireland.

Responsibilities

• Conduct site surveys of telemetry and communications infrastructure, including RTUs, modems, serial interfaces, power supplies, and antenna requirements.
• Install, configure, and commission serial-to-Ethernet converters and industrial 4G routers.
• Configure communications equipment to integrate with legacy RTUs and coordinate networking changes with SCADA and client networking teams.
• Perform end-to-end communications testing, including telemetry performance, alarms, polling, failover, and recovery testing.
• Support the installation, wiring, and commissioning of IP-based telemetry outstations and Marshalling PLC panels.
• Connect field instrumentation, install LAN cabling, and verify Modbus TCP/IP signals against approved I/O and signal lists.
• Assist with cutover activities and safely decommission legacy telemetry equipment following client approval.
• Produce accurate site survey reports, commissioning records, as-built documentation, and handover packs.
• Coordinate site access with Operations and Telemetry Maintenance teams while working within Permit to Work procedures.
• Attend programme meetings, provide progress updates, and proactively identify and elevate technical or site-related risks.

Skills

OT

Telemetry

Serial communications

Modbus TCP/IP

Industrial networking

4G routers

Site surveys

Wiring diagrams

Permit to Work

Driving license

Job description

• We are seeking an experienced OT Field Engineer to join a major communications remediation and telemetry upgrade programme across a national water utility network in the Greater Dublin Area. This is an exciting opportunity to work on critical infrastructure projects, modernising legacy communications systems by replacing PSTN and GSM technologies with IP-based 4G solutions and supporting the installation and commissioning of new telemetry outstations.

Role and Responsibilities

• Conduct site surveys to assess existing telemetry and communications infrastructure, including RTUs, modems, serial interfaces, power supplies, and antenna requirements.
• Install, configure, and commission serial-to-Ethernet converters and industrial 4G routers.
• Configure communications equipment to integrate with legacy RTUs and coordinate networking changes with SCADA and client networking teams.
• Perform end-to-end communications testing, including telemetry performance, alarms, polling, failover, and recovery testing.
• Support the installation, wiring, and commissioning of IP-based telemetry outstations and Marshalling PLC panels.
• Connect field instrumentation, install LAN cabling, and verify Modbus TCP/IP signals against approved I/O and signal lists.
• Assist with cutover activities and safely decommission legacy telemetry equipment following client approval.
• Produce accurate site survey reports, commissioning records, as-built documentation, and handover packs.
• Coordinate site access with Operations and Telemetry Maintenance teams while working within Permit to Work procedures.
• Attend programme meetings, provide progress updates, and proactively identify and elevate technical or site-related risks.

What you need

• Proven hands‑on experience in Operational Technology (OT), industrial automation, or utilities telemetry field engineering.
• Experience working with legacy RTU or telemetry equipment within water, wastewater, gas, electrical utilities, or other critical infrastructure environments.
• Strong knowledge of serial communications, including RS232, RS485, modem configuration, and serial-to-Ethernet conversion.
• Experience configuring and commissioning industrial 4G routers and communications equipment.
• Good understanding of Modbus TCP/IP and industrial networking protocols.
• Ability to interpret wiring schematics, cable schedules, I/O lists, and engineering drawings.
• Experience working on live operational sites under a Permit to Work or similar safe system of work.
• Full clean driving license and willingness to travel across multiple sites throughout the Greater Dublin Area.
• Full right to work in Ireland.

What’s on offer:

• Daily rate Contract
• 500-600

Vantage Resources is an equal opportunity employer. All qualified applicants will receive equal consideration for engagement and/or employment. An inclusive and diverse workforce is an essential part of the development of our organisation’s culture which we believe enhances both our working environment and the service we provide to our customers.