Sr. Engineer - MV Protection & Relay Engineering

Vertiv Co; Derry/Londonderry; On-site; GBP 65,000 - 90,000; Full time

Job summary

Vertiv Co seeks a complete Protection Relay Programming & Testing Engineer to own the full lifecycle of protection systems, including programming, settings, logic development, testing, and commissioning.

You will work with ABB, Siemens, and Schneider relays, and with Modbus/Profibus/Profinet IEC 61850 networks, contributing to FAT/SAT and site validation.

Qualifications

• B.E./B.Tech in Electrical Engineering is required.
• 7–12 years of experience in protection relay programming, testing and protection/control systems.
• Experience with MV switchgear, control and relay panels, and protection systems.

Responsibilities

• Program, configure, test, commission MV/LV protection systems.
• Verify relay settings against protection coordination studies.
• Prepare relay setting files, test procedures, commissioning reports.

Skills

Relay programming

Relay testing

MV protection

Protection coordination

Industrial comms

Relays (ABB/Siemens/Schneider)

OMI CROM equipment

FAT/SAT

Secondary injection testing

End-to-end testing

Education

B.E./B.Tech. in Electrical Engineering

Tools

ABB Relion

Siemens SIPROTEC

Schneider Easergy/SEPAM

OMICRON equipment

Job description

Job Description – Protection Relay Programming & Testing Engineer Position

MV Protection & Relay Engineering

Qualification & Experience

• B.E./B.Tech. in Electrical Engineering.
• 7–12 years of relevant experience in protection relay programming, relay testing and protection/control systems.
• Predominantly experienced in MV switchgear, control and relay panels, and electrical protection systems.

Core Technical Expertise

• Experience with platforms such as ABB Relion, Siemens SIPROTEC, Schneider Easergy/SEPAM, or equivalent.
• Strong knowledge of protection schemes including overcurrent, earth fault, directional protection, under/over-voltage, under/over-frequency, transformer, motor, and busbar protection.
• Hands‑on experience in protection relay programming, configuration, testing, commissioning, and troubleshooting for MV and LV protection systems.
• Strong experience with protection relays from:
  • ABB
  • Siemens
  • Schneider Electric
• Ability to interpret SLDs, protection schematics, control schematics, wiring diagrams, and protection philosophies.
• Hands‑on experience in secondary injection testing, functional testing, trip testing, interlock verification, and end‑to‑end protection testing.
• Experience with OMICRON or equivalent relay test equipment is highly preferred.
• Experience in FAT, SAT, commissioning, site testing, troubleshooting, and final validation of MV/LV protection systems.
• Ability to verify relay settings against approved protection coordination studies.
• Preparation and review of relay setting files, test procedures, test reports, commissioning reports, and protection documentation.

Communication & Networking Expertise

• Strong hands‑on knowledge of industrial communication networks and complete communication topology associated with MV/LV protection and control systems.
• Practical experience with:
  • Modbus RTU
  • Modbus TCP/IP
  • Profibus
  • Profinet
  • IEC 61850
  • Industrial Ethernet communication
• Strong understanding of IEC 61850 architecture, including IEDs, Station Bus, Process Bus, GOOSE, MMS, and SCL configuration.
• Ability to configure and troubleshoot communication mapping, data points, alarms, status, commands, measurements, events, and protection signals.
• Understanding of network switches, VLANs, IP addressing, gateways, network redundancy, and basic network diagnostics.
• Ability to troubleshoot communication issues across the complete chain—from protection relay/IED through network infrastructure, PLC/RTU, SCADA/EPMS, and higher‑level systems.

Control, SCADA & System Architecture

• Thorough understanding of the complete protection, control, and communication system architecture.
• Experience integrating protection relays with PLC, RTU, SCADA, EPMS/BMS, and other supervisory control systems.
• Ability to understand and review communication architecture drawings, network topology, I/O lists, signal lists, communication matrices, and cause‑and‑effect diagrams.
• Experience in FAT/SAT and end‑to‑end communication testing, including verification of commands, status, alarms, trips, measurements, events, and interlocks.

Desired Candidate Profile

The ideal candidate should be a complete Protection Relay Programming & Testing Engineer with strong hands‑on experience—not limited to relay software configuration.

They should be capable of independently handling the complete lifecycle of a protection system, including relay programming, protection setting implementation, logic development, secondary injection testing, functional testing, communication configuration, FAT/SAT, commissioning, troubleshooting, and final system validation.

The candidate should have a thorough understanding of MV protection systems, control and relay panels, protection coordination, industrial communication protocols, and the complete relay-to‑SCADA/EPMS architecture.

Strong practical experience with ABB, Siemens, and Schneider protection relays, together with Modbus, Modbus TCP/IP, Profibus, Profinet, and IEC 61850, is highly desirable.

Experience in MV switchgear manufacturing, system integration, protection engineering, testing, and commissioning will be strongly preferred.

About Us

The successful candidate will embrace Vertiv’s Core Principles & Behaviors to help execute our Strategic Priorities.

OUR CORE PRINCIPLES:

Safety. Integrity. Respect. Teamwork. Inclusion.

OUR STRATEGIC PRIORITIES

• High-Performance Culture
• Customer Focus
• Operational Excellence
• Innovation
• Financial Strength

VERTIV BEHAVIORS

• Own it
• Act with urgency
• Foster a customer‑first mindset
• Think big and execute
• Lead by example
• Drive continuous improvement
• Learn and seek out development
• Promote transparent & open communication

About Vertiv

Vertiv (NYSE: VRT) brings together hardware, software, analytics and ongoing services to enable its customers’ vital applications to run continuously, perform optimally and grow with their business needs. Vertiv solves the most important challenges facing today’s data centers, communication networks, and commercial and industrial facilities with a portfolio of power, cooling and IT infrastructure solutions and services that extend from the cloud to the edge of the network. Headquartered in Westerville, Ohio, USA, Vertiv employs around 34,000 people and does business in more than 130 countries. Visit Vertiv.com to learn more.

Equal Opportunity Employer

Vertiv is an Equal Opportunity/Affirmative Action employer. We promote equal opportunities for all with respect to hiring, terms of employment, mobility, training, compensation, and occupational health, without discrimination as to age, race, color, religion, creed, sex, pregnancy status (including childbirth, breastfeeding, or related medical conditions), marital status, sexual orientation, gender identity / expression (including transgender status or sexual stereotypes), genetic information, citizenship status, national origin, protected veteran status, political affiliation, or disability. If you have a disability and are having difficulty accessing or using this website to apply for a position, you can request help by sending an email to [e-mail]