Commissioning Engineer

MDE Consultants Ltd • Rayleigh, Essex, United Kingdom • Posted June 19, 2026

Location Rayleigh, Essex
Job Type Full-time
Category architecture-and-engineering
Posted June 19, 2026
Commissioning Engineer – Battery Energy Storage Systems (BESS)

📍 Rayleigh, Essex
💷 £50 per hour
📅 Initial 3-Month Contract (Likely Extension to 6 Months+)
⏰ Monday–Thursday 08:00–18:00 | Early Finish Friday

We are currently seeking an experienced Commissioning Engineer to support the delivery of a major Battery Energy Storage System (BESS) project in Essex.

This is an excellent opportunity for commissioning professionals from a range of electrical infrastructure backgrounds, including power generation, utilities, substations, rail, renewables, industrial automation, data centres or transmission and distribution projects.

While previous BESS experience would be advantageous, we are particularly interested in candidates with strong commissioning, testing, energisation and fault-finding experience gained on complex electrical systems.

Key Responsibilities

* Support the commissioning and energisation of battery energy storage equipment a...

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