Battery Energy Storage System Engineer

Worley; Oman; On-site; OMR 18,000 - 30,000; Full time

Job summary

Worley is seeking an experienced electrical Engineer to lead BESS projects in Oman, overseeing installation, integration and commissioning, including BMS and safety checks. The role involves witnessing performance tests and supporting reliability assessments for utility-scale energy storage systems.

Ideal candidates have 8+ years in BESS design and commissioning, familiarity with IEC 62933-2-1, and experience as Owner’s Engineer on IPP projects under PPA regimes, with substation/interconnection

Qualifications

• Bachelor’s degree in electrical engineering; 8+ years in BESS design, integration and commissioning.
• Familiarity with IEC 62933-2-1 BESS performance testing standards and safety.
• Experience as Owner’s Engineer or Lender’s Technical Adviser on utility-scale renewables.
• Experience on IPPs with PPA testing and performance guarantees.
• Experience in substation/interconnection works (132 kV+).
• Regional experience in Oman/GCC preferred.

Responsibilities

• Supervise BESS installation, integration and commissioning, including BMS and safety verification.
• Witness BESS performance tests and support reliability verifications.
• Engage in design reviews and construction supervision for substations and interconnections.
• Coordinate with transmission system operator and off-taker as needed.

Skills

BESS design & integration

Battery testing & commissioning

Grid interconnection

IEC 62933-2-1 knowledge

Project supervision

Education

Bachelor’s degree in Electrical Engineering

Job description

About us

Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions.

Core Responsibilities:

• Supervision of BESS installation, integration and commissioning, including battery management system (BMS) and fire/thermal safety systems verification;
• Witness BESS Performance Test (Power Rating, Energy Capacity, Round-Trip Efficiency) and support Plant Reliability Run verification.

Other requirements

• Owner’s Engineer or equivalent Lender’s Technical Adviser experience on at least three (3) utility‑scale renewable energy projects (Wind and/or Solar PV, each of at least 100 MW capacity) that have reached Commercial Operation Date within the last ten (10) years;
• Owner’s Engineer experience on at least one (1) Battery Energy Storage System (BESS) project of at least 100 MWh capacity, including commissioning and performance testing oversight;
• Experience working on Independent Power Projects (IPPs) structured under a Power Purchase Agreement (PPA) with a national or regional Off‑taker, including familiarity with PPA testing, commissioning and performance guarantee regimes;
• Design review or construction supervision experience on grid substation and transmission interconnection works (132 kV or above), including interfacing with a national/regional transmission system operator.

• Demonstrated regional experience in the Sultanate of Oman and/or the wider GCC is preferred, including familiarity with the Oman Local regulation and Grid Code requirements.

Minimum Qualifications & Experience:

• Bachelor’s degree in electrical engineering; minimum 8 years’ experience in Battery Energy Storage System design, integration and commissioning;
• Familiarity with IEC 62933-2-1 BESS performance testing standards and BESS safety.

Moving forward together

We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values‑inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.

And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here.

And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.