Battery and Energy Storage System Senior Engineer

To strengthen and expand our leading position in renewable energy advisory across Sub-Saharan Africa, we are looking for a Battery and Energy Storage System (BESS) Engineer to join our team based in Cape Town, South Africa.

The core responsabilities are structured around three core pillars:

1. Technical Expertise:

Feasibility

• Advise clients on the selection of cutting-edge battery technologies
• Support optimal system sizing, including hybridisation with solar and wind assets
• Assess technical and financial feasibility of BESS deployments within African markets

Strategy

• Conduct market and regulatory analyses across Sub-Saharan Africa
• Identify revenue streams including energy trading, ancillary services, and flexibility markets
• Support client decision-making through data-driven insights and modelling

Development

• Support BESS projects from early-stage design through to contracting, construction, and commissioning
• Contribute to technical specifications, procurement processes, and contractor evaluation

Operation & Performance

• Provide recommendations to improve system availability, performance, and lifespan
• Support clients in optimising operational strategies and asset management

Grid Integration

• Address grid integration challenges specific to emerging and evolving power systems
• Support the integration of storage solutions into utility and hybrid systems

2. Growth & Standardization:

• Contribute to the development of 3E’s storage offering across Africa.
• Support the definition of a regional roadmap for BESS services.
• Develop tools, methodologies, templates, and guidelines to ensure consistent delivery quality.
• Continuously improve processes based on project experience and regional learning

3. Training & Knowledge Transfer:

• Mentor and train colleagues on BESS-related topics, ensuring the consistent upskilling of company personnel.
• Facilitate the exchange of technical knowledge and best practices across all global offices.

We are looking for someone who combines technical excellence with a pragmatic, commercially minded approach, and who is eager to contribute to the energy transition in Africa.

• You hold a Master's degree in Electrical Engineering, Energy Systems or equivalent.
• You have a solid experience in industry, with a minimum 3-5 years of experience in BESS design and deployment focused on Li-on technology.
• You have strong Project Management skills and can manage multiple projects simultaneously.
• You show a strong interest in renewable energies, and this reflects in your way of life.
• You are analytical, structured and solution-oriented, with strong communication skills.
• You are curious, proactive and confortable working in dynamic & evolving markets.
• Your presentation skills are on point and you like participating in group discussions.

Bonus points for:

• Knowledge of running BESS simulations with specific software or creating sizing tools for this purpose.
• Experience in the solar energy field.
• Basic knowledge in programming (Python) is an asset.
• Fluency in French.

• Salary in line with your level of experience plus laptop, medical aid allowance, phone allowance, 18 leave days (24 after 1 year of service), 13th month (end of year bonus).
• Flexible working /Home office.
• An international environment: projects in over 100 countries worldwide, colleagues of more than 37 nationalities.