BESS Senior Engineer

3E
3E

Cape Town, South Africa

Posted on Jun 18, 2026

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.