Control Engineer –Battery Energy Storage Systems (BESS)

Larsen & Toubro; Bengaluru; On-site; INR 1,400,000 - 2,400,000; Full time

Job summary

Larsen & Toubro is seeking a Control Engineer for Battery Energy Storage Systems (BESS) in Bengaluru, India. The role focuses on end-to-end control algorithm development across concept, design, validation, and deployment for utility-scale solutions.

Required 5–10 years in control engineering for power electronics or energy storage, with strong MATLAB/Simulink and embedded control expertise. Collaboration with PCS, BMS, EMS, and grid-compliance teams is essential.

Qualifications

• Experience designing control algorithms for power electronics or energy storage systems.
• Proficient in MATLAB/Simulink modeling and simulation.
• Experience with SIL/HIL testing and real-time simulators is a plus.

Responsibilities

• Design, develop, and maintain control algorithms for BESS covering power management and scheduling.
• Lead model-based development and auto-code workflows where applicable.
• Perform SIL/HIL and system-level validation under normal and grid-disturbance conditions.
• Collaborate with PCS, BMS, EMS, and grid-compliance teams for seamless integration.
• Produce high-quality design documents and participate in design reviews and qualification activities.

Skills

Control theory

MATLAB/Simulink

Real-time/embedded control

Grid-connected systems

CAN/Modbus protocols

Education

Bachelors or Masters in Electrical Engineering/Control Systems/Power Electronics

Tools

MATLAB

Simulink

CAN

Modbus

Job description

Job Title: Control Engineer –Battery Energy Storage Systems (BESS)

Location: Bengaluru, India

Experience: 5–10 Years

Business Unit: PES – EPS

Segment: Utility-Scale & Commercial & Industrial (C&I)

Role Summary

The BESS Electrical Design Engineer is responsible for the design Control Engineering for BESS Product Engineering team for Utility-scale and C&I energy storage solutions. this role focuses on end-to-end ownership of control algorithms across the full product lifecycle—from concept and system design through validation, certification, and global deployment.

Key Responsibilities

Control System Design & Development

• Design, develop, and maintain control algorithms for Battery Energy Storage Systems, covering:
  • Power and energy management
  • Charge/discharge scheduling
  • Voltage, frequency, and reactive power control
  • Understand BMS design and step
  • Control Interface with EMS, BESS controller, PPS and other required Equipment’s.
• Develop control strategies for utility-scale and C&I applications, including:
  • Frequency regulation and grid services
  • Renewable energy integration
  • Peak shaving and energy arbitrage
  • Backup power and microgrid operation
• Implement control functions on real-time controllers and industrial-grade embedded platforms.

Data Analysis, Simulation & Validation

• Develop detailed control models using MATLAB/Simulink and equivalent tools.
• Support model-based development and auto-code generation workflows where applicable.
• Lead and execute SIL, HIL, and system-level validation to ensure robust control performance under:
  • Normal operating conditions
  • Grid disturbances and abnormal scenarios
  • Fault and recovery conditions
• Analyse performance metrics and continuously improve stability, accuracy, and efficiency of control algorithms.

System Integration & Cross-Functional Collaboration

• Work closely with PCS (Power Conversion System), BMS, EMS, system architecture, and grid compliance teams to ensure seamless integration.
• Ensure coherent control behaviour across:
  • Inverter control layers
  • Battery and protection constraints
  • Site-level and fleet-level EMS commands
• Support Factory Acceptance Tests (FAT), Site Acceptance Tests (SAT), and commissioning activities globally as needed.

Standards, Compliance & Product Lifecycle

• Design controls compliant with global grid codes and utility interconnection requirements.
• Support certification and product qualification activities for different regions.
• Contribute to product roadmaps, reuse strategies, and platform standardization initiatives.
• Create and maintain high-quality technical documentation, control specifications, and design review artefacts in line with OEM processes.
• Participate in design reviews, failure analyses, and continuous improvement initiatives across product generations.

Required Skills & Experience

Technical Expertise

• 5–10 years of experience in control engineering for power electronics, grid-connected systems, or energy storage products.
• Strong proficiency in:
  • Control system theory and practical implementation
  • MATLAB/Simulink modeling and simulation
  • Real-time or embedded control systems
• Solid understanding of:
  • Inverter-based power conversion systems
  • Battery operational limits and interaction with control layers
  • Coordinated control between BMS, PCS, and EMS
• Experience with SIL / HIL testing and real-time simulators.
• Familiarity with industrial communication protocols (e.g., CAN, Modbus).

Grid & System Knowledge

• Hands-on experience with utility and C&I grid-connected systems.
• Strong understanding of:
  • Voltage and frequency regulation
  • Grid-following and grid-supportive control strategies
  • Islanding, reconnection, and abnormal grid behavior
• Exposure to international standards and grid codes relevant to stationary BESS.

Preferred Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Control Systems, Power Electronics, or related field.
• Experience working within a large OEM or global product organization.
• Knowledge of functional safety, redundancy, and fault-tolerant control concepts.
• Exposure to multi-site development, global product deployment, or fleet-scale energy systems.
• Experience supporting long-life infrastructure products with high reliability and availability requirements.

Professional & Behavioral Competencies

• Strong system-level thinking and analytical skills.
• Ability to work within structured engineering processes and quality systems.
• Effective communication with cross-cultural and cross-functional teams.
• Ownership mindset with focus on reliability, safety, and long-term product performance.