Controls Software Engineer

LG Energy Solution Michigan, Inc.•Westborough, MA

12h•$97,000 - $135,000•Hybrid

About The Position

As a Controls Software Engineer, you will develop and maintain control applications for LGES Vertech's AEROS EMS and Power Plant Controller platforms. Working closely with a principal engineer and a cross-functional team, you will apply power system fundamentals and software development skills to solve real-world energy storage challenges. You will contribute to modeling, implementation, and testing, with mentorship as you build expertise in our systems and development practices. We value sound reasoning, curiosity, and a willingness to learn.

Requirements

Solid power system fundamentals, gained through coursework or equivalent learning, including three-phase AC systems, real and reactive power, and voltage and frequency behavior.
Understanding of feedback control fundamentals and experience tuning a PI or PID controller through coursework, simulation, lab work, or professional experience.
Hands-on programming experience in at least one language, gained through coursework, research, personal projects, or professional work.
Ability to record, plot, and interpret engineering data to evaluate system behavior and troubleshoot problems.
Curiosity, initiative, and motivation to learn new controls concepts, software practices, and tools.
A methodical approach to problem-solving, including testing assumptions and using evidence to diagnose issues.
Clear verbal and written communication, a collaborative mindset, and a willingness to ask questions and learn from feedback.
Care and accountability in engineering work, including checking results, documenting decisions, and following through.

Nice To Haves

Experience developing software in C++, including object-oriented programming.
Experience using MATLAB/Simulink to model physical systems, develop control algorithms, or analyze results.
Experience developing and testing real-time controllers.
Familiarity with Linux, version control, and repeatable software testing.
Experience using AI-assisted coding or engineering tools, with an emphasis on critically evaluating and testing generated outputs.
Exposure to PSCAD or similar tools for power system simulation.
Familiarity with Modbus and DNP3 communication protocols.
Understanding of battery energy storage systems and the operating principles of grid-connected inverters, power electronics, or transformers.

Responsibilities

Design and implement control algorithms for commercial and grid-scale battery energy storage systems.
Develop, integrate, and maintain real-time control software in a Linux environment, using C++ and model-based code generation as appropriate.
Use AI-assisted tools to support development, analysis, documentation, and testing, while reviewing generated outputs, protecting confidential information, and verifying engineering correctness.
Develop simulation models to analyze system behavior and evaluate control performance against design requirements.
Develop and execute controls software tests in simulation and on lab or project-site systems to verify performance and reliability. Hands-on electrical work is not part of this role.
Investigate system performance issues, identify root causes, and support customer and project needs.
Maintain clear documentation of control designs, implementation decisions, test procedures, and results.
Collaborate with software quality assurance (SQA) to define verification methods and build repeatable tests.
Work with program managers, project managers, and project engineers to deliver control functionality that meets project requirements.