Associate Controls Engineer – Electrical Systems Control

Mainspring Energy

. Help integrate inverters, batteries, brake resistors, and generators on a common DC bus .

Posted 10/28/2026full-timeMenlo Park • California • United StatesJuniorMid-Level💰 $104,187 - $122,573 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and implementing control algorithms for DC bus systems, with a strong foundation in C++17 programming and automation testing. Collaborates effectively across multi-disciplinary engineering teams while applying analytical skills for system data refinement and failure analysis.

Highest-signal resume keywords

Control Algorithm DevelopmentC++17 ProgrammingAutomation TestingFailure AnalysisCollaboration Across Engineering Teams

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Control Systems DesignAutomation AlgorithmsContinuous-Integration TestingSimulation TestingSystem Data AnalysisDebugging SensorsRisk MitigationValidation TechniquesTest Plans DevelopmentTraceability Matrices

Soft Skills

Strong Communication SkillsDesire to LearnActive Collaboration

Industry Keywords

DC Bus IntegrationGrid-Tie InvertersPower SystemsElectrical EngineeringMechanical EngineeringSoftware EngineeringMulti-Disciplinary Engineering

Tech Stack

Tools & technologies

C++

About the role

Key responsibilities & impact

Help integrate inverters, batteries, brake resistors, and generators on a common DC bus
Design, implement, and tune control algorithms for the DC bus, batteries, and grid-tie inverters in simulation and on hardware
Implement algorithms and continuous-integration tests (MIL, SIL, PIL) in C++17
Develop automation, diagnostics, and fail-safes for an integrated platform
Analyze system data and refine control strategies
Develop and automate test plans, test cases, and traceability matrices
Conduct failure analysis, risk mitigation, and validation
Debug sensors, actuators, and subsystems, including noise, disturbances, and calibration
Support fleet generator operation, manufacturing testing, and reliability efforts
Collaborate with power electronics, mechanical, thermal, firmware, and test teams
Receive mentorship, code reviews, and hands-on guidance from senior staff
Build simulation tests and support hardware validation of grid-tie inverter control algorithms, progressing toward ownership of critical control subsystems

Requirements

What you’ll need

BS or MS in electrical, mechanical, or software engineering with a specialization in control systems or power systems
0–2 years of relevant work experience
Experience designing, implementing, and testing controls and automation algorithms in software
Strong desire to learn from experienced mentors and work across multi-disciplinary engineering domains
Strong communication skills
Enthusiasm for active collaboration across diverse hardware and software engineering teams

Benefits

Comp & perks

Pre-IPO company equity through Restricted Stock Units (RSUs)
Benefits
Hybrid work arrangement (onsite + remote)