Senior Reaction Controls Engineer

Mainspring Energy; Menlo Park (CA); Hybrid; USD 140,000 - 210,000; Full time

Benefits offered by this job

Restricted Stock Units (RSUs)

Benefits

Job summary

Mainspring Energy, Inc. is seeking a Senior Controls Engineer to optimize reaction control using physics-based models and modern algorithms. You will work on thermodynamic cycles with a focus on reliability, power, and efficiency, collaborating across a multidisciplinary team.

The role requires strong engine control and thermodynamics intuition, with experience in MIL/SIL/PIL testing, and a track record of implementing robust control strategies for dynamic systems.

Qualifications

• Driven and self-directed enthusiastic contributor.
• Excellent communicator with collaboration across multidisciplinary teams.
• Multiple years of experience designing, implementing, and testing algorithms in thermodynamic machines; engines a plus.

Responsibilities

• Implement models, algorithms, and MIL/SIL/PIL tests in C++.
• Develop fuel, air, compression ratio, and cooling control strategies.
• Design, run, and analyze experiments using Python on generators.
• Collaborate with other controls engineers on designs and architectures.
• Debug sensors, actuators, and subsystems; communicate algorithms via block diagrams or code.
• Analyze complex thermodynamic-mechatronic systems with experimental data and models.
• Support reliability and manufacturing testing of systems.
• Analyze data to inform requirements and design decisions.
• Support fleet generator operation to enhance reliability and performance.

Skills

Team collaboration

Communication

Self-motivated

Thermodynamics knowledge

Education

BS + 5 years or MS + 3 years or Ph.D. in mechanical engineering

Tools

C++

Python

Job description

Do you love thermodynamics and dynamic system control? Have you thought about thermodynamic cycles as both continuous and discrete dynamic systems? As other industries convert their thermodynamic machines to electromagnetic machines and electrify their platforms, would you like to help generate that clean electricity?

Linear generators are a new platform that take advantage of mechanically unconstrained piston motion to cleanly and efficiently oxidize a variety of environmentally friendly fuels with disparate properties (like biogas, hydrogen, and ammonia). The linear generator reaction is close to an ideal Otto cycle, so knowledge and intuition of engine control, thermodynamics, and reaction kinetics are applicable here.

Mainspring has a high-impact opportunity for a Senior Controls Engineer on our reaction control team to help optimize the system performance by incorporating physics-based models with modern control algorithms to improve reliability, prolong service intervals, and increase power and efficiency.

Job Overview

Do you love thermodynamics and dynamic system control? Have you thought about thermodynamic cycles as both continuous and discrete dynamic systems? As other industries convert their thermodynamic machines to electromagnetic machines and electrify their platforms, would you like to help generate that clean electricity?

Linear generators are a new platform that take advantage of mechanically unconstrained piston motion to cleanly and efficiently oxidize a variety of environmentally friendly fuels with disparate properties (like biogas, hydrogen, and ammonia). The linear generator reaction is close to an ideal Otto cycle, so knowledge and intuition of engine control, thermodynamics, and reaction kinetics are applicable here.

Mainspring has a high-impact opportunity for a Senior Controls Engineer on our reaction control team to help optimize the system performance by incorporating physics-based models with modern control algorithms to improve reliability, prolong service intervals, and increase power and efficiency.

Responsibilities

• Implement models, algorithms, and continuous-integration (MIL, SIL, PIL) tests in C++
• Develop novel fuel, air, compression ratio, and cooling automation and control strategies to improve performance, reliability, and expand the capabilities of the generator to address customer needs
• Design, execute, and analyze experiments using Python on virtual or real generators to realize the impact of your work on real generators
• Collaborate with other controls engineers on designs and architectures
• Debug sensors, actuators, and subsystems for noise and disturbances and assist in calibration, verification, and validation. Communicate algorithms with block-diagrams, pseudo-code, code, etc.
• Analyze complex thermodynamic-mechatronic systems with experimental data and create representative plant models
• Support reliability and manufacturing testing of systems under control
• Analyze data to assess performance capabilities and inform requirements and design decisions
• Support fleet generator operation to enhance reliability and performance

Qualifications

• Driven and self-directed enthusiastic contributor
• Excellent communicator with demonstrated collaboration across multidisciplinary teams
• Multiple years of experience designing, implementing, and testing algorithms in thermodynamic machines - experience with engines is a plus
• BS + 5 years relevant experience, MS + 3 years, or Ph.D. in mechanical engineering or related degree

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

This is a hybrid position (onsite + remote) at our Menlo Park HQ. It will require you to be onsite as required to perform testing, troubleshooting, manufacturing support, etc. The salary will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee.

• Along with the base salary, Mainspring offers pre-IPO company equity through Restricted Stock Units (RSUs) + benefits.