SW Engineeer - HIL Testing

Mach10 Solutions; Berkeley (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Mach10 Solutions is seeking a Software Engineer to build the testing architecture for Battery Management Systems (BMS) validation before commercial release. You will operate where hardware meets software, developing SIL and HIL testing environments to evaluate how control electronics behave under varied conditions without needing a physical battery for every iteration.

Based on-site in California, this contract role may transition to permanent for successful candidates.

Qualifications

• Proven track record in developing or operating HIL/SIL testing environments.
• Software engineering experience creating interfaces or drivers for test instrumentation.
• High level of proficiency in Python programming.
• Ability to thrive in a dynamic, fast‑paced startup setting.

Responsibilities

• Design and assemble SIL/HIL testing platforms with instrumentation, schematics, and wiring.
• Develop device drivers to enable communication between software and lab test equipment for data acquisition and voltage injection.
• Create robust software frameworks to execute automated test sequences.
• Collaborate with firmware and test teams to ensure product performance and safety before major releases.

Skills

HIL/SIL testing

Test instrumentation interfaces

Python programming

Startup environment adaptability

Job description

We are partnering with an expanding energy storage firm focused on innovative battery technology. They are seeking a Software Engineer to develop the testing architecture required to validate their Battery Management Systems (BMS) prior to commercial release.

Operating where hardware meets software, you will develop simulation environments for Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) testing. These systems enable the team to evaluate how control electronics behave under various conditions without requiring a physical battery for every iteration.

Role Overview

We are partnering with an expanding energy storage firm focused on innovative battery technology. They are seeking a Software Engineer to develop the testing architecture required to validate their Battery Management Systems (BMS) prior to commercial release.

Operating where hardware meets software, you will develop simulation environments for Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) testing. These systems enable the team to evaluate how control electronics behave under various conditions without requiring a physical battery for every iteration.

Key Responsibilities

• Design and assemble SIL/HIL testing platforms, encompassing all necessary instrumentation, schematics, and wiring.
• Develop device drivers to facilitate communication between software and laboratory test equipment for data acquisition and voltage injection.
• Create robust software frameworks that empower test engineers to execute automated test sequences efficiently.
• Collaborate with firmware and test teams to ensure high standards of product performance and safety before major releases.

Required Qualifications

• Proven track record in the development or operation of HIL and SIL testing environments.
• Solid software engineering expertise, specifically in creating interfaces or drivers for test instrumentation.
• High level of proficiency in Python programming.
• Ability to thrive and take initiative within a dynamic, fast‑paced startup setting.

Preferred Skills

• Experience in the development of firmware.
• Prior industry experience within the battery tech, EV, or automotive sectors.
• Working knowledge of C programming.
• Familiarity with firmware safety standards such as UL 1998.

Additional Information

• Based on‑site in California; relocation assistance is not available.
• Contract position with a high likelihood of transitioning into a permanent role for successful candidates.
• The hiring process consists of a technical assessment, a Python coding challenge, and an in‑person team interview.

Our Story

From Montana to Nationwide Excellence

Founded in Montana, Mach10 Solutions has rapidly expanded to provide premium fabrication and engineering services across the United States. Our journey began with a simple mission: deliver precision engineering solutions at unprecedented speeds.

Today, we leverage cutting‑edge technology and exceptional talent to provide manufacturing services that consistently exceed expectations. With a focus on quality, speed and innovation, we’ve become the trusted partner for companies seeking competitive advantages through superior fabrication and design.

At Mach10, we don’t just build components – we forge lasting partnerships through reliability, expertise, and our commitment to pushing the boundaries of what’s possible.

Our Services

Precision Fabrication

State‑of‑the‑art manufacturing delivering tight‑tolerance components with uncompromising accuracy.

Design & Drafting

Comprehensive CAD modeling, documentation and DFM optimization to ensure flawless execution.

Field Services

Nationwide on‑site technical support, installation and maintenance from highly trained experts.

Quality Assurance

Rigorous inspection protocols guarantee every component meets or exceeds industry standards.

Project Management

End‑to‑end project coordination with clear communication and on‑time delivery.

Rapid Prototyping

Accelerated development cycles turn concepts into functional prototypes at record speed.

Why Choose Mach10

17+

States Served

64+

Projects Completed

98.2%

Quality Rating

24/7

Technical Support

Recent Projects

Automotive Prototype

Rapid‑turn aluminum prototype trimmed production timeline by 6weeks.

Fully integrated robotic welding cell installed and commissioned on‑site.