Senior Electrical / Hardware Systems Engineer at FluidLogic – El Segundo, California

At FluidLogic, we're reimagining how humans hydrate. Our Intelligent Hydration systems combine cutting-edge hardware with powerful software to optimize performance, health, and recovery—starting with elite athletes and expanding to everyday adventurers. We believe the future of wellness is precision-driven, personalized, and always evolving—and we're just getting started.

We are seeking a Senior Electrical / Hardware Systems Engineer to lead the design and development of embedded hardware systems from concept through production. This role requires strong system-level thinking and hands-on execution across power, sensing, actuation, and communication systems. You will help define hardware architecture, design critical circuits, lead bring-up and debugging, and support scaling products into manufacturing.

This is a role for an engineer who enjoys owning complex systems end-to-end, thrives in fast-moving environments, and is comfortable working across disciplines to bring real products to life.

The ideal candidate is comfortable working across power, digital, and mixed-signal domains, and can design, debug, and scale complex embedded systems in a highly collaborative, cross-functional environment.

System Architecture & Hardware Development

• Define and drive system-level hardware architecture, including partitioning across core subsystems and expansion modules
• Design embedded hardware systems including schematics, component selection, and PCB layout guidance
• Develop robust power architectures including battery systems, switch-mode power supplies (buck/boost), sequencing, and protection
• Design and integrate motor drivers and actuator systems, including power delivery and control considerations
• Contribute to development of scalable platform architectures supporting multiple product variants

Hardware Bring-Up & Debugging

• Lead hardware bring-up, debugging, and validation of prototypes and production hardware
• Perform root-cause analysis of complex hardware issues across power, sensing, and communication systems
• Identify and resolve noise coupling issues across mixed-signal systems (power, RF, sensing, and digital domains)
• Drive EMI/EMC and ESD design and debugging, including grounding strategy, return path control, shielding, and interface protection

System Integration

• Collaborate closely with firmware, mechanical, and product teams to ensure cohesive system integration
• Support integration of microcontrollers, sensors, wireless modules, and communication interfaces
• Help identify and mitigate system-level risks across electrical, mechanical, and firmware boundaries

Manufacturing & Productization

• Support transition from prototype to production, including DFM/DFT and production readiness
• Help define manufacturing test strategies and validation processes
• Evaluate engineering tradeoffs across cost, performance, reliability, and manufacturability

• Develop a deep understanding of the system architecture, design constraints, and product requirements
• Take ownership of key hardware subsystems, driving design improvements and resolving critical technical issues
• Lead hardware bring-up, debugging, and validation of new prototypes and iterations
• Identify and reduce system-level risks related to power integrity, EMI, signal integrity, and system integration
• Contribute to improving hardware reliability, manufacturability, and scalability as the product moves toward production
• Communicate clearly across engineering disciplines and build strong working relationships with firmware, mechanical, and manufacturing teams

• Bachelor’s or Master’s degree in Electrical Engineering or related field
• 7+ years of experience in hardware design and embedded system development
• Demonstrated experience bringing hardware products from concept through production
• Strong experience with mixed-signal embedded systems
• Experience designing switch-mode power supplies, battery-powered systems, and power distribution
• Experience with motor drivers, actuators, or other electromechanical systems
• Strong debugging skills across hardware and system-level issues
• Proven ability to diagnose and resolve EMI/EMC and ESD issues in complex systems
• Solid understanding of noise coupling mechanisms, return path control, grounding strategies, and protection design
• Experience working in cross-functional teams including firmware, mechanical, and manufacturing

Preferred

• Experience with portable or battery-powered systems
• Experience with wireless systems (BLE, NFC, or similar)
• Familiarity with manufacturing test development and production scaling
• Experience designing platform architectures across multiple product variants
• Experience working in consumer electronics or connected device environments

Tools & Technologies

• ECAD tools such as Altium Designer (or similar)
• Lab equipment including oscilloscopes, logic analyzers, spectrum analyzers, and power measurement tools
• Experience debugging embedded systems using MCUs and common communication interfaces (SPI, I2C, UART, etc.)

This is a full-time position based out of our El Segundo office, following a hybrid schedule. While some remote flexibility is available, we place a strong emphasis on onsite presence for collaboration, team engagement, and hands-on work.

At FluidLogic, we’re building something exciting—and we want you to be part of it. As a fast-paced startup, we value agility, creativity, and collaboration. Here’s what you can expect when you join our team:

• Health & Wellness
  We offer comprehensive medical, dental, and vision insurance to keep you and your loved ones covered.
• 401(k) Retirement Plan
  Prepare for the future with our 401(k) plan. While we don’t offer a company match just yet, we’re committed to growing together.
• Unlimited PTO
  We trust our team to take time off responsibly. Whether it’s for rest, travel, or personal needs, you’re empowered to recharge when needed.
• Flexible Work Schedule
  We offer flexibility in your day-to-day, with a strong emphasis on in-person collaboration. We believe the best ideas happen when we’re together—sharing, building, and solving problems side by side.
• Company-Provided Equipment
  You’ll receive a laptop and any essential tools to help you do your best work from day one.
• Snacks & Refreshments
  Stay fueled with a variety of onsite snacks and beverages to keep your energy up throughout the day.
• Startup Energy
  Be part of a fast-moving, hands-on environment where your contributions make a real impact. We’re growing quickly, and every team member plays a key role in shaping our future.
• Observed Holidays
  We observe standard U.S. holidays so you can enjoy time with family and friends.