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Battery Testing Jobs in Seattle, WA (NOW HIRING)

Endurance Energy

Senior Electrical Engineer

Seattle, WA · On-site

$122K - $159K/yr

... validation testing, design iteration, and field performance analysis. You will work cross ... Integrate battery management systems and design low-voltage power distribution for control ...

Terex

Design Engineer II/Sr

Redmond, WA · On-site +1

$91K - $140K/yr

Perform design, analysis, and testing of electrical/mechanical components along with system ... Experience with battery qualification and machine integration involving advanced battery ...

Terex Corporation

Design Engineer II/Sr

Redmond, WA · On-site

$91K - $140K/yr

Perform design, analysis, and testing of electrical/mechanical components along with system ... Experience with battery qualification and machine integration involving advanced battery ...

MAGNIX USA INC

Power Electronics Engineer

Everett, WA · On-site

$120K - $165K/yr

Develop control loops for battery charging, rack-bus voltage regulation, and grid-interactive or ... This job operates in a manufacturing and testing environment. While performing the duties of this ...

Amazon

Cell Test Engineer, Amazon Leo

Redmond, WA

Perform battery qualification and characterization testing across a broad range of methods and specialized equipment, including but not limited to vacuum and helium bomb leak testing, ultra-high ...

Amazon

Cell Test Engineer, Amazon Leo

Redmond, WA

Perform battery qualification and characterization testing across a broad range of methods and specialized equipment, including but not limited to vacuum and helium bomb leak testing, ultra-high ...

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All JobsBattery Testing JobsBattery Testing Jobs in Seattle, WA

Battery Testing information

See Seattle, WA salary details

$27

$53

$68

How much do battery testing jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for battery testing in Seattle, WA is $53.04, according to ZipRecruiter salary data. Most workers in this role earn between $45.96 and $61.54 per hour, depending on experience, location, and employer.

What is a battery testing?

A Battery Testing job involves evaluating the performance, safety, and durability of batteries used in various applications, such as electric vehicles, consumer electronics, and industrial systems. Technicians and engineers in this role conduct tests to measure capacity, charge/discharge cycles, thermal stability, and overall efficiency. They use specialized equipment to analyze battery behavior under different conditions and ensure compliance with industry standards. Battery testing helps identify defects, improve product reliability, and support research for next-generation energy storage solutions.

What does a typical day look like for someone in a battery testing role?

A typical day for a Battery Testing professional involves setting up and running tests on various battery types, monitoring performance data, and identifying any issues or deviations from expected results. You'll be responsible for maintaining detailed records of test outcomes, calibrating equipment, and collaborating closely with engineers and quality assurance teams to report findings and propose improvements. The work is usually hands-on in a lab or production environment, often balancing both routine quality checks and special project testing. This role offers opportunities to learn about new battery technologies and can lead to career advancement in broader engineering or quality assurance roles.

What are the key skills and qualifications needed to thrive in the battery testing position, and why are they important?

To thrive in Battery Testing, you need strong understanding of battery technologies, electrical testing procedures, and safety protocols, often supported by a degree in electrical engineering or a related field. Familiarity with testing instruments such as multimeters, impedance analyzers, battery cyclers, and data logging software is typically required, along with relevant safety certifications. Attention to detail, problem-solving abilities, and effective communication are valuable soft skills that set candidates apart. These skills are crucial to ensure accurate testing, maintain workplace safety, and facilitate effective collaboration with engineering and quality assurance teams.

What does a battery testing technician do?

A battery testing technician inspects, tests, and evaluates batteries to ensure they meet performance and safety standards. They use specialized equipment to measure voltage, capacity, and internal resistance, often working in laboratory or manufacturing environments. Certification and knowledge of electrical systems are typically required for this role.
What are popular job titles related to Battery Testing jobs in Seattle, WA? For Battery Testing jobs in Seattle, WA, the most frequently searched job titles are:
What job categories do people searching Battery Testing jobs in Seattle, WA look for? The top searched job categories for Battery Testing jobs in Seattle, WA are:
Battery Testing jobs near you
Infographic showing various Battery Testing job openings in Seattle, WA as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution, with an average salary of $110,324 per year, or $53 per hour.

Senior Electrical Engineer

Endurance Energy

Seattle, WA • On-site

$122K - $159K/yr

Full-time

Medical, Dental, Vision

Re-posted 19 days ago

Job description

About Endurance
Endurance is building the world's first modular subsea geothermal power plants, converting vast thermal resources under the ocean into gigawatts of baseload power. Backed by Founders Fund, Felicis, First Round Capital, and Point72 Ventures, our founding team includes veterans from SpaceX, Helion, and Robinhood. We have completed multiple deep-ocean deployments and are launching a long-term demonstration project this fall. By leveraging modular design, manufacturing scale, efficient drilling, and latent cooling on the seafloor, we are pioneering a new category of energy that outperforms traditional sources on both environmental impact and cost.
What you'll be doing
As a Senior Electrical Engineer, you will architect, design, and validate the low-voltage control and instrumentation systems that enable subsea energy generation. You will be responsible for the full embedded electrical stack including microcontroller and embedded Linux platforms, analog sensor interfaces, battery management system integration, communication systems, wiring harness design, and fault-tolerant system architecture.
You will blend broad hands-on hardware experience with the discipline to build for extreme environments. This is not a simulation-only role. We are looking for someone who has personally selected components, designed analog front ends, brought up embedded boards in the lab, debugged intermittent failures, and driven designs through revision cycles into production. You understand the difference between a board that passes validation and a system running unattended in a harsh subsea environment.
You will own the full hardware lifecycle from architecture and schematic capture through layout review, fabrication, bring-up, validation testing, design iteration, and field performance analysis. You will work cross-functionally with mechanical, controls, power/subsea systems, and offshore operations teams to ensure our control systems are robust, fault-tolerant, and built to last.
Key Responsibilities
  • Architect and design low-voltage control and instrumentation systems from sensor interfaces through communication links and system supervisory logic
  • Select and implement microcontrollers and embedded Linux processors appropriate for subsea control applications
  • Design analog sensor front ends for pressure, temperature, flow, and shaft speed including signal conditioning, filtering, and ADC interfacing
  • Integrate battery management systems and design low-voltage power distribution for control electronics
  • Architect and implement communication systems including Ethernet, fiber optic, and serial protocols for subsea-to-surface data links
  • Produce electrical harness drawings and coordinate with manufacturing of cable assemblies, connectors, and harness fabrication
  • Define and implement fault-tolerant design strategies including redundancy, watchdog supervision, fault detection, and graceful degradation for non-retrievable deployments
  • Develop fault trees and failure containment strategies to prevent single-point failures from taking down critical monitoring or control functions
  • Lead board bring-up, lab validation, and system-level testing including sensor accuracy characterization, communication link validation, and fault injection
  • Drive root cause investigations for sensor dropouts, communication failures, firmware faults, connector failures, and field anomalies
  • Own the full system lifecycle including fabrication release, vendor and CM coordination, revision control, and production readiness
  • Integrate control hardware cleanly with power systems, firmware, mechanical enclosures, and offshore operations
  • Establish electrical design standards, documentation discipline, and reliability practices appropriate for subsea infrastructure

Qualifications
  • 6+ years of experience designing and shipping embedded or mixed-signal hardware in demanding or high-reliability environments
  • Generalist hardware instincts - comfortable across microcontrollers, analog signal chains, low-voltage power, and digital communications
  • Demonstrated experience architecting complete embedded systems, not just individual boards or subcircuits
  • Hands-on experience designing analog sensor front ends including signal conditioning, filtering, and precision measurement
  • Working knowledge of communication protocols and physical layers including Ethernet, fiber optic, RS-485, CAN, and SPI/I2C
  • Experience with battery management systems or low-voltage DC power distribution for electronics
  • Ability to produce harness drawings and work directly with CM or contract manufacturers on cable and connector selection
  • Hands-on lab experience bringing up embedded hardware, debugging with oscilloscopes and analyzers, and iterating through revision cycles
  • Experience designing for harsh environments - thermal, mechanical, or corrosion constraints - with appropriate material and connector selection
  • Ability to think from first principles and make sound engineering tradeoffs under schedule pressure
  • High ownership mentality and comfort being the single-threaded owner of a critical embedded system
  • Strong cross-disciplinary communication skills and ability to collaborate with mechanical, power systems, subsea, and offshore operations teams
  • Entrepreneurial mindset and willingness to operate in ambiguity while building a new class of energy infrastructure

Preferred Experience
  • Prior subsea, marine, or offshore hardware experience
  • Background in aerospace, robotics, or medical device hardware development

Benefits & Perks
  • Global Fieldwork: Travel to fascinating deployment sites along oceanic ridges in locations like the Pacific Northwest, Hawaii, Iceland, Japan, New Zealand, and the Azores
  • Hands-on Experience: Participate in sea trials and deployment operations in partnership with leading oceanographic institutions
  • Cutting-edge Development: Work with technology that spans high-power electronics, marine systems, and clean energy
  • Impactful Work: Help solve one of the world's most pressing challenges
  • Competitive Compensation: Comprehensive salary (185K-250K) and equity packages
  • Benefits: Vision, Dental, Health insurance coverage
  • Dive Certification: Company-sponsored recreational dive certification

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