---
title: 'Cable Harness Specialist at Endurance Energy'
canonical: 'https://feeny.ai/job/cable-harness-specialist-endurance-energy-seattle-pbp19xb106pc'
type: 'job'
last_seen: '2026-09-10'
---

# Cable Harness Specialist at Endurance Energy

- **Company:** Endurance Energy
- **Location:** Seattle, WA
- **Compensation:** $100k–$160k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-09-02
- **Last confirmed live:** 2026-09-10
- **Apply:** https://jobs.ashbyhq.com/endurance-energy/8383c038-348a-4049-9417-803fa729e58d

## 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, Blue Origin, and Apple. We have completed multiple deep-ocean deployments to subsea volcanoes 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 environmental impact, deployment speed, and cost.

## What you'll be doing

As a Cable Harness Specialist at Endurance Energy, you will partner directly with our Harness Engineer to design and build the marine wiring harnesses that connect our subsea systems. You are expected to own the harness build and test process end to end. You will turn the engineer's termination specification into finished, tested assemblies. You will set up the assembly and test workspace, design and build assembly and test tooling, build the harnesses, pressure-proof and hipot test each unit, record the results in our MES system, and along way contribute excellent design for manufacturing feedback at every stage. You will write the work instructions and build-and-test standards, and train others to follow them. You will hold high standards for workmanship and traceability and push the team toward higher quality and faster execution. This is a critical position. Your craftsmanship, speed, and judgment directly affect our ability to hit hardware milestones on aggressive timelines.

## Key Responsibilities

Partner with the Harness Engineer to design and manufacture high reliability submarine wiring harnesses for subsea deployment and test systems

- Perform precision termination work: cutting, stripping, crimping, splicing, soldering, and overmolding
- Select connectors, wire types, shielding, and routing appropriate for subsea and harsh environments, applying best practices for grounding, EMI mitigation, and signal integrity
- Pressure-proof and hipot test finished harnesses, and record and manage traceable test results
- Set up and maintain the harness assembly and test workspace
- Maintain inventory of terminations, cable, connectors, and associated assembly consumables and hardware
- Write work instructions and build-and-test standards, and train other team members to follow them
- Read and interpret schematics, wiring diagrams, and dimensional layout drawings
- Document builds, issues, and fixes clearly for engineering and QA traceability
- Troubleshoot harness and electrical faults across test systems and deployed hardware
- Contribute to safe electrical practices across the lab and test environments

Required Qualifications

- 5+ years of hands-on experience building and troubleshooting complex wiring harnesses as an electronics technician, electrical technician, or similar role
- Strong practical understanding of connectors, crimping, splicing, shielding, grounding, cable management, and over-molding techniques and equipment
- Strong soldering skills, including fine-pitch and board-level work
- Ability to read and interpret schematics, wiring diagrams, and dimensional layout drawings
- Experience with hipot testing and electrical test equipment such as digital multimeters, milli-ohm meters, and insulation testers
- Experience creating work instructions or build standards, and training others to follow them
- High ownership mindset and ability to operate independently with minimal supervision
- Comfortable in a fast-paced, prototype-driven environment where designs evolve rapidly
- Strong communication skills and ability to work closely with engineers
- Able to lift 50 lbs

## Preferred Qualifications

- Experience building harnesses for marine, subsea, or aerospace systems
- Experience pressure-proofing or pressure-testing subsea assemblies
- Certification in or knowledge of IPC standards for assembly and inspection (for example IPC/WHMA-A-620, IPC J-STD)

Compensation, Benefits, & Perks As a pre-revenue startup, Endurance Energy offers competitive base salaries and generous equity packages for full-time employees. Final base salary will be determined by an array of factors including internal equity, job-related knowledge, skills, and work experience. A key aspect of our compensation philosophy is that value creation should be aligned with rewards. Right now this means equity is a significant portion of every full-time employee's compensation. As the company matures, there will be continued evolution and changes to the total rewards and total compensation package. What will always be true is that if we win, we win together. Equity is granted to every full-time employee as a meaningful piece of ownership. We believe the people building the company should share directly in the value they create. In addition to a competitive base salary and equity, employees will receive all of our other great benefits and perks, including:

- Benefits: Health, Dental, and Vision insurance coverage
- Time Away: Flexible PTO including 12 paid company holidays
- 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
- Dive Certification: Company-sponsored recreational dive certification
- Other Perks: Access to the company boat, free meals and snacks, and the list goes on!

If you’re selected for consideration, a recruiter will be able to discuss in greater detail.

## About Endurance Energy

## Company Overview
- **One-liner**: Develops subsea geothermal power systems that harvest heat from deep-ocean volcanic and hydrothermal environments to generate always-on, zero‑emission baseload electricity.
- **Entity Type**: Private (Series A)
- **Headquarters**: Seattle, Washington, United States
- **Founded**: 2025
- **Founders**: Andrew Redd (former SpaceX engineer on Dragon and Starship programs)

## Core Business
- **Primary Industry**: Renewable energy – subsea geothermal electric power generation.
- **Target Customers**: B2B / B2G – AI infrastructure, hyperscale data centers, industrial electrification, advanced manufacturing, and island/coastal communities seeking reliable, off‑grid clean power.
- **Mission/Purpose**: To unlock the largest untapped energy resource on Earth – subsea volcanic heat – and deliver gigawatt‑scale, carbon‑free baseload power to the grid.

## Products & Services
- **Subsea Geothermal Generators (Core Platform)** – Integrated offshore drilling, subsea infrastructure, power generation equipment, and cable‑based delivery units designed to operate directly on the seafloor.  
- **Adelie (Planned 100 kW System)** – A fully integrated deployable platform combining drilling, generation, and power offtake. Scheduled for deployment at the Juan de Fuca Ridge to power a co‑located subsea compute module and connect to shore via fiber‑optic cable.  
- **Prototype Deployments** – Four completed deep‑sea missions (Juan de Fuca Ridge, Lau Basin near Tonga) at depths up to 3,300 m and temperatures up to 386 °C, including a wellhead prototype and hydrothermal vent data collection.

## Market Standing
- **Valuation / Market Cap**: Not disclosed (private company).
- **Key Metric (Funding)**: $54 M Series A raised in 2026.
- **Notable Investors/Partners**: Founders Fund (lead), Ascend, Construct Capital, Felicis Ventures, First Round Capital, Point72 Ventures, Riot Ventures, Voyager Ventures. Also announced partnership with the Kingdom of Tonga.
- **Growth Signals**:  
  - Headcount grew 466.7 % YoY (16 employees as of mid‑2026).
  - 1,952 LinkedIn followers (+15.4 % monthly).
  - 14+ active open positions across engineering, manufacturing, geology, and recruiting.
  - Talent drawn from SpaceX (5+), Helion, Blue Origin, and other hard‑tech leaders.

## Competitive Advantages
- **First‑of‑Kind Subsea Geothermal Technology** – Only venture‑backed company systematically developing hardware for deep‑ocean hydrothermal power generation.
- **Proven Hardware Survivability** – Four successful deep‑sea deployments at extreme depths (3,300 m) and temperatures (386 °C), demonstrating engineering rigor unmatched by most early‑stage energy startups.
- **Always‑On Baseload Clean Energy** – Unlike solar/wind, subsea geothermal delivers continuous 24/7 output regardless of weather, making it a true baseload renewable source.
- **Founding Team DNA** – Led by SpaceX veterans who bring rapid iterative development, high‑performance engineering culture, and experience in extreme environment systems (Dragon, Starship).

## Strategic Focus
- **Immediate Milestone**: Deploy **Adelie** – the first fully integrated 100 kW subsea geothermal system – at the Juan de Fuca Ridge, co‑located with a subsea compute module.
- **Scaling Path**: Prove modular architecture to enable gigawatt‑scale installations at volcanic hotspots worldwide, with a focus on the Pacific Ring of Fire.
- **Market Alignment**: Capitalize on surging electricity demand from AI, data centers, and industrial electrification by offering a reliable, zero‑emission baseload source.

## Why Work Here
- **Hands‑On Engineering** – All roles are onsite (Seattle, WA and Boulder, CO). Engineers build, deploy, and test hardware in real ocean environments.
- **Fast‑Paced, High‑Impact Culture** – Described as a “high‑performance” team that moves quickly, with four hardware deployments in 15 months.
- **Unique Perks** – Company‑sponsored advanced scuba certification for all employees to build intuition for subsea operations.
- **Open Roles (14+)** – Active hiring in mechanical engineering, fluids/integration, welding, electronics, geology, supply chain, manufacturing, recruiting, and environmental specialist positions.
- **Founding‑Stage Energy** – Small, growing team (16 people) with direct access to leadership; opportunities to define systems from the ground up.

## Sources
1. [Endurance Energy Website](https://www.enduranceenergy.com/)
2. [LinkedIn Company Profile](https://www.linkedin.com/company/enduranceenergy)
3. [DevCuration – Series A Announcement](https://devcuration.com/articles/endurance-energy-raises-54m-series-a-to-build-deep-ocean-geothermal-power-systems)
4. [Jobera Career Page](https://jobera.com/employer/endurance-energy/)
5. [SignalHire Company Profile](https://www.signalhire.com/companies/endurance-energy)

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