Full-Time

Hardware Design Engineer II/Senior

Accessories

Posted on 7/17/2025

Neptune Medical

Neptune Medical

1-10 employees

At-home fertility diagnostics and non-invasive device

Compensation Overview

$125k - $170k/yr

+ Equity + Benefits + 401(K) with matching

Burlingame, CA, USA

In Person

Category
Mechanical Engineering (4)
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Required Skills
Risk Management
Product Design
Requirements
  • B.S. or M.S. in Mechanical or Fluidics Engineering or related field.
  • 2+ years work experience as a hand-on designer in medical devices, fluidics, draping, packaging, sterilization or related disposable devices.
  • Demonstrated experience working with cross functional teams.
  • Experience in design control, risk management, demonstrating an ability to assess design failures and mitigate them through novel approaches.
  • Demonstrated ability to be successful in supporting multiple sub-projects concurrently, juggling multiple priorities based on criticality of the project deliverables.
  • An inventive aptitude balanced with discipline and detail-orientation.
Responsibilities
  • Design and architect fluidics line sets and drapes for the capital robotic system while considering workflow, performance, and cost for each element.
  • Research and select appropriate materials to meet the needs of the subsystems.
  • Engage in cross functional collaboration with Industrial Design, Clinical, Systems, and Hardware Engineering teams to generate elegant solutions to clinician needs.
  • Design and own packaging, labeling, sterilization for the fluidics and drapes (as required)
  • Select appropriate suppliers who can meet the needs of the fluidics and drape manufacturing and deliver to the specifications provided.
  • Produce drawings and other design outputs to communicate design specifications to vendors, including tooling as required for test or production.
  • Use DFM principles and challenge medical device packaging norms to reduce cost and simplify assembly.
  • Define final inspection/test criteria for deliverable items.
  • Own definition of requirements, test method development, and design verification of the above including design verification & sterilization.
  • Lead technical design reviews. Present design inputs, design outputs and open issues.
  • Work closely with colleagues to brainstorm, collaborate, and share knowledge, demonstrating a team forward mentality with honest work ethic.
  • Generate novel ideas that strengthen the company’s intellectual property position in the fields of endoscopic robotics and minimally invasive surgery.
  • Work effectively within the confines of a regulated, quality-system driven, FDA-monitored medical device environment. Supporting and performing necessary testing and report generation for regulatory and clinical submissions.
Desired Qualifications
  • Experience with medical device design and manufacturing.
  • Great understanding of design controls and what is needed to get a product into patients.
  • Experience with sterilization and sterilization validation.
  • Experience with risk analysis, risk mitigation and dFMEA practices.
  • Demonstrated ability to generate original ideas by history of patents and IP.
  • Developed products from invention to market release.
  • Experience in a start-up environment.
  • Experience creating and managing schedules, budgets, and plans.

Neptune Medical develops devices and tests to address male infertility. Its two main products are Pro-Test, an at-home diagnostic kit that lets individuals test fertility parameters from home, and Neptune, a non-invasive device designed to improve sperm quality. Pro-Test provides a convenient way to assess fertility without clinic visits, while Neptune uses a proprietary, non-invasive method to enhance key sperm metrics and is intended for home use alongside clinical fertility treatment. The company serves both clinics (B2B) and individual consumers (B2C) and markets its products to help diagnose and treat male infertility, a factor in about half of all infertility cases. Neptune Medical differentiates itself by offering integrated, consumer-accessible diagnostics and treatment tools, backed by grant funding and participation in precision medicine programs, aiming to make diagnosis and treatment more private, accessible, and effective.

Company Size

1-10

Company Stage

Series D

Total Funding

$97M

Headquarters

Burlingame, California

Founded

2016

Simplify Jobs

Simplify's Take

What believers are saying

  • Varicocele embolization boosts sperm parameters, complementing Neptune's enhancement device.
  • E-cigarette harm awareness drives Pro-Test demand for lifestyle-impacted diagnostics.
  • Innovate UK and Horizon 2020 grants validate clinical innovation for market entry.

What critics are saying

  • Varicocele embolization by University Radiology eliminates Neptune device need in 12-24 months.
  • RSC New Jersey clinics integrate evaluations, cutting Pro-Test demand in 6-18 months.
  • Clomiphene citrate adoption by urologists cannibalizes device market in 12-24 months.

What makes Neptune Medical unique

  • Pro-Test delivers at-home male fertility diagnostics for convenient sperm analysis.
  • Neptune device non-invasively enhances sperm quality via patented home-use technology.
  • Targets male infertility gap, serving B2B clinics and B2C consumers since 2018.

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Benefits

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