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Spear AI

Spear AI

AI-enabled defense software and maritime sensors

Mechanical Engineer - Maritime

Full-Time
No salary listed
Mid, Senior
Bachelor's
Falmouth, MA, USA
In Person
No H1B Sponsorship
US Top Secret Clearance Required

About the job

Requirements
  • A Bachelor of Science degree in Mechanical Engineering or Naval Architecture and at least 5 years of relevant experience, or at least 10 years of highly relevant experience including at least 5 years in a design role.
  • Familiarity with standard mechanical engineering tools and processes; SolidWorks is preferred but not required if the candidate can transition to it quickly.
  • Extensive hands-on experience prototyping, testing, and refining designs in laboratory and preferably field environments.
  • Ability to communicate in writing and verbally when working in a high-performing development team.
  • Ability to participate physically in at-sea deployment, testing, and recovery operations, including lifting, carrying, and maneuvering on a small boat at sea, communicating verbally, and performing fine manipulations.
  • Willingness to receive and maintain a Secret or Top Secret/SCI security clearance.
Responsibilities
  • Design and document mechanical systems using analysis and engineering judgment, optimize them for various factors, and ensure compliance with requirements.
  • Design systems for operational maritime use, including submerged environments, using an operator-centric viewpoint.
  • Produce mechanical computer-aided design artifacts, including drawings, documentation, and revision control.
  • Select appropriate manufacturing processes, create documentation for technicians or suppliers, and optimize designs for the selected processes.
  • Design parts for additive manufacturing, optimize additive manufacturing approaches, and determine appropriate testing regimens for additive-manufactured parts.
  • Build, test, and troubleshoot design prototypes, remaining heavily involved in building the first prototypes.
  • Develop documentation, procedures, and artifacts to transition manufacturing processes to technicians.
  • Plan, support, and participate in operational testing of prototypes, including bench testing and field testing and going to sea during early prototype testing.
  • Elicit and incorporate feedback from assembly and field technicians throughout the design cycle to improve performance, reliability, and cost effectiveness.
  • Mentor more junior engineers and technicians.
Desired Qualifications
  • Prior maritime design experience.
  • Prior experience with small boats and at-sea operations.
  • Prior experience with unmanned systems (UxS).

About the company

Spear AI builds AI and machine-learning tools for national security and maritime missions. Its Horizon AI Platform labels and manages acoustic data, while Forerunner handles edge AI processing and it also offers field-ready maritime sensors; combined with consulting services on AI strategy and data pipelines, the company provides a deployable hardware-software stack. The solutions help operators interpret passive acoustics to distinguish background sounds from potential threats, improving decision-making and situational awareness in challenging maritime environments. The team’s Navy background and focus on defense use set it apart, aiming to support Navy and allied operations with reliable, integrated tools for detection, data management, and edge computing.

Company Size

1-10

Company Stage

Seed

Total Funding

$2.3M

Headquarters

Washington DC, District of Columbia

Founded

2022

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Simplify's Take

What believers are saying

  • August 2026 BlueTIDE win strengthens sales credibility entering new Navy competitions.
  • July 2025 seed funding from Cortical Ventures and Scare the Bear financed expansion.
  • August 2026 careers page showed active hiring across eight Services roles, signaling growth.

What critics are saying

  • Navy concentration remains severe; one buyer dominates revenue and procurement timing.
  • Defense primes and better-funded maritime startups can outspend Spear AI on integration.
  • If Navy programs shift away from acoustic submarines, Spear AI loses its core thesis.

What makes Spear AI unique

  • Former Navy intelligence and submarine leadership give Spear AI operator credibility.
  • Horizon and edge sensors target passive acoustic workflows, not generic defense AI.
  • BlueTIDE 2026 award validated Counter UxS performance against peer maritime teams.

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Benefits

Unlimited Paid Time Off

Paid Sick Leave

Health Insurance

Dental Insurance

Vision Insurance

11 Paid Holidays

Professional Development Budget

Remote Work Options

Flexible Work Hours

Hybrid Work Options

401(k) Company Match

Relocation Assistance

Employee Referral Bonus

Performance Bonus

Life Insurance

Disability Insurance

Home Office Stipend

Professional Certification Support

Company News

PR Newswire
Sep 1st, 2026
Spear AI earns BlueTIDE Maritime Defense Innovation Award.

Spear AI earns BlueTIDE Maritime Defense Innovation Award. Sep 01, 2026, 05:00 ET NEWPORT, R.I., Sept. 1, 2026 /PRNewswire/ - Spear AI received the BlueTIDE Maritime Defense Innovation Award at Polaris Tech Bridge's BlueTIDE 2026 event, held Thursday, Aug. 27. Spear AI competed in the Counter UxS & Defensive Autonomous Systems technical focus area, which showcased solutions enabling the detection, identification, tracking, and mitigation of unmanned threats across operational environments. The award recognizes Spear AI as the top performer among the companies that demonstrated in the Counter UxS technical category. A group of subject matter experts evaluated participants based on their original applications, test plans, and in-person visits to each booth throughout the day. "We're excited to be recognized by Polaris Tech Bridge and the BlueTIDE evaluation panel. The opportunity to talk to real users of our technology was incredible," said Michael Hunter, CEO and Co-Founder of Spear AI. "This recognition reflects what we've believed from day one. We're solving the right problem, at the right time, for the people who need it most," said John McGunnigle, Executive Chairman and Co-Founder of Spear AI. BlueTIDE 2026, hosted by Polaris Tech Bridge, brought together a select group of finalists across multiple technical focus areas to demonstrate maritime defense technologies for the broader defense community in Newport. About Spear AI Spear AI specializes in artificial intelligence and machine learning solutions tailored for maritime defense and national security operations. Headquartered in Washington, DC, with offices in Falmouth, MA; Groton, CT; and Duluth, MN, Spear AI develops advanced software platforms and integrated maritime sensor systems, and provides engineering support services and subject matter expertise. Spear AI was co-founded in 2021 by Navy veterans and is venture-backed by Cortical Ventures and Scare the Bear Capital. For more information, visit Spear.ai. SOURCE Spear AI

Intelligence360 News
Aug 11th, 2025
Spear AI Secures Seed Funding Round

Spear AI announced the completion of its seed funding round with investments from Scare the Bear Capital and Cortical Ventures. The funding will help expand Spear AI's product portfolio, scale its Horizon platform, and enhance maritime sensor capabilities. The company aims to accelerate delivery of AI solutions to defense and commercial partners, focusing on transforming maritime data into actionable intelligence.

Read Magazine
Jul 28th, 2025
Spear AI Secures Seed Funding from Scare the Bear Capital and Cortical Ventures to Accelerate Maritime AI Solutions and Expand Technical Services

Spear AI secures seed funding from Scare the Bear Capital and Cortical Ventures to accelerate maritime AI solutions and expand technical services.

Tekedia
Jul 27th, 2025
Navy Veterans' Startup Spear AI Raises $2.3M, Wins $6M Navy Contract to Revolutionize Underwater Surveillance with AI

In parallel, Spear AI announced a $2.3 million seed funding round backed by venture capital firms with a focus on artificial intelligence and national defense technologies.

TechStartups
Jul 25th, 2025
Spear AI raises $2.3M to bring AI-powered threat detection to U.S. Navy submarines

Spear AI, an AI startup based in Washington, has secured $2.3 million in its first outside funding round to accelerate its work decoding underwater sounds using artificial intelligence, Reuters reported.