CRABI Robotics · 15 hours ago
Marine Engineer (PT)
Medford, MA
Full-time
Onsite
Senior Level
5+ years expCRABI Robotics is seeking a hands-on marine engineer to support the maintenance, reliability, and occasional operation of their LCM-8 testing platform. The role focuses on preventative maintenance, troubleshooting, and repair execution across various marine systems.
ManufacturingMechanical EngineeringRobotics
Responsibilities
Execute preventative maintenance for main propulsion diesels (Detroit Diesel familiarity preferred), gears, and auxiliary systems
Maintain fuel, lube oil, cooling, and raw-water systems; monitor/resolve leaks, overheating, and contamination issues
Maintain and troubleshoot hydraulic systems (pumps, valves, filtration, hoses/fittings, HPUs) and hydraulic deck machinery as installed
Maintain electrical systems (DC distribution, starting/charging, batteries, alternators; shore power/AC panels/generators as installed)
Maintain plumbing systems (freshwater/raw water, heads/sanitation, washdowns) and general marine plumbing systems
Maintain bilge/dewatering systems, alarms, and emergency systems (and fire systems as installed)
Maintain a clean, orderly engine room and service spaces; keep tools/spares organized and inspection-ready
Maintain vessel in compliance with modern USCG rules and regulations
Perform pre-sail checks and post-run inspections; track consumables (fuel/transmission & engine oil/coolant) and operating hours
Stand engineering watch as needed and support safe operations (LOTO discipline, spill prevention, dewatering readiness)
Document defects and corrective actions; coordinate vendors, services, and parts procurement
Recommend practical reliability improvements and upgrades (no unnecessary complexity)
Develop SOPs and documents for startup, running, and troubleshooting procedures for all systems
Serve as a relief helm on a twin-screw vessel when required, including docking/undocking support and close-quarters maneuvering
Coordinate effectively with crew for line handling and safe vessel movements
Qualification
Required
5+ years of hands-on marine engineering, marine diesel, port engineer, or commercial vessel Maintenance Experience
Strong Mechanical Troubleshooting Skills (diesel propulsion and auxiliaries)
Working knowledge of marine electrical (DC/AC), including safe use of meters and basic schematic comprehension
Working knowledge of marine hydraulics (pressure/flow troubleshooting, contamination control, hose/fitting standards)
Comfortable working in engine rooms (heat/noise/confined spaces, ladders, lifting, dirty work)
Ability to write clear maintenance notes and communicate issues directly and professionally
Preferred
Detroit Diesel 71-series familiarity (e.g., 6-71 / 12V-71), including cooling system discipline and injector-related troubleshooting
Twin-screw handling experience on workboats/landing craft/tugs
Generator troubleshooting, shore power integration, battery bank management
Familiarity with USCG/inspection Culture And Strong Safety Habits
USCG Merchant Mariner Credential (MMC) with an engine-room rating QMED (Qualified Member of the Engine Department) or higher
Designated Duty (DDE) endorsement
TWIC Master <100 GRT (nice to have)
Company
CRABI Robotics
CRABI Robotics Engineering and Manufacturing firm developing cleaning machines for marine vessels and removel of biofouling.
2-10 employees
H1B Sponsorship
CRABI Robotics has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Early StageTotal Funding
$0.39M2025-08-11Seed· $0.39M
2024-02-24Pre Seed
Leadership Team
Levi Gershon
Chief Executive Officer
Company data provided by crunchbase