Top Mechanical Design Engineer Jobs in NYC, NY

Leads full-lifecycle mechanical design for defense systems, including 3D modeling, assemblies, drawings, engineering analysis, material and process selection, prototyping, testing, and production support. Collaborates with electrical, software, project management, and manufacturing teams; documents designs and test results; and drives optimization, cost reduction, and process improvements. Requires mechanical engineering expertise, CAD proficiency, GD&T knowledge, and the ability to obtain and maintain a security clearance.

Design and release precision mechanical hardware, housings, assemblies, tooling, fixtures, and alignment systems for LiDAR sensors. Create manufacturing-ready drawings using GD&T, perform tolerance analyses, manage engineering changes and BOMs, support optical assembly, collaborate with suppliers and cross-functional engineers, and iterate prototypes toward production.

Leads mechanical product development, conceptual and detailed design, engineering analysis, prototyping, design reviews, and new product introduction. Collaborates with industrial designers, customers, manufacturing, sales, and engineering teams to resolve technical issues and ensure products meet performance, quality, regulatory, and manufacturability requirements. Performs FEA on plastic and metal designs and supports APQP, DFMEA, PFMEA, testing, documentation, and product release.

Designs basic to advanced HVAC and mechanical systems, including calculations, layouts, drawings, schematics, equipment evaluations, and shop drawing reviews. Coordinates project scope, schedules, client meetings, quality, and delivery, while supporting business development and training. Requires proficiency with Bluebeam Revu, CAD, Revit, and HVAC design software, plus 3–8 years of relevant experience depending on level.

Designs and integrates automated manufacturing equipment, robotic systems, tooling, material-handling solutions, and electromechanical systems. Responsibilities include 3D CAD modeling, mechanical analysis, equipment sizing, prototype testing, troubleshooting, installation, commissioning, safety compliance, and supplier coordination. The role supports design reviews, risk assessments, FAT/SAT, and production startups while managing quality, cost, and timeline objectives.

Develop thermal-hydraulic models for scientific apparatus using ASME B31.3-2022 for installation at a research reactor. Perform steady-state and transient temperature modeling, work independently, and coordinate with EPC contractors and vendors on costs and budgets. The role is remote, part-time, and temporary, with at least four required site visits to State College, Pennsylvania. U.S. citizenship, background screening, drug-free status, and references are required.

Designs mechanical and electromechanical test fixtures, tooling, and related hardware for optical networking products. Responsibilities include CAD modeling, engineering drawings, BOMs, configuration-controlled documentation, engineering analysis, tolerance studies, fabrication support, assembly, troubleshooting, validation, and deployment. The role collaborates with engineers, technicians, suppliers, and manufacturing partners to deliver reliable, manufacturable solutions throughout the product development lifecycle.

Lead the architecture, hydraulic design, documentation, integration, manufacturing readiness, controls coordination, and commissioning of liquid-cooling and mechanical distribution systems for modular AI data centers. Own P&IDs, calculations, equipment and valve schedules, interfaces, standards, and performance validation. Collaborate with thermal, electrical, controls, manufacturing, commissioning, supply chain, OEM, and field teams to create scalable, serviceable, repeatable systems for deployment across multiple sites.

The Design Engineer will manage MEP and HVAC design processes for projects, ensuring energy efficiency and user satisfaction from concept to completion, while mentoring juniors and collaborating with teams.

Designs and develops pharmaceutical drug-delivery devices and platforms using CAD, prototyping, testing, tolerance analysis, and Design for Manufacturing principles. Collaborates with internal teams, external consultants, CROs, and manufacturing partners to troubleshoot products, support design controls, build intellectual property, and transfer devices into production. Manages project budgets and timelines while serving as a technical resource for cross-functional teams.

Lead mechanical design, analysis, inspection, and construction for heavy movable bridge structures and systems. Provide technical leadership, produce plans/calculations/specifications/estimates, manage project quality, budgets, and junior staff, and coordinate with stakeholders for rehabilitation and new movable bridge projects.

Collaborate on mechanical designs for data center systems, validating performance, overseeing construction, and ensuring designs meet quality benchmarks.

Lead mechanical engineering evaluations for data center opportunities, assessing HVAC, cooling, chiller, CRAH/CRAC, liquid cooling, and critical equipment systems. Conduct facility due diligence, validate capacity and design assumptions, evaluate vendors and deployment risks, and provide feasibility and Go/No-Go recommendations. Support mechanical design strategies, equipment selection, commissioning, and construction readiness while partnering with engineering teams, consultants, and vendors to establish scalable standards for hyperscale and AI infrastructure.