Mechanical Engineering Internship Jobs in Springfield, NJ

With over 40 years of industry leadership, CP Engineers delivers innovative solutions in site/civil, water/wastewater, municipal, MEP, and environmental engineering. Our diverse portfolio spans private, municipal, county, and regional clients—many of whom have partnered with us for decades. Join a fast-growing team dedicated to technical excellence, client satisfaction, and professional growth.

Remote work flexibility, competitive compensation and benefits, and a supportive culture have helped CP earn Best Places to Work in NJ awards for three years straight and have driven strong employee retention.

Position Overview:

CP Engineers is seeking a highly skilled Senior Mechanical Engineer to provide technical leadership and mentorship within our mechanical engineering team. This role is responsible for developing project scopes, preparing budget estimates, and overseeing mechanical design work to ensure the delivery of high‑quality, accurate, and consistent engineering outputs across the organization.

The Senior Mechanical Engineer will review, sign, and seal mechanical drawings and will also contribute hands‑on design support as required. Project work may include mechanical systems for commercial and industrial buildings, water and wastewater pump stations, treatment facilities, and various municipal infrastructure projects.

Technical & Design Responsibilities:

• Lead mechanical engineering design for HVAC, plumbing, and mechanical systems across commercial, industrial, municipal, and infrastructure projects.
• Perform mechanical calculations, equipment selections, system sizing, and detailed technical analyses.
• Prepare and seal engineering drawings, specifications, and reports in accordance with state PE requirements.
• Conduct system modeling (e.g., energy modeling, load calculations) to optimize system performance.
• Review and approve design documents prepared by junior engineers and CAD staff.
• Ensure all designs meet applicable codes (IMC, IPC, NFPA, ASHRAE, OSHA, local/state regs).
• Process design experience a plus.
• Experience working with gas systems, generators, fire suppression systems, cleanrooms, storage tanks, oil water separators a plus.

Project Delivery & Coordination:

• Serve as the mechanical discipline lead on multi‑disciplinary project teams, coordinating closely with electrical, structural, civil, and water resources groups.
• Develop complete plan sets, technical specifications, and bid/construction documents.
• Support construction-phase services: respond to RFIs, review submittals, conduct field inspections, issue punch lists, and prepare site visit reports.
• Participate in value engineering, feasibility studies, and system evaluations for renovation and new construction projects.

Quality & Compliance:

• Maintain compliance with firm-wide QA/QC procedures.
• Review design deliverables for technical accuracy, constructability, and regulatory compliance.
• Verify that designs meet safety, reliability, maintainability, and operational requirements.
• Maintain up-to-date knowledge of emerging electrical codes, utility standards, and industry advances.

Client Engagement & Business Support:

• Meet with clients to define project scope, requirements, and technical expectations.
• Provide technical guidance, recommendations, and solutions during planning and project execution.
• Support proposal writing, project budgeting, and mechanical scope development.
• Attend client meetings, presentations, and project interviews as required.

Leadership & Mentoring:

• Provide technical mentorship to junior mechanical engineers, EITs, and designers.
• Support staff development through training on codes, design standards, and best practices.
• Oversee workload distribution, task assignments, and schedule adherence for mechanical discipline tasks.

Compensation: $115,000-$145,000+ (commensurate with experience)

Requirements

• Degree in Mechanical Engineering or equivalent from an accredited university.
• Maintain active Professional Engineer (PE) license in NJ (or ability to obtain via reciprocity).
• Minimum 7-10 years of mechanical engineering experience, with a track record of leading, mentoring, or supervising other engineers.
• Represent the firm at industry events, technical conferences, or professional association meetings as needed
• Excellent ability to review and critique designs and provide constructive guidance.
• Strong verbal and written communication skills, high attention to detail, and the ability to work collaboratively in a team environment.
• Understanding of construction processes and field coordination, with the ability to support field engineers when necessary.
• A valid driver’s license and dependable transportation.
• Must be proficient in AutoCAD

Benefits

• Flexible Work Options: Hybrid/remote work arrangements
• Work/Life Balance: Flexible hours, 20 days paid time off
• Financial Security: 401(k) with 4% company match
• Professional Growth: Tuition reimbursement, professional license and association fee coverage
• Comprehensive Health: Medical, dental, and vision insurance
• Supportive Culture: Commitment to employee well-being and career development