Manufacturing Engineer

Bren-Tronics Defense LLC; Commack (NY); On-site; USD 75,000 - 90,000; Full time

Benefits offered by this job

Generous Time Off

Comprehensive Benefits

Financial & Career Growth

401(k) Matching

Innovative Culture

Job summary

EnerSys Advanced Systems in Commack, NY seeks a Manufacturing Engineer to support Bren-Tronics production through process implementation and optimization. You will work with operations, quality, and supply chain to improve efficiency, reduce waste, and maintain compliance.

The ideal candidate has 3+ years in a defense-focused manufacturing environment, a relevant bachelor’s degree, and strong problem-solving and communication skills.

Qualifications

• 3+ years in Manufacturing Engineering; defense manufacturing preferred.
• Bachelor's degree in Manufacturing Engineering, Mechanical or Industrial Engineering.
• Lean manufacturing, quality systems, and process control knowledge.
• Strong teamwork and cross-functional collaboration.
• Excellent verbal and written communication.
• Proficient in CAD; SolidWorks a plus.

Responsibilities

• Develop, optimize, and maintain manufacturing processes to improve efficiency and throughput.
• Troubleshoot process issues and provide technical guidance in production.
• Coordinate between Manufacturing and Engineering to transition new designs to production.
• Create and update work instructions, SOPs, and process documentation.
• Train operators to comply with work instructions and quality standards.
• Lead continuous improvement initiatives including lean practices and RCA.
• Design tooling, fixtures, and equipment improvements for capability and safety.
• Analyze production data to identify trends and bottlenecks.
• Monitor rework and yield, and report significant findings.
• Support equipment maintenance and layout planning for efficient workflow.
• Perform other duties as assigned.

Skills

Manufacturing engineering

Lean manufacturing

CAD software

Teamwork

Problem solving

Education

Bachelor's degree in Manufacturing Engineering

Tools

SolidWorks

CAD software

Job description

Requisition ID12779-Posted07/21/2026

EnerSys Advanced Systems (EAS) is a specialized division of EnerSys—a global leader in stored energy solutions for industrial applications. EAS focuses on cutting-edge energy solutions for the aerospace, defense, and medical industries. As we continue to grow, we’re looking for individuals who share a passion for these industries and want to be part of an innovative, dynamic team.

Certain positions at EnerSys Advanced Systems require access to information or technology that is subject to the International Traffic in Arms Regulations (ITAR) and other U.S. government security regulations. Candidates for these positions should be a “U.S. Person” under ITAR (U.S. citizen, lawful permanent resident, or a refugee/asylee) and/or otherwise comply with ITAR requirements for access rights to be considered for a position.

What We Offer:

• Generous Time Off – 3+ weeks of paid time off, plus 11 paid holidays
• Comprehensive Benefits – Medical, dental, and vision coverage for employees and dependents at a discounted rate
• Financial & Career Growth – Life insurance, short-term disability, educational reimbursement, flexible spending accounts, and an employee stock purchase plan
• 401(k) Matching – 100% match at a 6% contribution level
• Innovative Culture – We value excellence, teamwork, and long-term relationships with stakeholders, colleagues, and customers. Through innovative technology and ongoing training, we invest in our employees’ skills and career development.

At EAS, we don’t just build batteries – we power systems and devices that protect not only individual citizens but communities across the world.

Compensation Range:
$75,000 to $90,000 per year.
Compensation may vary based on applicant's work experience, education level, skill set.

The Manufacturing Engineer at Bren-Tronics, part of EnerSys is responsible for supporting production operations through process implementation and improvement, documentation, equipment optimization, and ensuring product quality and safety. This role works closely with operations, quality, engineering, and supply chain teams to improve efficiency, reduce waste, and maintain compliance with internal and external standards.

Essential Duties and Responsibilities

• Develop, optimize, and maintain manufacturing processes to improve efficiency, quality, and throughput.
• Support day to day production activities by troubleshooting process issues and providing technical guidance.
• Function as liaison between Manufacturing and Engineering to smoothly transition newly designed products to production.
• Create and update work instructions, process documentation, and standard operating procedures.
• Provide training to production operators to fully comply with work instructions, quality standards and engineering requirements, as needed.
• Lead and support continuous improvement initiatives, including lean manufacturing and root cause analysis activities.
• Design and implement tooling, fixtures, and equipment improvements to enhance production capability and operator safety.
• Analyze production data to identify trends, process bottlenecks, and improvement opportunities.
• Monitor rework and repair operations, consistently monitor and report yield issues, and regularly highlight significant findings.
• Conduct failure analysis, identify root causes, and pursue effective solutions to minimize in-process defects.
• Support equipment maintenance, calibration, and layout planning for efficient workflow.
• Other duties as assigned.

Qualifications

• 3+ years in Manufacturing Engineering role, defense Manufacturing industry, strongly preferred.
• Bachelor’s degree in Manufacturing Engineering, Mechanical Engineering, Industrial Engineering, or related field.
• Understanding of lean manufacturing principles, quality systems, and process control.
• Strong teamwork and collaboration with various groups both internal and external.
• Excellent communication, written and verbal skills with cross functional teams.
• Strong problem solving skills and ability to lead root cause and corrective action efforts.
• Proficient with CAD software, SolidWorks a plus.

General Job Requirements

• Generic

EnerSys is always looking to hire top talent. Therefore, we encourage our employees to refer anyone they feel would be a great addition to our organization.

We use artificial intelligence to screen, assess and select applicants for open positions, including for the purposes of reviewing and ranking application materials and scoring answers to application questions. Accordingly, decisions about your application and eligibility for employment with EnerSys may be made based exclusively on the automated processing of the personal information that you submit in your application materials.