Senior Mechanical Engineer
$130k - $160kEnerSys
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, including PTO and paid sick leave, 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.
If you’re excited about working in an innovative, fast-paced, high-tech environment, where your contributions make a real impact, we’d love to hear from you!
Compensation Range: $130,000-$160,000
Job Purpose
As a Senior Mechanical Engineer at Bren-Tronics, part of EnerSys and a manufacturer of advanced portable power solutions, you will provide technical leadership while leading, organizing, and contributing to the design and development of batteries, chargers, and other complex energy storage systems. This role requires strong expertise in the design of injection-molded and sheet-metal components to support reliable, manufacturable solutions for demanding applications.
Essential Duties and Responsibilities
• Work closely with management, electrical engineers, drafters, technicians, and manufacturing personnel to design, and develop new products.
• Utilize SolidWorks to generate designs of systems, assemblies, and components.
• Generate comprehensive technical drawings and schematics for mechanical systems and components while working within the configuration control systems ensuring accuracy, consistency.
• Develop sources for mechanical system components.
• Perform structural and thermal analyses on designs.
• Provide expert leadership and troubleshooting for the construction and refinement of battery system prototypes to production.
• Facilitate the seamless transition of new battery products from the prototype stage to full-scale production.
• Engineer specialized fixtures and assembly aids tailored for battery production, optimizing manufacturing processes and ensuring product quality.
• Identify and resolve technical issues within the supply chain.
• Engage in the creation and refinement of project proposals, ensuring technical accuracy, compliance with client requirements, and alignment with organizational goals.
• Mentor junior engineers and support team development.
Qualifications
• Bachelor’s degree in Mechanical Engineering, A Master’s degree is preferred.
• Minimum of 10 + years hands on experience developing products and working in engineering production department.
• Experience and high proficiency with SolidWorks.
• Must possess experience in metal and plastic injection molding.
• Battery packaging experience a plus.
• Strong knowledge of mechanical engineering principles, materials, and processes.
• Experience mentoring and developing engineering team.
• Excellent communication, problem-solving, and decision-making skills.
• Strong Customer/Client focus, technical capacity and discretion.
EnerSys provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
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.
- ...Senior Mechanical Engineer Location: Brentwood, NY Position Overview We are seeking a hands-on Mechanical Engineer to support the design, analysis, development, and testing of complex electromechanical products and mechanisms. This role is ideal for an engineer...SeniorFull time
- ...growth phase at this very well-established Long Island manufacturer and they are currently looking for a highly talented Senior Mechanical Engineer to join their team. You won't want to miss out on this opportunity to jump on board with an employer that really knows how...SeniorLocal area
$125k - $130k
...shine. Whether you're creative, strategic, persuasive, or mechanically inclined, there’s a place for you here. Be a problem-... ...? Keep reading. Modern Packaging is seeking a talented Senior Mechanical Design Engineer to lead the mechanical development, redesign, and...SeniorFull timeTemporary workLocal area- Sr. Mechanical Design EngineerJob Order ID:11600Employment Type:PermanentSalary:$120000-150000/YrWeb Publication Date:7/14/2026Job Location... ...of the job is to execute assigned design work to support engineering project activity. Responsibilities include the conceptual...Senior
$120k - $160k
...Group, a well-established multi-discipline engineering, architecture, and environmental... ...compliance. We are seeking an experienced Senior Project Engineer to join our team at our... ...implementation, and administration of complex mechanical, HVAC, plumbing, and fire protection...SeniorFor contractorsWork at officeLocal area- ...PlacementSalary$115,000-$130,000 / yearLeading Long Island electronics manufacturer has an exciting career opportunity for a Senior Mechanical Engineer. This is an opportunity you won't want to miss out on as it comes with incredible perks that few companies can match. If...SeniorLocal area
- ...Senior Mechanical Engineer Location: Plainview, New York Visa: Any Visa Keywords: Development and characterization of processes on equipment in the R&D and manufacturing semiconductor fab/lab. Semiconductor, Process Development. Job Description: Work on development...SeniorWork at office
- Mechanical / Manufacturing Engineer - Aerospace (Hauppauge, NY)Salary: Open / DOE | Full-Time | On-SiteA growing aerospace engineering and manufacturing company in Hauppauge, NY is seeking a Mechanical or Manufacturing Engineer with direct aerospace manufacturing experience...Full time
- ...production. The Opportunity We are seeking an exceptional Senior / Lead Robotics & Automation Engineer to take technical ownership of developing and... ..., testing, and commissioning. Collaborate with mechanical, electrical, manufacturing, propulsion, software, and...SeniorFull timeTemporary work
$115k - $130k
...Senior Mechanical Engineer We are seeking a Senior Mechanical Engineer to join a growing engineering team responsible for the design, development, analysis, and validation of innovative electro-mechanical products. This position offers the opportunity to work...SeniorPermanent employmentFlexible hoursDay shift$95k - $115k
...Twinco Mfg. Co., Inc. is a leading manufacturer of a wide variety of railroad signal equipment seeking a Mechanical Engineer to support continued expansion of our product lines. In this role, you will be responsible for designing, analyzing, and documenting mechanical...Full timeFlexible hours$105k - $135k
...power progress.About the Role:You will play a crucial role in engineering and technology projects from concept through prototype... ...cross-functional teams. You will leverage expertise in thermo-mechanical design, electromechanical components, materials, and fabrication...Full timeRelocation package$130k - $165k
...Sr. Packaging Engineer Mini-Circuits designs, manufactures and distributes integrated circuits, modules, and sub-systems for high-performance radio frequency (RF) and microwave applications. With design, sales and manufacturing locations in over 30 countries, Mini-...SeniorContract workWork at office- ...Mechanical Engineer Position At Irocket iRocket is developing fully autonomous, fully reusable small launch vehicles to provide responsive, cost-effective access to space. Our mission is to catalyze a new era of space exploration through innovation in propulsion, structures...
$90k - $110k
We are seeking a Mechanical Engineer to support continued expansion of our product lines. In this role, you will be responsible for designing, analyzing, and documenting mechanical systems and components to meet project specifications; this will be accomplished through...Permanent employmentTemporary workWork experience placementShift work$70k - $90k
...impact, we'd love to hear from you! Compensation Range: $70,000 - $90,000 Learn More About EAS Job Purpose As a Mechanical Engineer at Bren-Tronics, part of EnerSys and a manufacturer of advanced portable power solutions, you will work in a fast-paced...Permanent employmentTemporary workLocal areaFlexible hours$107.1k - $160.7k
...the world’s leading integrated design practice. Our architects, engineers, interior designers, consultants, sustainability specialists,... ...ExperienceBachelor's Degree Engineering with an emphasis in Mechanical, Electrical or Chemical Engineering is preferred, or appropriate...SeniorFull timeTemporary workPart timeCasual workWork at officeLocal areaImmediate startFlexible hours$110k - $130k
...skill set. Learn More About EAS Job Purpose The Senior Manufacturing Engineer at Bren-Tronics, part of EnerSys and manufacture of advanced... ...as assigned. Qualifications ~ Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, Electrical...SeniorPermanent employmentTemporary workWork experience placementLocal areaFlexible hours$100k - $160k
DescriptionKforce's client is a well-established, middle-tier full-service CPA firm located on beautiful Long Island, NY is seeking a Tax Senior and Tax Manager to their growing tax department.Summary:The Tax Senior and Tax Manager will service diverse clientele, handling tax...SeniorWork from home$110k - $130k
...experience, education level, skill set. Job Purpose The Senior Manufacturing Engineer at Bren-Tronics, part of EnerSys and manufacture of... ...as assigned. Qualifications ~ Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, Electrical Engineering...SeniorPermanent employmentTemporary workWork experience placementLocal areaFlexible hours$106k - $142k
...Embedded Senior Software Engineer Location: Hauppauge, NY | Work: 100% Onsite | Salary: $106K–$142K + 12.5% Bonus Type: Direct Hire/ Full time Job Summary: Seeking a senior embedded software engineer with 5+ years of experience developing embedded...SeniorFull time- ...FlexStaff is hiring an Opto-Mechanical Product Engineer for our client, an aerospace and industrial manufacturing company located in Deer Park... ...experience is preferred. What You'll Do: Partner with senior engineering staff to learn existing optical systems,...Permanent employmentFull time
- ...Senior Cnc Machinist We are seeking an experienced Senior CNC Machinist to join our manufacturing team. The ideal candidate is a highly skilled machinist who can independently set up, program, operate, and troubleshoot CNC equipment while producing high-quality, close...Senior
$102k - $138k
DescriptionKforce has a client in Hauppauge, NY that is seeking a Tax Manager/Tax Senior. Summary: Due to rapid growth, Kforce's client, a Long Island based CPA firm which specializes in High Net Worth and family office clients, is seeking a Tax Manager and a Tax Senior...SeniorWork at officeFlexible hours- ...and the ability to collaborate closely with project managers, engineers, vendors, and clients. Key Responsibilities · Prepare detailed... ...-union labor environments · Knowledge of value engineering and cost analysis . Background working with mechanical contractors...For contractorsFor subcontractorLocal area
$90k - $140k
...Description: We are seeking a hands-on Automation & Controls Engineer to support, troubleshoot, and improve a wide range of... ...regulated pharmaceutical environment. This role is ideal for mechanically inclined problem-solvers who enjoy being on the production floor...Full timeContract workImmediate startMonday to Friday- ...FlexStaff is seeking a Senior Quality Technician for our client, an aerospace and industrial manufacturing company located in... ...develop and modify inspection programs, interpreting complex engineering drawings and Geometric Dimensioning and Tolerancing requirements...SeniorPermanent employmentFull time
- ...Senior Principal Electrical Engineer Provide technical leadership throughout the entire product lifecycle, from requirements definition and system architecture through qualification, production, and long-term sustainment. Lead the design, analysis, simulation, verification...Senior
- ...Position Title: Senior Accountant (Avalara Experience Required) Location: Hauppauge, NY (On-Site) Industry: Manufacturing We are seeking a hands-on Accountant with Avalara experience to join a growing manufacturing company in Hauppauge, NY. This role will support...SeniorFull timeImmediate start
- ...Senior RF Engineer EXEMPT Job Summary (Duties include but not limited to): Responsibilities include design, simulation, engineering document release, and prototype test of new products. Communicates with and visits with customers, creates outline drawings...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Mechanical Engineer. Be the first to apply!
- senior resident engineer Commack, NY
- senior Commack, NY
- senior performance engineer Commack, NY
- senior manager diversity & inclusion Commack, NY
- senior application administrator Commack, NY
- srs Commack, NY
- senior application security Commack, NY
- senior operations technician Commack, NY
- senior transformation specialist
- senior technical operations manager







