Day Shift Injection Mold Maintenance Jobs in Merrick, NY

D’Addario & Company is the largest manufacturer and distributor of musical instrument accessories in the world. As a US based manufacturing company, we pride ourselves on high automation machinery and innovative technology, as well as our commitment to environmentally sustainable practices. Through our work with the D'Addario Foundation we are committed to helping make music education accessible and ensuring hundreds of thousands of students can participate in music-making programs worldwide, regardless of instrumentation, genre, or life circumstance. Most importantly, we pride ourselves on our diverse team of individuals who commit to the embodiment of our core values of curiosity, passion, candor, family and responsibility and translate them into action every day.

The Polymer Process Engineer is responsible for understanding polymer materials and manufacturing processes, and contributing this knowledge in support of product and process development, performance testing, quality assurance, and continual improvement. Specifically, this role will have responsibility for product development and manufacturing support in connection with injection molding, monofilament extrusion, and pultrusion processes. The position will work on-site 5 days a week at our Farmingdale, Long Island, NY headquarters.

At D’Addario, we don’t just offer a job—we offer a career with one of the most iconic names in the music industry. We’re passionate about innovation, craftsmanship, and creating a workplace where diverse backgrounds, perspectives, and ideas thrive.  We’re eager to connect with individuals who bring fresh thinking and a collaborative spirit. If you’re ready to make an impact, we’d love to hear how you’ll add value to our team.

Some Perks & Benefits of Working at D'Addario:

• 401(k) Retirement Plan: Once eligible, D’Addario provides an employer Safe Harbor contribution of 3% of total annual earnings, with the opportunity to earn up to an additional 7% in employer Discretionary contributions, regardless of employee contribution level
• Health, vision, and dental insurance
• 12 weeks of fully paid parental leave
• Fertility and family-building benefits
• Annual performance and compensation reviews
• Career pathing and professional development via LinkedIn Learning
• A generous allotment of Paid Time Off (PTO) days
• Flexible sick day policy
• 12 paid holidays
• Life and AD&D insurance
• Enhanced short-term disability insurance
• Employee Assistance Program (EAP)
• Tuition reimbursement
• Discounts on D’Addario products and merchandise
• Company jam nights, artist performances, holiday parties, and special events
• A passionate, talented team that loves what they do!

Compensation: 

We offer a competitive total compensation package. The base salary range for this role is $90,000-$150,000 and is commensurate with experience, skills, and qualifications. This position is eligible for a discretionary annual bonus, in accordance with company policy.

• Manage technical operations of injection molding, extrusion, and pultrusion processes
• Raw material selection, compounding, qualification, and inventory management all the various products defined above.
• Review and provide input to part drawings, specifications, and part tolerancing
• Oversee mold and die design, set-up, qualification, maintenance and storage
• Plan the creation of a mold making & repair facility
• Facilitate equipment upgrades, modifications, and repairs
• Create work instructions, carry out operator training, implement QC procedures
• Coordinate technical problem solving, root cause analysis, and continual improvement activities
• Implement in-process data acquisition, process capability assessments, and Statistical Process Control
• Carry out product performance and acceptance testing
• Manage external vendors as necessary

• B.S. in Mechanical Engineering, Polymer Engineering, Materials Science, or related field.
• 5+ years direct experience with injection molding, extrusion, and/or pultrusion materials and processes.
• Must be proficient in MS Office, Excel, statistical analysis software such as Minitab, and 3D modeling software such as SolidWorks.
• Ability to communicate and report conclusions clearly and concisely.
• Specific knowledge in polymer structure, properties, compounding, processing, and quality control.
• Expert understanding of polymer characterization, standardized test methods and equipment.
• Review and provide input to mold and die designs, mold flow, finite element, and thermal analysis reports.
• Six Sigma, Lean, and Total Quality Management knowledge desirable.
• General skills in root cause analysis, continual improvement, and quality assurance.
• Formal project management skills desirable.

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