MANUFACTURING ENGINEER INTERN

STS Metals Inc; Irwindale (CA); On-site; USD 42,000 - 46,000; Part time

Job summary

STS Metals Inc in Irwindale, CA is offering a hands-on internship focused on turning production data into practical improvements. You will analyze material yield, machine efficiency, and lead times to identify waste and bottlenecks on the manufacturing floor.

Work with Manufacturing, Planning, and Quality to collect and interpret data, then present findings with clear recommendations. Current students in ME/IE with strong Excel skills are encouraged to apply.

Qualifications

• Pursuing a bachelor’s degree in Mechanical Engineering, Industrial Engineering, Manufacturing Engineering, or related field.
• Strong analytical and problem-solving skills.
• Attention to detail and ability to gather, verify, and interpret data.
• Proficiency in Excel for organizing and presenting data.

Responsibilities

• Make every pound count by analyzing material yield and identifying waste.
• Explore machine efficiency by comparing actual run time vs planned hours.
• Follow the production flow to uncover bottlenecks and delays.
• Collaborate with Manufacturing, Planning, and Quality to gather and interpret data.
• Present findings in clear reports with data-backed recommendations.

Skills

Analytical skills

Attention to detail

Communication

Problem-solving

Education

Bachelor's degree in Mechanical Engineering or Industrial Engineering

Tools

Microsoft Excel

PivotTables

Power BI

Job description

Job Details: Job Location: IRWINDALE, CA 91706, Salary Range: $20.00 - $22.00 Hourly, STS Metals is a unified organization composed of six businesses working together to deliver high-quality titanium, stainless and alloy steel and nickel products. We proudly serve the aerospace, medical, industrial, and space industries with a commitment to innovation, manufacturing excellence, and superior customer service.

Turn production data into real improvements.

Want to see how engineering decisions make a difference on the manufacturing floor? Join STS Metals and gain hands‑on experience helping an aerospace metals manufacturer improve material utilization, machine efficiency, and production flow.

You’ll work alongside Manufacturing, Planning, and Quality to investigate how production performs, identify opportunities, and turn your findings into practical recommendations. Bring your curiosity, analytical skills, and fresh perspective to projects with measurable impact.

What You’ll Do

• Make every pound count. Analyze material yield by comparing material used in production with material sold or shipped, helping identify sources of waste and opportunities to improve utilization.
• Explore machine efficiency. Compare actual machine run time and labor hours with planned hours to understand performance gaps and improvement opportunities.
• Follow the production flow. Evaluate queue times and overall lead times against planned schedules to help uncover bottlenecks and delays.
• Connect data with what happens on the floor. Collaborate with Manufacturing, Planning, and Quality to gather, validate, and interpret production data.
• Tell the story behind the numbers. Organize findings into clear reports supported by data, highlighting trends and recommendations for improvement.

What You Bring

• Currently pursuing a degree in Mechanical Engineering, Industrial Engineering, or a closely related field.
• An interest in manufacturing, process improvement, and solving practical engineering problems.
• Strong analytical skills, attention to detail, and a willingness to ask questions.
• Familiarity with Excel for organizing, analyzing, and presenting data.
• The ability to communicate clearly and collaborate with people across departments.
• A commitment to learning and following safety procedures in a manufacturing environment.

What You’ll Gain

• Hands‑on exposure to aerospace metals manufacturing.
• Experience analyzing real production challenges involving materials, equipment, labor, and scheduling.
• Opportunities to learn from experienced manufacturing, planning, and quality professionals.
• Practice turning technical analysis into recommendations that support better operational decisions.
• Meaningful project experience to strengthen your engineering foundation and résumé.

Ready to put your engineering mindset to work? Help us find smarter ways to make the materials that move aerospace forward.

Qualifications: Required:

• Currently pursuing a bachelor’s degree in Mechanical Engineering, Industrial Engineering, Manufacturing Engineering, or a related field.
• Strong analytical and problem-solving skills, with an interest in improving manufacturing processes.
• Proficiency in Microsoft Excel, including formulas, charts, and organizing data.
• Attention to detail and the ability to gather, verify, and interpret data accurately.

Preferred:

• Relevant coursework or projects involving manufacturing processes, statistics, operations analysis, or continuous improvement.
• Familiarity with Lean manufacturing concepts, time studies, material utilization, or production scheduling.
• Experience with PivotTables, Power BI, or other data analysis tools.
• Previous internship, laboratory, or hands‑on technical project experience.

You don’t need to have it all figured out. We’re looking for curiosity, initiative, and a willingness to learn.

Clear communication skills and the ability to collaborate with production employees, engineers, and other departments.

A willingness to spend time on the manufacturing floor, learn production processes, and follow all safety requirements.