Senior Sustaining Engineer - Medium Voltage Fuses

Littelfuse; Piedras Negras; On-site; MXN 900,000 - 1,200,000; Full time

Job summary

Littelfuse is seeking a Sr. Sustaining Engineer to maintain health of the medium voltage fuse portfolio, ensuring compliance and manufacturability at the Piedras Negras facility.

This role partners with Manufacturing, Quality, Applications, and NPD to drive improvements on existing products. You will mentor junior engineers, lead VA/VE and cost-reduction initiatives, coordinate with customers and OEMs on design changes, and ensure timely certification activities with UL/IEC/IEEE standards.

Qualifications

• Bachelor’s degree in Electrical/Mechanical Engineering required.
• 10+ years of sustaining/design engineering experience in electrical products or manufacturing.
• Experience with medium voltage products preferred.
• Strong knowledge of UL/IEC/IEEE/ANSI standards and product certification process.
• Proven track record leading VA/VE and cost-reduction projects.
• Proficiency with 3D CAD (Autodesk Inventor) and GD&T.
• Experience with 8D, FMEA, and DOE.
• Excellent English communication and presentation skills.
• On-site availability at the manufacturing facility.

Responsibilities

• Lead sustaining engineering for existing Industrial Circuit Protection products, including medium voltage fuses.
• Partner with Product Management to identify and execute cost reduction and VA/VE opportunities.
• Collaborate with manufacturing, quality, and process engineering on the factory floor to resolve production issues.
• Work with customers and OEMs to improve design, specifications, and implement customizations.
• Review product ratings and specifications to ensure compliance with UL, CSA, IEC, and IEEE/ANSI standards.
• Manage certification and agency approvals with third‑party labs and bodies.
• Review and modernize prints and initiate engineering change orders as needed.
• Support New Product Development by developing validation plans and sharing lessons learned.
• Mentor and guide junior engineers and technicians.

Skills

Sustaining engineering

Product certifications

Root cause analysis

VA/VE leadership

Autodesk Inventor

GD&T

UL/IEC standards

Cross-functional collaboration

English communication

On-site availability

Education

Bachelor’s degree in Electrical or Mechanical Engineering

Tools

Autodesk Inventor

Job description

Littelfuse is seeking a Sr. Sustaining Engineer to maintain health of the medium voltage fuse portfolio, ensuring compliance and manufacturability at the Piedras Negras facility.

This role partners with Manufacturing, Quality, Applications, and NPD to drive improvements on existing products. You will mentor junior engineers, lead VA/VE and cost-reduction initiatives, coordinate with customers and OEMs on design changes, and ensure timely certification activities with UL/IEC/IEEE standards.