Senior Manufacturing Engineer

Reyes Automotive Group•San Antonio, TX
•Onsite

About The Position

The Senior Manufacturing Engineer supports the Continuous Improvement/Manufacturing Engineering department by creating and maintaining engineering systems. The role applies Lean and Six Sigma concepts and practices to improve the efficiency and effectiveness of Reyes Automotive Group’s manufacturing operations. It supports the Plant Manager and Continuous Improvement team, leads high-impact Kaizen projects, develops interns, and contributes to production launches, scheduling, inventory control, and project reviews. The position is onsite and full-time, is exempt, and has direct reports including a Staff Manufacturing Engineer and interns. It reports to the Plant Manager on a solid line and to the Manufacturing Engineering Manager for functional direction.

Requirements

  • Bachelor’s degree in Industrial Manufacturing or Mechanical Engineering from an accredited university.
  • Five to eight years of related experience through job experience, class projects, and internships.
  • Lean Manufacturing training required.
  • Intermediate-to-advanced proficiency with Microsoft Office, including Word, Excel (including Macros), and PowerPoint, as well as email and web browser applications.
  • Intermediate-to-advanced math skills, including the ability to calculate figures and amounts such as discounts, interest, commissions, and percentages.
  • Ability to understand and follow written and verbal instructions and prepare reports and business correspondence.
  • Ability to read, write, and speak English.
  • Strong analytical, planning, and critical-thinking skills, with a continuous-improvement orientation.
  • Strong attention to detail and ability to manage, organize, and prioritize varied projects and tasks.
  • Excellent interpersonal, oral, and written communication skills, including the ability to work across organizational levels and cultures.
  • Strong understanding of Lean Manufacturing concepts and the Toyota Production System.
  • Strong problem-solving and leadership skills.
  • Knowledge of facility and layout design.
  • Basic understanding of injection molding and auxiliary equipment.
  • Flexibility to manage multiple projects, demands, business partners, and situations while remaining calm under pressure.
  • Ability to work extended hours across multiple shifts, including some weekends and holidays when necessary.
  • Professional presence, high ethical standards, and ability to handle confidential information sensitively.
  • Ability to perform the job safely in accordance with standard operating procedures and wear required personal protective equipment.
  • Ability to lift 25 pounds individually and team lift 50 pounds.

Nice To Haves

  • Six Sigma Black Belt certification preferred.
  • Fusion 360 and CAD skills preferred.
  • 3D printing knowledge preferred.

Responsibilities

  • Support the Plant Manager and Continuous Improvement team with daily tasks.
  • Apply Lean Manufacturing principles on the production floor and in inventory areas to reduce waste.
  • Lead and develop Manufacturing Engineering interns through leadership, training, and Kaizen activities.
  • Track Continuous Improvement projects daily and weekly.
  • Perform statistical analysis to assess machine capabilities and production trends and predict production outcomes.
  • Develop manufacturing and production processes to reduce costs and improve overall equipment efficiency.
  • Lead Kaizen projects with cross-functional teams on high-impact business projects.
  • Manage launch activities, including pre-launch documentation, preparing and conducting trials, post-trial activities, PFS updates, and follow-up.
  • Maintain pre-launch component, resin, and finished-goods inventory.
  • Prepare and track pre-launch orders (EPNS/TPROMS).
  • Create and update the Master Schedule based on Toyota milestones and plant projects.
  • Conduct project-status review meetings with management.
  • Train Manufacturing Engineering staff and interns in Lean Manufacturing.
  • Perform other duties as assigned.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service