Senior Mechanical Design Engineer

ATC Automation•Simi Valley, CA

8d•$120,000 - $140,000•Hybrid

About The Position

ATC Automation is seeking a hands-on and innovative Senior Mechanical Design Engineer to lead the mechanical development of custom automation machinery and tooling systems at our Simi Valley, CA location. Remote opportunities may be considered for highly qualified candidates, with occasional travel required to the Simi Valley facility. Projects will range in size and complexity, from rapid R&D initiatives to fully integrated, high-speed production systems. In this role, you will collaborate directly with customers to define project requirements and work alongside a multidisciplinary engineering team to deliver reliable, high-performance automation solutions. This position offers a competitive annual salary range of $120,000 to $140,000, along with opportunities for continued professional development and career advancement. Benefits include Medical, Dental, Vision, 401(k), Life Insurance, Health Savings Account, Flexible Spending Account, and Paid Time Off. If you are driven by innovation and motivated to make a measurable impact in automation, this opportunity offers an exciting environment to grow your career and showcase your expertise. Meet ATC Automation: Since 1977, ATC Automation has been redefining what's possible in custom automation. From concept to commissioning, we partner with leading brands across the globe to design and deliver custom machinery that drives efficiency, precision, and long-term performance. Our automation expertise spans critical industries that shape the way we live and move-Life Science, Transportation, Consumer Products, and General Industry.

Requirements

Proven success in custom automation and machine design environments
Strong ability to size, specify, and integrate automation peripherals such as actuators, sensors, and vision systems
Advanced proficiency with SolidWorks or equivalent 3D CAD software
Extensive knowledge of engineering drawings, GD&T, and tolerancing standards (Y14.5M-2009)
Strong understanding of mechanical components, materials, and manufacturing processes including machining, welding, and sheet metal fabrication
Working knowledge of controls and automation system fundamentals
Excellent analytical, troubleshooting, and problem-solving abilities
Strong written and verbal communication skills
Minimum of 6 years of hands-on experience designing custom automated machinery
Experience specifying and troubleshooting pneumatic systems and related components
Expertise in designing fixtures, jigs, and custom tooling for precision automation and assembly applications

Nice To Haves

Bachelor's degree or higher in Mechanical Engineering or a related technical field
10+ years of experience in mechanical design within custom automation, machine building, or related industries
Familiarity with compliance standards including CE, NFPA 79, and SEMI S8
Hands-on experience troubleshooting and improving automated machinery performance
Experience specifying and integrating machine vision equipment, including cameras, lenses, lighting, filters, and mounting systems

Responsibilities

Lead the mechanical design and development of custom automation systems, mechanisms, and components
Establish and maintain best practices, design standards, and continuous improvement initiatives for mechanical engineering processes
Integrate both standard and custom automation components, including robotics, actuators, sensors, and vision systems
Ensure projects are completed on schedule and within budget while coordinating progress with Project Managers and cross-functional teams
Create detailed 3D CAD models and manufacturing-ready 2D drawings for fabrication and assembly
Mentor junior engineers through technical guidance, design reviews, and quality oversight
Provide hands-on support during equipment build, testing, and commissioning activities
Design, build, and evaluate mechanical prototypes to validate concepts prior to production deployment
Collaborate closely with controls and software engineers to ensure seamless system integration
Coordinate with suppliers and vendors to maintain component quality, compatibility, and delivery schedules
Partner directly with customers to refine project requirements and ensure successful system performance
Support onsite equipment installation, startup, troubleshooting, and optimization activities as needed