Senior Mechanical Engineer

Seeking a Senior Mechanical Engineer with FEA Experience Turn analysis into better hardware.

Simplexity is seeking a hands-on Senior Mechanical Engineer to help advance cutting-edge robotics designs, embedded with our team at a client’s site in Bellevue, WA.

In this full-time, on-site role, you’ll use finite element analysis (FEA) to guide design decisions and take improvements from modeling through testing and release-quality documentation.

This is an opportunity to connect simulation with real-world engineering:

• explain the tradeoffs behind your recommendations, diagnose hardware failures, and optimize designs for manufacturability, cost, assembly, and reliability.
• You’ll work directly with client stakeholders, suppliers, and manufacturing partners.

WHAT YOU’LL DO Perform simulation and analyses, including structural & thermal FEA, translating modeling results into clear design recommendations and tradeoffs Provide DFx feedback to inform designs Use previous experience working with motors and actuators Define tests, investigate failures, identify root causes, and rapidly iterate toward working hardware Present design tradeoffs, technical risks, engineering decisions, and project progress directly to client stakeholders Apply structured quality and problem-solving methods to improve manufacturing performance and reduce field and safety risks Work with suppliers and contract manufacturing partners to implement design recommendations Create and maintain part and assembly drawings, with particular attention to aspects that are critical to function Adapt to evolving client priorities while delivering on engineering goals throughout a long-term engagement REQUIRED FOR THE ROLE An ownership mindset:

• identify the work needed, manage your priorities, and hold yourself accountable for delivering against a fast-paced schedule Ability to work full-time on-site in Bellevue, WA at Simplexity’s client’s site Minimum of 2 years of finite element analysis (FEA) experience 8+ years of applicable engineering experience Bachelor’s or master’s degree in Mechanical Engineering or a related engineering discipline Proficiency with FEA software; ANSYS is highly preferred Proficiency with a mechanical CAD package; SolidWorks is highly preferred A positive, client-focused approach and a commitment to ethical conduct EXPERIENCE THAT WILL HELP YOU STAND OUT The following experience is a plus, not a requirement: Experience using SolidWorks PDM to manage CAD files Practical knowledge of manufacturing processes and high-volume production methods, including injection molding, casting, sheet metal, and machining Experience with and understanding of actuators, gear trains, and transmissions Strong skills in tolerance analysis and design for manufacturing and assembly (DFM/DFA) Hands-on testing, troubleshooting, and root-cause analysis experience Experience navigating technical discussions with clients or demanding external stakeholders while remaining a hands-on individual contributor Experience performing torque-speed, duty-cycle, inertia, efficiency, life, force, energy, vibration, or thermal analyses COMPENSATION AND BENEFITS Base salary range: $140K - $160K, depending on years of experience and skill sets Excellent Healthcare plan (Medical, Dental, and Vision) fully paid for by the company for the employee; partial payment for dependents 401(k) plan with company match Long-term and short-term disability, AD&D and Life Insurance Paid maternity/new parent leave 11 Paid holidays 3 weeks of paid time off (PTO) per year, increasing after 2, 5, and 9 years of service 1099 contractors who have their own registered consulting/contracting business will also be considered: Hourly rate $100 - $125/hr, depending on experience No benefits, holidays, or paid time off (PTO) included No recruiters please. Why join Simplexity Product Development?
• Simplifying the Complex.
• Simplexity is a product development engineering firm that helps leading technology companies bring advanced robotic and automation systems into reliable, scalable production.
• We reduce cost, improve quality, and strengthen manufacturing readiness for our clients.
• You’ll solve challenging manufacturing and hardware-quality problems involving integrated mechanical, electrical, sensing, actuation, and control systems.
• Our collaborative teams value meaningful work, technical growth, and sustainable work-life balance.
• Simplexity is an equal opportunity employer.
• We celebrate diversity and are committed to creating an inclusive environment for all employees.

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