Job description

Senior Mechanical and Robotics Design Engineer POSITION DESCRIPTION Build the mechanisms that bring robotics to life. Simplexity is seeking a hands-on Senior Mechanical Engineer to join our team embedded at a Seattle-area client to develop cutting-edge robotic designs. You’ll make subsystem decisions, coordinate interfaces, communicate risks, and stay close to the hardware through hands-on design, analysis, drawings, prototyping, and testing in a fast-paced environment. WHAT YOU’LL BUILD AND OWN • Translating system needs into clear requirements, architectures, and interfaces • Sizing and selecting motors, gearboxes, encoders, bearings, and drivetrain or transmission components • Developing moving mechanisms—from linkages and gear trains to belts, pulleys, and cables • Designing specialized end-effectors • Solving tight packaging challenges by integrating sensors, wiring, PCBs, and related electronics • Creating and managing complex SolidWorks assemblies, configurations, BOMs, and ASME Y14.5 drawings within a PDM-controlled revision workflow. • Designing custom and semi-custom parts for machining, sheet metal, injection molding, 3D printing, and other prototype or production processes • Helping the client make informed decisions by clearly presenting design tradeoffs, technical risks, and recommendations WHAT YOU’LL BRING • Bachelor’s or master’s degree in Robotics, Mechanical Engineering, or a related engineering discipline • 8+ years of applicable product-development experience • Experience with robotic actuation and mechanisms, including motor/transmission selection and kinematic or dynamic analysis • SolidWorks expertise spanning complex assemblies, configurations, production drawings, and PDM-controlled revision workflows • Availability to work on-site at the Seattle-area client location EXPERIENCE THAT WILL HELP YOU STAND OUT Bring additional depth in any of these areas: • A track record of owning at least one robotic or complex electro-mechanical subsystem from requirements and architecture through detailed design, working hardware, validation testing, and design release • Design of test fixtures, test instruments, or automated mechanical test equipment • Development of custom actuator or drivetrain solutions, internally or with external vendors • Strong command of GD&T (ASME Y14.5), tolerance analysis, and DFM/DFA, backed by practical knowledge of low-volume and production manufacturing methods • The ability to move confidently between design and the test bench, with hands-on experience in prototype assembly, instrumentation, testing, troubleshooting, and system-level root-cause analysis • Experience integrating complex mechanical designs with electrical, firmware, software, and systems engineering disciplines   COMPENSATION AND BENEFITS • Base salary: $140K–$160K, depending on years of experience and skill sets. • Medical, dental, and vision coverage with employee premiums fully paid by the company and partial payment for dependents • 401(k) plan with company match after 1,000 hours of service • 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 In addition, two types of contractor roles will be considered: W-2 contractor (hourly employee of Simplexity): • Hourly rate $70 - $95/hr, depending on experience • 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 after 1,000 hours of service • Long-term and short-term disability, AD&D and Life Insurance • 11 paid holidays • 15 days of paid-time-off (PTO) accrued each year 1099 contractors (have your own registered consulting/contracting business): • Hourly rate $95 - $125/hr, depending on experience • No benefits, holidays, or paid time off (PTO) included No recruiters please. Why join Simplexity? Simplifying the Complex. Simplexity is a product development engineering firm, hired by leading technology companies to design their next generation products. In an industry of overly-complex design and production, we strive for simplicity, reducing product cost and improving reliability for our clients through our Product Development Process. This job location is in the Seattle, WA metro region at a Simplexity client site. Simplexity is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Diverse candidates are encouraged to apply. *** Please be advised that Simplexity Product Development will never ask you to respond to a non-SimplexityPD domain such as a gmail, ymail, hotmail, etc. If you suspect that you have been contacted by someone impersonating Simplexity Product Development who is using a fraudulent email address, please do not reply. If you are not sure, please fill out a contact form at simplexitypd.com to report the incident. ***

Requirements

Must-haves

Senior Mechanical and Robotics Design Engineer
WHAT YOU’LL BUILD AND OWN • Translating system needs into clear requirements, architectures, and interfaces
Sizing and selecting motors, gearboxes, encoders, bearings, and drivetrain or transmission components
Developing moving mechanisms—from linkages and gear trains to belts, pulleys, and cables
Designing specialized end-effectors
Solving tight packaging challenges by integrating sensors, wiring, PCBs, and related electronics
Creating and managing complex SolidWorks assemblies, configurations, BOMs, and ASME Y14.5 drawings within a PDM-controlled revision workflow.
Designing custom and semi-custom parts for machining, sheet metal, injection molding, 3D printing, and other prototype or production processes
Helping the client make informed decisions by clearly presenting design tradeoffs, technical risks, and recommendations
WHAT YOU’LL BRING • Bachelor’s or master’s degree in Robotics, Mechanical Engineering, or a related engineering discipline
8+ years of applicable product-development experience
Experience with robotic actuation and mechanisms, including motor/transmission selection and kinematic or dynamic analysis
SolidWorks expertise spanning complex assemblies, configurations, production drawings, and PDM-controlled revision workflows
Availability to work on-site at the Seattle-area client location
Design of test fixtures, test instruments, or automated mechanical test equipment
Development of custom actuator or drivetrain solutions, internally or with external vendors
Strong command of GD&T (ASME Y14.5), tolerance analysis, and DFM/DFA, backed by practical knowledge of low-volume and production manufacturing methods
The ability to move confidently between design and the test bench, with hands-on experience in prototype assembly, instrumentation, testing, troubleshooting, and system-level root-cause analysis
Experience integrating complex mechanical designs with electrical, firmware, software, and systems engineering disciplines
COMPENSATION AND BENEFITS • Base salary: $140K–$160K, depending on years of experience and skill sets.
Paid maternity/new parent leave
11 paid holidays
In addition, two types of contractor roles will be considered:
W-2 contractor (hourly employee of Simplexity): • Hourly rate $70 - $95/hr, depending on experience

Nice-to-haves

None flagged.

Application prep

Use the role’s language and application details while tailoring your materials.

Platform: jazzhr
Effort: medium

Benefits

Benefits detected in the listing.

Dental

Vision

401(K)

Pto

Paid Time Off