<p><strong>The Role</strong></p> <p>LettrLabs is reinventing direct mail. With our own in-house handwriting robotics, we’re challenging traditional direct mail manufacturing from the ground up. We’re looking for a Senior Mechanical Design Engineer to own the mechanical design and development of complex electromechanical systems from concept through production — and to be instrumental in building our next-generation production automation platform.</p> <p>You’ll take projects end-to-end: translating requirements into robust, manufacturable designs, validating them through analysis and prototyping, and seeing them through to commissioning. You’ll work closely with cross-functional partners in electrical, controls, manufacturing, and quality, as well as external vendors and suppliers. This is a hands-on, high-ownership position for an engineer who is equally comfortable at a whiteboard, in CAD, and on the shop floor.</p> <p> </p> <p><strong>Why Join Us</strong></p> <ul> <li>Design the machines that make our product possible — you’re not supporting a production line, you’re building it</li> <li>High ownership from day one: end-to-end accountability for complete mechanical systems, not isolated components</li> <li>Work alongside a team of engineers who bring the same grit and ownership mindset to every problem</li> <li>Real exposure to leadership and cross-functional partners — your design decisions are visible and matter</li> <li>A culture of grit, perseverance, and performance that values engineers who get energized by hard problems</li> <li>Competitive compensation, growing benefits, and a culture that rewards initiative.</li> </ul> <p> </p> <p><strong>What You Will Own</strong></p> <ul> <li>Own entire mechanical systems and sub-systems across the full product lifecycle — requirements generation, concept development, detailed design, analysis, prototyping, validation, and commissioning</li> <li>Design precision motion systems incorporating belts, pulleys, gears, bearings, shafts, and related drivetrain components</li> <li>Develop sheet metal components and assemblies with a strong understanding of manufacturing processes and tolerances</li> <li>Apply DFM/DFA principles to drive cost, quality, and reliability across every design decision</li> <li>Perform engineering analysis using hand calculations and FEA to size components, validate designs, and de-risk failure modes</li> <li>Select appropriate materials and finishes based on structural, thermal, environmental, and cost requirements</li> <li>Build and test prototypes rapidly to validate concepts and iterate quickly toward production-ready designs</li> <li>Create and maintain detailed engineering drawings, GD&T, BOMs, and design documentation</li> <li>Mentor junior engineers and contribute to design reviews and best practices</li> </ul> <p> </p> <p><strong>What Success Looks Like</strong></p> <ul> <li>Mechanical systems delivered on time from requirements through commissioning with minimal rework</li> <li>Designs that pass validation the first time — rigorous analysis and prototyping reduce costly late-stage surprises</li> <li>Cross-functional partners describe you as someone who makes integration easier, not harder</li> <li>Junior engineers improve measurably through your mentorship and design review participation</li> </ul> <p> </p> <p><strong>What You Bring</strong></p> <ul> <li>5+ years of experience in mechanical design and product development</li> <li>Deep, hands-on experience with motion systems and their core components — belts, pulleys, gears, bearings, and shafts</li> <li>Working expertise in sheet metal design and the associated manufacturing methods (bending, CNC machining, laser cutting, waterjet, additive manufacturing)</li> <li>Strong command of Design for Manufacturing and Design for Assembly (DFM/DFA)</li> <li>Strong fundamentals in mechanical engineering — statics, dynamics, mechanics of materials, tolerancing</li> <li>Proven experience with FEA and hand calculations to drive and validate design decisions</li> <li>A track record of owning complete mechanical systems and sub-systems from requirements through commissioning</li> <li>Experience working directly with vendors and suppliers throughout design and manufacturing</li> <li>Bachelor’s degree in Mechanical Engineering or a related field</li> </ul> <p><strong>Nice to Haves</strong></p> <ul> <li>Master’s degree in Mechanical Engineering or a related discipline</li> <li>Experience in robotics, automation, or industrial machinery</li> <li>Proficiency with SolidWorks, NX, or similar CAD platforms and PDM/PLM systems</li> <li>Familiarity with GD&T (ASME Y14.5) and tolerance stack-up analysis</li> </ul> <h3 data-local-id="4827e249daca" data-prosemirror-content-type="node" data-prosemirror-node-name="heading" data-prosemirror-node-block="true" data-pm-slice="1 3 []">LettrLabs USA: $150,000 USD - $180,000 USD</h3> <h3 data-local-id="cb100d10c3b5" data-prosemirror-content-type="node" data-prosemirror-node-name="heading" data-prosemirror-node-block="true">Benefits</h3> <ul class="ak-ul" data-local-id="2f4b7ceb-77ac-4487-ba9b-6b759531e3f3" data-prosemirror-content-type="node" data-prosemirror-node-name="bulletList" data-prosemirror-node-block="true"> <li data-local-id="5f8a8