Principal Mechanical Engineer / Systems Engineer

Digitailor; Cambridge (MA); On-site; USD 140,000 - 190,000; Full time

Job summary

Halo is a technology company building the future of haircare hardware with HaloBraid, a braid-assist device used by professional stylists. You will understand the HaloBraid machine architecture and own a subassembly from 3D CAD through pilot and toward production-ready parts.

You will mentor engineers, review designs to reduce complexity, and establish robust test frameworks, applying DFM/DFA and preparing for pilot builds, supplier engagement, and handoff to contract manufacturers.

Qualifications

• 10+ years in electromechanical product development.
• Strong mechanical design judgment and system-level thinking.
• Experience taking designs from prototype to production.
• Fluency with tolerances, control drawings, and manufacturability.

Responsibilities

• Understand HaloBraid and its architecture; own a subassembly from 3D CAD through pilot and toward production-ready parts.
• Review design work across the team to reduce complexity and raise design standards.
• Build robust test/experiment/decision frameworks; apply DFM/DFA judgment for pilot builds and supplier handoff to contract manufacturers.
• Mentor engineers, establish practical best practices and standards, and strengthen the engineering culture.
• Collaborate with electrical, industrial design, manufacturing, and suppliers.

Skills

Electromechanical design

Mechanical architecture

CAD review

DFM/DFA

Prototype to production

Mentoring engineers

Supplier engagement

Robotics experience

Mechatronics

Job description

Halo is a technology company building the future of haircare for all textures. We create category-defining products built for the complexities others overlook. We're building HaloBraid , the world's first braid-assist device. It helps stylists finish braids five times faster, flawlessly and gently. This is one of the hardest unsolved problems in robotics, applied to a $270B salon services industry, and integrating computer vision, compliant fiber manipulation, and novel mechanisms. Billions of hours are spent braiding hair each year; HaloBraid gives that time back. We're moving from R&D into deployment with salons, and we're backed by leading investors. You will Understand the full HaloBraid machine and its architecture: identify design, tolerance, assembly, serviceability, and dependency issues, and drive them to resolution. Personally deliver IC engineering: own a subassembly from 3D CAD through pilot and toward production-ready parts. Review design work across the team to reduce complexity and raise design standards. Build strong test/experiment/decision frameworks Apply DFM/DFA judgment and prepare for pilot builds, supplier engagement, and contract-manufacturer handoff. Mentor engineers, set practical best practices and standards, and strengthen our engineering culture without becoming process-heavy. Collaborate with electrical, industrial design, manufacturing, and suppliers. You have 10+ years, or equivalent depth, in electromechanical product development Strong mechanical architecture and product-design judgment: you can see the whole system and its tradeoffs. A track record of delivering designs that made it through pilot or production. An ability to review CAD and identify design, assembly, and serviceability issues. A strong experiment / test / decision-making framework Fluency with control drawings, tolerances, assemblies, and manufacturability. Taken a product or a major subsystem from prototype toward production. A desire to mentor other engineers without adding bureaucracy Desired skills (optional) BOM ownership Supplier searches with technical and cost recommendations: CM / supplier interface experience. Product roadmap input Production-transfer experience. People-management experience. Robotics or mechatronics experience. Production embedded / electrical interface awareness.

Who You Are

User-centric. You want to build things people actually use and love. Low ego, adaptable, collaborative. A fast, honest iterator. You learn through testing and user feedback, and you follow through on what you suggest. Driven by the mission. A hard, unsolved robotics problem that gives millions of people their time back is your idea of a good challenge. A clear communicator.

Benefits of Working With Us

• 100% medical premium coverage, comprehensive dental and vision benefits.
• Meaningful equity.
• 12 company holidays and unlimited PTO.
• Free parking onsite.

Onsite Work This is an onsite position at our office/lab in Cambridge, MA. You must have authorization to work in the US.