Industrial Designer / CAD Engineer — Silicone Overmold (Fusion / STEP, Consumer–Medical Device) - Contract to Hire
MilkEaze – Silicone Overmold CAD Freelancer Job Description
Job Title
Industrial Designer / CAD Engineer — Silicone Overmold (Fusion / STEP, Consumer–Medical Device)
Company / Project Overview
MilkEaze is an early-stage maternal health device company developing a silicone overmolded wearable used during breastfeeding. The product interfaces directly with the breast and must balance comfort, safety, manufacturability, and electronics integration.
The research foundation, sizing rationale, and geometry strategy are already defined. This role is focused on executing production-ready CAD geometry, not exploratory ideation.
Project Objective
Create production-ready CAD geometry (STEP) for a CAKES-inspired silicone overmold, (https://cakesbody.com/) supporting two initial SKUs, suitable for injection molding and silicone tooling.
Scope of Work
Primary Tasks
Build parametric, spline-based CAD geometry (Fusion 360 preferred)
Create a smooth, continuous dome profile with no curvature discontinuities
Implement:
Inner opening (ID) sizing per SKU
Tapered, feathered edges for comfort
Variable silicone thickness (thin edge → thicker central region)
Design around a curved/conical flex PCB band (no flat shelf required)
Ensure geometry is:
Anatomically comfortable
Injection-mold friendly
Free of sharp edges or pressure concentrators
Deliverables
STEP files (authoritative geometry)
Optional: native Fusion files
Optional: dimensioned drawings for vendor reference
Clear file naming and versioning by SKU
Design Inputs Provided by MilkEaze
Research-backed areola sizing decision matrix
Defined SKU strategy:
SKU 1: ID 38 mm
SKU 2: ID 45 mm
Dome depth target (~19.5 mm)
Silicone thickness envelope (~0.5 mm at edge → ~3.8 mm max)
Flex PCB constraints:
~12 mm radial band
~2.3 mm component height
Curvature allowed / encouraged
Reference inspiration from commercial silicone products
Existing draft STL/STEP files (context only; not final geometry)
Required Skills & Experience
Must Have
Strong experience with Fusion 360 or equivalent parametric CAD tool
Demonstrated work with silicone or soft elastomer products
Comfort with splines, revolved surfaces, offsets, and curvature continuity
Experience delivering STEP files for injection molding
Ability to execute against defined constraints without redesigning product intent
Nice to Have
Medical device, wearable, or consumer health product experience
Experience designing overmolds around electronics
Familiarity with tooling considerations for silicone molding
What This Project Is NOT
Not concept ideation or industrial styling from scratch
Not STL-only or 3D-print-focused work
Not rendering or visualization-centric
Not a branding exercise
Engagement Details
Short-term, clearly scoped project
Paid hourly or fixed-price (to be agreed)
Potential follow-on work as MilkEaze advances toward tooling
Application Instructions
Please include:
2–3 portfolio examples involving:
Silicone or elastomer products
Wearables or anatomical interfaces
Injection-molded consumer products
Your primary CAD tool
A brief description of your experience with spline-based surface modeling
Confirmation you can deliver STEP (not just STL) files
Evaluation Focus
We are prioritizing candidates who demonstrate:
Clear understanding of surface continuity and manufacturable geometry
Experience translating constraints into clean CAD
Practical communication and execution reliability
Apply tot his job
Apply To this Job
Job Title
Industrial Designer / CAD Engineer — Silicone Overmold (Fusion / STEP, Consumer–Medical Device)
Company / Project Overview
MilkEaze is an early-stage maternal health device company developing a silicone overmolded wearable used during breastfeeding. The product interfaces directly with the breast and must balance comfort, safety, manufacturability, and electronics integration.
The research foundation, sizing rationale, and geometry strategy are already defined. This role is focused on executing production-ready CAD geometry, not exploratory ideation.
Project Objective
Create production-ready CAD geometry (STEP) for a CAKES-inspired silicone overmold, (https://cakesbody.com/) supporting two initial SKUs, suitable for injection molding and silicone tooling.
Scope of Work
Primary Tasks
Build parametric, spline-based CAD geometry (Fusion 360 preferred)
Create a smooth, continuous dome profile with no curvature discontinuities
Implement:
Inner opening (ID) sizing per SKU
Tapered, feathered edges for comfort
Variable silicone thickness (thin edge → thicker central region)
Design around a curved/conical flex PCB band (no flat shelf required)
Ensure geometry is:
Anatomically comfortable
Injection-mold friendly
Free of sharp edges or pressure concentrators
Deliverables
STEP files (authoritative geometry)
Optional: native Fusion files
Optional: dimensioned drawings for vendor reference
Clear file naming and versioning by SKU
Design Inputs Provided by MilkEaze
Research-backed areola sizing decision matrix
Defined SKU strategy:
SKU 1: ID 38 mm
SKU 2: ID 45 mm
Dome depth target (~19.5 mm)
Silicone thickness envelope (~0.5 mm at edge → ~3.8 mm max)
Flex PCB constraints:
~12 mm radial band
~2.3 mm component height
Curvature allowed / encouraged
Reference inspiration from commercial silicone products
Existing draft STL/STEP files (context only; not final geometry)
Required Skills & Experience
Must Have
Strong experience with Fusion 360 or equivalent parametric CAD tool
Demonstrated work with silicone or soft elastomer products
Comfort with splines, revolved surfaces, offsets, and curvature continuity
Experience delivering STEP files for injection molding
Ability to execute against defined constraints without redesigning product intent
Nice to Have
Medical device, wearable, or consumer health product experience
Experience designing overmolds around electronics
Familiarity with tooling considerations for silicone molding
What This Project Is NOT
Not concept ideation or industrial styling from scratch
Not STL-only or 3D-print-focused work
Not rendering or visualization-centric
Not a branding exercise
Engagement Details
Short-term, clearly scoped project
Paid hourly or fixed-price (to be agreed)
Potential follow-on work as MilkEaze advances toward tooling
Application Instructions
Please include:
2–3 portfolio examples involving:
Silicone or elastomer products
Wearables or anatomical interfaces
Injection-molded consumer products
Your primary CAD tool
A brief description of your experience with spline-based surface modeling
Confirmation you can deliver STEP (not just STL) files
Evaluation Focus
We are prioritizing candidates who demonstrate:
Clear understanding of surface continuity and manufacturable geometry
Experience translating constraints into clean CAD
Practical communication and execution reliability
Apply tot his job
Apply To this Job