Engineering tools
that help you build and ship.

Hardware Interview Scoring

Score every hardware candidate against the same weighted rubric, compare them side-by-side with radar charts, and generate Greenhouse-ready writeups with one click.

Engineering Material Selection

Describe your part and process — get five real vendor grades with honest data, opinionated advice, and visual comparison. No hallucinated properties.

The Most Beautiful CAD Viewer

Import STEP, IGES, STL, OBJ, SLDPRT — inspect, measure, and analyze — all in the browser.

Product Design Interview Prep

170 real interview questions across 7 rounds, calibrated to 4 seniority levels. Built from decades of shipping hardware at the world’s best companies.

Portfolio Builder for Engineers

A beautiful, opinionated portfolio for engineers and designers — showcase your projects, prototypes, and process without wrangling a website.

ATS Resume Optimizer

Paste your resume and get concrete, section-by-section feedback tuned for engineering and hardware roles. No fluff, just fixes.

CNC Design for Manufacturability

Upload a STEP file, get instant DFM feedback from 100+ machinist-grade rules. 3D visualization, 5-axis impact scoring, and PDF reports.

Stack-Up Analysis Calculator

Worst-case, RSS, and 1M-iteration Monte Carlo. Sensitivity analysis, tolerance allocation, GD&T support, and PDF/XLSX export.

Expert 3D Print Settings

Describe what you’re building and get optimal slicer settings for Bambu Lab printers — material, supports, nozzle, and 50+ parameters as ready-to-import JSON.