Web & product engineering
From prototypes to production: TypeScript, Astro, APIs, and reliable delivery for your product and team.
Layout lab
Services section set
Building blocks on Heff.world design tokens. Production copy lives on services, cloud hubs, and Keystatic collections.
stale — Not linked from the main navigation—listed on the site overview for QA.
How I work with clients
Data-oriented design
Problem solving goes beyond shipping once. I look at the full product lifecycle - not just launch, but long-term maintainability and customer experience. No rush jobs that ignore what happens after release.
“Local-first” problem solving
Right-sized solutions: for durable software, it is often cheaper to extend what you already own than to rent someone else’s stack. Your software, your hardware, your constraints - no forced rip-and-replace.
Hands-on engineering
Direct collaboration: you get clear communication, honest tradeoffs, and ownership through delivery and handoff - not a rotating cast or opaque process.
Our services
CAD, embedded, and web - built for real systems
Embedded & firmware
Firmware, embedded Linux, sensors, and interfaces - practical engineering for reliable systems.
CAD & mechanical design
Solid modeling, CAD workflows, and practical design for prototypes and small-scale production.
Managed hosting
Deployment through fully managed operations - pick the tier that matches how hands-on you want to be, across common hosting models.
3D models
Browse interactive 3D previews. Custom parametric modeling is scoped separately.
3D scanning
Structured-light and photogrammetry workflows to bring physical parts into CAD and simulation.
CFD
Flow and thermal sketches for ducts, enclosures, and components - scoped to actionable design feedback.
FEA
Static and modal sketches for brackets, spools, and load-bearing parts - tied to material and manufacturing choices.
3D printing
FDM and resin printing scoped to material, tolerance, and finish requirements.
How I work
Owner-led engineering, end to end
You work directly with me - no account team and no bait-and-switch bench. I scope web, firmware, and mechanical work with clear milestones, demos, and docs your team can maintain after handoff.
100%
Owner-led delivery
1
Primary contact
5★
Communication bar
What I can help with
Web & product engineering
From prototypes to production: TypeScript, Astro, APIs, and reliable delivery for your product and team.
Embedded & firmware
Firmware, embedded Linux, sensors, and interfaces - practical engineering for reliable systems.
CAD & mechanical design
Solid modeling, CAD workflows, and practical design for prototypes and small-scale production.
Managed hosting
Deployment through fully managed operations - pick the tier that matches how hands-on you want to be, across common hosting models.
3D models
Browse interactive 3D previews. Custom parametric modeling is scoped separately.
3D scanning
Structured-light and photogrammetry workflows to bring physical parts into CAD and simulation.
CFD
Flow and thermal sketches for ducts, enclosures, and components - scoped to actionable design feedback.
FEA
Static and modal sketches for brackets, spools, and load-bearing parts - tied to material and manufacturing choices.
3D printing
FDM and resin printing scoped to material, tolerance, and finish requirements.
10+
Years building products
40+
Shipped milestones
3
Disciplines in one loop
∞
Coffee-fueled debug sessions
Who you work with
Engineering across web, firmware, and hardware
These layouts are demos, but the intent matches how I work: clear ownership, tight feedback loops, and deliverables you can ship - not slideware. Reach out through the real contact routes on this site when you are ready to talk scope.
About me
Working at the intersection of mechanical design, embedded systems, and the web, that mix shows up in my projects: from CAD and hardware bring-up to shipping usable software and interfaces people actually enjoy.
This site is my home base on the internet, writing, projects, and ways to work together. If you want the full story, see the resume, blog, LinkedIn, or Instagram (@jheffmedia).
Based around Philadelphia. Available for remote work with cloud-first delivery, async collaboration, and crisp written updates. On-site is by appointment only.
