クライアントとの進め方
データ志向の設計
問題解決は一度きりのリリースだけでは終わりません。製品のライフサイクル全体—公開後の保守と体験も見ます。リリース後を無視する突貫はしません。
「ローカルファースト」な解決
適切な規模で。長く使うソフトでは、既存を伸ばす方が安いこともよくあります。あなたのソフト、ハード、制約—無理な置き換えはしません。
手を動かすエンジニアリング
直接協業：明確なコミュニケーション、正直なトレードオフ、納品と引き継ぎまでの責任—不透明な人員ローテーションはしません。
Our services
CAD, embedded, and web—built for real systems
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.
About this demo
Layouts for a real engineering practice
Heff.world is a personal site: blog, projects, services, and resume. Example pages here show section patterns you can reuse—copy lives in Keystatic so you can reflavor without hunting through Astro files.
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.
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.
Principal engineer - Web platforms, APIs, and product surfaces with an eye for maintainability.
Embedded & firmware - Bring-up, drivers, and test harnesses for real devices—not just dev boards.
Mechanical / CAD - Assemblies, tolerances, and drawings that survive manufacturing.
Integration & DevOps - CI, releases, and observability so teams trust every deploy.
私について
機械設計・組み込み・Web の交差点で仕事をしています。CAD やハードの立ち上げから、実際に使われるソフトや UI まで。
このサイトは拠点です。記事、プロジェクト、一緒に進める方法。 続きは次をどうぞ： レジュメ, ブログ, LinkedIn, または Instagram（@jheffmedia）.
フィラデルフィア周辺を拠点に。リモート・クラウドファースト、非同期の連携と明確な文書更新。オンサイトは要予約のみ。