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My name is Henrik Wilhelm Sissener

I'm a frontend developer specializing in React and Svelte. In my free time, I enjoy drawing and dabbling in game development.

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Sealift Systems - Project image

Sealift Systems

Completed Started September 1, 2016 Ended February 1, 2019 0 Views0 Likes

Sealift Systems was a two-and-a-half year build — a maritime logistics platform designed to coordinate sea rescue and cargo operations across distributed fleets. I came on as the lead front-end developer and ended up owning a significant chunk of the back-end too. This was 2016, so the stack was exactly what you'd expect: HTML, CSS, PHP, and vanilla JavaScript. No frameworks, no shortcuts — just clean, deliberate code.

The core of the work was building a real-time vessel tracking dashboard and an operations management interface that field coordinators could actually use under pressure. PHP handled the server-side logic and data layer, while JavaScript drove the dynamic UI — live status updates, interactive maps, form-heavy workflows. I wrote a lot of CSS from scratch, building a component system before that was even a common term.

By the time we wrapped in early 2019, the platform was handling live operational data for active rescue coordination. It's one of those projects where the constraints — the era, the stack, the stakes — pushed me to write better, leaner code than I might have otherwise. I'm proud of what we shipped.