Mustafa Obaid software engineer
Ten browser-based instruments: a GPU wind tunnel, a spectral sky, a SAT-solving scheduler, a QR code you can scratch and still read, and more. Each one documents its model, how it was validated, and where it stops being accurate.
Selected work · 10 projects
Every project opens on a running example. Live demos run entirely in the browser; source code, tests and a write-up of the model live in each repository.
How does the shape of an object change the air flowing around it — and the force it feels?
Draw any shape into a live lattice-Boltzmann wind tunnel running on the GPU, then measure the drag, lift and vortex shedding it causes.
Why is the sky blue and not violet, why are sunsets red — and why are sunsets on Mars blue?
A spectral sky simulator: drag the sun, switch off the physics one piece at a time, and read the spectrum of any point in the sky.
Where is the sun at any moment — and which way should a solar panel face to catch the most of it?
Track the sun anywhere on Earth, draw the buildings that shade you, and search the whole tilt–azimuth landscape for the best panel orientation.
If you know where a part is held and where it is pushed, what is the stiffest shape you can make?
Place supports and loads and watch a finite-element optimiser grow the stiffest structure for the material you allow — then export it for fabrication.
Can a whole season be scheduled around everyone’s constraints — and if not, which ones are to blame?
A SAT solver written from scratch schedules a full season, proves the minimum number of home/away breaks, and explains impossible constraint sets.
How does a QR code still scan when part of it is scratched, torn or covered by a logo?
Encode, scratch and decode a QR code with an encoder and decoder written from scratch, and watch Reed–Solomon error correction repair the damage.
What does a world look like where space grows faster the farther you go?
Paint one motif and watch it tile the hyperbolic plane in real time; travel through it and measure triangles whose angles add up to less than 180°.
Why does a guitar sound brighter when plucked near the bridge, and a piano’s low notes slightly out of tune?
Pluck, strike and hear a physically modelled stiff string simulated at audio rate, and compare its measured overtones with theory.
Where do earthquakes happen, how deep — and what do their depths reveal about plates diving into the mantle?
Fifty years of USGS earthquakes on a 3D globe, with cross-sections that reveal subducting slabs and statistics for any region you select.
Gravity is your only tool: where do you put a moon, a star or a black hole so the light finds its way home?
Place masses to bend beams of starlight into telescopes. Thirty hand-made levels, an endless mode and a level editor — the one project here made purely for fun.
Before this collection
Front ends and back ends from my studies and internship. The static sites run as they are, the Django app runs inside your browser through WebAssembly, and the .NET API has a project page instead, because it needs a server that GitHub Pages cannot provide.
Live site2024
A recipe-sharing website: browse dishes by diet and cooking time, save favourites, and share your own recipes. Front end built during a full-stack internship.
Live site2024
A landing page for a Jordanian restaurant concept: menu, reviews and table reservations, designed around a hand-drawn mansaf illustration.
Live demo · Django on WebAssembly2024
A Django task manager built during a full-stack internship: a per-user task list with detail, create, edit and delete views, a ModelForm and server-rendered templates on SQLite.
Project page · needs a server2026
A .NET 10 Web API that adds login with ASP.NET Core Identity endpoints: cookies and bearer tokens, role-based authorisation, EF Core migrations on SQLite and an interactive Scalar API reference.
About
Software engineer with a B.Sc. in Software Engineering from Philadelphia University, Jordan, working mostly on the web, with a soft spot for interface design and for making technical ideas easy to see.
The projects above are where those interests meet: each starts from a real question, models it carefully, checks the model against known results, and puts it in an interface you can explore without reading the theory first.
