AAA Craft. Startup speed.
Bespoke web, app and game experiences that delight.
What We Do Best
Four disciplines. One obsession with getting it right.
Trusted by teams at
The Founder
20 years building for the web — plus the studios behind Halo, Half-Life, and the Brave browser.
Wise Mountain was founded by Will Waltz, a creative technologist who's been building for the web since he was 14 — when he started his first business and never looked back.
From early webmaster roles to a SoHo ad agency where he learned what makes people click, to AAA game studios and beyond — Will's career has always been about making digital experiences that move people. His skillset has seen him work with companies like Bungie, Microsoft / 343 Industries, Valve, Brave, and Outside Magazine to name a few.
That breadth is Wise Mountain's edge. Web development instincts, marketing know-how, and game-studio craftsmanship — all focused on building software that actually performs for your business.
The result: experiences that feel alive — software that doesn't just work, but genuinely delights the people who use it.
Recent Work
Real projects. Measurable outcomes. Here's what we shipped.
App Development
Composer
A native GPU-first node-based image and video editor built from scratch in Rust — where the graph is the document, every parameter animates over time, and generative AI is a native citizen, not a plugin.
View Case StudyApp Development
Player 1 Social Music Platform
A local-first, lossless listening experience with a recommendation system modeled on the deep knowledge and taste of a real vinyl shop employee.
View Case StudyGame & 3D Co-Development
Halo Infinite
Principal animation and cinematic leadership on one of gaming's most iconic franchises — spanning gameplay pre-visualization, cinematic animation, VFX, and workflow tooling for a team of hundreds.
View Case Study
App Development
Crux
A privacy-first notes app with live transcription, AI-powered formatting, writing assistance, and summarization — all running locally on your device. Nothing leaves the machine.
View Case StudyHow Every Project Runs
No mystery. No chaos. A clear path from idea to launch.
01
Discover
We dig into your business, your users, and what success actually looks like — before touching a single tool.
02
Design
Architecture, interfaces, and user flows — mapped out and validated before we write a line of code.
03
Build
Focused sprints with continuous demos. You see real progress every week, not just status updates.
04
Launch & Grow
We deploy, monitor, and optimize. Then we stick around — because launch is where the real work starts.
What's being said
“Every music app recommends what an algorithm thinks you'll tolerate. We wanted to build something that recommends music the way the best record shop employee would. Someone who actually listens to you, remembers what you love, and puts something unexpected in your hands that you didn't know you needed.”
“I finally know what's actually happening in my own county. The board of supervisors meetings, the farmers markets in Etna, the road closures, it's all in one place. And the local guide AI is scarily good at answering questions about local stuff.”
“I used to lose an entire week per client just chasing down logos, copy, and brand guidelines over email. Intake got all of that in a single 15-minute conversation. My clients actually enjoy the process now, which is something I never thought I'd say about onboarding.”
Your idea deserves better than a template
Tell us what you're building. We'll tell you how we'd approach it — no pitch deck, no pressure.