XRTech · Honolulu, Hawaii
XRTech builds mixed reality training, AI tools, and websites for agencies, companies, and nonprofits. You work directly with the engineer who leads the build.
Looking for federal funding for your business or nonprofit? Funding Discovery
TerrainScoreTraversability scoreWhat XRTech builds
Small enough that the person on your call writes the code, broad enough to cover the headset, the server, and the website.
Scenario training for procedures, conversations, equipment, and places that are expensive, rare, or risky to practice for real. Built in Unity, delivered to a headset or a browser.
Meta Quest · Apple Vision Pro · HoloLens · HTC Vive Focus · WebGL
Start a project like thisSearch, scoring, and workflow tools built on language models, where the reasoning is shown to the person using it. Hosted through an API or run on your own hardware.
Python · Django · FastAPI · OpenAI-compatible APIs · self-hosted models
Start a project like thisCompany sites, product sites, and full web applications with accounts and billing. Design and engineering sit at the same small table, so nothing is lost between the mockup and the launch.
React · Next.js · Supabase · Stripe · Clerk · Cloudflare · Vercel
Start a project like thisDrone photogrammetry that turns real buildings into usable 3D assets, plus embedded electronics, sensors, and 3D printed parts for physical prototypes.
DJI photogrammetry · Blender · Fusion 360 · ESP32 · Arduino · Raspberry Pi
Start a project like thisA reviewed shortlist of the federal funding opportunities your business or nonprofit is actually positioned to pursue, with the reason each one might disqualify you.
Funding Discovery, from $249Client work
Designed and built by XRTech for the clients named under each project.
Joshua Tree Music Festival VR · Björk Vulnicura VR
Stereoscopic 360 sets from six artists in a desert world, built for Meta Quest and Apple Vision Pro and published on the Meta Quest store. For Björk Vulnicura VR, a technical audit followed by production support.
For Gabb, a neuroadaptive VR language platform
Contracted onto a six-person team. XRTech built the full backend, from Google sign-in and student data to per-seat school billing, and worked across the VR cafe and the web app.
For The Goods Social Club, Honolulu
A website that is an endless field of event photos and video you drag to explore. Every image keeps its own shape, and the same photo never shows up twice on one screen.
Earlier work
Projects Constantine led as a lead developer, for brands, clinics, and research labs.
Location-based AR
An iOS tour with three stops locked to their real locations using geospatial anchors, including a photo op with life-sized Clydesdales.
Healthcare XR
An award-winning mixed reality app that keeps imaging and notes in a surgeon’s view, controlled by gaze, gesture, and voice, and more than 25 VR therapy modules for concussion recovery.
Browser 3D configurator
A web configurator with 40+ dock components and 9 deck styles that snap together the way the real hardware does.
Products
01
Practice the conversations you cannot rehearse for real.
RehearsalXR Live puts a 3D character in a 360 degree room. The trainee speaks or types, the character answers in unscripted dialogue with voice and lip sync, an instructor can steer the scene live, and every session ends with a performance report. The Wallet, a branching caregiving scenario, shows the filmed edition, built on real actors. Both run in a browser with no install.
Plan a pilot
02
A portfolio people walk through.
Build a 3D room in the browser, fill it with your work, and publish it as a real website at your own xrfolio.page address. No 3D experience needed. The founder’s own portfolio is built with it.
Have one built for you
03
Federal opportunity search that explains itself.
Watches SAM.gov, Grants.gov, and NSF on a schedule, scores every opportunity against a company profile from 0 to 100, and says in plain English why it fits or does not. It scores over 13,000 federal opportunities on a rolling 12 hour refresh.
Ask for a walkthrough
04
How passable is every square meter of this terrain?
Slope and roughness analysis that scores planetary and analog terrain for rover traversability, with 3D renders and georeferenced maps for mission planning. Runs locally on very large elevation models, with no cloud upload.
Ask about an analysis
Federal
XRTech can take federal work directly as a prime or support a larger team as a subcontractor. A capability statement is available on request.
Who you work with
I’m Constantine Peros. I’ve been building XR since 2021, first as a lead developer at XR studios and now independently through XRTech. Alongside that, I was lead electronics engineer on an autonomous underwater vehicle at the University of Hawaii.
XRTech is how I take that work direct, with a designer on the team for interface and visual work. You get one person accountable from the first call to the launch, and the same person answers when something needs to change later.
Based in
Honolulu, working with clients nationwide