We build software
that ships.
TEOS IT is a software studio crafting web, mobile and AI products — with sharp UI/UX and rock-solid backends. From first idea to launch.
What we do
One studio for the whole build.
From first sketch to production — design, engineering and AI under one roof.
Web Development
Fast, scalable web apps and sites built on modern stacks like Next.js and React.
Mobile Development
Native-feeling iOS & Android apps from a single, maintainable codebase.
AI Development
LLM-powered features, agents and automations wired into your product.
UI/UX Design
Interfaces people love — research, design systems and pixel-perfect handoff.
Backend Development
APIs, databases and infrastructure engineered for reliability and scale.
Outsourcing
Dedicated engineers and teams that plug straight into your workflow.
Case studies
Work we're proud of.
Real products, shipped to real users — designed, built and launched by our team.
Bukiraj
A booking platform that lets businesses take reservations online — built end to end with a fast web app and a clean, mobile-first booking flow.
Check Solar
A solar comparison platform that turns a complex buying decision into five minutes of work — homeowners enter a few details and instantly compare offers from vetted local installers, with transparent pricing and zero sales pressure.
Amplitude
A finance & lifestyle mobile app, designed and built end to end for iOS — a bold, fluid interface and a frictionless onboarding flow that makes managing money feel effortless.
Testimonials
Trusted by the teams we build with.
We partner closely with founders and product teams — here's what it's like to work with us.
TEOS IT took our app from a rough concept to a polished product in the stores faster than we thought possible. They didn't just execute tickets — they pushed back on the right things, owned the architecture, and treated every screen like it was their own product. The build quality and attention to detail are exactly what you want from a partner.
Maximilian Frederic Jacob
CEO
We needed a fast, trustworthy platform that turns a complicated decision into five minutes of work for the user. TEOS IT delivered a clean, performant web app and stayed pragmatic about scope the whole way through. Communication was sharp, the code is solid, and they shipped on time.
Tim Fux
CTO
How we work
From idea to launch — without the chaos.
A simple, transparent process. You always know what we're doing and what's next.
Discovery
We dig into your goals, users and constraints — then map the fastest path to a product that works.
Design
Wireframes to polished UI. We design the flows and the system, and validate before a line of code.
Build
Engineering in tight loops — clean code, real previews every week, no black boxes.
Ship
We launch, measure and iterate. Your product goes live and keeps getting better.
About
Small on purpose, built by hand.
TEOS IT is a focused studio — you work directly with the person building your product, not a sales pipeline.
Petro Arva
Founder & Software EngineerI'm a software engineer who started TEOS IT to build products I'd actually want to use. I work hands-on with every client — from the first idea to launch — and treat your project like it's my own.
You work with the founder
No hand-offs to juniors or unknown subcontractors. The person you talk to is the person who builds.
Ship in weeks, not months
Tight iterations and weekly previews mean you see real progress fast — and launch sooner.
You own everything
Code, design files and infrastructure are yours from day one. No lock-in, no surprises.
Direct, transparent comms
One shared channel, clear scope and honest timelines. You always know where things stand.
Our toolbox
The tech we build with.
A modern, battle-tested stack — drag the cloud to spin it.
Take a shot
Hit the bullseye with our triangles.
Three throws. Flick a triangle at the target and rack up points — yes, it's just for fun.
Score
0
Throws
Pull a triangle back and release to launch it.
Get in touch
Let's build something great.
Tell us what you're working on. Whether it's a fresh idea or an existing product, we'll help you ship it.
- Write us directly at contact@teosit.com
- We reply within 1–2 business days
- Free, no-pressure project consultation