Speed
Ship in weeks, not quarters
AI-assisted research, specs, and code mean the first working version lands early, then we iterate on real feedback.
We build mobile apps web apps AI agents internal tools
Hadeys is a software development company. We design, build, and ship products, and AI works next to us the whole way so it lands sooner, not sloppier.
We build with
- code review by a human
- automated test suite
- CI pipeline green
- released to the store
Quality
Every line has an owner
AI writes fast, people decide. Reviews, tests, and pipelines stay in human hands from the first commit.
your.app
Ownership
The product stays yours
Your repo, your cloud, your data. We hand over everything and stay around only as long as you need us.
Services
Everything between the idea and the store listing
01
Mobile apps
Native and cross-platform apps for iOS and Android.
02
Web apps
Fast, modern web applications and sites.
03
Product design
UI/UX from wireframes to a pixel-perfect interface.
04
AI engineering
Assistants, RAG search, and AI features inside your product.
05
AI agents
Agents and workflows that take routine work off your team.
06
Data & integrations
APIs, pipelines, and the third-party plumbing.
07
DevOps
CI/CD, cloud infrastructure, monitoring, and scaling.
08
QA & testing
Manual and automated testing, all the way into CI.
09
Support
Updates, monitoring, and new features after release.
AI, the useful kind
AI should help you build things, not just talk about them
Claude, Cursor, Codex, Gemini, and Copilot sit in our editors every day. We also put AI inside the products we deliver: assistants, semantic search, content generation, and agents that quietly do the boring work.
- Claude
- Cursor
- OpenAI Codex
- Gemini
- GitHub Copilot
- Windsurf
- LangChain
- Hugging Face
- Ollama
- n8n
- Perplexity
- v0
Stack
Boring, proven tools. On purpose.
We pick what we can run in production for years, not what trended last month.
Mobile
- Swift
- Kotlin
- React Native
- Expo
Web
- TypeScript
- JavaScript
- React
- Next.js
Backend
- Java
- Node.js
- Python
- PostgreSQL
DevOps & Cloud
- Kubernetes
- Azure
- Docker
- Jenkins
- Semaphore
- GitHub Actions
- Terraform
- AWS
- Vercel
QA & Testing
- pytest
- Playwright
- Cypress
- Selenium
- Jest
- Postman
Tools
- Git
- GitHub
- GitLab
- Bitbucket
- Jira
- Figma
Work
Things we made
LearnWord
An app for learning English words. Flashcards with translations, a few minutes of practice a day, and progress you can actually see.
Open LearnWord
Available on the web · iOS app coming soon
LearnWord
Day 12
New word
serendipity
/ˌser.ənˈdɪp.ə.ti/
Show translation
2 of 4 today
About
Hadeys is a software development company based in Kyiv, Ukraine. We deliver full-cycle development of mobile and web applications, covering product strategy, design, AI engineering, development, release, and support. Alongside client work we build our own products.
Contact
Tell us what you want built
Write to us and you will get a real answer from an engineer within one business day.
hello@hadeys.com