Custom software development
Web applications, SaaS platforms, APIs and internal tools — greenfield or extending what you have.
Engineering studio · Belgrade · remote
The sky is not the limit.
We build software that keeps working for years.
From the first sketch to production in the cloud: web and mobile applications, high-performance systems code, AI integrations and infrastructure that looks after itself. No middlemen — you talk directly to the engineers who write the code.
- years of engineering experience
- 20+
- layers between you and the code
- 0
- typical response time
- 24h
The clouds in the background are rendered live — volumetric raymarching in a WebGPU (or WebGL2) shader.
Services
What we do
We cover the whole software lifecycle — from architecture and development to launch, monitoring and maintenance.
Cloud and DevOps
Azure infrastructure, containers, CI/CD, monitoring and cost optimisation.
Systems and native programming
C, C++ and Rust — performance, multimedia, GPU, embedded devices and close-to-the-metal code.
AI and LLM integration
Agents, document automation, search over your own data and in-app assistants.
Consulting and architecture
Technical due diligence, code review, technology selection and migration planning.
Regulated and multilingual domains
Software for legal, financial and compliance processes — with audit trails and multiple languages and scripts.
US patent co-inventors
GIS and geospatial data
Interactive maps and spatial analysis over large volumes of data arriving live.
Financial markets
User interfaces for financial markets
Desktop and web applications for financial market professionals — dense screens with data that changes by the second.
How we work
A clear process, no surprises
- 01
Conversation
We listen to the problem, not a feature list. We ask what changes in your business once the solution is live.
- 02
Proposal and estimate
A written proposal with scope, architecture, timeline and price. Phased, so you see the first value quickly.
- 03
Iterative delivery
Short cycles, a working version available from the first week, transparent progress tracking.
- 04
Launch and support
Production with monitoring, documentation and knowledge hand-over. We stay with you for as long as you need.
Technology
A modern stack, proven choices
We choose tools that will still exist in five years — and that your next team can take over.
- TypeScript
- React
- Node.js
- Enterprise Java
- Spring
- Swing / JavaFX
- Electron
- AG Grid
- Highcharts
- Astro
- PostgreSQL
- Oracle / PL/SQL
- GIS
- GeoJSON
- PostGIS
- Leaflet
- MapLibre
- Python
- Rust
- C / C++
- WebGPU
- Docker
- Microsoft Azure
- GitHub Actions
- Playwright
- Linux
- WebAssembly
- LLM / agents
- Prisma
- Vite
- Microcontrollers (ESP32)
Why SkyPlain
Small team, senior experience
- Directly with engineers
- No project managers translating in between. The person you talk to is the person writing the code.
- Quality by default
- Automated tests, code review, security standards and CI/CD are not an add-on — they are part of every proposal.
- You own everything
- Code, infrastructure and documentation are yours from day one. No lock-in to us.
- Honest estimates
- We will also tell you when something should not be built — or when an off-the-shelf product beats custom code.
Have a problem software could solve?
Describe it in a few sentences. We reply within one business day with a suggested next step — no strings attached.
Write to us