It was a complex project. Even though it was hard to understand the codebase at the beginning, the partner quickly analyzed it and helped set clear priorities, so we were able to keep things on track without delays. What stood out most was that when issues came up, they didn’t just give a quick fix. They explained multiple options and the reasoning behind each one. Communication was clear, and they regularly shared detailed progress updates, which made collaboration very smooth. If I had to point out one downside, it would be that when the schedule was tight, they sometimes aimed for a bit more perfection than necessary. However, the upside was that the final quality was excellent. Overall, they were responsible, highly professional, and I’d definitely want to work with them again on the next project.
Custom Software & AI Development

Bring a new product to market, improve an existing platform, or add AI to your workflow. SquareOne brings planning, design, engineering, and ongoing support together for clients worldwide.
What Our Clients Say
























Built to last. Shipped worldwide.
Selected work
Three projects that show how we take responsibility for delivery, from first plan to live operation.
- / 03Hyundai Motor · N Virtual Cup
Global Platform for Hyundai Motor’s Flagship Esports Competition
- Challenge
- A global virtual racing competition needed one platform for live race results, rankings, driver data, and event content across China, Korea, Europe, and North America.
- What we owned
- Platform design, React frontend, C# and Go backends, and the Assetto Corsa race-data integration.
- Delivery
- Delivered by a 13-person team: project manager, solution architect, designers, engineers, DevOps, and QA.
- / 03Korea Investment & Securities
Multi-model AI Pipeline for Complex Financial Documents
- Challenge
- Complex English financial reports had to become editable Korean documents without losing tables, charts, or layout.
- What we owned
- A multi-model pipeline for document segmentation, finance-aware translation, and layout reconstruction.
- Delivery
- Output is editable DOCX that keeps nested tables and multi-column layouts, not flat extracted text.
- / 03Jeonbuk Hyundai Motors FC
Official Football Club Mobile Application
- Challenge
- A professional K League club needed ticketing, memberships, live match updates, and fan services in one official app.
- What we owned
- Hybrid iOS and Android app (Ionic React), Java and Spring Boot backend, and the admin system.
- Delivery
- Includes identity verification, barcode and QR tickets, push alerts, and migration of existing members.
How we help
Most clients come to us in one of four situations. Pick the one closest to yours.
“We need a new product.”
Launch a new product
Planning, design, web and mobile development, backend systems, integrations, and launch, delivered by one team.
Discuss this“Our existing product needs help.”
Take over or improve an existing product
Codebase assessment, takeover from a previous developer, stabilization, modernization, and new features.
Discuss this“We want AI in a real business workflow.”
Put AI to work in your operations
Document processing, workflow automation, and AI integrations built to run in production, not just as a demo.
Discuss this“We need a team after launch.”
Keep a team after launch
Maintenance, monitoring, improvements, and ongoing development under an agreed scope.
Discuss thisOfficial partner
Stats Perform — the global sports data and AI company — is an official partner of Squareone. A partnership built on shipping and running products at world-class standards.
Why Squareone
Practical AI
We focus on AI that solves real business problems. That means building tools and systems that fit real workflows, support real teams, and create value beyond the prototype stage.
Tailored Solutions
Every business has different goals, systems, and constraints. We build software around what each client actually needs, not around one-size-fits-all templates.
Strong Execution
Good ideas only matter if they are delivered well. We put equal emphasis on planning, engineering quality, usability, and long-term maintainability.
Industry Understanding
We bring real domain knowledge across AI, finance, crypto, gaming, ecommerce, sports, and other fast-moving sectors. That helps us make better decisions and build solutions grounded in how each business actually works.
Built to Scale
Whether we are building for web, mobile, AI, or emerging technologies, we focus on creating products that are scalable, reliable, and ready to evolve over time.
Long-Term Partnership
We aim to be more than a delivery partner. We take ownership, communicate clearly, and build with the care needed to support lasting products and long-term relationships.
Tools we use
AI Engineering
(01)Claude / GPT / Gemini / Llama / LangGraph / MCP / LlamaIndex / Langfuse / Moshi / LiveKit / Cartesia / ElevenLabs / Whisper / SAM 2 / YOLO / FLUX / Sora / Docling / ColPali / pgvector / vLLM / Unsloth
Mobile
(02)React Native / Expo / SwiftUI / Jetpack Compose / Kotlin Multiplatform / Flutter
Data and Infrastructure
(03)PostgreSQL / MySQL / MongoDB / Clickhouse / Redis / Elasticsearch / RabbitMQ / Kafka
Cloud and DevOps
(04)Amazon Web Services / Docker / Kubernetes / Terraform / GitHub Actions
Blockchain / Web3
(05)Solidity / Rust / Anchor / Hardhat / Foundry / Ethers.js / Viem / Solana Web3.js / SPL Token / Metaplex / OpenZeppelin / ERC-20 / ERC-721 / ERC-1155 / ERC-165 / ERC-173 / ERC-2981 / ERC-4337
Gaming / Real-Time
(06)Unity / Unreal Engine / Godot / Three.js / React Three Fiber / WebGPU / PixiJS / WebRTC / Colyseus
Front-End
(07)React / Next.js / TanStack / TypeScript / Vite / Tailwind CSS v4 / shadcn/ui / Motion
Back-End
(08)Python (FastAPI) / Node.js / C# / Go / Rust (Axum) / gRPC / GraphQL / tRPC
Design
(09)Figma / Framer / Spline / Blender / After Effects / Midjourney

