$ white-horizon --init
Production-ready software,
built to last.
Senior engineering for teams that need to ship. Over a decade building production systems across fintech, health, and web3 — Go backends, lightweight frontends, and AI that actually reaches production.
Why us
No fluff. Just working software.
Over a decade of production experience. Maintainable, observable, and correct from day one — because we spec before we build.
Spec-driven development
We write the spec before the code. A precise specification means less rework, fewer surprises, and software that does exactly what the business needs — the first time.
Production backends
Observability, structured errors, and reliability built in from the start — not bolted on later.
Lightweight frontends
HTMX over SPA complexity. Fast, maintainable, and no JavaScript framework to fight with.
AI that ships
We integrate AI features tied to measurable ROI — not demos that never reach production.
Services
What we do
Custom Web Applications
We design and build web applications from the ground up — scoped to your needs, not a template. Clean architecture, tested, ready to scale.
API Design & Development
Pragmatic REST APIs, versioned and documented. Built to be consumed by your team and your clients' teams.
AI Features & Integration
Search, classification, generation — integrated into your product with a clear focus on what moves the needle. No hype, no hallucinations in prod.
Performance & Security
Audits, hardening, and optimization. We find what's slow and what's vulnerable before it becomes a problem.
DevOps & Infrastructure
CI/CD, containerization, monitoring, and cloud infrastructure. We handle the platform so your team can focus on the product.
Experience
Our experience
Over a decade of production systems delivered for clients across fintech, health, web3, and mobile — the track record behind White Horizon.
Codex
2024 — nowDecentralized storage
Full-stack work on a decentralized storage marketplace: React front end, Solidity and Nim smart contracts, and a JavaScript SDK to integrate the protocol into web3 apps.
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3E
2020 — 2024Fintech platform
A fintech platform with P2P transfers, QR payments, a marketplace and a donation tool. Node.js backend built from scratch with Stripe, Wise, GoCardless and Fintecture integrations, end-to-end encryption, and an HTMX front end scaling past 100k lines.
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Hisnii
2020Mobile app
An Islamic content app serving 10k+ users, rebuilt on Capacitor with a Node backend and custom native push-notification plugins handling cross-timezone delivery.
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Neli
2019Backend & iOS
Backend and prototype for an iOS app that records and shares video through a device connected to a TV. REST API in Go with MySQL and CI-driven testing.
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DMP
2014 — 2015Health records
France's national shared medical-records system. Migrated storage from GRID to a FILER-based system to cut costs, with rigorous unit testing on a Java/Spring stack.
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OJ Perrin
2016Luxury ecommerce
A bespoke PrestaShop theme for a luxury jeweler, hand-built without a CSS framework for a fast, lightweight front end true to the brand.
View project →How we work
Engagement models
We adapt to your pace — from a scoped specification to long-term ownership.
Fixed fee
Discovery & Spec
Before a line of code, we scope the problem, write the specification, and map the architecture — so the build is precise, not exploratory.
- Problem scoping
- Written specification
- Architecture plan
Weekly delivery
Build Sprint
Focused delivery, one well-specified increment at a time. A senior pair of hands embedded in your team — without a full-time hire.
- Spec'd increments
- Async by default
- Code review included
Ongoing
Long-term Partnership
We own delivery end to end — architecture, code, and operations — and grow with your product over the long run.
- Full delivery ownership
- Architecture decisions
- Ongoing support
On demand
Audit & Rescue
Stalled, broken, or inherited a tangled codebase? We assess fast, stabilize, and hand back a clear path to shipping.
- Rapid assessment
- Prioritized report
- Stabilization plan