About
Two engineers. One very specific frustration.
We spent years watching the same pattern play out. An agency wins the pitch. The senior team disappears. A junior gets assigned. The client absorbs the delay, the rework, and the debt. Then the agency moves on to the next one.
404linq exists because we got tired of watching that happen and decided to do something about it. Two engineers, no sales floor, no account managers between you and the people actually writing the code.
We build the full stack of what a product needs to exist on the web and on mobile: landing pages, SaaS web applications, React Native mobile apps, REST and GraphQL APIs, Node.js backends, design systems, component libraries, microfrontend platforms, headless CMS integrations, e-commerce storefronts, and CI/CD pipelines. If it runs in a browser or on a phone, we have built it in production.
We are not generalists who say yes to everything and figure it out later. Every engagement is handled by the engineers who scoped it, not reassigned to whoever is free that week.
When we finish an engagement, the team we leave behind should be faster, not dependent on us. That's the whole point.
By the numbers
- 2025Founded
- 78+Projects delivered
- 42+Clients served
- 100%Repeat engagement rate
How we operate.
Depth over breadth
We specialize in three areas and refuse work outside them. You don't hire a cardiologist to set a broken bone.
Production thinking
We write code for the engineer who maintains it in 6 months, not the demo that needs to ship by Friday.
Honest estimates
We tell you when something will take longer than expected. Surprises belong in birthday parties, not timelines.
Knowledge transfer
When we leave, you're stronger. We document, we teach, we leave behind systems your team can own.
Who we work with.
Scale-up engineering teams
You're growing fast and your frontend architecture hasn't kept pace. You need someone who can make structural improvements without stopping the feature train.
Product teams pre-launch
You have a clear product vision and a short runway. You need production-quality frontend built right the first time, not refactored six months later.
Enterprise modernization
You're migrating from a legacy monolith or fragmented codebase to a modern architecture. You need a team that has done this before, not one learning on your dime.
Next step
Your last agency is still “finalizing the timeline.”
We respond within 24 hours. With an actual answer, not a deck about our process.
No pitch deck. Just context and goals.