Product interfaces
Accessible, responsive interaction built from a maintainable component system.
Product engineering / Web
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Full-stack development
Fast interfaces, dependable backends, and a coherent system your team can continue to own.
What we build
Accessible, responsive interaction built from a maintainable component system.
Clear domain models, secure APIs, queues, and migrations support the product behind the screen.
Performance, SEO, monitoring, CI, and deployment are treated as product work.
The route to production
We map the real workflow, risks, users, and success measure before choosing an implementation.
Working software lands in visible increments, with the hardest assumptions tested first.
We validate against production-shaped data, failure paths, performance, and real use.
Deployment, monitoring, documentation, and a clean handover are part of the build.
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Before you ask
Owning the seams, not listing frameworks. The four that decide whether software holds up are database to application, application to browser, your app to everyone else's, and code to production. Most of what goes wrong in a web product lives in those joins rather than inside any one layer, and the framework list is the least useful line on a CV.
In ways a seeded development database cannot show you. ORMs make N+1 invisible: a list page renders in milliseconds against fifty rows and fires hundreds of queries once a real account has relations. Deep offset pagination makes the database read and discard everything before the page on every request, so late pages get slower forever until it is replaced with keyset pagination on an indexed column. Connection pooling in front of serverless runtimes has its own category of surprise, which is why the deployment target is a question we ask before writing a data layer.
By keeping the token out of reach of page scripts and designing for the awkward moments. Sessions belong in http-only cookies with a domain covering your subdomains and a same-site policy that survives the redirect back from a payment provider, refresh rotation that does not log everyone out when two tabs refresh in the same instant, and a defined behaviour when an access token expires part way through a long upload. The twin failure is caching: a route that reads the logged-in user and then gets cached at the edge serves one account's dashboard to another.
On the assumption that delivery is at-least-once and unordered. Payment providers retry a failing webhook for days, so any handler that is not safe to run twice will eventually charge someone twice. We verify the signature, key on the event ID, and make the write an upsert with a unique constraint. The same discipline applies to any upstream that can answer twice, answer late, or return a 200 with the error in the body.
With a reverse path, and in the right order. A deploy that drops a column while the previous processes are still writing to it takes the site down, so schema changes go out as expand, backfill and contract across separate deploys. Logs record the tenant, the record and the upstream request ID rather than a bare failure line, because the question that matters at two in the morning is how to roll this back — and anyone who cannot answer it is a feature developer with a broader title.
Server components keep client JavaScript small, streaming makes slow queries feel instant, and server actions delete a whole tier of API glue. What it costs is that the App Router caches four separate things at four layers and every default assumes your data never changes. We shipped a pricing banner that showed the old tier for six hours, because a statically rendered route served build-time HTML over a data cache holding the stale number, and support tickets told us before any monitoring did. Caching config gets reviewed like a database schema: deliberate per route, commented, and tested by firing a second request and asserting the value moved.
By sorting every route before any code is written into fully static, dynamic per request, and incrementally revalidated on a timer. That table sets the caching strategy per route, decides where a server action belongs versus a route handler, and forces the auth boundary into view early — which matters because a single authenticated fetch in a shared layout drags a whole subtree dynamic, and that is the seam where most migrations tear.
More often a boundary problem. A client directive is not a per-file switch, it is a boundary: every module imported below it ships to the browser, so a page rendering a static table can download hundreds of kilobytes of JavaScript to do nothing interactive. The shape that holds is interactive components as small leaves, with fetching and composition on the server and serialisable props passed down, so bundle size tracks actual interactivity rather than where someone happened to drop a directive.
The things that make estimates differ, which are almost never features. Integrations, data migration, authentication, and who signs off. Name every system the build has to talk to, and for each say whether documentation exists, whether you control it, and whether a bidder gets sandbox access before signature — that last one alone moves our number by 15 to 25 percent, because it is the difference between reading an integration and testing it. Say how many rows, exported from where, and when someone last looked at the data. Name the single decision-maker and their real turnaround on a review.
Where scope is genuinely known, yes: a rebuild of something that already runs, or an integration against an API we have read end to end. A fixed price on a discovery-shaped problem buys an adversarial relationship instead, where every clarification becomes an argument about whether it was implied in section 4.2 and the incentive flips to building the cheapest thing that survives acceptance testing. For those we push for a short paid discovery that ends in a technical spec, a working spike against the scariest integration, and a number for the build.
From the journal
Start with a paragraph, a Figma, or a Loom.
Build this properly.Reply within one business day · one clear scope · one fixed number