FIXED SCOPEone-off build
Ship a React app, end-to-end.
A defined product, a fixed price, a senior-only team. From RFC to launch in 8–14 weeks.
$15k–$30k
FIXED SCOPE
- Senior engineers only
- Fixed quote in week 1
- Code, infra, runbook — yours
High-performance frontends, shipped in React.
We don't follow tutorials — we ship React in production. Eleven years of it. Component systems, server rendering, edge runtimes, state at scale. The boring decisions that decide whether year three of your app still ships features.
- RSC + App Router
- Sub-1s LCP
- Typed end-to-end
Why Entalogics for React
Four things every React app
actually needs.
Most teams hire React developers and end up with React-shaped problems. We bring the boring decisions that decide whether year three of your app still ships features.
Performance01
Sub-1s LCP, by construction.
Server components, streaming, route-level code splitting, image and font discipline. The fast path is the only path the team can ship.
Architecture02
Component systems, not component soup.
A real design system on top of Radix or shadcn primitives. Tokens, variants, a11y. Five engineers ship one product, not five.
State03
State where it belongs — not everywhere.
URL state for shareables. Server state via the cache. Client state only where it earns its keep. Less Redux, fewer bugs, faster pages.
Type-safety04
TypeScript strict, end to end.
From DB schema to API contract to UI prop. Refactors land in hours instead of weeks — because the compiler does the boring half of code review.
When React, when not
React is a tool.
Not a religion.
An honest decision matrix. We'll tell you on the first call whether this stack is the right call for your problem — or whether your budget is better spent somewhere else.
PICK REACT WHEN
- Product needs a rich, interactive UI (dashboards, editors, real-time)
- You already hire from a large pool — React talent is everywhere
- You want one stack across web + native (RN) + desktop (Electron / Tauri)
- You expect 3+ years of compounding feature work
CONSIDER OTHERS WHEN
- Content-first marketing or docs at huge scale — Astro / 11ty may be lighter
- Tiny brochureware where any framework is overkill — static HTML wins
- A green-field team that already ships Vue / Svelte well — don't fight it
WE SAY NO WHEN
- "Just port jQuery to React because everyone else has." That's not a reason.
- "React for a 4-page brochure site." You don't need us — or React.
- "We need this in a week and the spec is two slides." That ship has sailed.
What we build with React
Six product surfaces.
One quality bar.
The shapes of work we ship most often. Each slots cleanly into your existing stack if you already have one.
- S01
Marketing & growth surfaces
Marketing & growth surfacesHigh-traffic landing, docs, blog. CMS-driven, edge-rendered, instrumented from day one.
NEXT.JSSANITYCONTENTFULVERCEL - S02
SaaS dashboards & admin
SaaS dashboards & adminMulti-tenant UIs, role-aware navigation, table-heavy workflows, real-time updates.
NEXT.JSTRPCTANSTACKRADIX - S03
AI & agent UIs
AI & agent UIsStreaming chat, tool-call inspectors, eval dashboards, long-running task UIs.
VERCEL-AIRSCSHADCN - S04
Commerce storefronts
Commerce storefrontsHeadless PDP/PLP/cart/checkout on Hydrogen or Next. Sub-second mobile LCP.
HYDROGENNEXT.JSALGOLIA - S05
Internal tooling
Internal toolingReplace the spreadsheet. Replace the five spreadsheets. Replace the Notion doc.
NEXT.JSTRPCPRISMATAILWIND - S06
Design systems & libs
Design systems & libsTokens, primitives, MDX docs, Storybook, versioned releases. Your team's component lib.
STORYBOOKRADIXTOKENS-STUDIO
The playbook
Patterns we
ship on repeat.
The architectural patterns that show up on almost every React engagement. Not invention — convention, applied carefully.
P01
Server components first
Default to RSC. Sprinkle client components only where they earn it. Smaller bundles, faster pages, simpler mental model.
P02
Typed contracts
tRPC, Zod, or generated GraphQL types — the API boundary is checked at compile time, not just at runtime.
P03
Cache-first data
TanStack Query / React Query for client. RSC cache + revalidate for server. No request waterfalls, no stale UI.
P04
Design tokens
Color, spacing, type as code, not screenshots. Light/dark, density, brand variants all fall out for free.
P05
Visual + integration tests
Playwright + a couple of well-chosen snapshot tests. Catches regressions humans miss; runs in CI in under five minutes.
P06
Strangler-fig migrations
Bring React into an existing app one route at a time. No flag-day rewrites. The current product keeps shipping.
Signature case
A SaaS dashboard,
route by route..
A B2B platform on a legacy SPA — 4.8s LCP, two-second route transitions, bundle creeping past 1.2 MB. We migrated to a typed Next.js App Router setup in 10 weeks. Without a feature freeze.
Before
p75 LCP 4.8s · bundle 1.2 MB · client state in 11 stores
After
p75 LCP 0.84s · bundle 280 kB gz · server-cache + URL state
- p75 LCP improvement−83%
- route bundle size−77%
- to fully migrated10wk
- shipped regressions0
Engagement shape
Eight to ten weeks
to a measurable ship.
A typical React engagement, end-to-end. We migrate route by route — never flag-day. The current app keeps shipping while we work.
- W01
Audit + RFC
Two senior engineers in the codebase. Bundle analysis, render-blocking inventory, state-management audit. You leave week 1 with a ranked, dollarized RFC.
- W02–03
Foundation + first route
Design tokens, type-safety baseline, one production route migrated end-to-end. Real metrics in your dashboards, not a demo.
- W04–08
Migrate by route, not flag-day
Route by route under feature flag. Old and new live side-by-side. Kill-switch on every cutover. Your roadmap keeps shipping.
- W09+
Cleanup + handoff
Delete the old. Component library docs. Storybook. Visual + integration tests. Runbook handed to your team — or we stay on retainer.
Stack
Tools we
reach for first.
Picked by problem, not by resume. Happy to slot into your stack — but green-field, this is the default.
- FrameworkNext.js 15 (App Router) · React 19 · Remix · Vite
- LanguageTypeScript (strict) · Zod · ESLint + biome
- StylingTailwind · CSS Modules · vanilla-extract · Radix · shadcn/ui
- DatatRPC · TanStack Query · GraphQL · Drizzle · Prisma
- TestingPlaywright · Vitest · React Testing Library · Storybook
- InfraVercel · Cloudflare Workers · AWS · Datadog · Sentry
Engagement
Three ways
to work with us.
No hourly retainer that bills for "thinking time." Pick a lane that matches your stage; everything is fixed-quote or transparently rated.
DEDICATED TEAMmonthly
Hire dedicated React developers.
Embedded engineers in your Slack, your Linear, your standups. A scaled pod of senior React engineers, augmenting your team. Pause, resize, end with 30 days' notice.
$5k / eng / mo
PER ENGINEER
- Same senior bar as fixed-scope
- Embedded in your team
- Founder-direct escalation
ENGAGEMENTcustom
Strategic React partnership.
A long-term partner for product orgs that need both delivery and judgement — design system, performance program, hiring help.
custom
PROCUREMENT-FRIENDLY
- Multi-quarter roadmap
- Architecture & hiring partner
- Procurement-friendly paper
FAQ
Sharp questions,
straight answers.
Framework choices, upgrades, team shape — the questions we get on every discovery call.Most product teams: Next.js App Router. Marketing + commerce that lives at the edge: Next or Remix. Internal tools where SSR doesn't earn its weight: Vite. We'll make the call on day one of discovery and tell you why.
Yes. We upgrade route by route, under feature flag, with the old app still live. No flag-day cutovers. Most upgrades land in 6–10 weeks of senior engineering.
No. RSC is a default, not a religion. Plenty of routes are still client-rendered for good reasons. We pick per route and explain the call.
Yes. No staffing swaps, no offshore relay. The senior engineer who runs the audit writes the production code and owns the runbook.
Yes — or we'll build you one. Tokens, Radix/shadcn primitives, MDX docs, Storybook, versioned releases. Your team can take it forward without us.
Founder-direct
Tell us whatyou're building.
Thirty minutes with the founder. We'll bring a senior React lead, the relevant playbook, and a candid read on whether your problem is one we should take.