01 / Next.js applications
Server, edge, or static - the right one.
App Router, RSC, and edge rendering when it earns its keep. Plain SSG when it's faster. Zero ideology, measured tradeoffs.
Next.js · App Router · RSC · Edge
Web application engineering
Web apps that load faster than your users can lose interest.
We engineer Next.js and React applications that hit sub-second loads, pass AA accessibility, and survive their own success - from internal tools and operator dashboards to marketing sites that actually convert.
0.8s
Median LCP
98+
Lighthouse score
60+
Apps shipped
$ redrhynos audit --route=/dashboard
→ Bundle < 180KB gzip ✓
→ LCP 0.8s · INP 68ms ✓
→ A11y · WCAG 2.2 AA ✓
→ Type-check passing (847 files) ✓
Shipped via edge · cold start 42ms
LCP
0.8s
CLS
0.02
Bounce
−34%
Who we build for
Teams whose web app
Teams whose web app
is the product.
B2B SaaS dashboards
Multi-role admin consoles, customer dashboards, and analytics interfaces that need to feel as fast as Linear and as obvious as Stripe.
Internal & ops tools
Replacement for the Excel sheets, Retool sprawl, and one-off Django admins your operations team has outgrown.
Marketing & growth sites
Conversion-grade Next.js sites with real CMS workflows - measurable lift on signup, demo, and pipeline numbers.
Data & AI products
Streaming dashboards, LLM-powered interfaces, and visualization-heavy apps that stay smooth at 100k rows.
What we ship
Six engineering disciplines,
Six engineering disciplines,
one production-grade frontend.
Performance, accessibility, type safety, and design systems aren't add-ons here. They ship with the first commit.
02 / Complex React SPAs
Dashboards that stay fast at scale.
Virtualized tables, optimistic updates, and state machines that don't fall over when real users hit them with real data.
React · TanStack · Zustand · XState
03 / Performance engineering
Sub-second loads, measured.
Bundle budgets, route-level code splitting, image and font discipline, RUM tracking from day one. LCP under 1.2s on 4G, in writing.
Lighthouse · Web Vitals · RUM · Sentry
04 / Accessibility & i18n
WCAG 2.2 AA, not "we tried."
Keyboard-first design, screen-reader testing, and proper i18n routing. Procurement-blocking accessibility issues, closed before they're flagged.
axe · WCAG 2.2 AA · ARIA · i18next
05 / Design systems
Components your team will reuse.
Headless primitives, tokenized themes, Storybook docs your designers actually open. No more rebuilding the dropdown for the fifth time.
Radix · Tailwind · Storybook · Tokens
06 / Marketing & CMS
Conversion-grade sites, properly authored.
Next.js + headless CMS that marketing can ship from on Friday at 5pm. Tracked, A/B-able, indexable, fast.
Sanity · Contentful · GA4 · GTM
Frontend audit
Request audit
A 1-week paid audit. Performance, a11y, bundle size, maintainability - in writing.
Engineering philosophy
Frontend is half product, half infrastructure.
A web app that loses to a 3G user, fails a screen reader, or breaks on the first 1,000-row table is not "almost done." We treat the things most teams treat as polish as load-bearing from the start.
01
Performance is a budget, not a hope
Every route gets a bundle budget enforced in CI. We block PRs that ship unjustified weight. The result: median LCP of 0.8s on production traffic - not lab numbers.
02
Accessibility is a feature, not a checklist
Keyboard nav, focus rings, reduced-motion paths, and screen-reader testing are part of definition-of-done. We close enterprise procurement gates instead of triggering them.
03
Type safety, end to end
TypeScript strict mode, schemas at every API boundary, generated types from your database and OpenAPI spec. Whole classes of frontend bugs deleted at build time.
04
Design systems your team actually adopts
Tokens, primitives, Storybook docs your designers open and your engineers reach for first. No more parallel button components - and no more weeks of cleanup at year two.
Process
From kickoff to a web app
From kickoff to a web app
your team is proud of.
-
01
Discovery
User flows, perf baseline, a11y audit, scope sign-off - fixed-fee, written deliverable.
-
02
UX & design system
Tokens, primitives, and key flows agreed in Figma - before component code starts.
-
03
Build
Two-week sprints behind feature flags. Storybook updated alongside production code.
-
04
Hardening
Lighthouse CI, axe automation, manual a11y pass, real-device perf testing.
-
05
Launch & iterate
Phased rollout, RUM monitoring, and a 90-day iteration plan handed to your team.
Selected work
View all case studies
Web apps in production.
Cross-Border Logistics
Ship2Truck
2024 · 11 weeks · 3 engineers
Problem
GPS dropouts at border crossings created hours-long visibility gaps for customer-facing SLAs.
Solution
Hybrid checkpoint + signal-based tracking model that infers position from carrier handoffs.
Result
- −96% visibility blackouts at borders
- +12pp SLA attainment quarter-over-quarter
- 2 wks payback period
Web, mobile & operations
AMAID.co
3 phases · Web, iOS & Android
Problem
A polished website that ended in one plain booking form: no live prices, no service choice, and everything after it done by hand.
Solution
A booking website with live pricing, native iOS and Android customer apps, a cleaner app and one admin platform, delivered in three phases.
Result
- < 60 sec booking on one page
- App Store & Play customer apps live
- 1 click cleaner payouts from the admin
Internal Web App
ItchTix
2023 · 9 weeks · 2 engineers + design
Problem
Event organizers were losing 18% of checkouts to a fragile booking flow on shaky venue Wi-Fi.
Solution
Internal web application connecting directly with POS systems, featuring offline-tolerant booking and retry queues.
Result
- +27% checkout completion
- Direct POS system integration
- 110ms P50 booking latency
The stack
The frontend stack we'd still pick in three years.
We don't ship the framework-of-the-month. We ship what your team will be able to hire for, maintain, and trust - and what holds up when the user count goes up by an order of magnitude.
FrameworkNext.js 15
LanguageTypeScript
UIReact 19
StylingTailwind · Radix
StateTanStack · Zustand
FormsReact Hook Form · Zod
CMSSanity · Contentful
TestingPlaywright · Vitest
ObservabilitySentry · Web Vitals
FAQ
Common questions, answered straight.
Don't see yours? Ask directly - we reply within four hours on weekdays.
What does a custom web application cost?
Pricing depends on various factors such as project scope, architecture requirements, feature complexity, and target timeline. We schedule an initial call to discuss your specific requirements and structure a clear, transparent proposal tailored to your project.
How long does a web app build take?
A focused internal tool or marketing site ships in 4-8 weeks. Complex SPAs and dashboards with role-based access, real-time data, and multiple integrations typically take 10-16 weeks. We agree milestones up front and bill per phase.
Do you build in Next.js or as a React SPA?
Both. Next.js when SEO, edge rendering, or marketing performance matter, or when there's a meaningful blend of public and authenticated surfaces. A pure React SPA when the product is purely a logged-in tool. We pick per project - never per fashion.
What kind of performance numbers do you commit to?
Default targets in our SOWs: LCP under 1.2s on simulated 4G, INP under 200ms, CLS under 0.05, Lighthouse 95+ on every key route, and AA accessibility on automated and manual audits. We measure on real-user data, not just lab.
Can you take over an existing web codebase?
Yes - and roughly half our web engagements start this way. We run a 1-week paid frontend audit covering performance, accessibility, bundle size, type safety, and maintainability. You leave with a written remediation plan whether or not you continue with us.
Who owns the code, the design system, and the analytics setup?
You do. Repos, hosting, CMS, analytics, and Storybook all live under your accounts from day one. We collaborate inside your environment - no black boxes, no vendor lock-in, no licensing on the work we deliver.
Guides & insights
Read the blog
Straight answers before you build.
Buyer's guide
How to choose a software development company in India
What to verify, what to ask and the red flags to walk away from.
Engineering
AI-assisted SaaS engineering: governance first
Where AI speeds up delivery, and where it needs guardrails.
Cloud architecture
Cloud cost control belongs in architecture
The design decisions that drive most SaaS cloud bills.
Start a project
Ready to ship a web app users actually want to open?
We'll reply within four business hours with either a discovery proposal or an honest "not us, here's who" referral.
Or book a 30-min frontend review