Web Application Development Company
We build software
people
actually
want to use.
From pixel-perfect interfaces to robust backend systems XFactr.AI engineers web and mobile applications that perform, scale, and hold up under real-world load.
Our Decade long experience, validated in numbers
AI Agent Live in Production
PO processing Time Reduction
Added Head Count as Scale
Customer Satisfaction
Agents Scaled from First Diployment
↑ 12.4%
↑ 8.1%
↑ 21%
LCP 2.1s ✓
INP 142ms ✓
CLS 0.05 ✓
User Service
Node.js + JWT
REST · GraphQL
Order Service
FastAPI
Kafka Events
Notify Service
Go
gRPC Internal
APIs that handle production load without drama.
One codebase. iOS and Android. No shortcuts.
code
Trusted by Leading Enterprises
Our engineering process,made plain.
No black boxes. No surprises at handover.
Software built the way software should be built.
- Requirements workshop
- System architecture document
- API contract definition
- Architecture Decision Records
- Timeline & milestone planning
- Sprint planning & review
- Peer-reviewed pull requests
- Preview deployments for every PR
- Weekly stakeholder demos
- Release changelog
- Vitest unit & integration tests
- Playwright E2E testing
- Lighthouse CI quality gate
- axe accessibility validation
- Strict TypeScript checks
- Complete runbook documentation
- Developer onboarding session
- Monitoring & alert configuration
- 30-day hypercare support
- Optional ongoing maintenance
Technology we use in production.
Every tool on this list is in production
across multiple client projects
not a Wishlist.
Edge Foundry capabilities
production-proven edge capabilities.
Vertical deployments
Same stack. Four physical worlds.
<2.5s
Largest Contentful Paint on every production deployment
Streaming SSR · React Server Components · Edge CDN
<200ms
Interaction to Next Paint the metric that measures how responsive your app feels
React 19 concurrent features · optimistic updates
100%
TypeScript coverage across every codebase zero any, zero implicit
Strict mode · Zod runtime validation throughout
iOS + Android
One React Native codebase. Two stores. Shared logic, shared tests.
CI/CD
Every pull request runs the full test suite and deploys a preview environment
2 weeks
Sprint cadence with working software shipped to staging at every milestone
Where these capabilities apply
Edge-to-Cloud AI across our platforms and services.
Everything you need to know
XFactr builds frontend with React 19 and Next.js 15 using the App Router, streaming server-side rendering, and React Server Components, paired with TypeScript, Tailwind CSS, and Radix UI. On the backend, it uses Node.js for high-concurrency workloads, FastAPI for compute-intensive Python services, and Go where raw throughput is the priority, with REST and GraphQL APIs designed contract-first.
Every API ships with OpenAPI documentation, rate limiting, and authentication built in, rather than added after launch.
Performance is built into the architecture from day one through streaming SSR, edge rendering, image optimization, and route-level code splitting, rather than optimized after launch. Delivery is automated with GitHub Actions CI/CD, Docker, Kubernetes, and Terraform infrastructure-as-code, with every pull request running the full test suite and deploying to a preview environment before anything reaches production.
Typical production targets include a Largest Contentful Paint under 2.5 seconds and Interaction to Next Paint under 200ms.
Yes — XFactr builds cross-platform mobile applications using React Native with Expo, sharing business logic, navigation, and API clients between the mobile app and the web product from a single codebase. Where frame-perfect native UI is required instead, Flutter is used, and both approaches ship to both app stores with push notifications, deep linking, and the same automated test suite used on web.
The process runs in four stages: discovery and architecture (requirements workshop, system architecture document, API contracts, written technical approach), iterative delivery in two-week sprints with working software staged at every milestone, quality and testing (unit, integration, end-to-end, accessibility, and performance checks on every pull request), and handover with documentation, onboarding, and 30-day hypercare support. Nothing is considered complete until it's running on staging, and nothing reaches production without passing the full test suite.
Every pull request runs unit and integration tests (Vitest), end-to-end tests (Playwright), a Lighthouse CI performance gate, and axe accessibility validation, alongside strict TypeScript checks with zero implicit any types. This runs continuously during development rather than as a separate QA phase at the end, so regressions are caught before they reach staging.
Handover includes complete runbook documentation, a developer onboarding session, monitoring and alert configuration, and 30 days of hypercare support, with optional ongoing maintenance available afterward. This is designed so the receiving team isn't left without documentation or support the moment the initial engagement ends.
Connect With us
Have a product to build? Let's scope it.
Tell us what you’re building, what’s broken, or what you’ve been putting off. We’ll tell you what it takes and what it costs honestly.