Web Application Development
Web Development

Web applications built for production - not demos.

We build full-stack web applications - SaaS products, internal tools, and AI-powered platforms - with the engineering rigour required to scale. React, Next.js, Node.js, Python backends.

Next.jsReactNode.jsPython / FastAPI
Start your web project

Our stack

Next.js / React

Full-stack React applications with server-side rendering, static generation, and edge deployment. Our primary stack for SaaS products and AI-powered web apps.

Node.js Backends

REST and GraphQL APIs built with Node.js, Express, and NestJS - with real-time WebSocket support, queue processing, and microservice patterns.

Python Backends

FastAPI and Django for data-intensive applications, ML model serving, and AI pipeline APIs. Preferred for products where Python ML libraries are a core dependency.

PostgreSQL & Data Layer

Schema design, query optimisation, and database architecture for applications that need to scale - including multi-tenant SaaS patterns and row-level security.

AI Integration

LLM-powered features embedded in web products - chat, document processing, classification, search, and agentic workflows integrated into your existing stack.

DevOps & Infrastructure

CI/CD pipelines, containerisation, Kubernetes deployment, and infrastructure-as-code. We ship on AWS, GCP, and Vercel depending on your requirements.

What you get

Architecture design

System design document, data model, and API contract before build begins.

Production-grade code

TypeScript throughout, test coverage for business logic, ESLint and code review enforced.

Deployment pipeline

CI/CD with automated testing, staging environment, and one-command production deploy.

Performance baseline

Core Web Vitals measurement, bundle analysis, and database query profiling before handoff.

Documentation

API documentation, environment setup guide, and deployment runbook for your team.

By the numbers
8 wks
Average time from spec to production-deployed MVP
< 2s
Target Time to First Byte on all shipped applications
100%
TypeScript coverage enforced across all delivered codebases
50+
Web applications shipped from MVP to enterprise scale
Full stack

Our web application stack

Frontend
Next.jsReactTypeScriptTailwind CSSRadix UI
Backend (JS)
Node.jsNestJSExpresstRPCGraphQL
Backend (Python)
FastAPIDjangoCelerySQLAlchemy
Data layer
PostgreSQLRedisPrismaDrizzle ORMElasticsearch
AI integration
OpenAI APIAnthropic ClaudeLangChainPineconeLlamaIndex
Infrastructure
AWSGCPVercelDockerKubernetesTerraform
Monitoring
DatadogSentryPostHogOpenTelemetryGrafana
The difference
Typical agency delivery

Shipped fast, broken at scale.

No TypeScript - runtime errors discovered in production
No CI/CD - deployment is a manual FTP or SSH session
No tests - every change is a regression risk
No monitoring - you find out about bugs from customers
Vendor lock-in through proprietary abstractions
Docs delivered as a Word doc no one reads after day one
StartxLabs delivery

Production-grade from day one.

TypeScript throughout - type safety enforced at every layer
CI/CD pipelines with automated testing on every PR
Unit and integration tests for all business logic
Observability stack configured before launch
Open standards - no proprietary lock-in
Runbooks, API docs, and deployment guides your team can use
Featured project
AI-Powered SaaS Platform - Next.js + FastAPI

Multi-tenant SaaS with LLM document analysis. Zero-to-launch in 9 weeks.

Full-stack Next.js application with a FastAPI backend serving LLM-powered document analysis. Row-level security in PostgreSQL for multi-tenancy, Stripe billing integration, and a CI/CD pipeline that deploys in 4 minutes. Now processing 10,000+ documents per day.

9 weeks
Kick-off to production launch
10k+
Documents processed daily
< 2s
P95 API response time
4 min
CI/CD pipeline to production

Ready to build your
next digital product?

Whether you have a detailed specification or just an early idea - we'll help you scope it, challenge the assumptions, and deliver it on time. No pitch decks. Straight to the point.

What happens next

1

Send us a message

Tell us what you're building or what's broken.

2

Discovery call (30 min)

We ask hard questions. You get honest answers.

3

Scoped proposal

Clear deliverables, timeline, and team in 48 hours.

Contact Us

Tell us about
your project

Whether you have a detailed brief or just an early idea, we will help you scope it, challenge it, and ship it.

  • Agentic AI development and multi-agent systems
  • Generative AI consulting and LLM integration
  • RAG development and custom model deployment
  • Data engineering, MLOps and custom software
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