Custom Web Applications
Bespoke, high-performance web applications built with modern TypeScript, React, and cloud architectures designed for heavy scale.
Executive Summary
Overview & Impact
Custom web applications are tailored software platforms engineered to meet specific business workflows, customer portals, or SaaS products that off-the-shelf software cannot satisfy. Built with robust TypeScript architectures, responsive frontends, and scalable cloud databases, they provide proprietary competitive advantages.
Off-the-shelf software inevitably creates workflow compromises. Vexsio designs, builds, and maintains custom web applications that solve your specific operational bottlenecks. We deliver modular architectures, intuitive UI/UX, robust APIs, and scalable databases built to support millions of requests with low latency.
What's included
Everything the engagement covers.
Modern TypeScript & React Ecosystem
Type-safe architectures using Next.js, TanStack Start, or Remix for lightning-fast server and client performance.
Scalable Cloud Architecture
Serverless and microservices backend implementations on AWS, Cloudflare Workers, or Google Cloud.
Relational & Document Data Models
Optimized database design with PostgreSQL, Prisma, Redis caching, and real-time event streaming.
Enterprise Security & RBAC
Role-based access control, SOC2-compliant auth flows, JWT sessions, and rigorous penetration testing.
Automated CI/CD & Testing
Full test coverage using Playwright, Jest, and GitHub Actions for continuous zero-downtime releases.
Complete IP & Code Ownership
You own 100% of the source code, repository rights, cloud infrastructure, and documentation.
Our process
How custom web applications gets delivered.
A structured roadmap from discovery to live deployment with transparent sprint reviews.
- 01
Discovery
Users, constraints, integrations, and the commercial outcome the build must achieve.
- 02
Technical Design
Architecture, data models, and delivery plan with staged, testable milestones.
- 03
Build Sprints
Two-week agile cycles with a live staging environment you can test and review.
- 04
Hardening
Load testing, security review, accessibility, and error monitoring before release.
- 05
Launch and Support
Deployment, real-time observability, and iteration against actual customer usage.
Tools & technologies
Related services
Work that usually sits alongside this.
FAQ