Custom web applications that run your business.
From SaaS platforms and client portals to internal dashboards and e-commerce systems — I build web applications that solve real problems, scale with your growth, and work on every device.
Get a free quoteWhat is web application development?
A web application is software that runs in a browser. Unlike a static website that just displays information, a web app lets users interact — log in, manage data, process payments, generate reports, communicate, and automate workflows.
Think of tools you use every day: Gmail, Trello, Shopify, Slack. Those are all web applications. When a business needs something similar — built around their specific process — that's what I build.
Web app vs. regular website
- Websites display content (brochure, blog, portfolio).
- Web applications process data, handle user accounts, run business logic, and integrate with other systems.
- Most modern projects are a mix — a marketing site with an application behind the login.
Solutions I build
Every project is custom. Here are the types of web applications I deliver most often.
SaaS platforms
Multi-tenant software-as-a-service products with user registration, subscription billing, dashboards, and API access. Built to scale from 10 users to 10,000.
- Stripe/PayPal billing
- Role-based access
- Usage analytics
- API for integrations
Admin dashboards
Custom back-office panels for managing orders, customers, inventory, content, and team members. Real-time data, charts, filters, and export tools.
- Live data tables
- Charts and reports
- CSV/PDF export
- Activity logs
Client portals
Secure login areas where your customers can view invoices, track orders, submit support tickets, download files, and manage their account.
- Secure authentication
- Document sharing
- Ticket system
- Payment history
E-commerce applications
Beyond a standard online store — custom product configurators, wholesale ordering systems, marketplace platforms, and subscription box services.
- Custom checkout flows
- Inventory management
- Multi-vendor support
- Subscription billing
Booking and scheduling
Appointment booking systems, event management platforms, resource scheduling tools. Calendar views, automated reminders, and payment collection.
- Calendar integration
- Automated reminders
- Payment at booking
- Staff scheduling
Workflow automation
Internal tools that replace manual processes — approval flows, data pipelines, report generators, notification systems, and CRM integrations.
- Approval chains
- Email automation
- Third-party API sync
- Scheduled tasks
Real-time applications
Chat systems, live dashboards, collaborative editing, notification feeds. Using WebSockets and server-sent events for instant updates.
- WebSocket connections
- Push notifications
- Live collaboration
- Presence indicators
Progressive web apps (PWA)
Web applications that work offline, send push notifications, and install on the home screen like a native app. One codebase, every device.
- Offline support
- Push notifications
- Home screen install
- Fast load times
API development
RESTful and GraphQL APIs that connect your web app to mobile apps, third-party services, payment gateways, and IoT devices.
- REST and GraphQL
- Authentication (OAuth, JWT)
- Rate limiting
- Documentation
Service areas
Web application development is broad. Here is what I cover across the full lifecycle.
Discovery and planning
Requirements gathering, user story mapping, wireframing, database schema design, and technical architecture decisions — before any code is written.
UI/UX design
User interface design, prototyping, responsive layouts, and design systems. Clean, accessible interfaces that people can actually use without a manual.
Frontend development
React, Next.js, Vue.js, TypeScript. Component-based architectures, state management, animations, and pixel-perfect implementation of designs.
Backend development
Node.js, Laravel, Python. Database design, API development, authentication, file handling, background jobs, and server-side business logic.
Cloud and DevOps
AWS, Vercel, Hetzner, DigitalOcean. Server provisioning, CI/CD pipelines, Docker containers, SSL, DNS, and automated deployments.
Maintenance and support
Bug fixes, security patches, performance monitoring, feature additions, dependency updates, and 24-hour response time for critical issues.
By the numbers
A snapshot of what goes into building a production web application.
per project on average
per mid-size application
before every launch
in the QA checklist
on 4G mobile
target for every app
for production apps
for critical issues
Technology stack
I use the right tool for each job. The stack depends on your project — not what's trendy this month.
| Layer | Technologies | When I use it |
|---|---|---|
| Frontend | React, Next.js, Vue.js, TypeScript | SPAs, SSR apps, interactive dashboards |
| Backend | Node.js, Laravel (PHP), Python, Express | APIs, server logic, data processing |
| CMS | WordPress, Shopify, Strapi, Payload CMS | Content-heavy apps, e-commerce, blogs |
| Database | PostgreSQL, MySQL, MongoDB, Redis | Relational data, document stores, caching |
| Auth | NextAuth, Clerk, Firebase Auth, custom JWT | User login, SSO, role-based access |
| Payments | Stripe, PayPal, Square | Subscriptions, one-time, marketplace splits |
| Real-time | WebSockets, Socket.io, Pusher, SSE | Chat, live updates, notifications |
| SecureSMTP, Resend, SendGrid, SES | Transactional, marketing, drip sequences | |
| Hosting | AWS, Vercel, Hetzner, DigitalOcean | Static, serverless, VPS, containers |
| CI/CD | GitHub Actions, Docker, PM2 | Automated testing, builds, deploys |
Development process
Every project follows the same structured process. No guesswork, no surprises.
Research and development
Building the right thing is more important than building it fast. Here is how I make sure we get it right.
Before writing code
- Market research — I study similar products, identify what works and what doesn't, and find gaps we can exploit.
- User research — Who are the actual users? What are their pain points? What do they expect? Interviews, surveys, or competitor reviews inform the design.
- Technical feasibility — Can the idea be built within budget? Are there API limitations? Scalability concerns? I identify risks before they become problems.
- Proof of concept — For complex features (AI integration, real-time sync, third-party APIs), I build a quick prototype to validate the approach before committing.
During and after development
- Performance benchmarking — Load testing, database query profiling, frontend bundle analysis. I measure, then optimize.
- A/B testing setup — For user-facing features, I can wire up A/B tests to measure which version performs better with real users.
- Analytics integration — Google Analytics, Mixpanel, PostHog, custom event tracking. You see how users actually interact with the app.
- Iteration based on data — After launch, real usage data drives the next round of improvements. Not assumptions — data.
Testing and quality assurance
Every application goes through multiple rounds of testing before it reaches your users.
Unit testing
Individual functions and components tested in isolation. Catches bugs at the smallest level. Using Jest, Vitest, PHPUnit depending on the stack.
Integration testing
Testing how different parts of the application work together. API endpoints, database operations, authentication flows, payment processing.
End-to-end testing
Simulating real user interactions from login to checkout. Playwright and Cypress for automated browser testing across Chrome, Firefox, Safari.
Cross-device testing
Testing on real phones, tablets, and desktops. iOS Safari, Android Chrome, desktop browsers. Touch interactions, responsive layouts, orientation changes.
Performance testing
Load testing with realistic traffic, database query optimization, bundle size analysis, Core Web Vitals monitoring. Slow software loses users.
Security testing
SQL injection, XSS, CSRF, authentication bypass, privilege escalation, data exposure. OWASP top 10 coverage. Penetration testing for sensitive applications.
QA checklist (every project)
Web app vs. website vs. mobile app
Choosing the right format depends on what your users need to do.
| Feature | Static website | Web application | Mobile app |
|---|---|---|---|
| User accounts | No | Yes | Yes |
| Database / data storage | No | Yes | Yes |
| Works on all devices | Yes | Yes | iOS or Android |
| No install required | Yes | Yes | No |
| Offline access | Limited | PWA possible | Yes |
| Push notifications | No | PWA possible | Yes |
| App Store presence | No | No | Yes |
| Development cost | $1K-$5K | $3K-$50K+ | $10K-$100K+ |
| Time to build | 1-3 weeks | 4-24 weeks | 8-32 weeks |
| Best for | Info, marketing | Business tools, SaaS | Consumer products |
Not sure which you need? Ask me — I'll recommend the right approach based on your goals and budget.
Industries served
Web applications I have built span across these industries.
Healthcare
Patient portals, appointment scheduling, telehealth platforms, EHR integrations, HIPAA-conscious data handling.
E-commerce and retail
Custom storefronts, inventory management, marketplace platforms, wholesale portals, subscription services.
Construction and field services
Project tracking, timesheet apps, photo documentation, equipment management, GPS tracking dashboards.
Education
Learning management systems (LMS), student portals, course platforms, quiz engines, certificate generation.
Professional services
CRM systems, client portals, invoicing tools, project management, document approval workflows.
Automotive
Vehicle listing platforms, dealer management, parts inventory, service scheduling, lead management.
Frequently asked questions
A simple web app (dashboard, portal) takes 4-8 weeks. A mid-complexity SaaS product takes 8-16 weeks. Enterprise-grade applications with multiple integrations take 16-24 weeks. Timelines depend on scope, features, and how quickly decisions are made.
Frontend: React, Next.js, Vue.js, TypeScript. Backend: Node.js, Laravel (PHP), Python. Databases: PostgreSQL, MySQL, MongoDB, Redis. Hosting: AWS, Vercel, Hetzner, DigitalOcean. The stack depends on your project requirements — I recommend what fits, not what is trendy.
A basic web app starts around $3,000-$5,000. A mid-range SaaS product runs $8,000-$20,000. Complex enterprise apps with integrations, real-time features, and multi-tenant architecture start at $20,000+. I provide fixed quotes after understanding your requirements — no hourly billing surprises.
Yes. Every project includes 30 days of bug-fix support after launch. For ongoing maintenance, feature additions, and monitoring, I offer monthly retainer plans starting at $500/month.
Yes. I regularly modernize legacy PHP, jQuery, and WordPress applications into modern React/Next.js stacks. The process includes auditing the existing system, planning the migration path, building the new version, migrating data, and running parallel testing before cutover.
Yes. You own 100% of the code, design files, and all assets. I transfer the full repository to your GitHub/GitLab account at handoff. No lock-in, no proprietary frameworks that tie you to me. You can hire any developer to continue the work if you choose.
Weekly progress updates, a shared staging URL you can test anytime, and direct access to me via chat or email. No project managers in between. You talk to the person writing the code.
I handle most projects solo — that means one person accountable for everything, no miscommunication between team members. For larger enterprise projects, I bring in vetted specialists (designers, DevOps, QA) and manage them directly.
Ready to build your web application?
Tell me what you need. I will send you a scope document and a fixed-price quote within 48 hours.
Get a free quote