Services / Web Applications
Web Applications
I build scalable SaaS applications, dashboards, and business systems. Full-stack: Next.js + NestJS.
Why a web app
Custom software tailored to your business
Off-the-shelf SaaS solutions often don't fit your company's specifics. A custom web application eliminates compromises - you get exactly the features you need. Automate processes, integrate systems, build competitive advantage.
Architecture
Scalable architecture that grows with your business
I design applications with the future in mind. Modular architecture allows adding new features without rewriting everything. I use proven patterns: microservices, CQRS, event sourcing - depending on project scale. Your app will handle 10 users today and 10,000 next year.
- Microservices / modular monolith
- REST API or GraphQL
- SQL and NoSQL databases
- Message queues (Redis, RabbitMQ)
Integrations
Connection with systems you already use
An application doesn't work in a vacuum. I integrate it with your CRM, ERP, accounting system, payment gateways, external APIs. I automate data flow between systems, eliminating manual copying and errors.
- Integration with any API
- Stripe, PayPal, payment gateways
- Webhooks and automations
- SSO and AD/LDAP integration
Process
How I build applications
Discovery
I analyze requirements and design architecture
Design
I create UX/UI in Figma, prototype
Development
I build the app in 2-week sprints
Testing
Unit, integration, E2E tests
Deploy
I deploy with CI/CD, set up monitoring
Technologies
What I offer
Scalability
Architecture ready for thousands of users
REST/GraphQL API
Modern API with OpenAPI documentation
Authentication
Login, roles, permissions, 2FA
Real-time
WebSockets, push notifications, live updates
Payments & Subscriptions
Stripe, PayPal, recurring billing
CI/CD
Automated deployments, testing, monitoring
Pricing
Web Application Packages
MVP
from 15,000 PLN
Minimum Viable Product
- Core functionality
- Basic auth
- 1 integration
- Responsive UI
- Documentation
- 2 months support
Standard
from 40,000 PLN
Full production application
- Admin dashboard
- API + documentation
- Payments
- Email notifications
- Analytics
- 6 months support
Enterprise
from 80,000 PLN
Complex business system
- Microservices
- Multi-tenant
- Custom integrations
- 99.9% SLA
- White-label
- 12 months support
FAQ
Frequently Asked Questions
How long does it take to build a web app?
An MVP typically takes 2-3 months, a full application 4-6 months. Complex enterprise systems may require 6-12 months.
What technologies do you use?
Frontend: React/Next.js, TypeScript. Backend: NestJS, Node.js. Databases: PostgreSQL, MongoDB. Cloud: AWS, Vercel.
Do you offer post-launch support?
Yes - every package includes a support period. I can also provide a long-term SLA agreement.
Do you help with UI/UX design?
Yes - I create designs in Figma before starting development. I can also work with your designer.
Have an app idea?
Let's talk about your project. Free consultation and quote.