Custom Web Applications That Scale
From SaaS platforms to enterprise dashboards — I build web applications that power businesses. Modern tech stack, scalable architecture, exceptional UX.
- Lighthouse ≥ 95
- 6 production deployments
- PL · EN · DE
An app you cannot build on a template
Bespoke business processes — approval workflows, multi-tenant tenancy, internal dashboards — do not fit into a generic SaaS.
I build dedicated web applications on Next.js. Full control over logic, schema and integrations. Scalable from day one.
Three pillars of a web application
What clients expect from a custom application in 2026.
Performance
SSR and ISR, edge functions, intelligent caching. An app that does not slow down under load.
Security
Auth (Clerk/Auth.js), RBAC, Zod validation on every entry point, encrypted secrets, audit logs.
Scalability
Multi-tenant architecture, rate limiting, queued background jobs (BullMQ/Inngest), monitoring and observability.
What I Build
Tailored solutions for your specific business needs
SaaS Platforms
Multi-tenant applications with subscription management, user authentication, and scalable infrastructure.
Admin Dashboards
Data visualization, reporting tools, and management interfaces for your team.
Progressive Web Apps
App-like experiences that work offline, install on devices, and provide native features.
API Integrations
Connect your systems with third-party services, payment gateways, and custom APIs.
My Tech Stack
Frontend
- Next.js 16 (App Router)
- React 19
- TypeScript
- Tailwind CSS
Backend
- Node.js / Bun
- PostgreSQL / Supabase
- Prisma ORM
- REST / GraphQL
Infrastructure
- Vercel / AWS
- Docker
- CI/CD pipelines
- Monitoring & analytics
Development Process
Discovery
Understanding your goals, users, and technical requirements.
Design
UI/UX design, architecture planning, and technical specification.
Development
Agile sprints with regular demos and continuous deployment.
Launch
Testing, optimization, deployment, and ongoing support.
Mobile apps (PWA)
Looking for a mobile app for your business? In most cases you don't need a costly native app. A PWA (Progressive Web App) behaves like a mobile app — it installs on the phone's home screen, works offline and can send push notifications — yet ships faster and cheaper, because one codebase covers web and mobile.
I build PWAs in Next.js with full offline and caching support. This very website is a PWA — you can install it straight from the browser and see how it works in practice.
Frequently asked questions
Got an idea for an app? Let's build the MVP
From idea to MVP in 6–12 weeks. Fixed price, regular demos, transparent timeline.