Garage Inventory Management System
Private warehouse management system for garage and workshop. Features QR code scanning, location tracking and e-commerce integration via REST API.
Web application
development services
Custom admin dashboards, CRM systems, SaaS MVPs and product configurators.
Laravel + Filament + Vue + Astro · 15+ years of experience · EUR pricing.
Who I build for
Web applications, not brochure websites
You are looking for web application development services — which means you need software that does something, not just a website that describes your business. Users will log in, enter data, run operations, and rely on the app as a tool.
I build web applications for three types of client:
- Startups launching a SaaS MVP — turning an idea into a validated product in 2–4 months without a full engineering team
- Small and mid-size businesses digitalizing an internal process — CRM, inventory, ordering, scheduling, reporting
- Enterprise teams needing a senior frontend or full-stack contractor for a specific feature or module
My stack of choice is Laravel + Filament for the backend and admin panel, Vue 3 or Astro for the public frontend, and a clean REST/GraphQL API connecting the two. This combination covers 90% of the web apps small and mid-size businesses actually need.
What I build
Types of web applications I deliver
These are the web application categories where I have shipped real, working software for real businesses — not just demos.
Admin dashboards and internal tools
The everyday tools that run your business — product catalogs, order management, inventory tracking, analytics dashboards. Often built on Filament for rapid delivery. Real example: garage inventory system with QR-code scanning.
CRM and workflow systems
Custom CRM applications when off-the-shelf (Salesforce, HubSpot, Pipedrive) does not fit. Workflow tools for approvals, scheduling, task assignment. Especially useful for regulated industries or niche business models.
SaaS MVPs for startups
Get from idea to a validation-ready MVP in 2–4 months. Built with production-quality code from day one, so you do not need to rebuild once investor traction appears. Laravel + Vue + Stripe subscriptions is a common pattern.
Product configurators and calculators
Interactive tools that help customers choose the right product or estimate a quote. Can live as an island inside an existing marketing site (Astro + Vue) or as a standalone application with lead capture.
Customer and partner portals
Secure portals where customers, distributors, or partners log in to see their data — order history, invoices, documentation, pricing. Often a requirement for B2B businesses moving from email-and-spreadsheet workflows.
REST and GraphQL APIs
Backend APIs for mobile apps, headless frontends, or third-party integrations. Authentication (JWT, OAuth), rate limiting, versioning, Swagger/OpenAPI docs. Laravel as the most common backend framework.
Tech stack
Why Laravel + Filament + Vue for most apps
My default stack for custom web applications is Laravel + Filament + Vue 3 + Astro. Here is why this combination wins over alternatives like full React/Next.js stacks, no-code tools, or older PHP frameworks:
- Laravel — the PHP ecosystem has matured enormously. Eloquent, queued jobs, Livewire, solid documentation, massive developer pool. For 90% of B2B apps, a good Laravel developer ships 2× faster than a full JavaScript team.
- Filament — an admin panel builder on top of Laravel. What would take 2–3 weeks of custom dashboard development ships in 2–3 days with Filament. It is not a toy — production-ready, customizable, and the right choice for 80% of internal tools.
- Vue 3 — for the public frontend or interactive islands. Simpler than React, first-class TypeScript, composition API. If the app needs a reactive SPA, Vue is where I start.
- Astro — for marketing pages around the application, content-heavy landing pages, and the public-facing part of SaaS products. Static HTML performance for the parts that don't need reactivity.
For clients with existing React, Next.js, or Node.js infrastructure, I adapt — the stack is a tool, not a religion. But if you are starting fresh and want the fastest path from idea to production, Laravel + Filament is hard to beat.
Web application case studies
See full portfolio »Selected web application projects — from internal inventory tools and product catalogs to open source plugins and a Chrome extension used daily by SEO professionals.
Parts & Accessories Catalog
Headless CMS parts catalog for VW Polo 6R. Astro SSG, Vue 3, Laravel API, Filament admin, AI descriptions, DeepL translations and Cloudflare R2 image pipeline.
Uper SEO Auditor
Chrome extension for SEO specialists and developers. Provides real-time debugging of Web Vitals, Schema.org, GTM, and JS errors directly in Chrome Side Panel.
GotowySMS: Custom CMS & Frontend Development
Static site with ready-to-use wish texts and SMS templates, powered by a custom CMS on Laravel 13 + FilamentPHP. Architecture built to withstand seasonal traffic spikes.
Modern Car Blog
Automotive blog built with Astro, Vue3, UnoCSS, REST API, and WordPress.
Website vs application
Do you actually need a web application?
Clients often ask for "an app" when what they really need is a content-rich website with a few interactive components — and vice versa. The boundary matters because it drives cost and timeline.
Quick test — you need a web application if:
- Users will log in with accounts and have private data
- Your business process will live inside the software (not in someone's head or a spreadsheet)
- Different users see different data based on their role
- You need to automate what currently takes manual work
- You are building a product, not a marketing site
If you answer "no" to all of these, you probably need a website with interactive elements, not a full application. More on this in the guide: Web application vs website — what is the difference?
Pricing
Web application development pricing
Net prices, VAT added where applicable. These are typical project ranges — the final quote depends on complexity, integrations, and team structure required.
MVP / internal tool
Single-purpose, focused scope
€4,000
from / net- Filament-based admin panel
- One primary user role
- Core CRUD + key business logic
- Authentication + basic reporting
- 2–4 month delivery
Most common
Custom application
Multi-role, integrations
€12,000
from / net- Multiple user roles and permissions
- Public frontend + admin panel
- Third-party integrations (payments, email, APIs)
- Custom workflows and automation
- Role-based reporting dashboards
- 3–6 month delivery
SaaS / enterprise
Subscription, scale, white-label
€30,000
from / net- Multi-tenant architecture
- Subscription billing (Stripe)
- API for partners / mobile apps
- Advanced permission model
- Scalable infrastructure planning
- 6+ month delivery
How we work
Web application project process
Iterative delivery with weekly demos — not a big-bang release at the end.
Discovery and scoping
We start with a 60–90 minute call covering the business problem, the users, the existing systems, and the budget. I come back with a scope document before any code — no ambiguous "time and materials" pricing.
MVP definition
For larger projects we define a minimum viable slice — the smallest set of features that delivers real value and can be tested with real users. This is usually 60% of the "wish list" and 30% of the budget.
Iterative development
Two-week sprints with a live demo at the end of each. You see working software every two weeks, not a Figma mockup at week one and a big reveal at month four. Feedback shapes the next sprint.
Testing and deployment
Automated tests for critical paths, staging environment for acceptance testing, then production deployment with rollback plan. CI/CD pipeline set up so future changes ship in minutes, not hours.
Ongoing support
30 days of free fixes after launch. Ongoing support options: monthly retainer for maintenance and small features, or hourly for ad-hoc work. Most app clients keep a retainer — applications need more ongoing attention than static sites.
FAQ
Frequently asked questions
Can you build a web application as a solo freelancer?
For projects up to around 6 months of focused work, yes — and faster than an agency with the same budget. I handle backend (Laravel), frontend (Vue/Astro), database design, deployment, and basic DevOps. For larger projects needing mobile apps, complex DevOps, or specialist roles (dedicated ML engineer, iOS/Android native), I coordinate with trusted partners rather than claim to do it all.
How long does it take to build an MVP?
A focused MVP for a SaaS or internal tool typically takes 2–4 months. The biggest variable is not the technical work but the client's decision speed on feature scope, integrations, and designs. Projects where the client has a clear vision ship at the fast end; projects where requirements keep evolving take longer.
What does Filament do and why do you recommend it?
Filament is a Laravel-based admin panel builder. It generates CRUD interfaces, forms, tables, and dashboards from your data model — production-ready out of the box. What would take 2–3 weeks of custom React admin panel development ships in 2–3 days with Filament. For internal tools and admin panels, it is usually the fastest path to working software without compromising on quality.
Do you work with existing teams or take full ownership?
Both. I can lead a project end-to-end as the single developer, or join an existing team as a senior frontend / full-stack contractor. At Rocksoft I worked nearly four years on Horze.de as a frontend contractor embedded with a larger team. Outside of Rocksoft, most of my direct-client projects are full-ownership.
How do you handle ongoing maintenance?
Web applications need more ongoing attention than static sites — security patches, framework updates, bug fixes, minor features, monitoring. I offer monthly retainers (fixed hours at a discounted rate) or hourly ad-hoc work. For critical business applications, a retainer is strongly recommended — it ensures predictable response times and prevents technical debt from accumulating.
Is it worth building custom instead of using no-code tools?
No-code tools (Airtable, Bubble, Retool) are great for quick internal tools with simple logic. They fall short when you need custom workflows, performance at scale, complex permissions, or integration with specific APIs. A good rule: if the tool would take 40+ hours to build in no-code workarounds, custom development is usually cheaper in total cost of ownership — and dramatically cheaper once you need to change something.
Can you integrate with our existing systems?
Yes — most projects involve integrating with something. Payment processors (Stripe, PayPal, Adyen), email services (Resend, SendGrid, Mailgun), ERP/CRM systems (Salesforce, HubSpot, custom APIs), accounting (QuickBooks, Xero), analytics (GA4, Segment). The specifics depend on your existing stack — we cover this in the discovery call.
Start your web application project
Describe what you want to build — I'll come back within 24 hours with a tech recommendation and a ballpark quote. Free, no obligation.