Marcel Baumbach Logo

Fullstack Web Development

Built for the people who work with it.

I build web applications that don't just work – they don't let down the people who depend on them every day. Custom code instead of no-code compromises, thoughtful interfaces instead of generic templates, and a technical foundation that grows with your requirements.

Your project deserves more than a template.

Off-the-shelf solutions rarely fit. I build web applications tailored precisely to your requirements – from architecture to the last interface detail. You describe what you need; I tell you the most sensible way to implement it. Honest, direct, no detours.

Frontend with depth.

React, Vue, Angular – whatever the requirement demands. Component-driven development, design systems, Storybook, accessibility and performance by default.

Modern stack. No overhead.

React / Next.js · Vue / Nuxt · Angular · Node.js · Python · REST & GraphQL · Tailwind CSS · Figma · Storybook

100% custom code.

No page builder, no hidden framework overhead. Every line of code is traceable, maintainable and owned by you.

More than a website.

Web apps as the frontend for automated processes and AI systems – all from a single source.

What I build

Custom web applications

Tailor-made tools and platforms for internal or external users – built to your processes, not the other way around.

Government and citizen portals

Accessible, WCAG-compliant applications for the public sector with clear structure and long operational life.

Dashboards and data interfaces

Complex data presented clearly and interactively – for quick decisions instead of overloaded spreadsheets.

HMI – Human-Machine Interfaces

Browser-based operator interfaces for technical systems and machinery: precision, responsiveness and clear visual hierarchy.

Internal tools and workflows

Interfaces for automated processes your team uses daily – functional, maintainable and without overhead.

API development and integration

REST and GraphQL APIs that communicate securely and in a versioned manner with your systems and connect third-party systems.

Frontend – my passion

I am a fullstack developer, but my passion is the frontend. You notice it: in the quality of the components, in the consistency of the interface, in handling edge cases others overlook.

I work component-driven and think in reusable building blocks from day one – this accelerates development, makes future changes easier and keeps the codebase manageable.

React / Next.js

My first choice for complex, interaction-rich applications and SSR requirements.

Vue / Nuxt

For lean, well-structured projects with a clear component model.

Angular

For enterprise requirements with strict typing and established patterns.

Design Systems – consistency that scales

A good design system is not a luxury – it is an infrastructure decision. It ensures your application stays consistent over years, even as teams change or features are added.

I develop and implement design systems based on Figma, Storybook and Tailwind CSS – from visual language to a living component library your team can actually use.

Backend and system architecture

Good architecture is invisible – it only becomes noticeable when it is missing. I design backend systems that do not just work today, but hold up under load, with growing requirements and in regulated environments.

My experience as a software architect is particularly in the finance and banking sector: systems with audit trails, regulated APIs, data separation at architecture level and traceable documentation.

What this means in practice

Auditable system architecture

Full traceability of data access, changes and system events – relevant for compliance and external audits.

Regulated API interfaces

Secure, versioned APIs to industry standards (OpenAPI/Swagger), designed for interoperability under regulatory frameworks.

Security architecture

Authentication, authorisation, data encryption and least-privilege access as core design elements – not an afterthought.

Scalability and resilience

Architectures that remain stable under load, isolate failures and can be extended in a controlled manner.

Technology-agnostic documentation

System documentation that is still understandable in three years' time – for your team, auditors and successors.

  • Node.js – for event-driven backends, APIs and real-time functions
  • Python – for data-intensive services, AI connections and automation backends
  • REST & GraphQL – chosen based on flexibility and performance requirements
  • SQL and NoSQL – selected and modelled to match your use case

Frequently asked questions

Your project. Your code. Your solution.

No template, no compromise. If you need a web application that truly fits your requirements, let's talk. In a free initial call we will work out together what makes sense – technically and strategically.

Schedule a free initial call

Related Services

Digital Accessibility

Legally compliant. Technically solid. Accessible to everyone. – WCAG compliant. Legally secure. Usable for everyone.

Automation & AI

Your processes run. Your team decides. – AI that works productively and delivers ROI.

Process Digitalisation

From analysis to running solution. – Workflows that measurably accelerate processes.