Senior Software Architect

Software for the next generation of digital products.

Building complex web platforms across frontend, backend, and APIs for 17+ years. Senior engineering directly with me, no agency in between.

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Your challenge

Sound familiar?

Typical situations where teams bring me in.

Your stack can no longer keep up with growth.
Features take longer, bugs pile up, new requirements cost weeks instead of days. What started as an MVP can no longer carry the business.
Your frontend feels heavy and dated.
Users notice it first, conversion and trust suffer. A redesign alone is not enough, you need a clean foundation.
You want AI in your product, but no one on the team knows how to do it properly.
Prototypes are not enough. You need integrations that run in production, with UX that users actually understand.
Senior engineering is missing. Decisions get lost in the details.
There are ideas and tickets, but no one holding architecture, trade-offs, and delivery together.

Services

What I do for you

Three focus areas, from one source. Clearly scoped, freely combinable.

Product development
Architecture and engineering of web platforms built to grow. Frontend, backend, API. End-to-end or as the senior force reinforcing your team.
  • Architecture and tech stack
  • Frontend with React, Next.js, TypeScript
  • Backend and APIs
  • CI/CD and deployment
  • Scalability and performance
AI integration
Bringing real AI capabilities into your product and packaging them so users actually adopt them. LLMs, agents, embedded in clean UI and UX.
  • LLM integration (OpenAI, Anthropic, local)
  • Agents and tool use
  • UI and UX for AI features
  • Evals and monitoring
Audit and optimization
Tech, SEO, and GEO put under the microscope and improved with focus. No generic report, a roadmap you can act on right away.
  • Tech audit (architecture, code, performance)
  • SEO audit and optimization
  • GEO (Generative Engine Optimization)
  • Core Web Vitals
  • Concrete delivery roadmap

Process

How we work together

Clear, no drama. You know exactly where you stand at every step.

1

Free intro call

We align on context, goals, and whether we are a fit.

2

Analysis and concept

A deeper look at stack, data, and requirements. You get a concrete roadmap with effort and risks.

3

Delivery

Clean architecture, regular demos, shippable increments. No black box, full visibility.

4

Launch and aftercare

Handover, monitoring, optimization. On request, ongoing support as a senior partner.

17+
Years of experience
200+
Projects delivered
15+
Industries
30+
Brands in portfolio

Brands I have worked with

AlpecinTicketmasterSparkasseDeutsche BahnADACSonnenBEMERBVGBEOSNordLBwirkaufendeinautosonnenAlpecinTicketmasterSparkasseDeutsche BahnADACSonnenBEMERBVGBEOSNordLBwirkaufendeinautosonnen

Projects

Selected projects

Complex platforms, built for real-world requirements.

E-Commerce

International multi-brand website and shop platform

Problem

Several brands, several countries, one shared foundation. Time-to-market for new brands was measured in months.

Solution

Multi-tenant architecture with a shared component and content base, brand- and country-specific layers on top.

Result

New brands live in days instead of months. Consistent performance across all markets.

Next.js
TypeScript
Headless CMS
Commerce API
Edge caching
SaaS · Insurance

Claims management SaaS for the insurance industry

Problem

Claims handling spread across email, spreadsheets, and legacy systems. Long throughput times, high error rates.

Solution

Workflow-based SaaS platform with roles, audit trail, integration with core systems, and automated document processing.

Result

Throughput times significantly reduced. Clean compliance and audit trail.

TypeScript
Node.js
PostgreSQL
Event-driven
Workflow engine
Automotive

Omnichannel platform for car dealerships

Problem

Inventory, leads, and processes split across separate tools. No single picture for sales or management.

Solution

Central omnichannel platform for inventory and process management. One source of truth, from online listing to service appointment.

Result

Faster response to inquiries, transparent utilization, fewer media breaks.

Next.js
GraphQL
PostgreSQL
Third-party integration
Public Sector

Digital information platform for the public sector

Problem

Heterogeneous information sources, strict requirements for availability, accessibility, and data protection.

Solution

Scalable information platform with accessible UI, granular permission model, and traceable data lineage.

Result

Information reliably reachable, even under load. WCAG-compliant delivery.

Next.js
TypeScript
Identity management
High availability
Marcus Brose

About me

Marcus Brose

Software Architect

For over 17 years I've been building web platforms that companies rely on. Frontend, backend, API, architecture. I enjoy working where complexity meets ambition, from international multi-brand commerce to public-sector platforms. AI is part of my toolbox, not on display.

Architecture
Next.js and React
Node.js and APIs
TypeScript
PostgreSQL
AI integration
Performance
SEO and GEO

Contact

Let's talk

A free intro call. You will know right away whether and how I can help.

Or email me:

anfrage@marcusbrose.com