Senior Full Stack Architect in Berlin — Enterprise Multi-Brand, Next.js & AI Integration
Ajdin Šahinbegović is a Senior Full Stack Architect with 8+ years of experience building greenfield multi-brand platform architectures, AI-powered features, and design systems for enterprise product teams across Europe. Based in Berlin, available for freelance and contract work in Berlin and remote.
✓ Available for Freelance · Berlin & Remote
What I Solve
I work with enterprise and scale-up teams facing multi-brand complexity, slow design-to-dev handover, or the need to ship AI features in production — not just prototype them. If your frontend team is duplicating work across brands, bottlenecked on design handover, or bolting AI onto a UI that wasn't built for it, that's where I come in.
Proven at Enterprise Scale
One Codebase, Twenty Brands
Architected a greenfield platform from scratch for 20 brands within the Oetker Group on a single shared codebase — no duplication, full brand-level flexibility for design and content. Result: a 40% reduction in infrastructure costs and one pipeline serving every brand.
Figma-to-Code, Without the Manual Handover
Automated a Figma API pipeline that turns design tokens and components directly into production code — eliminating the manual handover between design and frontend teams and cutting the DesignOps cycle from days to hours.
Zero-Downtime Migration Across 20 Brands
Led a zero-downtime migration across all 20 brands, paired with an Algolia-certified search & discovery implementation for instant, relevant search across every brand.
What I Offer
Frontend Architecture
Greenfield platforms, system design, scalable component libraries, micro-frontends, and production-ready patterns.
Design Systems
Atomic Design, themable component libraries, design tokens, Figma API automation, and unified brand experiences.
AI-Powered Features
Azure OpenAI integration, RAG architecture, AI agents, Vercel AI SDK, and LLM-powered applications.
Performance & Accessibility
Core Web Vitals optimization, 95+ Lighthouse scores, WCAG 2.1 compliance, and zero-downtime migrations.
Tech Stack
Frontend
Next.js (SSG, SSR, ISR, i18n), React, TypeScript, Vue.js, Design Systems, Micro-frontends
Backend & API
Node.js, NestJS, PHP, Laravel, PostgreSQL, GraphQL, REST, Headless CMS
AI & Agents
Azure OpenAI, Vercel AI SDK, RAG Architecture, Mastra, Copilot Studio, MCP
DevOps & Tooling
Docker, AWS, CI/CD, Figma API, Design Tokens, Playwright, Cypress, Zod
Notable Clients & Projects
Oetker Group
Greenfield multi-brand platform for 20 brands across 10 locales. Zero-downtime migration, design system leadership, API optimization.
Porsche
Multi-language responsive platforms and digital experiences with complex SVG animations and advanced search.
Julius Baer
High-security banking interface using Atomic Design and BEM methodologies. Enterprise browser compatibility.
Volkswagen
Test-drive booking platforms and legacy modernization. Scalable Vue.js architecture.
IKK Classic Bank
Secure and responsive fintech frontend with strict SCSS architecture and data compliance.
Specialized In
How We'd Work Together
1. Discovery
Align on scope, constraints, and what success looks like.
2. Architecture
Design the system: brand structure, data flow, AI/search integration points.
3. Implementation
Build and ship production-ready code with your team.
4. Handover
Document, train, and hand off a system your team can own.
Frequently Asked Questions
Is Ajdin available for freelance work?
Yes — available for freelance and contract work in Berlin and fully remote.
What does Ajdin specialize in?
Frontend architecture, design systems, React/Next.js, and AI-powered web features. Specializing in scalable, production-ready systems for enterprise clients.
How many years of experience does Ajdin have?
8+ years building production frontend systems, from greenfield architectures to zero-downtime migrations across 20 brands.
Does Ajdin work remotely?
Yes — based in Berlin but available for remote work worldwide. Comfortable with async teams and time zone flexibility.
Does Ajdin work on multi-brand architectures and AI integrations?
Yes — architected a single shared codebase serving 20 brands for the Oetker Group, and regularly integrates Azure OpenAI, Vercel AI SDK, MCP, and RAG into production frontend systems.
Ready to Discuss Your Project?
Get in touch to discuss architecture, design systems, AI-powered features, or your next big project.