Full-Stack Development Experts

Berlin-Based PHP & React Development Experts Building Solutions That Scale

A Berlin-based consultancy with 18+ years of expertise in custom software development, legacy code modernization, and digital transformation. We rescue stalled vibe-coded projects, harden AI-generated code for production, and help businesses across Europe build secure, high-performance web applications with PHP/Symfony, React/Next.js, and cloud-native architectures.

18+ Years Experience
60+ Projects Delivered
Modern Tech Stack

React, Next.js, PHP, Symfony

Code Quality

Clean, maintainable code

Full-Stack Expertise

Front-end to back-end

Custom Software Development Services

We help tech-driven businesses across Europe build, optimize, and scale with expert PHP/Symfony and React/Next.js development. Whether you need to rescue a stalled vibe-coded project, secure an AI-generated codebase, build from scratch, or modernize legacy systems, we bring proven expertise to accelerate your growth.

Modern Tech Stack: PHP, React & Cloud Infrastructure

PHP programming language
Symfony framework

PHP & Symfony

Expert backend development with PHP 8 and Symfony 6+

React library
Next.js framework

React & Next.js

Modern frontend with React 18, Next.js 14, and TypeScript

Cloud & DevOps

AWS, Docker, CI/CD pipelines, and infrastructure automation

Database & API

MySQL, PostgreSQL, MongoDB, and RESTful/GraphQL APIs

Latest Insights

Explore our latest thoughts on software development, technology trends, and best practices.

9 min read

Churn Prediction Engineering: The Product Telemetry Signals That Actually Forecast Cancellation

Billing and support data catch cancellation two weeks too late. The signals that actually predict churn live in your product telemetry — feature adoption decay, session depth collapse, and the integration-disconnection pattern that precedes 90% of downgrades.

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11 min read

Inertia.js on Symfony: A Pragmatic Middle Path Between Twig and a Fully Decoupled SPA

When Twig has hit its ceiling but a fully decoupled React SPA feels like overkill, Inertia.js gives Symfony teams a third option — modern frontend components without an API layer, a separate deployment, or a complete rewrite.

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9 min read

Turbopack in Production With Next.js 15: What's Stable, What Isn't, and the Incremental Adoption Path

Turbopack is stable for next dev in Next.js 15, but the confidence curve for production builds with MDX, Sentry, and custom webpack loaders is a different story. Here is the honest state of Turbopack in mid-2026 and an incremental adoption path that lets your team capture dev-mode speed without betting the build pipeline.

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10 min read

Postgres Row-Level Security for Multi-Tenant SaaS: When It's Enough and Where It Quietly Breaks

Postgres RLS can enforce tenant isolation at the database layer—but connection pooling, SECURITY DEFINER functions, and Doctrine quirks create gaps that bite teams in production. Here's where RLS holds and where it doesn't.

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11 min read

LLM Observability on a Budget: The Minimal Stack for Debugging AI Features in Production

When an AI feature misbehaves in production, standard APM dashboards are useless. Here is the minimum viable LLM observability stack for small engineering teams — prompt capture, cost attribution, and the alerting rules that actually predict AI incidents.

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12 min read

Prompt Injection Defense for B2B SaaS: Beyond Input Sanitization With Defense-in-Depth Patterns

Input sanitization stops the obvious attacks and almost nothing else. Indirect prompt injection through RAG documents, tool outputs, and multi-turn context is the threat most B2B SaaS teams are not ready for. This post covers the production defense stack: structural prompt separation, tool-use allowlists, user-scoped permission propagation, output constraints that catch data exfiltration, and the red-team harness enterprise buyers will ask to see.

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Let's Work Together

Sandor Farkas - Founder and Lead Developer at Wolf-Tech Berlin

Sandor Farkas - Founder & Lead Developer

Let's discuss your project requirements. Free initial consultation to explore how we can help you achieve your technical goals.