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.

10 min read

Agent Evaluation Frameworks: Testing Non-Deterministic AI Features Before Release

Traditional tests assume the same input gives the same output. Agentic AI features break that assumption. Here is how agent evaluation frameworks let you ship non-deterministic features with confidence instead of crossed fingers.

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8 min read

RAG Evaluation Metrics: Measuring Retrieval Quality Before You Blame the Model

When a RAG system gives a bad answer, teams blame the LLM and start swapping models. The real fault is usually retrieval. Here are the evaluation metrics that locate the actual bottleneck before you waste a sprint on the wrong fix.

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8 min read

Document Chunking Strategies That Actually Improve RAG Answer Quality

Chunking is the most under-rated lever in RAG quality. This guide compares structural, semantic, and overlap-based document chunking strategies and the trade-offs that actually move retrieval accuracy.

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9 min read

Build an MCP Server for Your SaaS: A Practical Symfony Implementation

Enterprise customers are starting to ask whether your product has an MCP server. Here is a practical, production-minded guide to building one in Symfony: SDK choice, tool design, OAuth, multi-tenant scoping, and the testing setup that keeps it safe.

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9 min read

Hybrid Search With pgvector and BM25: Better Answers Without Elasticsearch

Pure vector search misses exact terms, pure keyword search misses paraphrases. Here is how to combine pgvector with Postgres full-text ranking into one hybrid query, including Reciprocal Rank Fusion in plain SQL.

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9 min read

The DPA Behind the Contract: Engineering Controls That Make a Data Processing Agreement True

Buyers no longer file your Data Processing Agreement and forget it. Their security teams check whether the controls behind each clause actually exist. This post maps the common DPA commitments to the engineering evidence that proves them: subprocessor inventories, erasure workflows, breach runbooks, and audit-ready logs.

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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.