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

Legacy PHP Refactoring: The Step-by-Step Process for Modernising a Symfony 2/3 Codebase Without a Rewrite

A five-phase process for modernising a Symfony 2 or 3 codebase to Symfony 7 — without the risk and cost of a full rewrite. Covering baseline measurement, upgrade paths, test-first strategies, Rector automation, and safe cutover.

Read full article
12 min read

Next.js Authentication Frameworks in 2025/2026: Auth.js v5, Clerk, Better Auth, and Lucia Compared for B2B SaaS

Choosing the wrong authentication library costs you weeks of refactoring. Here is how Auth.js v5, Clerk, Better Auth, and Lucia stack up for multi-tenant B2B SaaS built on Next.js 15.

Read full article
14 min read

Regulatory Technology (RegTech) SaaS in France: Market Landscape, Compliance Requirements, and What European Vendors Need to Know

France is Europe's second-largest RegTech market, but its compliance landscape — ACPR, AMF, CNIL, and data residency mandates — creates barriers that catch foreign SaaS vendors off-guard. This guide maps the French RegTech landscape and what you need to know before you pitch.

Read full article
9 min read

Prometheus + Grafana + OpenTelemetry + Sentry: The Integration Checklist for a Production-Ready Observability Stack

A phase-by-phase checklist for wiring Prometheus, Grafana, OpenTelemetry, and Sentry into a single coherent observability stack — covering collector config, SDK instrumentation in Symfony and Next.js, Grafana datasource wiring, alert routing, and the three integration mistakes that cause phantom alerts.

Read full article
12 min read

The Vibe Code Audit: A Structured Review Process for AI-Generated Codebases Before They Go to Production

AI-generated code ships fast but breaks in predictable ways. This guide walks through the seven-dimension vibe code audit Wolf-Tech uses with clients to find architectural, security, and operational gaps before they become production incidents.

Read full article
9 min read

Refactoring AI-Generated React: Memory Leaks, Stale Closures, and the TypeScript Patterns That Prevent Them

AI coding assistants write React components that pass code review and then leak memory in production. Here are the six most expensive patterns we find in vibe-coded frontends — and the TypeScript rules that prevent them.

Read full article

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.