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.

11 min read

A Codebase Health Scorecard: Metrics That Tell You When to Refactor vs Rewrite

Refactor or rewrite? Most teams argue on instinct. This codebase health scorecard gives you concrete metrics to make the decision with evidence, not emotion.

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10 min read

jQuery to React Without a Rewrite: An Incremental Frontend Modernization Path

A full frontend rewrite is the riskiest way to escape jQuery. This guide lays out a practical, island-by-island migration path so production keeps shipping while React gradually takes over.

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9 min read

Idempotency Keys for SaaS APIs: Making Retries Safe Across Payments and Provisioning

Without idempotency keys, a retried API request can charge a customer twice or provision a workspace twice. Here is how to implement exactly-once semantics for the operations that matter most.

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11 min read

Rate Limiting a Multi-Tenant API: Fair-Use Quotas Without Punishing Good Customers

A blunt rate limit protects your API but alienates your best customers during legitimate traffic spikes. Here is how to design per-tenant quotas, token-bucket policies, and fair-use tiers that keep the system safe without punishing honest usage.

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10 min read

Scheduled Jobs and Cron at Scale: Reliable Recurring Tasks in Symfony and Node

Cron on a single server fails silently the moment that box dies or a job overruns. This post walks through designing scheduled and recurring tasks in Symfony and Node with distributed locking, observability, and failure handling that survive real production.

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9 min read

A/B Testing on the Backend: Server-Side Experimentation for SaaS Without a Vendor

Client-side A/B tools flicker, leak data, and cannot touch server-only logic. Here is how to build a server-side experimentation system you own: deterministic assignment, exposure logging, and analysis - no third-party vendor required.

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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.