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

Stripe Integration Patterns: Subscriptions, Webhooks, and the Hardening You Need Before Launch

Missed webhooks, idempotency bugs, test/live key mix-ups — every SaaS ships a broken Stripe integration at some point. Here are the production patterns that prevent billing incidents before your first invoice goes wrong.

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12 min read

Feature Flags for SaaS: Progressive Delivery Without the Rollback

Feature flags decouple deployment from release — but without discipline, they become a graveyard that slows your team down. Learn how to design a clean flag lifecycle, choose the right flag type, and implement progressive delivery in Symfony and Next.js without paying for LaunchDarkly.

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11 min read

Multi-Region SaaS Architecture: Data Residency That Actually Holds Up in a GDPR Audit

European enterprise buyers now demand EU-only data residency — but most SaaS architectures fail the moment a real auditor starts asking questions. Here is how to build multi-region data isolation that genuinely holds up.

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10 min read

Observability for Small SaaS Teams: The Minimum Viable Stack in 2026

Datadog bills are climbing faster than seed-stage budgets. Here is the minimum viable observability stack that still catches real incidents—structured logs, OpenTelemetry traces, and SLO discipline without the enterprise price tag.

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13 min read

Usage-Based Billing Engineering: Metering, Invoicing, and the Edge Cases That Bite

Usage-based pricing is everywhere in 2026, but the engineering behind it is deceptively hard. This post covers realistic metering architectures, Stripe Metering integration, and the edge cases — proration, deduplication, plan-change timing — that quietly destroy your finance team's trust.

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8 min read

Next.js 15 Partial Prerendering: Real-World Patterns and Tradeoffs

Partial Prerendering promises static-site speed with dynamic personalization. Here is what that actually looks like in production — including the cache-invalidation bugs teams hit and the patterns that prevent them.

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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.