Senior architect at easy.bi specializing in backend systems and SaaS platforms. Christian turns complex business requirements into clean, maintainable code that teams can build on for years.
"A well-designed API is the foundation every great product is built on."
Areas of Expertise
Backend Engineering
Building robust server-side systems with PHP, Symfony, and modern backend stacks
SaaS Architecture
Designing multi-tenant platforms that scale from first customer to enterprise rollout
API Design
Creating well-documented, versioned APIs that third-party teams love integrating with
Enterprise Systems
Modernizing legacy backends into maintainable, testable architectures
Topics
Articles by Christian Kaspar (5)
How to Write a Software Requirements Document That Developers Actually Use
Traditional SRS documents fail 60% of the time. Learn the user story plus acceptance criteria format that developers actually use, with templates, common mistakes, and collaboration frameworks.
What Does Custom Software Development Actually Cost in 2026?
Real cost breakdown for custom software in 2026. DACH vs. Eastern Europe vs. offshore rates, 5-year TCO, and EUR pricing by project type.
Fixed-Price vs. Time-and-Materials: Which Model Will Not Blow Up
Honest comparison of fixed-price and T&M contracts for software. When each fails, hybrid models, and how to protect budgets with real data.
Shopware Plugin Development: Build vs Marketplace vs Custom
Shopware plugin development: marketplace vs custom vs extended. Decision framework, cost analysis, and 8-point quality checklist.
The Symfony Decision: When PHP Is the Right Enterprise Choice
PHP 8+ delivers 3x performance gains and Symfony provides enterprise-grade architecture out of the box. Learn when PHP beats Java and Node.js for enterprise applications, how API Platform accelerates development, and why 77% of server-side web runs on PHP.
Editorial Standards
Every article on the easy.bi blog is reviewed for technical accuracy and follows our editorial guidelines. Content is grounded in industry data, verified statistics, and hands-on experience from over 100 enterprise projects delivered across the DACH region.