Backend Architecture
System design for scalable, maintainable applications. From database schemas to service architecture, I build backends that grow with your product without accumulating technical debt.
Available for new assignments
Solid Backend Architecture
20+ years of backend development. Systems that scale, code that endures.
PHPLaravelMagentoMySQLDocker
About Sagalogi
Under the name Sagalogi, I, Bonno, work as a freelance developer. With over two decades of experience, I build robust and scalable web applications. The name draws from the Nordic tradition of sagas—reflecting a focus on craftsmanship and long-term legacy.
Every system I build is designed with a clear purpose: to be reliable, maintainable, and pragmatic. While my core expertise is the backend (data layers, APIs, and architecture), I seamlessly handle accompanying frontend work when a project requires a full-stack approach.
Based in Gävleborgs län, Sweden, I partner with businesses globally who take their technology seriously and need a developer who does the same.
20+ Years of Experience
50+ Platforms & Systems
30+ End Clients
Expertise
Decades of depth across the full backend stack
Backend & Frameworks
- PHP 20+ yrs
- Laravel 10+ yrs
- Magento / Adobe Commerce 12+ yrs
- AI-Assisted Development Current
Data & Architecture
- MySQL / Percona / MariaDB 20+ yrs
- REST & GraphQL APIs 12+ yrs
- Cloud Architecture 8+ yrs
DevOps & Infrastructure
- Linux / Ubuntu 20+ yrs
- Docker 7+ yrs
- DNS (PowerDNS & Bind9) 15+ yrs
- Git 15+ yrs
Services
Focused expertise for complex technical challenges
Magento & E-commerce
Over a decade of Adobe Commerce and Magento 2 expertise. Custom module development, performance optimization, and complex integrations with ERPs and payment gateways.
Database Engineering
Query optimization, schema design, and data migrations. I work extensively with MySQL, Percona, and MariaDB at scale, turning slow bottlenecks into fast, reliable systems.
API Development
Design and implementation of RESTful and GraphQL APIs. Well-documented, secure, and built for long-term consumption by web platforms and mobile clients.
Technical Audits
Comprehensive reviews of existing codebases, infrastructure, and architecture. You receive a clear, prioritized report of risks, bottlenecks, and actionable improvements.
DevOps & Infrastructure
Beyond the code, I set up and maintain the underlying infrastructure. From reliable Linux server configurations to Docker containerization and custom DNS management.
Let's collaborate
Looking for a solid technical foundation for your project?