I design and build backend systems for SaaS products that need a reliable foundation for growth.

This can be a new backend built from scratch, a major feature added to an existing product, or a system that needs to be restructured because performance, maintainability, or development speed has become a problem.

The engagement include:

• Backend and API architecture • REST or GraphQL APIs • PostgreSQL, MySQL, or MongoDB data modelling • Authentication, permissions, and multi-tenant access • Background jobs and event-driven workflows • Redis caching and queues • Search with Elasticsearch or vector retrieval • Third-party API integrations • File and cloud-storage workflows • Docker, CI/CD, and cloud deployment • Performance and scalability improvements • Logging, monitoring, and technical documentation

I work across both the application and infrastructure layers, so decisions around APIs, databases, background jobs, caching, and deployment are made as part of one system rather than as disconnected pieces.