Diamond Code

Diamond Code is a software development company in Belgrade, Serbia, that designs, builds and runs custom systems from the first specification to production. It works for enterprise and government clients and describes more than 14 years in the field.

What Diamond Code offers

• Platform engineering — web applications, admin dashboards and internal tools built with React, Vue or server rendering.
• Backend and APIs — REST and GraphQL interfaces, microservices, message queues and data pipelines.
• Cloud infrastructure — architecture, CI/CD, containers and monitoring on AWS, GCP or dedicated servers.
• Mobile systems — native and cross-platform apps with offline storage and secure data handling.
• SaaS platforms — multi-tenant products with subscription billing and role-based access.
• Integrations and data — API gateways, middleware for legacy systems, analytics and reporting pipelines.

Who it works with

The firm names enterprise and government clients, with domain work in healthcare scheduling and patient management, genetic testing portals and e-commerce. Earlier projects include a doctor appointment system and a brand and website rebuild.

Key facts

• Based in: Belgrade, Serbia
• Experience: more than 14 years
• Delivery: two-week sprints with staging releases and post-launch maintenance