App Development Company

Diamond Code

Belgrade software house building custom platforms, backends and mobile systems for enterprise and government

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TrustList summary

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.

Services

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.

Clients

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

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

Diamond Code rankings

Diamond Code is ranked on 1 TrustList ranking at #7.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Diamond Code has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

App development company · 1 ranking

#7of 13
Scheduling
It is one of 8 here listing advertising & marketing and one of 15 here listing medical.
Its profile: “The firm names enterprise and government clients, with domain work in healthcare scheduling and patient management, genetic testing portals and e-commerce.”
Of the 13 here, 16 also cover information technology and 15 also cover android; 3 also work in Delhi NCR and 3 also work in Jaipur.
Behind Connecteam, ahead of Falcn Lab.

As of 2026-11-14. Organic ranks only; sponsored placements are never ranks. How TrustList ranks