Adi Nišić

Selected works

Engineering system infrastructure.

Technical implementations across full-stack environments, focusing on distributed systems, AI integration, and production reliability.

No. 01 Live product
Trip Planner desktop preview

AI Trip Planner

Turns a short brief into a structured itinerary with live research, controlled generation steps, and practical export paths.

Nuxt 4LangGraphTypeScriptTavily
No. 02 Live product
fitness.nisicadi.dev
AI Coach desktop preview

AI Fitness Coach

A single-user coaching app designed around helpful fitness support, local-first persistence, and explicit scope limits.

Nuxt 3Vue 3TypeScriptlocalStorage
No. 03 Professional delivery
AI mobile product work preview

AI-Enabled Mobile Product Work

Built backend and integration layers for AI-assisted mobile products, including secure auth flows, subscription billing, webhook handling, and real-time messaging support.

  • NestJS and PostgreSQL services behind mobile features and account flows.
  • Stripe subscriptions, webhook logic, and paywall behavior for production billing.
  • Real-time messaging and synchronization patterns for active user sessions.
NestJSPostgreSQLAWSStripeWebSockets

Selected details kept high level due to client work.

No. 04 Enterprise systems

ERP Core and Dispatch Modules

Built and improved ERP and service-management features, including SQL-heavy workflows and location-aware dispatch logic.

.NET CoreBlazorMSSQLGoogle Maps
No. 05 Realtime and delivery

Messaging and Product Infrastructure

Worked across message persistence, account systems, rollout support, and the operational details that make product features reliable after launch.

RedisSocket patternsDockerLinux