We design and build messaging systems, presence, notifications, live state synchronization, and resilient session flows for products where timing, continuity, and reliability matter.
Real-time products succeed when the interaction model, delivery guarantees, offline behavior, session recovery, and observability are designed together instead of bolted on.
We implement the flows users feel directly, from conversations and event streams to collaborative state and time-sensitive product behavior.
Real-time systems need continuity when devices change, sessions expire, or connectivity drops, so recovery paths are part of the design.
We design how events move through the system and how users see successful delivery, delays, retries, and failure states.
We keep backend state explicit enough to support monitoring, incident response, scaling, and safe iteration without hidden behavior.
That means visibility into delivery states, recovery paths, presence behavior, backend coordination, and the operational controls needed to debug live issues under pressure.
Yes. We work on messaging, notifications, presence, read state, session continuity, and the backend control plane around them.
Yes. We can stabilize delivery, recovery, observability, and backend behavior without treating the whole system like a greenfield rebuild.
Yes. Recovery logic and failure visibility are part of the system design, not something we leave for later.
We can help shape the interaction model, define delivery guarantees, and build the backend discipline real-time products need.
New product work, platform rebuilds, delivery support, or long-term engineering help. We usually reply within 1 business day.
Best for project briefs, product discussions, and technical requirements.
office.craftec@gmail.comBest for urgent questions, quick introductions, and time-sensitive follow-up.
381642187111Meetings in Novi Sad are available by appointment.
Balzakova 42, Novi Sad, SerbiaAvailable for calls and meetings during business days (CET).