Dessan
Hemrayev
builds the lines people talk over.
Backend engineer with 6+ years in production systems — VoIP platforms, real-time messaging, and the infrastructure that keeps calls connected. PhD researcher in intelligent decision support.
Six years on the wire.
I work on the backend of real-time communication: SIP servers, XMPP messaging, WebRTC gateways — the systems where a dropped packet is a dropped word. My daily tools are Flexisip, Asterisk and Openfire, wired together with Go, Python, Java and C#.
Alongside industry work, I'm a PhD researcher building models and algorithms for intelligent decision support — bringing formal methods to the operational chaos of infrastructure management.
Tools of the trade
languages
communications
platform
Selected work
Enterprise communications infrastructure
SIP registration, routing and push delivery on Flexisip; PBX logic on Asterisk; corporate messaging on Openfire — deployed and debugged down to the packet level.
End-to-end encrypted messenger
A from-scratch E2EE messenger: protocol design, key management and server architecture — where cryptography meets delivery guarantees.
Decision support for hosting management
Models and algorithms that help operators make better infrastructure decisions — the applied core of my dissertation research.
Research
PhD candidate in Management in Organizational Systems. Dissertation: models and algorithms for intelligent decision support in hosting management.
Publications and profiles are indexed below.
Engineering knowledge base
Working notes on Go, Flutter, Odoo, messaging protocols and AI — written in Markdown, versioned in Git, published automatically.