Contacts

E-Mail is a preferred contact.
If you have ideas, job offers or product questions, feel free to contact.

For employers

My rate starts at $25/h, but the final one will depend on the task complexity and urgency.
I specialize in designing and development communication software, audio/video processing systems and services integration.

I offer the following services:

• Designing solutions from scratch or based on existing ones

  - distributed communication and broadcasting services (VoIP, IM, DVB, etc),
  - interactive voice systems (call processing, etc),
  - audio/video processing systems (TTS/SST, computer vision),
  - tracking and location systems (RFID, etc),
  - neural based solutions.
  

• Turnkey service deployment

  - for automatic requests reception (Freeswitch, Baresip),
  - for customer notification (Freeswitch, Baresip),
  - call-centers (Freeswitch),
  - conferencing (Freeswitch)

• Turnkey Freeswitch deployment

  - deployment and setup DNS for multi-tenant scenario,
  - deployment and setup Kamailio/RTPEngine in some cases,
  - deployment and setup additional software, such as: Radius, LDAP, DB, etc (if necessary),
  - deployment and setup monitoring systems (nagios, your option),
  - configuring devices for PSTN/ISDN legs (Cisco, etc)

My dev stack:

• Java

  Backend: JavaSE, ActiveMQ / RabbitMQ, PostgreSQL / MySQL, Jetty/Tomcat, Nginx/Apache...
  Frontend: HTML, CSS, Javascript (jquery / qooxdoo), JSON-RPC, XML-RPC, SOAP, ...
  Desktop: Swing

• Perl

  Backend: RabbitMQ, PostgreSQL / MySQL, Nginx/Apache or builtin perl webserver...
  Frontend: HTML, CSS, Javascript (jquery / qooxdoo), JSON-RPC ...

• C

  Backend: libre, apr, wstk...
  Frontend: HTML, CSS, Javascript (jquery / qooxdoo), JSON-RPC ...

• VoIP development

  Freeswitch, Baresip, Kamailio, WebRTC

• Embedded development

  OS: Linux, OpwnWRT, FreeBSD, baremetal
  SoC: STM32, Allwinner
  Lang: Pure C, ASM

• Neural development

  Frameworks: DL4J, DJL
  Auxiliary soft: OpenCV, ONNX, SOD, ...