Rooslan Khayrov

Email:

khayrov@gmail.com

Phone:

+41 76 5369146 cell

Location:

Zürich, Switzerland

GitHub:

khayrov

G+

Experience

• April 2014 — current, software engineer in Google, Zürich.
• November 2013 — March 2014, software developer in ShazzleMail, Tashkent.

  Contributed to the cross-platform (GUI-less Qt-based) secure e-mail system core:

  • Rewritten the legacy network relay subsystem (which allowed NAT/firewall-ed peers to participate) with maintainability and performance in mind, while keeping protocol-level compatibility.
  • Introduced pipe-lined background message processing subsystem for tasks like encryption/decryption, spam-filtering, and system notifications.
  • Contributed numerous stability, security and performance improvements to the mail delivery, storage, and retrieval subsystems.
  • Participated in the overall system design process, drafting protocols, identifying potential security threats and performance bottlenecks.
• June 2012 — August 2013, software developer in Sistematika IT, Tashkent.

  Lead developer in the online gaming project, responsible for the system design and some of the technology choices. Contributed to the following subsystems (in the decreasing order of time spent):

  • Back-end: synchronous (Pyramid) and asynchronous (Tornado) Python web frameworks, using SQLAlchemy to access PostgreSQL storage, and Redis as a high-performance storage/message bus.
  • Front-end: dynamic interface with real-time updates based on Knockout.js MVVM and (mostly) static HTML combined with JSON REST API and SockJS.
  • Game server (defunct): written from the ground up in C++ using Bullet physics engine with game logic extensible in Lua.
  • Game client: ported AI code to C# during technology transition period. Created an engine-independent module used in Unity.
• September 2011 — March 2012, software developer in Active Cloud, Tashkent.
  • Design and implementation of .UZ domain registration and management plugin for PBA. The module was successfully deployed, greatly reducing response time for customers' requests and technical support workload. Developed by a two man team in C++ with the use of STL, Boost, Parallels proprietary libraries, SQLite, etc.
  • Support and locale-specific adaptation of document generator (producing printable invoices, contracts etc. from PBA billing) written in Ruby on Rails.
  • Miscellaneous automation of hosting provider and domain registrar operations: mostly bulk data retrieval and report generation. Utilities were written in Java and Python.
• May 2007 — July 2011, contractor developer in ePoint Systems Ltd (remote work).

  ePoint vending machines: a number of systems selling services and goods in exchange of cryptographic micropayments. Some of the code is available under the GPL and can be found in the publicly accessible repository.

  • HotSpot — OpenWrt-based firmware for selling Internet access, primarily used in commercial SOHO routers. Successfully deployed in a number of catering establishments, stores, and communities in Budapest.
    Written mostly in C for cryptography-related and performance sensitive parts, and Lua for much of the business logic and web interface, with some early glue in sh and awk, and access control relying on iptables.
  • PubTerm — Ubuntu-based public terminal selling guest session time, mostly targeted at and deployed on interactive kiosks. Contributed the following parts:
    • PAM module allowing use of one-time codes for login and screensaver unlocking. Written in C, uses D-Bus to communicate with the controlling daemon.
    • Core logic daemon, verifying one-time codes with the issuing server, controlling user session lifecycle, performing security monitoring. Written in Python.
    • Page-counting CUPS filter blocking or passing through print jobs based on the current user quota. Written in C.
  • Webmon — client-side web application for monitoring data pushed from devices (e. g. ePoint HotSpots) to the Fluidinfo cloud database. Written in Java using GWT.
  • Thiblo (defunct) — blogging and collaborative editing system with support for commenting specific words and sentences. Back-end written in Python using Django framework. Administrative interface used GWT.

Education

• 2007—2009, Tashkent University of Information Technologies, MS diploma in “software of computer system and networks.”
• 2003—2007, Tashkent University of Information Technologies, IT faculty, BS.

Skills

Programming languages and platforms

• Plain C in POSIX environment.
• C++ — recently started catching up with the 2011 version of the standard after a prolonged break. Was pretty excited by template metaprogramming and DSLs back in the days, but prefer much more conservative approach now. Actually, I prefer not to use it unless absolutely have to.
• Python — favorite language for web development, rapid prototyping and integration.
• JavaScript — good parts only, as per Crockford's definition.
• Haskell — favorite language for rapid prototyping and integration when no one else sees it.
• Lua — so small it hardly counts, but one of the most elegant dynamic languages anyway.

Also, languages I've used occasionally, but don't consider my knowledge to be “enterprise-ready”:

• Java — comfortable with language proper and SE library, but no experience with EE.
• C# — a few kLOCs in version 2.0 language (i. e. pre-LINQ), mostly algorithmically heavy code.

Operating systems and tools

Using Linux exclusively for work and entertainment since 2007, mostly Debian-based systems. Limited system administration and software packaging experience. Experience with (and addiction to) version control (Git, Subversion) and issue tracking (JIRA, Trac) systems.

Favorite computer science toys

Actively interested in functional programming, type systems, parsers and formal grammars, compiler construction (particularly LLVM project).

Personal information

Birth date:

January 1st, 1988.

Marital status:

married.