Dmitry Olshansky Email & Phone Number

Russia

Москва, Москва, Россия

Moscow

Орхус, Дания

Working on the Dart programming language.

Moscow

Contractual research and development work. Main topic is optimization of Spark machine learning toolkit, in particular GraphX and MLLib components. Made a couple of patches that speed up triangle counting, also introduced more compact data structures that save 50% of memory consumption for large graphs.

Moscow

Tasked with improvement of performance and quality of the search engine. Mainly carried out performance experiments and supervised the transition of successful ones to the production.Gained some new insights for tuning of the JVM-based solutions. Did an introductory tech talk on the D programming language.

Moscow

I was responsible for every piece of our technology stack and application architecture. Also I shared responsibilities of IT operations manager. That is working on deployment, CI, various tools and specially designed staging environments. Aside from that - the usual team coordination and training, part-time development of certain libraries and/or critical elements of the infrastructure.

Moscow

My main task as a part of R&D team was developing a secure software system for multi-factor authentication and signature for cloud services. Technologies used are Java on the server-side and plain C inside of hardware security modules.At this job I've build up my understanding of cryptography and IT security in general. I also enjoyed writing a protocol compiler for the interface between an HSM and the server application (a lot like XDR).Also contributed a few (yet to be reviewed) patches to OpenSSL while implementing new (2012) GOST digitla signature and hash function in the firmware.http://rt.openssl.org/Ticket/Display.html?id=3311http://rt.openssl.org/Ticket/Display.html?id=3328

GSOC 2012 "Extended Unicode support"A Google summer of code project. This time a proposal is a library that provides access to advanced Unicode algorithms and data structures. Including topics like normalization, case-agnostic comparison and breaking strings into user-perceived characters.Is a spin-off from my previous GSOC project, where I had to learn much about Unicode which is often neglected topic. In the end during this project I've learned more intricate details then I probably would have ever wanted to.

My first large open-source project funded by Google as part of Google Summer of Code. The goal was to construct a modern and fast regular expressions library for the D programming language. Shortly after showing some excellent results in a few benchmarks went through the review process and become part of D standard library in September 2011. Notable features include ability to compile-time generate matcher's code and great Unicode support enabled by default.Original source with complete history before inclusion into the standard:https://github.com/DmitryOlshansky/FReD(these days it hosts only benchmarks and tools)

Кандидат Технических Наук, Инофрмационные Системы И Процессы, 5

Магистр, Прикладная Математика И Информатика

Education record