Michael Doilnitsyn Email & Phone Number

St Petersburg City, Russia

Saint Petersburg, Russian Federation

high load video streaming platform (RTMP, HLS, nginx)- architecture & design;- bandwidth control;- POC & production development, integration, troubleshooting;- kafka connection;- Low Latency HLS;high load server side development (java8, tomcat, spring, mysql, hibernate):- real-time stream events delivery: architecture, implementation, deployment;- new features development;- infrastructure cost reduction, performance optimization;- legacy code support;- memcached/redis caches efficiency improvements;mobile video communication cross-platform C++ core development:- introduced and implemented HD video feature;- enabled MT (multi-threading) in software H.264 video codec;- redesigned video capture and video render pipelines;- redesigned CPU control;- full redesign of bandwidth estimation algorithms (QoS);- bug fixing for UDP based communication protocol on both client and server side;- improved IPv6 support and DNS resolve on Android and iOS platforms;- troubleshooting, code refactoring;

Saint Petersburg, Russian Federation

Lead software engineer role in a small Agile team. Responsible for multimedia features in video conference product including server, softswitch and client software. Design, investigation, development, optimization and bug fixing of multimedia features in multi-platform, multi-threading open source based C++ environment.

Saint-Petersburg

Product: AMD Catalyst (multimedia driver software development)- Windows multimedia driver development (DXVA, Video Processing);- Linux XvBA driver development;- bug fixing and support;- team leadership (3 engineers);

Saint Petersburg, Russian Federation

Product: AMD Catalyst (Windows Graphics Core Development)- Bug fixing leadership (8 engineers);- Feature development leadership (3 engineers);Achievements:- Led Eyefinity 2.1 project (KMD part) and completed with a honor;

PC Codec applications technical lead (team coordination, customer relationships and technical support). My primary responsibilities include video codec API design, multi-platform multi-thread system programming, build, release and technical support coordination for a variety of AAC and H.264 codec related products (SDK and components) on different platforms (Win, Linux, Mac). As a senior engineer of H.264 Streaming Pack products (a set of DirectShow and DMO filters for Windows including AAC & H.264 Encoder/Decoder DMO, TS Muxer/Demuxer, RTP/RTSP connectivity) I am responsible for research and development of key technologies, client consulting and support. Also I coordinate activities of other development teams in codec-related projects.

During those years I was performing responsibilities of project/team leader of PC H.264 video codec development effort. The codec line consisted of a number of products and included two consumer (end-user) codecs, one corporate (professional) codec and many software development kits (SDK) for PC and PocketPC computing.I was responsible for work schedule, release and product management, review of source code, client communication, bug fixing, SDK API design, system & application level and multi-threading development.Platforms: Windows (9x, 2k, XP), Linux (SuSe, RedHat), PocketPC (Windows CE);Tools: Microsoft Visual C++ Compiler, Intel C++ Compiler, GNU gcc, GNU make, GNU nasm, ASProtect, InstallShield;

Project: protobuild.comObjective: enterprise program management portal (construction management solution with document workflow).Team and Role: project lead of 4-workers team.Platform: JBoss 3.x, PostgreSQL, Linux.Responsibilities: project management, object-oriented analysis and design, database design and development, core code architecture design.Technologies: J2EE + CMP 2.0, SQL, JSP, HTML+JavaScript, CVS, ANT, XDoclet, Mantis.; One of this project important issues was a necessity to use as much open-source software as possible to make the system light-weight and not expensive for the first time installation. Going forward in this direction we have chosen Linux, PostgreSQL database (having Oracle as a future target), JBoss application server.The project included about 100,000 lines of Java code and had a document workflow engine as it's main wealth. We have designed workflow engine with abstract workflow definition which was stored entirely in the database. There were 15 document types defined and a lot of types of documents to be added in future releases. In order to implement unified document workflow we have used pluggable classes - modules - on both server core and web sides.We used ANT tool for project make purposes, XDoclet to generate remote interfaces, data objects and all other J2EE-specific stuff, custom ANT tasks and Perl scripts to generate specific sources like some Java Script files, CVS to store all the project files in one place.

Project: WSMNObjective: configuration management system - a suite of products to store, manipulate and distribute configuration data which includes user accounts, NFS, NIS, OS, hardware, patches, product installations etc.Team and Role: project leader & architect in 4-workers team.Platform: Linux, J2EE (JBoss), Oracle.Responsibilities: leading technical specs design, design & development of the database schema, core API, web adapter, modular software architecture.Technologies: JMX, JMS.

Project: PIExpert 4Customer: Power Integrations, Inc. (http://www.powerint.com/)Objective: develop reports engine, taking a part in core code and GUI development, design and development of QA validation tests.Team and Role: software developer in 4-workers team.Platform: Windows, Visual C++, MFC.Responsibilities: design & implement reports engine, XML file format support, taking a part in core code development, bug fixing, re-architecture and error handling improvements.Technologies: MS Visual C++ 6.0, MFC, XML, Starteam, Visual Test, Visual Basic.Achievements; designed and realized reports engine allowing simple editing of reports templates in the Excel and further code generation via include files, created validation tests based on Visual Test 4.0 scripts and Visual Basic application.

Project: MySpace.comCustomer: MySpace (http://www.myspace.com)1. Objective: design and development of file upload/download Unix-based solution as a part of whole plan of migration to HP/UX platform.Team and Role: software developer and project leader in 2-workers team.Platform: HP/UX.Responsibilities: design & implement highly scalable and stable file upload/download HTTP-based solution.Technologies: gcc, Sybase database client library.Achievements: whole system design, development of the fork-based middle-tier daemon intended to perform as a request broker between HTTP server and MS SQL and Sybase databases. The main goal was to hide database details from HTTP server and reuse database connections in the high scalable manner using multiprocessor 64-bit architecture.2. Objective: data migration from MS SQL 7.0 to Oracle 8i database as a part of whole plan of migration to HP/UX platform.Team and; Platform: HP/UX.Responsibilities: prepare full technical documentation and technology of data & database structure migration from MS SQL 2000 to Oracle 8i.Technologies: Oracle Migration Workbench and Perl scripts.Achievements: developed and tested fully functional migration technology including automatic creation of sequences and large text data transfers.

Project: SendOrder.comCustomer: SendOrder.com (http://www.sendorder.com), Steve Mezak (accelerance.com)Objective: Business-to-Business e-commerce interchange web portal. Online order management, business transactions & notifications.Team and; 5/8-workers team.Platform: SunOS 5.6-5.7, Apache 1.3, Oracle 8i, JRun 2.3.3, JDK 1.1/1.2, JavaMail, Cryptix.Responsibilities: project analysis and design, database design and development, Java core API development, Java servlets and JSP pages development.Technologies: Java 2, PL/SQL, Java servlets, JSP, JavaScript, business XML (RosettaNet).Status: public release 1.5.2.; This project was started by Xmedia Corp. and VSS Inc. got it after my 2-weeks involvement into development as a contractor. I was fortunate in gathering a very good harmonious team. My responsibilities included specs development & discussion, work schedule preparation, major technical decisions making, team coordination, database design, core code development, site support etc.I think that my main achievements were team spirit inspire, correct technical decisions, good relations with Customer, quick problem solving.

Project: Internet Computer Shop (development)Customer: American Starlex, Intl. (http://www.amstar.com)Application: object-oriented database library for online e-sales Web-site.Team and Role: project architect and software developer in 3-workers team.Objectives: to provide Internet Computer Shop developer and operator with flexible data describing and data retrieval mechanism in the form of Perl library scripts, integrate into existing and working 24/7 site.Platform: FreeBSD 2.2.7, Perl 5.x, MySQL, Apache 1.3.Responsibilities: project analysis and design with direct Customer conversation, database development, development leadership.Technologies: SQL, CGI, HTML, Perl.Achievements; easy and flexible data model describing mechanism eliminates possible data duplicates and inconsistency and decreases very much site developer's efforts in entering and validating business critical information, powerful search capabilities make the site more useful and attractive for users, universal user GUI generation reduces the time required for new model classes support, a lot of command-line utilities for export/import data files.Status: completed and successfully incorporated into working site.Our goal was to move the site from file-based data storage to a SQL database - to make data search and modification more quick and easy, to provide strict data model. We fulfilled the schedule and developed object-oriented data engine in 2 months. Incorporation into working site was a much more hard work and required to develop a special Database Designer tool and other sweet things.Later on I have implemented special caching mechanism, which dramatically accelerated data queries performance.

Project: NetAccelerator 3.0 (development from scratch)Customer: Enjoy! Software (http://www.enjoysoft.com), IMSI (http://www.imsisoft.com)Team and Role: software engineer in 2-workers team.Objectives: to develop a high competitive, easy-to-use product with a large set of new features including multi-threading kernel, HTTP and FTP download, bookmark management and so on.Platform: Visual C++ 6.0, Windows NT 4.0, Windows 95-98.Responsibilities: was involved in design, analysis and coding, especially object-oriented multi-threading core, WinInet and WinSock programming, HTML parsing, GUI design and programming.Status: ready for shipping; The product is now been selling by IMSI but became out of date: it was developed for Windows 95 and Windows NT and doesn't really work under Windows 98 and Windows 2000.My role was in core design, fast and stable HTML parsing code (parses even image and executable files), partial ZIP file download, multi-threading HTTP/FTP download code.We used extensively OLE/COM and DDE technologies for tight web browser integration, WinInet and WinSock for FTP/HTTP multi-threading downloading.