Dmitry Sinyavin
Verified Expert in Engineering
Software Developer
Samobor, Croatia
Toptal member since April 17, 2022
Dmitry is a software developer, engineer, and architect with 20+ years of experience specializing in algorithmic data analysis, natural language processing, logistics automation, and management automation, mainly in C and Perl. He has also worked in electrical engineering, embedded systems development, barebones hardware programming with assembly languages for different architectures, industrial hardware integration, and microcontroller programming.
Portfolio
Experience
- Linux - 20 years
- Perl - 20 years
- C - 20 years
- Unix - 20 years
- MySQL - 20 years
- Web - 20 years
- OpenSSL - 5 years
- Linux Kernel - 3 years
Availability
Preferred Environment
Linux, AWS Cloud Architecture, Perl, C, Unix
The most amazing...
...logistics and warehouse automation system I've developed was for a large internet retail company.
Work Experience
Lead Developer
My Shop.ru
- Designed and developed a logistics automation system that connected 80,000 order pickup points, 600 courier services, 400 trunk routes, 200 suppliers, and 20 sorting hubs.
- Designed and developed a warehouse control and automation system that controls a warehouse hosting 1.5 million sale items, 450,000 types of products, 150,000 storage places with different capacities and mobility, and 200 workers.
- Developed multiple industrial hardware integration solutions in a full-stack approach, from system-level drivers to controlling web interfaces.
Full-stack Developer and System Administrator
RAMBLER&Co
- Took an active part in developing the back and front ends of kanobu.ru, a social network for gamers.
- Designed and developed an in-house security solution based on the OpenSSL library.
- Performed system administration for 15 physical Linux servers in a company's data center.
Back-end Developer
Bidz Inc.
- Developed the back end for the sixth-largest online auction in the United States.
- Developed a high-load event loop, modular service kernel, and memory-mapped key-value storage engine.
- Took an active part in designing the system architecture and designing and developing the database.
Software developer
Mail.Ru Group
- Built an instant messenger server with a userbase of 16 million.
- Developed high-load web applications and services.
- Created server software for Linux, FreeBSD, and Solaris.
Telephony Automation Engineer
eAccess Ltd
- Developed device drivers for ISDN telephony automation boards.
- Installed, supported, and serviced Dialogic ISDN hardware.
- Developed software for telephony automation services.
Experience
My Shop.ru
Skills
Libraries/APIs
OpenSSL
Tools
GTK+
Languages
Perl, C
Platforms
Linux, Unix, Web, FreeBSD, Solaris
Storage
MySQL, PostgreSQL
Other
System Administration, Networks, Linux Kernel, AWS Cloud Architecture, Integrated Services Digital Network (ISDN)
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