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ALEKSEI SAFRONOV

@alekseisafronov

Senior Software Engineer at Restream Media LLC, building media backend services and integration tests for real-time streaming.

Armenia

Message

At Restream Media LLC, I engineer and maintain an integration testing system for media backend components using the Docker API and GitLab CI pipelines. I also enhance high-load backend services and optimize media processing pipelines for throughput and reliability.

I work on network-aware media delivery using adaptive-bitrate streaming patterns such as HLS and MPEG-DASH, alongside RTP, RTSP, and WebRTC. I integrated AV quality monitoring, including VMAF and custom measurements, into transcoding pipelines to surface regressions.

At Nextologies LTD, I developed a Speech-to-Text service for real-time subtitles and closed captions, and a Commercial Detection system for TV broadcast feeds that received the NAB Show 2022 award for excellence. I also created a Caption Inserter application for converting caption formats and integrating captions into H.264 bitstreams.

Through Upwork, I worked on more than 70 media data processing projects across embedded devices and cloud-based streaming pipelines, contributing to products including Zencastr, Snapscreen, SightData, FelixSmart, and Carbon Trainer. Earlier, I developed C firmware for ARM and AVR devices, worked with TCP/IP and sockets, and built control and calibration software.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer (Media Backend)

Current

Restream Media LLC

Mar 2022 - Present (4 years 8 months)

Engineered and maintained an integration testing system for media backend components using Docker API and GitLab CI pipelines. Managed enhancements of high-load backend services using C/C++, Python, and Go, optimizing media processing pipelines for throughput and reliability.

C C++Python Go Docker Gitlab CI HLS MPEG Dash RTP RTSP WebRTC VMAF Media Processing Backend

C and Python developer

Upwork

Feb 2016 - May 2022 (6 years 3 months)

Owned a diverse portfolio of 70+ projects focused on media data processing, including implementations on embedded devices with hardware acceleration and cloud-based streaming pipelines. Contributed to several notable projects including Zencastr, Snapscreen, SightData, FelixSmart, and Carbon Trainer.

C Python FFMPEG GStreamer Video Streaming Embedded Systems Cloud Computing Hardware Acceleration

Senior Software Developer (Video Streaming)

Nextologies LTD

Feb 2020 - Mar 2022 (2 years 1 month)

Developed a Speech-to-Text service that automates real-time generation of subtitles and closed captions using a custom algorithm. Engineered a Commercial Detection system that identifies commercial content in TV broadcast feeds, which received the NAB Show 2022 award for excellence.

Speech to Text Closed Captioning H264 Broadcast Commercial Detection Video Streaming

Engineer

Rubicon-Innovation R&D Company LLC

Mar 2014 - Feb 2020 (5 years 11 months)

Developed technical specifications for analog and digital devices, designed schematic circuit diagrams in Altium Designer, and performed PCB layout. Developed Verilog-based projects for Xilinx CPLDs and FPGAs, and implemented control and calibration software using Qt.

Altium PCB Layout Verilog Xilinx FPGA CPLD Qt Framework ESKD BOM Simulation

Security and Fire Alarm Installer

PENTAKON LLC

Oct 2013 - Dec 2013 (2 months)

Installed fire and security alarm systems at facilities of Gazprom Transgaz Ukhta LLC. Laid optical cable systems for video surveillance and installed metal frameworks and cable trays.

Fire Alarm Systems Security Systems Fibre Optic Cabling Video Surveillance

Electronics Engineer

STT Research Institute CJSC

Jul 2010 - Oct 2013 (3 years 3 months)

Developed C firmware for analog and digital devices based on ARM and AVR microcontrollers using IAR and GCC toolchains. Participated in hardware development and worked with interfaces including Ethernet, SPI, USART, USB, HDMI, and SDI.