Sergei Afonchenko

Senior Full Stack Developer

Teramind

Mar 2022 - Current (4 years 5 months)

Senior Full Stack Developer As a Senior Full Stack Developer, I have architected and maintained complex distributed systems, ensuring high scalability and reliability. My expertise spans the entire software development lifecycle, from designing robust data structures and efficient algorithms to leading cross-functional projects. I am proficient in Java, Python, Go, Rust, TypeScript, and C++, consistently applying rigorous code refactoring and thorough code reviews to maintain high engineering standards. I have a proven track record in debugging complex issues and creating comprehensive technical documentation to streamline team processes within Agile Scrum environments. Additionally, I integrated artificial intelligence tools into my daily

Senior Full Stack Developer

Emergn

Jul 2021 - Apr 2022 (10 months)

• Led development of a Web SPA with a React frontend and Node.js API, improving user engagement by 27.5%. • Implemented multiprocessing in a data processing backend, increasing data processing speed by 45.2%. • Guided project direction and ensured timely delivery, decreasing time-to-market by 22.7% • Leveraged Go to architect and build distributed high-performing systems, ensuring robust scalability and efficiency across the backend infrastructure.

D

Full Stack Developer

DevExpress

Jun 2020 - Jul 2021 (1 year 2 months)

• Optimized web application performance, reducing page load times by 32.1% and improving user retention by 14.6%. • Implemented a new CI/CD pipeline, reducing deployment times by 57.8% and minimizing downtime during releases. • Collaborated with cross-functional teams to enhance product functionality, resulting in a 23.9% increase in sales.

Full Stack Developer

STC Group

Mar 2019 - May 2020 (1 year 3 months)

• Optimized backend processes, reducing resource consumption by 21.5% and cutting operational costs by 15.8%. • Automated testing procedures, decreasing bug occurrences by 19.4% and accelerating release cycles by 25.3%.

Sergei Afonchenko

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