Why are you interested in low-level work: Raspberry Pi, UART, physical and network protocols, and C++?
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Python
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What is your experience with Docker? Which languages do you most often use in your work?
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Have you worked with hardware, microcontrollers, single-board computers, Linux administration: networks, routing, and user permissions? Have you worked with Zabbix or Grafana?
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What databases have you worked with the most?
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You optimized the Docker image from 1.2 GB to 250 MB through multi-stage build. What occupied space, what stages did you split, and what base images did you use?
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How do you debug a problem when a Docker container suddenly dies? What commands do you use and what do you look at in the logs?
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How do you diagnose slow queries in PostgreSQL in production? What tools do you use?
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You reduced report generation time from 15 to 1.5 seconds. Tell us more: what kind of reports were these, what data was used, and how was selective caching organized in Redis?
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