Main responsabilities: maintaining and improving automated mitigation systems Worked from home (part of the time), took oncall shifts Worked on a new system to collect packets and display analytics to customer (samplerd) Hand-optimized eBPF assembly Extended and automated data extraction for public reports like “Network-layer DDoS attack trends for Q4 2020” ✓ eBPF, XDP, Docker, TCP, UDP, dos attacks, clickhouse ...
Aim: benchmark, develop and compare various performance optimizations in l4drop, a DoS mitigation system Worked from home almost from the beginning Presented the methodology and results at the Linux Plumbers Conference and in my master thesis ✓ eBPF, XDP, TCP, kernel probes ...
Aim: explore performance analysis technics with eBPF (extended Berkeley Packet Filter) Wrote IP-whitelisting tool using XDP for DDoS protection of a Ripple blockchain connector Extended Vector monitoring tool with additional eBPF modules : packet analysis (HTTP & WebSocket, UDP & DTLS), garbage collector visualization for NodeJS using USDT probes Co-authored a research paper outlining innovative performance monitoring schemes Worked in English on a daily basis. ✓ eBPF at different levels, Docker, Python, Go, TCP, UDP, Websocket ...
Stored recurring and one-time orders; planed and recorded product delivery to bill each customer Saved hours each month: planning and billing delivery was done manually on paper before ✓ Android, Java, SQL, SQLite, Room ORM ...
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