Alexander Vance

• Spearheaded the architectural migration of a multi-tenant telemetry backbone handling 60B+ daily events, slashing p99 edge-to-storage ingestion latency from 140ms to 8.4ms.
• Engineered an in-memory distributed LSM-tree indexing engine using Rust and eBPF, achieving 4.2x higher throughput than previous RocksDB clusters and yielding $3.4M in annual compute savings.
• Directed a cross-continental team of 28 senior and staff engineers across 3 time zones; championed trunk-based development and automated canary verifications with 0 sev-1 outages over 36 months.
• Instituted company-wide RFC architecture reviews and disaster-recovery simulations for Tier-0 services across 4 AWS geographic regions with an RTO under 90 seconds.

• Designed and authored an enterprise-wide Raft-based consensus orchestrator in Go, powering automated failovers for 12,000+ stateful database instances.
• Optimized Apache Kafka topic topologies and memory-mapped IO pipelines, decreasing garbage collection pause times by 68% during peak Black Friday traffic spikes (3.2M peak RPS).
• Authored the internal distributed tracing protocol adopted across 140 microservices, reducing MTTR for complex cross-boundary incidents from 4 hours to 11 minutes.

• Built core data pipelines for secure multi-agency federated query processing over petabyte-scale distributed datasets with strict cryptographic field-level access controls.
• Refactored memory-intensive C++ network proxies into Go micro-daemons, reducing overall per-host memory footprint by 45% and eliminating memory leak vectors.
• Mentored 12 junior and mid-level engineers, 7 of whom received accelerated promotions to senior engineering roles within 18 months.

Stack: Rust, eBPF, Raft, Tokio, gRPC

• Authored an open-source, zero-copy distributed key-value storage engine in Rust garnering 4,800+ GitHub stars.
• Demonstrated 2.1x lower memory allocation overhead compared to etcd v3 in standard Jepsen partition resilience tests.

Stack: Go, OpenTelemetry, ClickHouse, React

• Constructed an agentless OpenTelemetry streaming collector able to compress and persist 1M spans/sec into ClickHouse with less than 2% CPU overhead.