sana@kwon:~$
$ whoami

Systems Engineer | Open Source Contributor

Currently @ Dataflux (distributed storage)

Seattle, WA

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$ ls -la projects/
total 4
permissionsnamesizemodified
-rwxr-xr-xquorumkv/
Distributed key-value store built on Raft consensus. Linearizable reads, automatic leader election, log compaction. Written in Go, used in production at two companies for config management.
GoRaftgRPC1.2k stars
14KJan 2026
-rwxr-xr-xdrift
CLI tool for zero-downtime schema migrations across distributed databases. Generates migration plans, applies them incrementally with automatic rollback. Supports PostgreSQL, CockroachDB, TiDB.
RustSQLCLI680 stars
8.4KNov 2025
-rw-r--r--bytecask
Rust library implementing a log-structured hash table for fast on-disk KV storage. Inspired by Bitcask. Append-only writes, in-memory key directory, compaction. Published on crates.io.
RustStorage Enginecrates.io340 stars
5.1KAug 2025
-rwxr-xr-xlattice-ui/
Real-time monitoring dashboard for distributed systems. Cluster topology, node health, replication lag, throughput metrics. Custom WebSocket streaming protocol. Deployed at Dataflux.
TypeScriptWebSocketCanvasInternal
22KMar 2026
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$ cat about.txt
I build systems that stay up when things go wrong.
 
For the past eight years I have worked on distributed
storage, consensus protocols, and database internals.
I care about correctness first, performance second,
and simplicity always.
 
Most of my work is in Go and Rust. I contribute to
open source because I learned everything from reading
other people's code. I write about systems design
on my blog when I have something worth saying.
 
Outside of work: rock climbing, reading papers,
and making pour-over coffee very slowly.
$ git log --oneline --career
a3f7c21Senior Systems Engineer @ Dataflux
Leading the storage engine team. Designing the next-gen replication layer for multi-region clusters. Reduced P99 read latency by 40% through a custom page cache.2023 - now
e91b4d8Systems Engineer @ Veristream
Built a CDC pipeline processing 2M events/sec. Implemented exactly-once delivery semantics on top of Kafka.2021 - 2023
4c02f9aBackend Engineer @ Nimbic
Core contributor to the internal service mesh. Wrote the circuit breaker and retry logic used across 200+ microservices.2019 - 2021
8d3ea17Junior Developer @ Stackwell
First job. Full-stack work on a monitoring SaaS. Learned that writing correct concurrent code is hard.2018 - 2019
0000000B.S. Computer Science @ University of Washington
Focus on operating systems and networking. Senior thesis on vector clocks in eventually consistent systems.2014 - 2018
$ echo $LINKS
github github.com/sanakwon
blog sanakwon.dev/blog
email sana@kwon.dev
linkedin linkedin.com/in/sanakwon