Joshua Shiman

joshua@systems.dev

Backend specialist with deep knowledge of Go, Rust, and cloud-native infrastructure.

Education

University of California, San Diego—Bachelor of Computer Engineering | GPA: 4.0/4.0

|2019 - 2023

Cloudflare—Systems Engineer

|2024 - Present

Rebuilt the Workers runtime scheduling layer in Rust, reducing cold start latency from 50ms to 8ms for 2M+ deployed functions.
Designed a distributed rate limiting service across 300+ edge nodes that handles 45M+ requests/second with 99.99% accuracy.

Vercel—Backend Engineer

|2023 - 2024

Built the incremental static regeneration (ISR) cache invalidation system serving 1.2B+ page requests/day across 18 global regions.
Implemented a zero-downtime deployment pipeline for serverless functions that reduced rollback time from 4 minutes to under 10 seconds.

PlanetScale—Software Engineer Intern

|Summer 2022

Developed an automated schema migration diffing tool for Vitess-based databases, adopted by 400+ production clusters within 6 months.
Optimized connection pooling for the serverless database driver, increasing throughput by 3x under high-concurrency workloads.

Railway—Backend Engineering Intern

|Summer 2021

Built the container health monitoring system that tracks 50K+ active deployments with sub-second anomaly detection.
Wrote a custom log aggregation pipeline in Go that replaced a third-party vendor, saving the company $8K/month in infrastructure costs.

Snowflake—Distributed Systems Engineer

|2021 - 2022

Implemented adaptive query planning optimizations reducing warehouse compute usage by 23% across enterprise workloads.
Designed a multi-tenant metadata isolation layer ensuring strict workload isolation across 5K+ customers.

DigitalOcean—Backend Engineer

|2020 - 2021

Built the Kubernetes cluster autoscaler control plane serving 300K+ active droplets globally.
Reduced provisioning time for new clusters from 3 minutes to 45 seconds through parallelized API orchestration.

MongoDB—Software Engineer Intern

|Summer 2019

Optimized replication sync performance in WiredTiger, reducing failover recovery time by 38%.
Contributed production patches to the Go driver improving bulk write throughput by 2.4x.

Joshua Shiman• 4h ago

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