Senior / Staff Engineer - Platform

New York City, Remote. Posted 6 months ago

The role

You will build and maintain infrastructure, CI/CD workflows, and observability for the Sei blockchain. You will own release engineering, performance testing, and security incident response.

What you will do

Build and maintain Docker/Kubernetes harnesses for stress and scale testing.
Run multi-cloud footprint with reliability and cost targets.
Consolidate CI/CD into reusable, standardized workflows.
Own version tagging, hotfix paths, PR review scaffolding, and the full release lifecycle.
Manage observability for metrics, traces, and logs using OpenTelemetry.
Run automated chaos and performance tests in CI.
Run the bug and vulnerability workflow including auditors, Immunefi, triage, and postmortems.

Required qualifications

5+ years building production systems at scale.
Security fundamentals including threat modeling and common vulnerability classes.
Distributed consensus understanding including safety vs. liveness and fault assumptions.
Benchmarking and performance bottleneck analysis.
Live incident response experience.
End-to-end systems thinking.

Nice to have

Blockchain or web3 infrastructure experience, especially with consensus, mempool, or storage layers.
Multi-cloud cost programs that didn't compromise reliability.
Experience integrating AI-assisted security tooling into a development pipeline.

About the company

Sei Labs builds open sourced technology for the high-performance Sei Blockchain. The teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans.