Senior / Staff Engineer - Platform
Sei is a high-performance Layer 1 blockchain optimized for trading applications with 400ms block finality and parallel transaction processing.
United States
Projects
S
Sei NetworkL1About Sei
Sei helps developers build fast, efficient applications by providing a trading-focused Layer 1 blockchain with parallelized execution. Users can trade digital assets at near-instant speeds, build high-performance decentralized exchanges, and deploy applications using familiar EVM tools.
Skills
About the Role
You will build and maintain infrastructure for repeatable stress and scale testing, operate a multi-cloud environment, and standardize CI/CD and release workflows. You will improve metrics, tracing, logging, performance and chaos testing, and lead security vulnerability workflows and incident response.
Requirements
- 5+ years building production systems at scale
- Security fundamentals, including threat modeling and vulnerability classes
- Understanding of distributed consensus protocols, including safety, liveness, fault assumptions, and failure modes
- Benchmarking and performance bottleneck analysis
- Live incident response experience
- End-to-end systems thinking
Responsibilities
- Build and maintain Docker and Kubernetes harnesses for repeatable stress and scale testing
- Operate the multi-cloud footprint against reliability and cost targets
- Consolidate CI/CD into reusable standardized workflows
- Own version tagging, hotfix paths, PR review scaffolding, and the release lifecycle
- Implement observability for metrics, traces, and logs using OpenTelemetry, Prometheus, and ELK
- Define SLOs for critical services
- Automate chaos and performance tests in CI to gate releases
- Run bug and vulnerability workflows with auditors and Immunefi
- Triage incidents and turn postmortems into tests, metrics, or runbooks
