Staff Software Engineer (L4)

New

TwilioSite reliability engineering

This role will be remote, and based in Ireland.Full-TimeStaff

Salary not disclosed

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Job Details

Have 8+ years of related engineering experience, with substantial experience in reliability, infrastructure, or platform engineering.
Demonstrate accountability for production systems, including carrying an on-call pager and owning outcomes when services fail.
Have strong software engineering fundamentals and experience building and shipping production code.
Have experience defining and operating against SLIs and SLOs and using error budgets to inform engineering priorities.
Bring production operations experience in incident command, post-mortem analysis, capacity planning, and observability.
Show a record of preventing incident recurrence and reducing operational toil.
Have experience driving changes across multiple teams and building alignment without formal authority.
Have a track record of improving engineers through code review, design feedback, and mentorship.
Have experience with large-scale distributed systems in a cloud environment.
Familiarity with infrastructure-as-code, container orchestration, and GitOps-style delivery is desired.
Experience with multi-region architecture, failure-domain design, or regional expansion is desired.
Background in chaos engineering, game days, or other proactive resilience validation is desired.

Own the reliability posture of production services, including availability, latency, capacity, efficiency, performance, monitoring, and alerting.
Define, instrument, and operate against SLIs and SLOs, using error budgets to guide engineering priorities.
Identify stability risks and drive mitigations before they affect customers.
Reduce recurring incidents and operational toil by addressing causes and preventing classes of incidents.
Improve detection, response, and recovery, and lead incident response when production is degraded.
Design for failure by strengthening failure domains, validating recovery paths, and making production changes safer to ship and roll back.
Write, configure, and deploy maintainable, reviewed, documented, and tested code that improves service reliability.
Lead debugging and analysis of service architecture, and document technical decisions, migrations, and upgrades.
Drive reliability projects across teams, coordinate delivery milestones, and communicate progress to stakeholders.
Use code review and design feedback to improve code quality and mentor engineers.

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