Staff Software Engineer (L4) – SRE, Platform Engineering

Responsibilities

• ▹Own the reliability posture of production services in your area: availability, latency, capacity, efficiency, performance, and the monitoring and alerting that makes them visible.
• ▹Define, instrument and operate against SLIs and SLOs, and use error budgets to drive engineering priorities.
• ▹Identify trends and problem areas that threaten stability, and provide a path forward to mitigate risk before it reaches customers.
• ▹Drive down repair items and prevent classes of incidents rather than resolving them one at a time.
• ▹Improve detection, response and recovery, reducing time to acknowledge, engage, mitigate and restore, with fewer people pulled in.
• ▹Design for failure: strengthen failure domains, validate recovery paths, and make production changes safer to ship and safer to roll back.
• ▹Participate in on-call for the services you support, and lead the response when production is degraded.
• ▹Write post-mortems that identify true root causes, and drive the follow-up work to completion.
• ▹Oversee efforts to identify, diagnose, report and document production problems across all reliability dimensions.
• ▹Write, configure and deploy code that measurably improves service reliability: maintainable, reviewed, documented and well tested.
• ▹Orchestrate complex changes across systems and services, documenting design changes, technical decisions, migration plans and upgrades.
• ▹Lead debugging, troubleshooting and analysis of service architecture and design.
• ▹Use code review to drive up the quality of your coworkers' code.
• ▹Reduce the operational overhead required to run infrastructure and services.
• ▹Drive projects from conception to completion for efforts spanning the concerns of your team; break projects into milestones and tasks, track progress and communicate updates to stakeholders.
• ▹Identify and communicate changes that may impact stability.

Requirements

• ▹8+ years of related engineering experience, with a substantial portion focused on reliability, infrastructure or platform engineering.
• ▹Demonstrated accountability for production systems: you have carried a pager for services that mattered and owned the outcome when they failed.
• ▹Strong software engineering fundamentals: you build and ship production code, not only configure tooling.
• ▹Experience defining and operating against SLIs and SLOs, and using error budgets to inform engineering priorities.
• ▹Depth in production operations: incident command, post-mortem analysis, capacity planning and observability.
• ▹A record of preventing recurrence: reducing incident classes and operational toil, not just closing tickets.
• ▹Experience driving changes that span multiple teams, and the communication skills to build alignment without formal authority.
• ▹A track record of improving the engineers around you through code review, design feedback and mentorship.
• ▹Experience with large-scale distributed systems in a cloud environment.

Nice to have

• ▹Familiarity with infrastructure-as-code, container orchestration and GitOps-style delivery.
• ▹Experience with multi-region architecture, failure-domain design or regional expansion work.
• ▹Background in chaos engineering, game days or other proactive resilience validation.

Soft skills

What we offer

• ▹Competitive pay
• ▹Generous time off
• ▹Ample parental and wellness leave
• ▹Healthcare
• ▹Retirement savings program
• ▹Support for volunteering and donation efforts
• ▹Remote-first work (offerings vary by location)

About the company

Twilio delivers communications solutions to hundreds of thousands of businesses and empowers millions of developers worldwide. It is a remote-first company; in-person attendance may occasionally be needed for team gatherings, off-sites or customer meetings.