Senior Software Engineer - Developer InfrastructureNew$222K

The opportunity

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements.

What you'll do

  • Dependency Management: Analyze, optimize, and secure backend and third-party dependencies across the codebase. Build frameworks for evaluating risk and ensuring our dependency graph stays healthy, performant, and maintainable.

  • Platform Upgrades and Rollouts: Lead the planning and execution of major software releases and updates — from design through production rollout — including hands-on individual contribution throughout.

  • Developer Productivity: Drive improvements across key cycle time metrics including PR CI speed, code review turnaround, and commit velocity. Relentlessly reduce toil and increase engineering efficiency across the organization.

  • Set Engineering Standards: Contribute to the standards for code quality, dependency hygiene, and platform reliability that all teams follow.

  • AI-Driven Strategy: Spearhead efforts to leverage AI within the platform lifecycle and use AI tooling to accelerate your own development work.

  • Cross-Functional Collaboration: Partner with engineers, security teams, and stakeholders to gather requirements, resolve conflicts, and roll out platform changes that teams can adopt with confidence.

What they're looking for

  • Operational Excellence: Proactively monitor the health and reliability of the platform, diagnosing and resolving complex issues before they become critical incidents.
  • High-Leverage Work: You are not just building features; you are building the systems that determine how fast every engineer at Klaviyo can ship.
  • Real Architectural Impact: You will influence the structure of a large, complex backend codebase and make decisions that scale with the company.
  • Innovation at the Edge: You will have the autonomy to experiment with AI and emerging tooling to solve hard problems in dependency management, build performance, and developer experience.
Senior Software Engineer - Developer Infrastructure at Klaviyo | Role Match