Klaviyo

SeniorSoftwareEngineer-DeveloperInfrastructure

$148–222k Boston, Massachusetts, United States Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Software Engineer - Developer Infrastructure at Klaviyo. Skills: developer platform evolution, dependency management, platform upgrades, developer productivity, engineering standards, AI-driven strategy. drive the evolution of our developer platform across the organization. analyze, optimize, and secure backend and third-party dependencies across the codebase”

What You'll Achieve.

empowering engineers to ship code efficiently and safely; define and execute the technical roadmap for Klaviyo's backend platform; reduce toil and accelerate velocity; building and maintaining the foundational systems that keep our codebase healthy and scalable; ensuring every engineer at Klaviyo can move fast with confidence

Industry & Context.

Problems you'll solve

analytical problem solver; hunt down root causes; implement systemic fixes; build in safeguards to prevent recurrence; diagnosing and resolving complex issues

Eligibility Requirements

up to 10% travel

What They're Looking For.

Must Have

5+ years of software engineering experience, computer science fundamentals, focus on clean, maintainable, well-architected code, comfortable reasoning about distributed systems, dependency graphs, and the downstream impact of platform-level decisions across many teams, can move across the stack when needed

Nice to Have

AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop)

What You'll Do.

drive the evolution of our developer platform across the organization

and secure backend and third-party dependencies across the codebase

build frameworks for evaluating risk and ensuring our dependency graph stays healthy

lead the planning and execution of major software releases and updates — from design through production rollout — including hands-on individual contribution throughout

drive improvements across key cycle time metrics including PR CI speed

code review turnaround

relentlessly reduce toil and increase engineering efficiency across the organization

contribute to the standards for code quality

and platform reliability that all teams follow

spearhead efforts to leverage AI within the platform lifecycle and use AI tooling to accelerate your own development work

proactively monitor the health and reliability of the platform

diagnosing and resolving complex issues before they become critical incidents

How You'll Work.

Team & Collaboration

partner with engineers, security teams, and stakeholders to gather requirements, resolve conflicts, and roll out platform changes that teams can adopt with confidence

Process & Methodology

planning and execution of major software releases and updates — from design through production rollout

Full Job Description

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. If you’re a close but not exact match with the description, we hope you’ll still consider applying. Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny. Why You Should Join the Developer Infrastructure Team Our core focus is empowering engineers to ship code efficiently and safely. We own the build systems, dependency lifecycle, and platform infrastructure that underpin every engineer's daily workflow. As a Senior Software Engineer on this team, you will help define and execute the technical roadmap for Klaviyo's backend platform — from dependency management and major framework upgrades to developer productivity tools that reduce toil and accelerate velocity. By building and maintaining the foundational systems that keep our codebase healthy and scalable, you will play a pivotal role in ensuring every engineer at Klaviyo can move fast with confidence. What You'll Achieve: Key Responsibilities As a Senior Software Engineer for this team, you will drive the evolution of our developer platform across the organization: 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

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