Klaviyo
Senior Lead Software Engineer - Data Platform
$216K–$324K
Boston, MA +1 · Senior · Full-time · Posted Jul 22, 2026
- Location
- Boston, MA
Boston, Massachusetts, United States - Experience
- 12+ years of software engineering experience.
About the job
Leads cross-team technical direction and major initiatives for Klaviyo’s Data Platform, with a primary focus on Data Lake architecture, reliability, and operational scale.
What you'll do
- Own and lead high-impact, cross-team platform objectives and initiatives from discovery through rollout and ongoing operation.
- Set architectural direction, align roadmaps, and establish reusable patterns, standards, and abstractions across Data Platform teams.
- Support operational health and incident response, while mentoring senior and lead engineers through design reviews, coaching, and hiring.
What they ask for
- 12+ years of software engineering experience.
- Deep knowledge of distributed systems, data platform architecture, and large-scale analytical processing.
- Experience leading large, ambiguous, multi-quarter programs and making architectural decisions across teams.
- Hands-on experience with Iceberg-based storage, Spark or EMR-based compute, Airflow-based orchestration, Python-based tooling, modeled data systems, and AWS infrastructure.
Nice to have
- Experience with custom-built databases, CDM-style modeled data layers, or managed table frameworks such as Materialized Views.
- Experience in data governance or regulated-data programs, or building platform automation for complex data operations.
Pay
$216,000 — $324,000 USD (base salary)
Tools
Iceberg S3 tables, Spark / EMR, Airflow, Materialized Views, Python, AWS, CDM tables, KDB
AI focus
Supports AI/ML use cases through the Data Platform; agentic support for engineers operating complex data systems is a nice-to-have.
Model-written summary · the original posting is authoritative