Klaviyo · 2 hours ago
Senior Software Engineer - Flows and Insight Management
Boston, MA
Full-time
Onsite
Senior Level
$148K/yr - $222K/yr
6+ years expKlaviyo is a company that empowers creators to own their destiny by making first-party data accessible and actionable. They are seeking a Senior Software Engineer to support key initiatives that enhance product offerings and drive company growth by delivering end-to-end solutions using both front-end and back-end technologies.
AdvertisingAnalyticsE-CommerceMarketing AutomationSoftware
Responsibilities
Building an intuitive visual editor, staff-side management tools, and the analytics previews that allow users to create and modify flows with ease
Managing the configuration and APIs that handle creating, editing, cloning, and versioning flows
Delivering rich insights, node-level metrics, and revenue/conversion analytics that help users understand exactly how their automations are performing
Expanding the flow editor ecosystem and building smarter recommendations and actionable insights to help users optimize their strategies
Qualification
Required
6+ years of experience in a software engineering role with a proven track record of building high-quality products
Strong Full Stack proficiency: Experience building end-to-end solutions using Python and Django on the backend, and React and TypeScript on the frontend
API Design experience: Ability to design and maintain robust RESTful APIs (experience with developer-facing APIs is a plus)
System Design & Architecture: Experience designing large-scale systems, managing technical debt, and making high-level architectural decisions
Infrastructure & Database knowledge: Familiarity with relational databases (MySQL/Aurora) and exposure to cloud infrastructure, specifically AWS
Mentorship & Leadership: A passion for coaching junior engineers, conducting code reviews, and fostering a collaborative and high-performing engineering culture
Engineering best practices: A focus on writing clean, maintainable code, participating in code reviews, and leading robust testing practices
Proven experience with being a coach and a mentor for team members and helping them grow
Agile collaboration: Experience working in fast-paced environments and partnering effectively with Product and Design teams
Experience building cloud-native solutions, ideally on AWS
Experience using AI coding tools like Claude Code or Cursor to accelerate development
Preferred
Experience with infrastructure as code, such as Terraform
Familiarity with asynchronous task queues and event-driven architecture (Pulsar, Kafka, RabbitMQ, Celery)
Background in digital marketing, customer data software, or building analytics products
Exposure to machine learning concepts, as we work towards building smarter recommendations for our users
Benefits
Participation in the company’s annual cash bonus plan
Variable compensation (OTE) for sales and customer success roles
Equity
Sign-on payments
A comprehensive range of health, welfare, and wellbeing benefits based on eligibility
Company
Klaviyo
Klaviyo is an automation and email platform designed to help grow businesses.
1001-5000 employees
H1B Sponsorship
Klaviyo has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (47)
2024 (29)
2023 (24)
2022 (27)
2021 (21)
2020 (8)
Funding
Current Stage
Public CompanyTotal Funding
$1.35BKey Investors
ShopifySands Capital VenturesAccel
2025-08-13Post Ipo Secondary· $195.06M
2025-05-14Post Ipo Secondary· $372.95M
2023-09-20IPO
Leadership Team
Andrew Bialecki
CEO
Ed Hallen
Co-Founder, Chief Strategy Officer, Board Member
Recent News
Investing.com
2026-01-03
2025-12-17
Company data provided by crunchbase