Klaviyo · 9 hours ago
Software Engineer II Devx
Boston, MA
Full-time
Hybrid
Mid Level
$120K/yr - $180K/yr
3+ years expKlaviyo is a rapidly growing company that empowers creators to own their own destiny by making first-party data accessible and actionable. They are seeking a Software Engineer II to work on their app marketplace and developer-facing tools, focusing on supporting external developers and partners through their Public APIs and features.
AdvertisingAnalyticsE-CommerceMarketing AutomationSoftware
Responsibilities
You will have an opportunity to make a major impact on the direction and priorities of the team
As an engineer on this team, you will work on Klaviyo’s app marketplace, application publishing workflows, and the developer-facing tools and systems that support our app ecosystem
Additional responsibilities include providing quality PR reviews for our code-owned areas of the application, collaborating with product owners and providing technical expertise on upcoming Product Specifications, and participating in the definition of well-defined, estimated, and planned scopes of work
Qualification
Required
3-5+ years of experience in a software engineering discipline
Experience with full stack application development
Experience working with both monolithic and microservices architectures
Experience with CI/CD pipelines
Experience debugging performance issues and improving application performance
Preferred
Experience working with Service Oriented Architecture (preferably in Python)
Experience working with RESTful applications/APIs/gRPC
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