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 careers.klaviyo.com to see how we empower creators to own their own destiny.
Klaviyo’s Integrations Velocity team is building the future of how integrations are created and maintained—not just by our internal engineers, but by developers across the Klaviyo ecosystem. We currently support dozens of integrations supporting over 149,000 customers across 80+ countries. As Klaviyo expands beyond e-commerce into new industries, we want to make integrations faster to build, easier to maintain, and more accessible to developers everywhere.
To support this, we built the Integrations Generation Framework (IGF)—a Python-based, declarative ETL engine that powers all new integrations through a unified codebase. IGF dramatically reduces complexity by centralizing monitoring, error handling, and sync logic, while enabling integrations to be defined declaratively.
As a Software Engineer II on this team, you’ll work across the stack—but with a strong focus on frontend development. You’ll help design and build intuitive React-based tools and UIs that streamline the development experience for anyone working with IGF. From debugging and deployment to monitoring and configuration, your work will directly improve how fast and efficiently new integrations are delivered.
You’ll also collaborate on our Python backend, contributing to the continued evolution of IGF and the infrastructure that powers it. Whether you're writing reusable components, improving observability, or building documentation workflows, your contributions will help accelerate Klaviyo’s ability to enter new markets and scale developer impact.
Massachusetts Applicants:
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Our salary range reflects the cost of labor across various U.S. geographic markets. The range displayed below reflects the minimum and maximum target salaries for the position across all our US locations. The base salary offered for this position is determined by several factors, including the applicant’s job-related skills, relevant experience, education or training, and work location.
In addition to base salary, our total compensation package may include participation in the company’s annual cash bonus plan, variable compensation (OTE) for sales and customer success roles, equity, sign-on payments, and a comprehensive range of health, welfare, and wellbeing benefits based on eligibility. Please visit Klaviyo Rewards to find out more about our Total Rewards package.
Your recruiter can provide more details about the specific salary/OTE range for your preferred location during the hiring process.
Get to Know Klaviyo
We’re Klaviyo (pronounced clay-vee-oh). We empower creators to own their destiny by making first-party data accessible and actionable like never before. We see limitless potential for the technology we’re developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creators—ambitious and collaborative teammates who stay focused on our north star: delighting our customers. If you’re ready to do the best work of your career, where you’ll be welcomed as your whole self from day one and supported with generous benefits, we hope you’ll join us.
Klaviyo is committed to a policy of equal opportunity and non-discrimination. We do not discriminate on the basis of race, ethnicity, citizenship, national origin, color, religion or religious creed, age, sex (including pregnancy), gender identity, sexual orientation, physical or mental disability, veteran or active military status, marital status, criminal record, genetics, retaliation, sexual harassment or any other characteristic protected by applicable law.
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Klaviyo is a global technology company committed to providing a marketing automation platform, used primarily for email marketing and SMS marketing by approximately 143,000 e-commerce merchants.
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