Senior Product Manager, API's

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.

Product Managers at Klaviyo are passionate about building products that delight customers and solve meaningful problems. Our ability to deeply understand customer needs and deliver products with strong product-market fit has been a major driver of Klaviyo’s success and rapid growth. Please note that this role is located in Boston and requires 3 days/week onsite in our office. Fully remote candidates will not be considered at this time.

About the Role:

We’re now looking for a Senior Product Manager to lead the evolution of Klaviyo’s API platform—an essential pillar that empowers developers, partners, and technical users to build and integrate seamlessly with Klaviyo. As a Senior PM on the API team, you’ll play a central role in shaping the future of Klaviyo’s developer experience. You’ll work closely with engineers, designers, and cross-functional teams to build powerful, reliable, and developer-friendly APIs. Your work will directly impact how Klaviyo customers and partners access, manipulate, and activate customer data.

How You’ll Make a Difference:

• Drive business outcomes by defining and delivering high-impact API capabilities that expand Klaviyo’s reach and deepen integration opportunities.


• Own the roadmap for APIs across core domains—prioritizing based on impact, technical feasibility, and customer needs.


• Serve technical users by developing a strong point of view on the needs of developers, partners, and power users working with customer data at scale.


• Partner across the organization, working with other product teams to ensure our APIs are extensible, secure, and built with long-term scalability in mind.


• Communicate clearly and frequently, both in writing and in meetings, to align stakeholders and drive clarity on direction and priorities.


• Act as the voice of the developer, spending time with customers and partners to understand how they use Klaviyo’s APIs—and where we can do better.

What You'll Do:

• Manage a product roadmap for Klaviyo’s APIs—balancing new feature development, platform investments, and technical debt.


• Write clear, comprehensive specs that break down complex problems into detailed use cases, anticipate edge cases, and ensure a seamless developer experience.


• Work closely with engineering and design to iterate on API design and documentation, ensuring high usability and consistency.


• Ship features that deliver tangible value to customers and partners while maintaining high standards of quality and reliability.


• Continuously learn about emerging API standards, developer expectations, and partner needs to keep Klaviyo’s APIs modern and competitive.

Who You Are:

• You have 6+ years of experience in product management, ideally working on APIs, developer platforms, or data-focused products.


• You have strong technical intuition and are comfortable collaborating with engineers and understanding architectural trade-offs.


• You’re a rigorous thinker who enjoys breaking down complex problems and designing elegant, scalable solutions.


• You are customer-obsessed, especially about serving developers and technical users.


• You are an excellent communicator, particularly in writing, and can drive alignment across technical and non-technical stakeholders.


• You thrive in a fast-paced, high-growth environment and are motivated by solving hard problems with smart, collaborative teams.

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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.

Base Pay Range For US Locations:

$140,000—$210,000 USD

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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