Senior Product Data Scientist (San Francisco)

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 youre a close but not exact match with the description, we hope youll 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.

At Klaviyo, we build products that empower businesses to create stronger, more personalized relationships with their customers. We help businesses leverage data to deepen their customer relationships, foster growth and drive business outcomes. We are looking for a visionary Head of Product Analytics and Customer Insight to join our dynamic team, enhance our analytic capabilities and drive our customer strategy.

Were looking for someone who thrives at the intersection of data and product someone who brings solid analytical skills, experience with experimentation, and curiosity to uncover insights that shape product strategy. You should be comfortable working with SQL and R or Python, designing and analyzing A / B tests, and translating data into actionable recommendations for product teams.

Please note that this is a hybrid role and requires 3 days / week in our San Francisco office. Fully remote candidates will not be considered at this time.

What Youll Do :

Partner with product and engineering teams to identify and evaluate high-impact product opportunities through rigorous experimentation, causal inference, and predictive modeling

Lead the design, implementation, and analysis of experiments including A / B tests and multivariate tests ensuring sufficient power, correct statistical methods, and actionable recommendations

Conduct statistical research projects to uncover patterns in customer behavior, evaluate product performance, and identify causal relationships using methods such as Mixed Effects Models, Difference-in-Differences, clustering algorithms, and time series analysis to guide product strategy and decision-making.

Define the right product and customer metrics to measure success, and build scalable, self-serve analytics tools and dashboards that enable product managers and cross-functional stakeholders to make data-informed decisions independently.

Collaborate with data engineering to define and implement reliable data pipelines and DBT models that ensure clean, well-structured, and trustworthy data for downstream analysis and self-serve use.

Communicate insights clearly and persuasively to cross-functional stakeholders, from product teams to executive leadership

Who You Are

You have 6+ years of experience (ideally 7+) in data science, product analytics, or applied statistics, preferably in a B2B SaaS or product-focused environment

You hold a degree in a quantitative field such as Statistics, Mathematics, Computer Science, Economics, or Engineering

You are highly proficient in SQL and either Python or R, and comfortable using DBT for analytics engineering

You have deep expertise in experimentation and statistical analyses.

You bring strong business intuition and the ability to translate ambiguous questions into clear analytical plans

You work with speed and focus, balancing analytical rigor with the urgency and iteration cadence of product development

You are a compelling communicator who can frame complex statistical findings into product-relevant insights

You thrive in cross-functional settings and are energized by using data to drive product decisions that improve customer outcomes

Why Youll Love This Role

Influence the direction of a high-impact product area and help define how success is measured

Work alongside a world-class data team where experimentation and modeling are first-class tools

Join a company where data science is embedded in the product development lifecycle, not siloed as reporting support

Be part of a culture that values intellectual rigor, collaborative problem-solving, and continuous learning

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 youre a close but not exact match with the description, we hope youll 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.

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

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 applicants 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 companys 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 :

$128,000 $192,000 USD

Get to Know Klaviyo

Were 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 were developing to nurture personalized experiences in ecommerce and beyond. To reach our goals, we need our own crew of remarkable creatorsambitious and collaborative teammates who stay focused on our north star : delighting our customers. If youre ready to do the best work of your career, where youll be welcomed as your whole self from day one and supported with generous benefits, we hope youll 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.

IMPORTANT NOTICE : Our company takes the security and privacy of job applicants very seriously. We will never ask for payment, bank details, or personal financial information as part of the application process. All our legitimate job postings can be found on our official career site. Please be cautious of job offers that come from non-company email addresses (@klaviyo.com), instant messaging platforms, or unsolicited calls.

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