Sr. Director, HR Business Partner — R&D (Boston)

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 klaviyo.com/careers to see how we empower creators to own their own destiny.Build the people strategy behind Klaviyo's AI-first R&D engine.Klaviyo is becoming an AI-first company - not as positioning, but as a fundamental shift in how we operate, hire, and build. Our R&D organization is at the center of that transformation. Engineering, Product, Design, Data Science, Security, and IT are all being reshaped by it - and, pushing the company forward on our journey.We need an HR leader who can sit at the table with our CPO, CTO, and CIO - not as just their HR partner, but as a genuine strategic partner who is helping drive their business into our next phase of growth. Someone who can navigate the tension between moving fast and building something that lasts. Someone who's comfortable challenging a senior leader on org design at 9am and coaching a first-time people leader at 2pm.This is not a typical HR partnership role. It's a mandate to build.What You'll DoPartner at the top.You'll be the primary HRBP for our R&D organization - directly supporting VP+ leaders including the CPO, CTO, and CIO. That means candid advice, not polished answers. You'll help them think through the hardest people questions: how to structure growing teams, where talent risk is hiding, and when a leadership problem is actually an org design problem (or vice versa).Shape how R&D runs as AI changes everything.AI isn't coming to Klaviyo's R&D org - it's already here. You'll partner with leaders and teams to navigate what that actually means: redesigning roles, rethinking team structures, and building the skills that let people work alongside AI rather than behind it. Drive talent strategy, not just talent process.You'll translate business priorities into people strategies - org design, succession planning, hiring strategy, and leadership development - that hold up as the company scales. You know the difference between a process that creates clarity and one that just creates paperwork.Lead with data.You'll use advanced people analytics and data signaling tools to spot trends before they become problems, make the case for investment, and measure whether the things we're doing are actually working.Lead and develop an HRBP team.You'll build and coach a team of HRBPs supporting R&D - setting a high bar, modeling what great HRBP work looks like, and creating the conditions for them to do their best work. Connect the dots across the People function.You'll work closely with the Head of HRBP and Talent Development to shape how the broader HRBP team operates - building efficient / automated processes, leading cross-functional projects (performance calibration, org design, career architecture), and maintaining strong partnerships with close partners such as TA, People Ops, Total Rewards, and Employment Legal.What Success Looks LikeR&D leaders treat you as a trusted advisor - not because you're available, but because your perspective is worth seeking out.You've built a team of HRBPs who are raising the bar on what strategic partnership looks like.Org design, succession, and talent decisions are grounded in data and built around a clear point of view.Your fingerprints are on how R&D has evolved through AI transformation - the structures, the capabilities, the culture.People Leaders and experts across R&D report a measurably better partnership experience as we evolve our people strategy.What You BringNon-Negotiables:15-20+ years of HRBP or related HR experience, with meaningful time supporting R&D, Engineering, or Product organizations in high-growth tech.5+ years leading and developing HR teams - you know what great coaching looks like, and you practice it.A proven track record partnering with senior leaders, including the C-suite, on high-stakes decisions with wide and long-ranging impact.Experience guiding organizations through real change - not just process improvement, but structural and strategic transformation.Deep expertise on org design, performance management, and leadership development - and the data literacy to back them up.The judgment to know when to push back and when to get out of the way.Strong signals:You've been inside a company during a major strategic pivot - and you helped shape how the people side of that went.You've worked in an environment where AI is changing the nature of the work itself, not just the tools used to do it.You operate with urgency. You don't need consensus to move.You're comfortable in ambiguity and know how to create clarity for the people around you without pretending certainty you don't have.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. 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:$224,000—$336,000 USDThis role may require up to 10% travel for purposes such as new hire onboarding, client or partner work if applicable, team meetings, and industry events. Travel is coordinated in advance.Get to Know KlaviyoWe’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.AI fluency at Klaviyo includes responsible use of AI (including privacy, security, bias awareness, and human-in-the-loop). We provide accommodations as needed. By participating in Klaviyo’s interview process, you acknowledge that you have read, understood, and will adhere to our Guidelines for using AI in the Klaviyo interview Process. For more information about how we process your personal data, see our Job Applicant Privacy Notice.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.By clicking Submit Application you consent to Klaviyo processing your Personal Data in accordance with our Job Applicant Privacy Notice. If you do not wish for Klaviyo to process your Personal Data, please do not submit an application.You can find our Job Applicant Privacy Notice here and here (FR).