101 - 250 employees
Series B
AdTech
Big Data & Analytics
eCommerce & Marketplaces
Enterprise Software / SaaS
Marketing & Sales Tech

Klaviyo Company Overview

Klaviyo is a team of people who are crazy motivated by growth.

It’s what we help our customers do: grow their businesses by making it possible and easy for them to use their data to power better marketing.

It’s how we behave as individuals: we’re all deeply passionate about learning.

It’s how we manage our business: we have thousands of paying customers, we’re profitable, and we’re growing insanely fast.

And it’s what our culture is all about. Working at Klaviyo means you’ll work on things you never imagined you would; you’ll grow in ways you didn’t consider possible; you’ll do the best work of your career with people who are just as motivated and talented as you are.

Your curiosity has led you this far, so if this sounds like your ideal place to work, apply now!

 

Jobs at Klaviyo

 
49 Jobs Listed
Clear Filters
Boston
As a Segment Marketing Manager, youll be responsible for leading our understanding of and go-to-market approach for lower SMB online brands. This role is equal parts marketing strategist and practitioner -- and 100% customer-centric. The successful candidate will be just as comfortable with win-loss analysis and making recommendations for distribution channels as they are chatting up existing and prospective Klaviyo customers and making copy suggestions for our website. Core responsibilities include: Market research. Calculate the total addressable market for lower SMB online...
Marketing
Boston
The Email Marketing Manager is responsible for managing outbound email marketing experiences for Klaviyo, inclusive of automations and campaigns. This role will work to centralize email marketing efforts across all Klaviyo teams z creating, maintaining and operating an email deployment calendar. The Email Marketing manager will play a key role in driving communications with two vital audiences; Klaviyos 20,000+ customers and potential new customers who are still evaluating the correct growth marketing platform for their business. Maintaining one brand voice for communications ranging the...
Marketing
Boston
Klaviyo is growing fast and we have openings for all skill levels across all of our teams. Learn more about our engineering culture at https://klaviyo.tech Engineering at Klaviyo Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love tackling tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and...
Software Engineering/QA
Boston
Engineering at Klaviyo Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love tackling tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort zone, learn new technologies and work hard to...
IT/Systems/Networking
Boston
About Klaviyo At Klaviyo, marketers know that "sending the right message to the right people at the right time" is the key to getting better results. We believe the key reason behind irrelevant marketing isnt the people; its the tools they have to work with. Despite the explosion in Marketing Technology, the products that let marketers communicate with people in a truly relevant, engaging way are either a pain in the ass to use or missing important features. Thats where Klaviyo comes in. Klaviyo helps marketers drive more sales with super-targeted, highly relevant email, Facebook, and...
UX & Design
Boston
Engineering at Klaviyo Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort zone, learn new technologies and work hard to...
IT/Systems/Networking
Boston
Klaviyo is growing fast and we have openings for all skill levels across all of our teams. Learn more about our engineering culture at https://klaviyo.tech Engineering at Klaviyo Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and...
Software Engineering/QA
Boston
Design at Klaviyo: Klaviyo is a startup located in the heart of downtown Boston. We build software that helps tens of thousands of businesses have more relevant and personal relationships with billions of consumers. We are a product driven company and over invest in making beautiful, efficient and fast workflows that help our customers accomplish what was previously unimaginable. We push each other to move out of our comfort zone, learn new technologies and work hard to ensure each day is better than the last. What youll be doing: Talking to and working with customers constantly...
UX & Design
Boston
Channel Customer Success Managers (cCSMs) at Klaviyo play a critical role in developing and supporting our agency partner ecosystem. Our Partner Program mission is to deliver exceptional assistance to our partners and their customers with the highest level of quality in both product knowledge and account management skills, and in the process, consistently meet and exceed their expectations. We are looking for a cCSM who is passionate about providing the best experience to agency partners and their end clients as they scale their businesses with Klaviyo. Responsibilities: Establish yourself...
Customer Success
Boston
About Klaviyo Klaviyo is using technology to reinvent email marketing from the ground up. For too long marketing has been pretty selfish. Companies blast everyone with the same email, not because they think thats what customers want, but because they dont have a choice. Klaviyo fundamentally changes the game. Our software ties together everything companies know about their customers, processes massive quantities of data in real-time, and uses it to drive a platform thats part CRM, part analytics engine, and 100% an email platform that gets results. Technology has come a long way in the last...
Sales & Business Development
Boston
Security Risk and Compliance Manager Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort zone, learn new technologies and work...
Software Engineering/QA
Boston
Klaviyo is a Boston startup located right in the heart of downtown Boston. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for full stack engineers who specialize in certain areas but are passionate about building, owning & scaling features end to end from scratch and breaking through any obstacle or technical challenge in their way. We push each other to move out of our comfort zone, learn new technologies and work hard to ensure each day is better than...
Software Engineering/QA
Boston
We are looking for a Data Engineer who wants to launch a career in business analytics. You'll work on the Business Intelligence team helping answer the hardest questions at Klaviyo. We're looking for someone that has a background in working with billions of records, designing datasets, writing ETL's, and working in a process driven engineering environment. The Business Intelligence team is still in its early days and you'll have a big impact on our direction and how we operate. You'll be central to managing the data environment that everyone uses to understand the health of the business. You...
Data Science / Machine Learning
Boston
As a Manager, Customer Success - Onboarding you will manage one of our Customer Success teams and be responsible for interviewing, hiring, evaluating, training, coaching, and leading a team of new and established Customer Success Professionals (Support, Onboarding Specialists or Customer Success Managers) in a fast-paced and rapidly changing environment. You will work closely with the other Customer Success Team-Leads and the Vice President of Customer Success to help build a team of highly successful Customer Success Professionals who are able to execute exceptional customer service to our...
Customer Success
Boston
Were looking for a Senior Visual Designer who wants to be bold and take chances with design. Were a small but mighty creative team in Marketing focused on clever problem solving and building a culture of design here at Klaviyo. You will play an important role in that by evolving and advocating for the Klaviyo brand, taking part in team brainstorms, designing in-person and online brand experiences for customer events and workshops, marketing content and reports, and social media. Your responsibilities include: Content Design. We make a lot of reports, case studies, guides, training...
Marketing
Boston
Were looking for a Senior Copywriter to join our small but mighty Creative Team in Marketing. Youll play a critical role in giving Klaviyo an authentic voice and consistent tone with non-buzzwordy, talk-like-an-actual-person, customer-focused marketing, advertising, and website copy. Youll partner with design and marketing business owners to create innovative campaigns, site experiences, and communications from concept and strategy to delivery. Your responsibilities include: Messaging framework and copy style guide. Youll infuse the Klaviyo brand throughout our marketing...
Marketing
Boston
Creative Project Manager Were looking for a Project Manager to join our small but mighty Creative Team in Marketing. Youll keep us organized - overseeing the project and production schedules for the innovative creative campaigns the team works on for our customers and internal clients. Youll have an in depth understanding of the deliverables, to-dos, dependencies, resources, and process for the teams projects and ensure we can support our internal clients by delivering high-level creative work on-time. Your responsibilities include: Project timelines and planning. Youll...
Marketing
Boston
As a Manager, Customer Success you will manage one of our Customer Success teams and be responsible for interviewing, hiring, evaluating, training, coaching, and leading a team of new and established Customer Success Professionals (Support, Onboarding Specialists or Customer Success Managers) in a fast-paced and rapidly changing environment. You will work closely with the other Customer Success Team-Leads and the Director of Customer Success to help build a team of highly successful Customer Success Professionals who are able to execute exceptional customer service to our rapidly growing...
Customer Success
Boston
Klaviyo is looking for a director to lead our support team. Our customers are highly driven and motivated entrepreneurs and marketers at high growth brands who want counterparts at Klaviyo comfortable talking about the nuances of our product and marketing strategy. Every Klaviyo that joins our support team is taught and tested on our product, marketing strategies and our voice -- its critical that were experts. We want to wow them from the first time they find out about us to the day they retire from their business -- and everyone at Klaviyo is responsible for delivering that with our...
Customer Success
Boston
About Klaviyo At Klaviyo, marketers know that "sending the right message to the right people at the right time" is the key to getting better results. We believe the key reason behind irrelevant marketing isnt the people; its the tools they have to work with. Despite the explosion in Marketing Technology, the products that let marketers communicate with people in a truly relevant, engaging way are either a pain in the ass to use or missing important features. Thats where Klaviyo comes in. Klaviyo helps marketers drive more sales with super-targeted, highly relevant email, Facebook,...
UX & Design
Boston
We are looking for a Senior Talent Acquisition Professional to join our growing recruiting team. As part of People Operations, you will have the chance to build relationships with some of the most talented people in the Boston tech industry! You will have a direct impact, contributing to the breakneck growth of Klaviyo, affecting the culture and business tremendously with the hyper-intelligent, driven and empathetic people you bring into the company! You'll own your recruiting numbers, hitting targets and drawing insights from analytics to make our hiring process smarter and more efficient....
Corporate Functions
Boston
We are looking for a Senior Technical Talent Acquisition Professional to join our growing recruiting team. As part of People Operations, you will have the chance to build relationships with some of the most talented people in the Boston tech industry! You will have a direct impact in contributing to the breakneck growth of Klaviyo, affecting the culture and business tremendously with the hyper-intelligent, driven and empathetic people you bring into the company! You'll own your recruiting numbers, hitting targets and drawing insights from analytics to make our hiring process smarter and more...
Corporate Functions
Boston
The Field Event Marketing Manager will play a critical role in the development and execution of industry tradeshows and conferences, targeted field events, speaking engagements, and roadshows for the Klaviyo Marketing Team. Youll interact directly with vendors, as well as members of the Klaviyo marketing team who are participating in events. Youll also be traveling to events, ensuring that they run smoothly, and making sure we ship everything we need back. Youll also track documentation of all expenses and interface with our finance team. This is an ideal role for someone with high...
Marketing
Boston
The Content Strategist is responsible for producing high-quality, relevant, and engaging content to help Klaviyo and its customers grow their businesses. S/he will consistently create exceptional, audience-centric content while helping others to create the same high-quality level of content. Youll become an expert in ecommerce marketing, and youll create both short-form and long-form content in a variety of formats (articles, reports, blog posts, videos, etc.) and for multiple distribution channels (blog, website, etc.). Youll collaborate closely with fellow members of the marketing team,...
Marketing
Boston
We are looking for a Talent Acquisition Professional to join our growing recruiting team. As part of the People Operations team, you will have the chance to build relationships with some of the most talented people in the Boston tech industry! You will have direct impact in contributing to the breakneck growth of Klaviyo, affecting the culture and business tremendously with the hyper-intelligent, driven and empathetic people you bring into the company! You'll own your recruiting numbers, hitting targets and drawing insights from analytics to make our hiring process smarter and more efficient...
Corporate Functions
Boston
A Product Manager at Klaviyo is passionate about identifying, specing and shipping solutions to solve customer problems. Our customers are businesses that want to grow. They know there is power in using their data to communicate with their customers in more relevant and targeted ways, but the existing platforms in the market have always been too hard to use or too expensive to take advantage of. Klaviyo customers are passionate, hard-working, ambitious and have incredibly high standards. They expect to deliver the best experiences for their customers and expect us to deliver the best...
Product Management
Boston
Klaviyo is looking for data scientists to analyze large data sets (were collecting billions of individual actions every month), build models and ship products that enable businesses to grow faster and communicate with their customers. Our background as a team is building these models for the Fortune 50 and we want to democratize and open up that technology to everyone. The ideal candidate has a background in data science, statistics and machine learning and has done work ranging from exploratory analysis to training and deploying models. We use a wide variety of data mining and machine...
Data Science / Machine Learning
Boston
Customer Success Managers (CSMs) at Klaviyo are a critical part of our success and the success of our customers. We take the success of our customers incredibly seriously. Our mission is to deliver exceptional assistance to our customers with the highest level of quality in both product knowledge and communication skills, and in the process, consistently meet and exceed customer expectations. We are looking for CSMs who are passionate about providing the best experience to customers who are scaling their businesses with Klaviyo. This is a great opportunity for someone with a passion for...
Customer Success
Boston
Engineering at Klaviyo Klaviyo is a fast-growing and profitable startup located in the heart of downtown Boston. Our mission is to use data science to help ecommerce brands grow faster. We love taking on tough engineering problems such as building real-time analytics systems to process billions of events every day. We believe in ownership and autonomy and look for engineers who are passionate about building, operating & scaling features end to end and breaking through technical challenges to have outsized impact on our customers and on Klaviyo. We pride ourselves in shipping...
IT/Systems/Networking
Boston
Do you want to join one of Bostons hottest startups? More importantly, do you want to redefine Customer Support? The Customer Support team at Klaviyo has ambitions to establish a new standard for Customer Support at a SaaS business. We are looking for the most talented Customer Support professionals to help fulfill our ambitions. We are looking for a manager who obsesses about providing the ultimate customer experience. To succeed here you will need the ability to find creative solutions to unique problems, to thrive in challenging situations, and to be the kind of leader that teams love to...
Customer Success
Boston
Product Management at Klaviyo: The product team at Klaviyo is passionate about identifying, specing and shipping solutions to solve customer problems. Klaviyo is a startup located in the heart of downtown Boston. We build software that helps tens of thousands of businesses have more relevant and personal relationships with billions of consumers. We are a product driven company and over invest in making beautiful, efficient and fast workflows that help our customers accomplish what was previously unimaginable. We push each other to move out of our comfort zone, learn new technologies...
Product Management
Boston
Klaviyo is looking for data scientists to analyze large data sets (were collecting billions of individual actions every month), build models and ship products that enable businesses to grow faster and communicate with their customers. Our background as a team is building these models for the Fortune 50 and we want to democratize and open up that technology to everyone. The ideal candidate has a background in data science, statistics and machine learning and has done work ranging from exploratory analysis to training and deploying models. We use a wide variety of data mining and machine...
Data Science / Machine Learning
Boston
We love programming and the excitement that comes with building something people use. We are the kind of people that love talking to users and can find the balance between solving a problem quickly and thinking about how your code will work in the future. We love to move fast, keep learning and get stuff done. Our data science team is analyzing large data sets (were collecting billions of individual actions every month) and building products that enable our customers to grow faster and communicate more effectively with their customers. Were looking for machine learning engineers to develop...
Data Science / Machine Learning
Boston
Onboarding Experts at Klaviyo are a critical part of our future success. We take the success and happiness of our customers incredibly seriously. Our mission is to deliver exceptional assistance to our customers in their first 30-45 days setting up Klaviyo with the highest level of quality in both product knowledge and communication skills and, in the process, consistently meet and exceed customer expectations. We are looking for an Onboarding Specialist who is passionate about providing the best onboarding experience and support to customers who are scaling their businesses with Klaviyo. As...
Customer Success
Boston
We love programming and the excitement that comes with building something people use. We are the kind of people that love talking to users and can find the balance between solving a problem quickly and thinking about how your code will work in the future. We love to move fast, keep learning and get stuff done. Our data science team is analyzing large data sets (were collecting billions of individual actions every month) and building products that enable our customers to grow faster and communicate more effectively with their customers. Were looking for data science software engineers to...
Data Science / Machine Learning
Boston
Job Brief: We are looking for a talented Sales Manager to join our fast growing Klaviyo Sales organization! In this role as a Sales Manager, you will lead a team of sales professionals and be responsible for increasing our client base through inbound, outbound and partner channels focused on the upper SMB and Mid Market ($10M - $500M Revenue). The Sales Manager recruits, trains, develops and supports new and existing Sales Representatives to ensure that they meet specific new business goals on a weekly, monthly, quarterly and annual basis. The role will report into the Director of...
Sales & Business Development
Boston
Job Brief: We are looking for a talented Sales Leader to join our fast growing Klaviyo Sales organization. The Mid-Market Sales Manager will be responsible for leading a team of 4+ Account Executives that sell into the Mid-Market ($20m-$500m in revenue). This includes hiring, training, forecast management, performance analysis, and day-to-day coaching/talent development. This team will do a mix of inbound, outbound, and agency referred deals. We're looking for someone that has successfully scaled a Mid-Market team in a growing SaaS company and has experience selling to marketers....
Sales & Business Development
Boston
About Klaviyo Klaviyo is one of Bostons hottest startups. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for technical product experts who also like staying close to customers. We push each other to move out of our comfort zone, learn new technologies and work hard to ensure each day is better than the last. Technical Product Expert Were looking for a problem solver who loves talking to customers, understanding their needs and digging into technical...
Customer Success
Boston
Our small but mighty Creative Team is looking for an experienced Front-End Web Developer with a passion for finding unique and creative solutions. Working in collaboration with designers and other development resources, youll take an active role in the creative process by participating in brainstorms, wireframing, & UI discussions. Youll suggest new ways to make our site more engaging through code and figure out how to bring those experiences to life across the Klaviyo website and blog - in ways that also ensure our site is reliable, consistent, and scalable. Responsibilities ...
Marketing
Boston
Klaviyo is looking for an Operations Administrator to support the Information Technology team and Klaviyos employees. Klaviyo is a fast paced, high growth company. ITs mission is to provide amazing customer service and technical knowledge to our internal team while at the same time developing and growing each team members individual technical and soft skills. As an IT Operations Administrator, you will work with a variety of technologies including SaaS based management tools, audio visual solutions, and networking technologies. You will develop a mastery of how to find answers to solutions...
IT/Systems/Networking
Boston
We are looking for another dynamic and adaptable Offie Manager to help support Klaviyos exciting growth and expansion. As a key member of the People Operations team, you will have a rare opportunity to build deep relationships with some of the most brilliant minds in the Boston tech industry! In your role, you will partner directly with the People Operations team to create innovative and modern company-wide traditions and ensure Klaviyo spaces are up to our high standards not only in volume, but also in quality. This role is critical, serving as an important liaison between our Klaviyos,...
Corporate Functions
Boston
About Klaviyo Klaviyo is using technology to reinvent email marketing from the ground up. For too long marketing has been pretty selfish. Companies blast everyone with the same email, not because they think thats what customers want, but because they dont have a choice. Klaviyo fundamentally changes the game. Our software ties together everything companies know about their customers, processes massive quantities of data in real-time, and uses it to drive a platform thats part CRM, part analytics engine, and 100% an email platform that gets results. Technology has come a long way in...
Sales & Business Development
Boston
Product Experts at Klaviyo are a critical part of our future success. We take the success of our customers incredibly seriously. Our mission is to deliver exceptional assistance to our customers with the highest level of quality in both product knowledge and communication skills, and in the process, consistently meet and exceed customer expectations. We are looking for a Product Expert who is passionate about providing the best support to customers who are scaling their businesses with Klaviyo. We are very interested in individuals who have a track record of finding creative solutions to...
Customer Success
Boston
About Klaviyo Klaviyo is one of Bostons hottest startups. We craft software helping thousands of ecommerce companies to have engaging relationships with hundreds of millions of consumers. We love taking on tough engineering problems and look for customer success engineers who also like staying close to customers. We push each other to move out of our comfort zone, learn new technologies and work hard to ensure each day is better than the last. Success Engineering Were looking for a customer-facing engineer who loves talking to customers, understanding their needs and solving...
Customer Success
Boston
Channel Managers at Klaviyo are given a tremendous opportunity to have a huge impact on developing our agency partner ecosystem. Their efforts lead to accelerated growth for both our partners and Klaviyo while also furthering their own careers. At Klaviyo, Channel Managers pride themselves on being marketing and product experts who focus on helping our agency partners grow their clients business thereby setting up our agency partners for long-term success. At Klaviyo, our Channel Managers support the full life cycle of our agency partners -- from qualification to product adoption and...
Sales & Business Development
Boston
About Klaviyo Klaviyo is using technology to reinvent email marketing from the ground up. For too long marketing has been pretty selfish. Companies blast everyone with the same email, not because they think thats what customers want, but because they dont have a choice. Klaviyo fundamentally changes the game. Our software ties together everything companies know about their customers, processes massive quantities of data in real-time, and uses it to drive a platform thats part CRM, part analytics engine, and 100% an email platform that gets results. Technology has come a long way in...
Sales & Business Development
Boston
About Klaviyo Klaviyo is using technology to reinvent email marketing from the ground up. For too long marketing has been pretty selfish. Companies blast everyone with the same email, not because they think thats what customers want, but because they dont have a choice. Klaviyo fundamentally changes the game. Our software ties together everything companies know about their customers, processes massive quantities of data in real-time, and uses it to drive a platform thats part CRM, part analytics engine, and 100% an email platform that gets results. Technology has come a long way in the last...
Sales & Business Development
Boston
Engineering at Klaviyo Klaviyo is a fast-growing and profitable startup located in the heart of downtown Boston. Our mission is to use data science to help ecommerce brands grow faster. We love taking on tough engineering problems such as building real-time analytics systems to process billions of events every day. We believe in ownership and autonomy and look for engineers who are passionate about building, operating & scaling features end to end and breaking through technical challenges to have outsized impact on our customers and on Klaviyo. We pride ourselves in shipping...
IT/Systems/Networking
Boston
Job Brief: We are looking for a talented Sales Development leader to join our fast growing Klaviyo Sales organization. The Outbound BDR Manager will be responsible for leading a team of Business Development Representatives to effectively prospect into target accounts and develop pipeline for the direct sales team. This includes hiring, goal setting, performance analysis, and day to day coaching and talent development. This role will be instrumental in developing Klaviyos future sales leaders as well as ensuring sustained business growth from the outbound channel. Responsibilities:...
Sales & Business Development
225 Franklin Street, 10th Floor
Boston, MA 02111

Read About Us

Talent on the Move
July 19, 2019
Talent on the Move
May 10, 2019
Engineering Spotlight
August 29, 2018
Engineering Spotlight
February 7, 2018
Talent on the Move
December 1, 2017
Office Tours
April 4, 2017

Blog

October 4, 2019
A few weeks ago I was looking for a tank of camping propane. I dug through all sorts of fun stuff in my garage and came across this……my linear algebra textbook from college. Matrices seem more exciting now than they did freshman year. I worked through the first few problems and put the book next to my bed, but the only thing that happened is I felt guilty about not picking it up again.The guilt got to me this past weekend. I realized I just wasn’t going to get far working through dense p...
October 1, 2019
Everyone moves on. It’s how you and I both got to where we work right this minute. Even though it’s exciting to jump into a new gig, we leave behind friends, routines, lunch spots, things that are important to us, things that will be missed. Everyone moves on, but we’ll come back to that. Right now though, I want to talk to you about the Finger Game and the role it has played in building and maintaining an engineering team.Drinking culture at startups can be controversial, but done respons...
September 25, 2019
Last month, we wrote an article arguing that an A/B test was the best way to find the optimal send time for a group of customers. We said it would be impractical to A/B test at the individual level, and in this post we’ll explain why. We’ll start with some basic intuition and then take you through the full mathematical explanation of why it doesn’t work.Let’s imagine a brand is trying to find the best time to send you messages. They want to A/B test send times to pick a winner among the...
September 23, 2019
At Klaviyo we send billions of emails per month, so we often run into problems of scale in the strangest of places. In order to send out…Continue reading on Klaviyo Engineering »...
September 18, 2019
Klaviyo is about making your business grow. We like to measure everything by revenue. But for Smart Send Time, we measure open rate. Why?Conversions are rare events. A conversion rate of 0.1% for a campaign is fairly typical. Comparing the rates of rare events is extremely difficult since there is huge variation, so unless sample sizes are gigantic, it is impossible to distinguish between conversion rates.Let’s look at an example from an experiment we performed during the beta for Smart Send ...