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

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

 
37 Jobs Listed
Clear Filters
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
Information Security & Security 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 and technical leaders who are passionate about building, operating & scaling features end to end and breaking through technical challenges to have outsized impact on our...
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
The Mission of the Manager of Customer Operations will be to drive the effectiveness and efficiency of our Customer Success team. You will report into the Manager of Customer Success and partner closely with Success Leadership & Sales Ops to fully understand & optimize our efficiency to provide real-time insights that allow us to quickly adjust our customer success strategy to better support our customers and improve retention. You Will: Analyze customer behavior, churn, upgrades and downgrades and customer support issues to drive strategies around retention and customer engagement...
Customer Success
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
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
The payroll specialist will play an integral role on the Finance team at Klaviyo. This employee will process and analyze multi-state U.S. payroll for 200+ exempt and non-exempt employees on a semi-monthly basis. This individual will report to the Manager of Accounting, and will also support the People Operations team on a regular basis. This person must have in depth knowledge of payroll wage and hour laws, federal, state, and local tax laws, pre and post-tax benefits, and 401K plans. This position requires attention to detail, organization, and effective collaboration through all levels of...
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 the last...
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
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
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
Mission The Klaviyo Academy team provides critical how-to guides and resources for the Klaviyo customer base. Growing ecommerce and online service companies turn to us to help them better communicate with their customers. As a technical writer at Klaviyo, you cultivate expertise in our customers and their needs, learn how ecommerce businesses work inside and out, and translate that into helpful guides, videos, and other material that helps our customers grow. Core responsibilities Identify documentation and guide needs Youll work with other tech writers, as well as members of...
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, and...
UX & Design
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 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
Were looking for a driven, self-motivated individual to own our strategic relationships with eCommerce platform partners and other tech solution providers in our ecosystems. In this role, youll wear many hats: from relationship management to product marketing to demand generation. On all fronts, youll be playing a key role in helping our business grow. Youll be charged with identifying the opportunities that make sense for Klaviyo; then planning, executing, measuring and optimizing these marketing programs. Youll also be counted on to educate and support our platform partners: making sure...
Marketing
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
Klaviyo sends over a billion emails a month across thousands of customers. Our Deliverability team is responsible for ensuring that these emails are successfully delivered into our customers inboxes. This work involves remediating blacklists, identifying spam traps, working with ISPs to optimize sending rates and working with clients to make sure they send email using best practices. The Deliverability team is currently looking for an experienced professional in email deliverability and compliance. If you have the following skills, please consider joining our team: Thorough understanding of...
Customer Success
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
225 Franklin Street, 10th Floor
Boston, MA 02111

Read About Us

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
Talent on the Move
February 17, 2017

Blog

May 7, 2019
The develop, build, test, deploy, release cycleThis blog post is about how we began to adopt microservices at Klaviyo. Now, when I say the word “microservice,” it’s not uncommon for people to disregard it as a buzzword. Microservices are often associated with companies like Netflix and Amazon. But Klaviyo isn’t Netflix or Amazon. We don’t have huge teams of developers hyper-focused on optimizing how we build and scale microservices. What we do have are several small teams. Each of the...
March 25, 2019
This is the third part of our “Counting” blog series. In the previous posts, we described what problem we are trying to solve and the technical challenges we face. In this post, we will go deep into the lessons learned from using Apache Flink, especially around performance optimization. This blog post requires knowledge of basic stream processing concepts and Flink usages.Klaviyo’s workloadKlaviyo has a unique stream processing workload that has high fan-out with a high cardinality datase...
March 1, 2019
Every September at Klaviyo we start to prove our platform is ready for a surge of traffic during the Black Friday and Cyber Monday shopping holidays, consisting mainly of retailers sending out promotions and consumers making purchases. This surge of traffic is both an egress of over a billion email messages and an ingress of billions of ecommerce actions that Klaviyo tracks (like customers making purchases, viewing products, etc.). The combination sums up to a roughly 5–7x sustained load incre...
February 22, 2019
Klaviyo Engineering has had a long and incredibly successful history with Graphite instrumentation — we love the technology so much we’ve even built video walls showcasing our Grafana dashboards. We rely on it for deep visibility across our workloads for common use cases such as system throughput, latency, and overall performance. Although we started with a fairly vanilla Graphite and Statsd server, Klaviyo’s growth over the years forced an evolution of our backend infrastructure provi...
February 1, 2019
One clever little piece of software we’ve built here at Klaviyo is an open-source slack bot we call “The Hat Man.” This is a story about The Hat Man’s inception.When I joined Klaviyo in February of 2017, there were eight engineers total — a far cry from the 30+ engineers on our engineering team now. We had just started using AWS auto-scaling groups for many of our workloads, and started running more servers as we grew. In order to keep code in sync across all of our boxes, we deplo...