Klaviyo Blog

Klaviyo | Boston ONSITE | https://www.klaviyo.com | https://klaviyo.tech | http://bit.ly/klaviyocareers Klaviyo is a data science company that helps brands grow faster. We're profitable, engineering-driven and growing incredibly fast. We have over 12,000 paying customers and are doubling year over year and ingesting an order of magnitude more data every year. We're hiring across the board (Python/Java engineers, systems engineers, site reliability engineers, hands-on team leads, security engineers, data scientists, product managers, designers, and more). We run a DevOps culture and love full stack engineers who code code in both Python and Javascript (we use React and TypeScript). Our tech stack is predominantly Python (Django), Java and JS/React running on AWS at massive scale. We run thousands of EC2 boxes, 100s of Aurora MySQL and PostgreSQL clusters and petabyte scale Cassandra clusters. We're heavy users of Kafka, RabbitMQ and Redis. We've just recently launched our first workloads on Kubernetes. We send billions of emails every month and fire customers that send spam--our goal is helping customers have more effective long-term relationships with their customers. We also do push notifications, website personalization and soon SMS. We recently raised one of the largest fund-raising rounds in Boston history ($150m) but don't intend to change our core values which includes growing our business organically. Feel free to reach out to me at…

We recently switched to Klaviyo https://www.klaviyo.com The UX is simple and integrations seem much easier to use than MailChimp, it's also a bit cheaper.

One of the courses she offers says right on the home page “how I earn 10k to 20k a month”. The other course says “how I made a blog that earns 50k a month”. I guess this is just the last episode in the series? Making $1 for every 5 visitors is impressive. Or fake. Judging by the lack of detail, I assume this whole site is an affiliate-marketing scammy clone of IndieHackers. Edit: ha, right on the money. The site is “sponsored” by a “growth hacking” platform https://www.klaviyo.com/

Good look at the history of the marketing term big data. I think this fits squarely in the realm of big data hype, or at least a review of why it is big data hype (something I've blogged about here http://www.klaviyo.com/blog/2012/07/16/the-curse-analytics-big-data-hy… The SAS discussion makes it especially clear that it's viewed as a trend. But - posts like these frequently jump to the top of hacker news, and there's clearly a feeling that access to new analyses and more data is going to change the world. I think this is probably right. I'd love to hear more discussion of how big data has already started this process. Examples I can think of (and I'd love to hear more): - weather analysis for farmers (weatherbill / the climate corporation) - marketing (the target pregnancy example - http://www.nytimes.com/2012/02/19/magazine/shopping-habits.html?pagewa… More examples?

Been thinking about / working on the email design problem for a long time. Email is a great medium with a startling lack of good design tools. Here are the features I look for in an WYSIWYG email builder: * Drag and drop with common content types. Text, HTML, image, button, divider, social icons. * Controls for fonts, colors, borders, padding, etc. You don't want to adjust CSS after the CSS is inlined. * Control over email structure. Most email layouts are a single column or pre-built with a multi-column area. A good editor allows you to add new sections that are single or multi-column. * Responsive by default. For email this means that multi-column layouts can "collapse" to one column on mobile. So a 3x3 grid becomes 1x9 and the content of each cell isn't tiny on a phone. * Cross email client compatible. It handle Outlook, GMail and Apple Mail out of the box. This means lots of <table>s, that's just life. * One-click export to HTML with inlined CSS. * Image hosting. You can host the images yourself, but most of the time that's an extra step you don't care about. * Allows for saving and re-editing. It's not fun creating a variation of a template from scratch. For the last three years, we've been working on our email builder: https://www.klaviyo.com/email-templates. I think it has all of the above.

Not OP but they seem to be in the DNVB/DTC business. It is an interesting eCommerce sector. 1: https://www.klaviyo.com/blog/dnvb-digitally-native-vertical-brand

This is the link from the post to their vendor with more details: https://www.klaviyo.com/blog/august-2022-security-incident It appears this happened on August 3, over 5 months ago!

I find some take-home assignments to be completely reasonable and preferable to whiteboard interviews. For example, Klaviyo in Boston (no relation, I just interviewed with them at one point) has a take-home assignment listed here [0]. It is simple enough that I can finish it in the same time as phone technical interviews and applies to the company's product and job requirements. Though I am certain there are companies that have unreasonable take-home assignments. [0] https://www.klaviyo.com/weather-app

> Mandrill has a `render` endpoint which makes this easy. None of the others have this yet. Klaviyo provides similar functionality: https://www.klaviyo.com/docs/api/email-templates Disclaimer: I work at Klaviyo.

I think one of the more interesting bits is how you integrate via a javascript snippet https://www.klaviyo.com/docs/javascript-api It seems like you could tag events quite easily on your site [customer logged in, customer performed action, etc] quite like mixpanel - and then use the rest of the system to perform actions in responses. It would be super simple to set up a "Haven't seen you in a while" email without having to do any extra work. Lots of companies build nice products but don't put any effort on customer success, past conversion to sign up. I like it. A non-technical could add a lot of value to an existing site.