Klaviyo

Software Developer Interview Experience - New York, New York

February 16, 2022

Negative ExperienceNo Offer

Process

The process began with three phone calls, one of which was technical.

This was followed by an online technical assessment.

Subsequently, there were six consecutive interviews, each involving two people.

Overall, the experience was a significant waste of time.

During the six interviews, I met numerous individuals who seemed unaware of my identity or the purpose of my presence.

Having this many interview rounds is a major red flag, and I should have trusted my instincts.

Questions

Describe verbally a random system design you'd make from an obscure drawing.

How would you design this API from another obscure wireframe?

Do a timer in React. Countdown timer using Luxon instead of the JS Date that we all know. There are 4 parts, and you have to complete them in 40 minutes.

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Interview Statistics

The following metrics were computed from 1 interview experience for the Klaviyo Software Developer role in New York, New York.

Success Rate

0%

Pass Rate

Klaviyo's interview process for their Software Developer roles in New York, New York is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive0%

Neutral0%

Negative100%

Candidates reported having very negative feelings for Klaviyo's Software Developer interview process in New York, New York.

Klaviyo Work Experiences

Great Culture and compensation

Software Developer • Current Employee

February 10, 2021

Pros: Very nice people all working towards a common goal that is to make things better for everyone. Good compensation and benefits.

Cons: Nothing that would be a con.

Great Culture and compensation

Software Developer • Current Employee

February 10, 2021

Pros: Very nice people all working towards a common goal that is to make things better for everyone. Good compensation and benefits.

Cons: Nothing that would be a con.

Beware, run away

Software Engineer • Current Employee

October 12, 2026

Pros: Many projects; an AI-first culture; able to ship fast and see results quickly.

Cons: Low compensation, working overtime, and management cares about the quantity of output over quality, where everything is AI generated slop, and leadership is lost and wants to go all in on everything.

Beware, run away

Software Engineer • Current Employee

October 12, 2026

Pros: Many projects; an AI-first culture; able to ship fast and see results quickly.

Cons: Low compensation, working overtime, and management cares about the quantity of output over quality, where everything is AI generated slop, and leadership is lost and wants to go all in on everything.

Excellent Learning Opportunity, The Challenge Is Now

Software Engineer • Former Employee

February 5, 2018

Pros: As an engineer, there were plenty of opportunities for boundless experimentation at Klaviyo that provided career growth and product contribution. Everyone has the freedom to spin up servers they need and spend time researching and learning new technologies. The product team was excellent to work with as an engineer, and they allowed engineering to have a lot of input into the roadmap. Come here to learn a lot about distributed systems, all Amazon web services, and the email sending pipeline integrating into ecommerce. You will learn a great, helpful amount to enable you for your next role.

Cons: There needs to be prioritization into the following R&D principles to make the team world class: * Aligned dev environments: right now there are 5 different independently designed systems and bug recreation & new local feature implementation is challenging * Product team leaders need more experience: more experienced leaders could help design better UIs and hold more rigid stances on goals & roadmaps * Chocked-full of 1st-time startup employees: this is dangerous because without careful attention burnout can be produced & inefficient systems of operation * Not an attractive start-up for financial gains: stock prices were always expensive and the plethora of shares handed out to Engs mostly cannot be afforded by them, and hopefully AMT will not bite them later (many of them do not understand AMT so this is scary) * You'll have to work days, sometimes late at nights, and be on call. It's very difficult for the company to understand work-life balance, and that's clear when you hear about the CEO even working during his wedding.

Excellent Learning Opportunity, The Challenge Is Now

Software Engineer • Former Employee

February 5, 2018

Pros: As an engineer, there were plenty of opportunities for boundless experimentation at Klaviyo that provided career growth and product contribution. Everyone has the freedom to spin up servers they need and spend time researching and learning new technologies. The product team was excellent to work with as an engineer, and they allowed engineering to have a lot of input into the roadmap. Come here to learn a lot about distributed systems, all Amazon web services, and the email sending pipeline integrating into ecommerce. You will learn a great, helpful amount to enable you for your next role.

Cons: There needs to be prioritization into the following R&D principles to make the team world class: * Aligned dev environments: right now there are 5 different independently designed systems and bug recreation & new local feature implementation is challenging * Product team leaders need more experience: more experienced leaders could help design better UIs and hold more rigid stances on goals & roadmaps * Chocked-full of 1st-time startup employees: this is dangerous because without careful attention burnout can be produced & inefficient systems of operation * Not an attractive start-up for financial gains: stock prices were always expensive and the plethora of shares handed out to Engs mostly cannot be afforded by them, and hopefully AMT will not bite them later (many of them do not understand AMT so this is scary) * You'll have to work days, sometimes late at nights, and be on call. It's very difficult for the company to understand work-life balance, and that's clear when you hear about the CEO even working during his wedding.

Great Culture and compensation

Software Developer • Current Employee

February 10, 2021

Pros: Very nice people all working towards a common goal that is to make things better for everyone. Good compensation and benefits.

Cons: Nothing that would be a con.

5.0
Great Culture and compensation
Software Developer • Current Employee
Boston, MA
February 10, 2021
Pros: Very nice people all working towards a common goal that is to make things better for everyone. Good compensation and benefits.
Cons: Nothing that would be a con.

Beware, run away

Software Engineer • Current Employee

October 12, 2026

Pros: Many projects; an AI-first culture; able to ship fast and see results quickly.

Cons: Low compensation, working overtime, and management cares about the quantity of output over quality, where everything is AI generated slop, and leadership is lost and wants to go all in on everything.

1.0
Beware, run away
Software Engineer • Current Employee
Boston, MA
October 12, 2026
Pros: Many projects; an AI-first culture; able to ship fast and see results quickly.
Cons: Low compensation, working overtime, and management cares about the quantity of output over quality, where everything is AI generated slop, and leadership is lost and wants to go all in on everything.

Excellent Learning Opportunity, The Challenge Is Now

Software Engineer • Former Employee

February 5, 2018

Pros: As an engineer, there were plenty of opportunities for boundless experimentation at Klaviyo that provided career growth and product contribution. Everyone has the freedom to spin up servers they need and spend time researching and learning new technologies. The product team was excellent to work with as an engineer, and they allowed engineering to have a lot of input into the roadmap. Come here to learn a lot about distributed systems, all Amazon web services, and the email sending pipeline integrating into ecommerce. You will learn a great, helpful amount to enable you for your next role.

Cons: There needs to be prioritization into the following R&D principles to make the team world class: * Aligned dev environments: right now there are 5 different independently designed systems and bug recreation & new local feature implementation is challenging * Product team leaders need more experience: more experienced leaders could help design better UIs and hold more rigid stances on goals & roadmaps * Chocked-full of 1st-time startup employees: this is dangerous because without careful attention burnout can be produced & inefficient systems of operation * Not an attractive start-up for financial gains: stock prices were always expensive and the plethora of shares handed out to Engs mostly cannot be afforded by them, and hopefully AMT will not bite them later (many of them do not understand AMT so this is scary) * You'll have to work days, sometimes late at nights, and be on call. It's very difficult for the company to understand work-life balance, and that's clear when you hear about the CEO even working during his wedding.

3.0
Excellent Learning Opportunity, The Challenge Is Now
Software Engineer • Former Employee
Boston, MA
February 5, 2018
Pros: As an engineer, there were plenty of opportunities for boundless experimentation at Klaviyo that provided career growth and product contribution. Everyone has the freedom to spin up servers they need and spend time researching and learning new technologies. The product team was excellent to work with as an engineer, and they allowed engineering to have a lot of input into the roadmap. Come here to learn a lot about distributed systems, all Amazon web services, and the email sending pipeline integrating into ecommerce. You will learn a great, helpful amount to enable you for your next role.
Cons: There needs to be prioritization into the following R&D principles to make the team world class: * Aligned dev environments: right now there are 5 different independently designed systems and bug recreation & new local feature implementation is challenging * Product team leaders need more experience: more experienced leaders could help design better UIs and hold more rigid stances on goals & roadmaps * Chocked-full of 1st-time startup employees: this is dangerous because without careful attention burnout can be produced & inefficient systems of operation * Not an attractive start-up for financial gains: stock prices were always expensive and the plethora of shares handed out to Engs mostly cannot be afforded by them, and hopefully AMT will not bite them later (many of them do not understand AMT so this is scary) * You'll have to work days, sometimes late at nights, and be on call. It's very difficult for the company to understand work-life balance, and that's clear when you hear about the CEO even working during his wedding.

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