Data + Analytics//Data Engineering//Data Science//

Software Engineer (Data Science)

| Greater Boston Area

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 and listen to our data science team podcast at https://medium.com/klaviyo-data-science

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 takes ideas from inception to new machine learning-powered features that ship to our hundreds of thousands of users. You’ll be central to creating features that help our customers learn and grow from their data. For this role, we’re looking for people who are first and foremost software engineers with an interest in data science.

Technologies we use (not comprehensive!):
Python
Numpy, Scipy, Pandas
Aurora, Cassandra, Kafka
HTML, JavaScript, React
SageMaker

How you will make a difference:

Design and implement systems that run correctly, securely and reliably at scale.
Build products that enable our customers to grow faster using data science.
Be full stack, owning front-end and back-end projects.

Who You Are:

Have experience building software solutions for customer needs
Have experience implementing machine learning models, data pipelines and testing frameworks for research and production use.
Have experience processing cloud-scale data using parallel, elastic, streaming and similar techniques.
Understand how to profile code and optimize performance.
Aspire to correctness (e.g. in your code, in drawing conclusions from data)
Have a bachelor’s or advanced degree in computer science, applied math, statistics or other relevant quantitative discipline, or equivalent industry experience.

Get to know Klaviyo Klaviyo is the world’s leading owned marketing platform known for accelerating revenue for online businesses using the channels they own like email, web, and mobile. Enabling companies to leverage these owned marketing channels, Klaviyo makes it easy to store, access, analyze and use transactional and behavioral data to power highly-targeted customer and prospect communications. And unlike other marketing platforms, Klaviyo doesn’t force companies to compromise between advanced functionality or ease of use - so companies of all sizes are able to maximize their sales quickly. That’s why over 50,000 innovative companies like Unilever, Custom Ink and Eventbrite sell more with Klaviyo.

Klaviyo does not tolerate and prohibits discrimination, harassment or retaliation of or against job applicants, contractors, interns, volunteers or employees by another employee, supervisor, vendor, customer or any third party.

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Technology we use

Engineering

- JavaLanguages
- JavascriptLanguages
- PythonLanguages
- SqlLanguages
- ReactLibraries
- Twitter BootstrapLibraries
- Backbone.jsFrameworks
- DjangoFrameworks
- FlaskFrameworks
- HadoopFrameworks
- CassandraDatabases
- MySQLDatabases
- RedisDatabases

Location

We're in the heart of the Financial district with easy access to public transportation and a short walk from South Station.

“Life’s Too Short To Work With Brilliant Jerks”: Klaviyo Employees Are Brilliant *And* Supportive

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Class Is in Session: Why a Software Company Started a ‘University’

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An Insider's view of Klaviyo

What’s the vibe like in the office?

The simplest way I would describe the Klaviyo office is "energy". From the minute you start your day there's an excitement that everyone is working toward the common goal of helping businesses grow. It's a pretty amazing thing to be a part of and you can really feel it.

Jon

Director of Community Management

How do you collaborate with other teams in the company?

One of the great things about working at Klaviyo is that I get to work with amazing people from across the organization. While working in Finance isn’t intuitively a role that involves a lot of collaboration - Klaviyo’s finance team has regular interactions and team syncs with Sales Ops, Customer Support and the People Team!

Tai

Staff Accountant

What are Klaviyo Perks + Benefits

Klaviyo Benefits Overview

Klaviyo pours into team members by providing a diverse and inclusive environment. We also take pride in our quality health benefits and programs. In our efforts to achieve overall happiness for Klaviyos, we offer competitive salaries and 401K planning through Principal. Protect yourself against hardships with life and disability insurance, continue learning and developing with tuition reimbursement, and achieve peace with Headspace. Additional perks include unlimited vacation time, employee referral bonuses, commuter expenses, fitness reimbursements, free books, and a thriving company atmosphere.

Culture

Volunteer in local community

Partners with Nonprofits

Friends outside of work

Eat lunch together

Intracompany committees

We have a diversity and Inclusion committee that sponsors monthly company-wide activities to educate and enrich our employees.

Open door policy

Team owned deliverables

Team based strategic planning

Group brainstorming sessions

Pair programming

Open office floor plan

Diversity

Dedicated Diversity/Inclusion Staff

Unconscious bias training

Someone's primary function is managing the company’s diversity and inclusion initiatives

Diversity Employee Resource Groups

Hiring Practices that Promote Diversity

Health Insurance & Wellness Benefits

Flexible Spending Account (FSA)

Klaviyo employees can contribute up to $2700 annually to their FSA.

Disability Insurance

Disability insurance that covers 60% of annual salary.

Dental Benefits

Our dental plan covers : 100% for preventative care., 80% for basic restorative, 50% for major restorative.

Vision Benefits

Our vision benefits plan covers 100% for annual eye exams with $150 for glasses and contact lenses.

Health Insurance Benefits

Life Insurance

Life insurance is equal to 1 times an employee's annual salary up to 300k.

Wellness Programs

Onsite Gym

Team workouts

Live virtual Yoga

Mental Health Benefits

For example, free access to Headspace meditation app

Retirement & Stock Options Benefits

401(K)

Klaviyo's 401k plan offers stocks, bonds and international index funds to choose from.

401(K) Matching

Company Equity

Klaviyo offers equity packages to full time employees.

Child Care & Parental Leave Benefits

Generous Parental Leave

We provide up to 12 weeks of parental leave.

Flexible Work Schedule

Klaviyo provides employees with a flexible work schedule that includes Core hours, Flexible start and end times.

Remote Work Program

Family Medical Leave

Adoption Assistance

Return-to-work program post parental leave

Company sponsored family events

Vacation & Time Off Benefits

Unlimited Vacation Policy

Paid Volunteer Time

Klaviyo offers unlimited time off.

Paid Holidays

Paid Sick Days

Klaviyo offers unlimited time off.

Perks & Discounts

Beer on Tap

Casual Dress

Commuter Benefits

Klaviyo offers Tax preferred transit and parking plans for employees.

Company Outings

Klaviyo Hosts bi-annual company parties and milestone celebrations when targets are reached ! ( usually once a year)

Game Room

Klaviyo offers ping-pong tables, and a number of different gaming consoles for employee use.

Stocked Kitchen

Klaviyo offers a WELL STOCKED FREE kitchen with snacks and drinks for all employees.

Some Meals Provided

Klaviyo often surprises employees with free breakfast or meals and Free lunch on Wednesdays for all!

Happy Hours

Happy hours are hosted Once per week on Fridays!

Parking

There is a parking garage in the building.

Recreational Clubs

Fitness Subsidies

Klaviyo offers 3 months of subsidised gym membership.

Home Office Stipend for Remote Employees

Professional Development Benefits

Job Training & Conferences

Tuition Reimbursement

Our tuition reimbursement plan offers an annual max of $3000 for continuing education.

Diversity Program

Lunch and learns

Klaviyo hosts weekly Lunch and Learns.

Cross functional training encouraged

Promote from within

Continuing Education stipend

Time allotted for learning

Online course subscriptions available

View full list of perks + benefits

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