Senior Data Scientist

| Greater Boston Area
Klaviyo is looking for data scientists to analyze large data sets (we’re 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 learning algorithms. The right candidate will have both a solid fundamental understanding and deep practical experience with at least a few modeling and machine learning techniques.
Our goal is always to match the right assumptions and models to the right problem -- they don’t necessarily have to be complex. You should have experience building models that are used by people to make better decisions. We’re focused on shipping early and often. We prefer iterative solutions that are incrementally better to the perfect solution. You should also be able to measure and know what impact your models had on the decisions people made -- e.g. did they outperform the previous best model or a human decision maker?
Our data science 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 upfront research and shipping products that help our customers learn and grow from their data.

You:

  • Have a strong fundamental understanding and deep experience with at least a few machine learning algorithms (e.g. regressions, decision trees, k-means clustering, neural networks).
  • Understand Bayesian modeling techniques.
  • Are capable of analyzing data and making rigorous statements about what can or cannot be concluded.
  • Have experience designing and implementing model performance/validation assessments.
  • Have a background in statistics and understand different distributions and the conditions under which they’re valid.
  • Know how code and have used data science tools and packages.
  • Have demonstrated a measurable impact based on the models you’ve created. It’s not always easy getting a model correct and we love talking about places we got stuck and working as a team to think through ideas that could unblock us.
  • Have a desire to ship features powered by data science (in other words, you’re excited by both upfront research and actually getting models into production at cloud scale).

You Have:

  • Bachelor’s or advanced degree in statistics, applied mathematics, computer science or other relevant quantitative discipline, or equivalent industry experience.
  • Have worked in a data science role for 5+ years professionally or academically and can talk about your projects and the techniques you used.

About Us
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; and you’ll do the best work of your career with people who are just as motivated and talented as you are.
If this sounds like your ideal place to work, drop us a note!

Read Full Job Description

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.

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

Culture
Volunteer in local community
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.
Daily stand up
Open door policy
Team owned deliverables
Team based strategic planning
Group brainstorming sessions
Pair programming
Open office floor plan
Diversity
Dedicated Diversity/Inclusion Staff
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
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
Company sponsored family events
Acme co. sponsors family oriented events Annually.
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.
Fitness Subsidies
Klaviyo offers 3 months of subsidised gym membership.
Professional Development Benefits
Job Training & Conferences
Acme Co. offers employees professional development opportunities like Annual individual budget for training, Onsite training courses, The ability to attend job related conferences and seminars.
Tuition Reimbursement
Our tuition reimbursement plan offers an annual max of $3000 for continuing education.
Lunch and learns
Klaviyo hosts weekly Lunch and Learns.
Promote from within
Continuing Education stipend
We offer $3000 annualy for continuing education.
More Jobs at Klaviyo56 open jobs
All Jobs
Data + Analytics
Design + UX
Dev + Engineer
HR
Marketing
Operations
Product
Sales
Operations
new
Boston
Data + Analytics
new
Boston
Product
new
Boston
Sales
new
Boston
Operations
new
Boston
Operations
new
Boston
Operations
new
Boston
Developer
new
Boston
Developer
new
Boston
Developer
new
Boston
Data + Analytics
new
Boston
Developer
new
Boston
Product
new
Boston
Design + UX
new
Boston
Operations
new
Boston
Data + Analytics
new
Boston
Design + UX
new
Boston
Operations
new
Boston
Data + Analytics
new
Boston
Sales
new
Boston
Sales
new
Boston
Developer
new
Boston
Developer
new
Boston
Developer
new
Boston
Product
new
Boston
Developer
new
Boston
Marketing
new
Boston
Operations
new
Boston
Developer
new
Boston
Design + UX
new
Boston
Design + UX
new
Boston
Marketing
new
Boston
Operations
new
Boston
HR
new
Boston
HR
new
Boston
Design + UX
new
Boston
Operations
new
Boston
Marketing
new
Boston
Content
new
Boston
Content
new
Boston
Operations
new
Boston
Operations
new
Boston