Skip to content
Esc
Internships in Canada
New-grad roles in Canada
Remote roles
Roles that show pay
Postings at high ghost risk
PayWhat student tech roles in Canada pay
Check a linkPaste a posting to see its real age and ghost risk
JobsEvery open tech role
CompaniesWho fills fastest, who leaves postings up
Hiring calendarWhen employers open intern and new-grad roles
Skills gapWhat postings ask for that you don't have
Your resumeScore and fixes
Your matchesOpen roles ranked by your resume
ApplicationsSaved, applied, interviewing, offers
SettingsTheme, text size, motion
How it works

↑ ↓ to move, Enter to open? every shortcut

Keyboard shortcuts

CtrlKor/
Search employers, postings and pages
JorK
Next or previous posting in a list
O
Open the posting's page
Enter
Open it in the preview, on wide screens
S
Save or unsave it
?
This list
Esc
Close
Kayzen

Senior Data Scientist (m/f/d)

  • Seen live on Kayzen's site 2 days ago
  • Senior
  • Remote
Pay
Not stated
Location
EMEA Remote
Open for
12+ days
First seen
Oct 23, 2026
Apply on Kayzen's site (opens in a new tab)

Posting record

No flags

Open 12+ days

The posting's record, oldest first
  1. Kayzen's site dates the posting
  2. Ghostless first sees this listing
  3. Last checked: still up
How we know

It hasn't been reposted, listed twice, or left up unusually long, and the posting doesn't say it's a talent pool.

Ghostless records the day it first sees a posting, so a repost can't reset its age. This one was already up when Ghostless started tracking Kayzen, so its true age is longer.

Last checked Nov 2, 2026.

How well do you match?

See how much of this posting your resume shows, and what it's missing.

Upload your resume

What it asks of you

5+ years of experience
“Minimum 5 years of experience in developing data science products, from initial research through to production deployment.” (quoted from the posting)

What the posting discloses

Not stated: Pay, real vacancy, AI screening.

Why these three

Ontario requires postings from employers with 25 or more staff to state the pay, whether the vacancy exists, and whether AI screens applicants.

Some employers add pay only on their own site. Check the original posting before you rule it out.

Skills mentioned

About the role

Europe or India, Remote

_______________________________________________

Hello👋I am Puneet , Co-founder and CPO at Kayzen, and I am now looking for a Senior Data Scientist to join our team 🙌

But wait, you have not heard of Kayzen before?😃

Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface.

The Team

You will work with a carefully selected, diverse and globally distributed Data Science team (like Heiko , Chen ) on various machine-learning models that process terabytes of data, serving billions of ad requests and users around the globe in real-time. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar ad-tech industry. We would like you to be part of our journey, as our Senior Data Scientist (m/f/d) .

Responsibilities

Our day-to-day work in Data Science and Machine Learning encompasses a wide range of activities, including

  • Enhancing Models: Continuously improving existing models by incorporating new features, fine-tuning parameters, and utilizing additional data.
  • Algorithm Development: Collaborating with our Machine Learning Engineering team to develop and deploy scalable supervised and unsupervised learning algorithms.
  • Data Exploration: Identifying and exploring new data sources while researching innovative ways to leverage both new and existing data effectively.
  • Solution Research: Investigating new Machine Learning solutions to optimize every step of our value chain.
  • A/B Testing: Regularly conducting and evaluating A/B tests to drive insights and refine our strategies.

You’ll be a great fit if you resonate with the following principles of Data Science and Machine Learning

  • Simplicity First: We prioritize finding the best solutions to challenges rather than forcing problems to fit predetermined solutions.
  • Impact-Driven: We leverage Machine Learning to enhance our product and drive performance for our clients, always focusing on tangible business outcomes.
  • Collaborative Spirit: Our teams consist of analysts, engineers, and data scientists, making strong communication skills essential for success.
  • Embrace Experimentation: We believe in the power of experimentation to innovate and refine our approach continually.

Requirements

  • Minimum 5 years of experience in developing data science products, from initial research through to production deployment.
  • Strong coding skills with a focus on clean, reproducible, and well-tested code.
  • Proficient in key tools and technologies including Python, Spark, Hadoop, Airflow, Docker, and SQL.
  • Hands-on experience with algorithms for handling sparse and large datasets, including applications in prediction, clustering, and outlier detection.
  • Experience in building neural network-based products for tasks such as classification, regression, and multi-task learning is highly valuable.
  • Bonus skills: Knowledge of reinforcement learning and large-scale optimization problems is a significant asset.
  • Good understanding of dashboards and SQL for developing and enhancing monitoring tools.
  • Previous experience in Ad-Tech is a must for Senior role.

What do we offer?

  • Directly working with Founders and an opportunity to drive direct impact
  • Exceptional career growth and learning opportunity
  • A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
  • A fun, driven, and multinational team located across Germany, India, Argentina, Canada, Spain, the UK and many more countries.
  • A flexible work-from-home arrangement
  • Opportunity to relocate to our office in Berlin
  • A 500-dollar home-office setup budget
  • A 1000-dollar annual learning and development budget

Something wrong with this posting?