Senior Data Scientist

Events by L; Stockholms kommun; Hybrid; SEK 900,000 - 1,300,000; Full time

Benefits offered by this job

Competitive salary

30 days vacation

Private health insurance

Parental leave top‑up

Pension

Wellness contributions

Tools and devices budget

Lab Days

Job summary

Truecaller is seeking a Senior Data Scientist to lead high-impact initiatives at the intersection of data science, product, and engineering. You will apply ML, statistics, and data engineering to solve meaningful problems with strong cross-team collaboration and stakeholder engagement.

You will mentor junior to senior data scientists, shaping production-ready models and data products that improve user safety, trust, and experience across millions of users worldwide.

Qualifications

• Bachelor's or Master's degree in Data Science, ML, CS, Statistics, or Mathematics.
• At least 5 years using data science and ML to solve real-world problems.
• Excellent programming skills in Python and SQL.
• Solid understanding of Python tooling: IDEs, unit testing, static checks.
• Excellent communication and ability to present insights to non-technical stakeholders.

Responsibilities

• Explore problem spaces and craft data science solutions that improve customer experience.
• Plan data science work with emphasis on cross-team collaboration.
• Gather and understand data to build data science products for customers.
• Collaborate with stakeholders to build data science products at scale.
• Coach and mentor junior to senior data scientists to boost skills.

Skills

Python

SQL

Data science

Machine learning

Communication

Problem solving

Ownership

Team collaboration

Education

Bachelor's or Master's in data science

Tools

BigQuery

Looker

Power BI

Tableau

Job description

Join Truecaller – The place where innovation meets impact!

Truecaller's mission is to build trust in communication by making it safer, smarter, and more efficient. Born in Sweden, trusted by the world, and here's why we stand out:

• We are trusted by over 450 million active users every month across 190+ countries
• We identify over 15 billion calls daily, helping users avoid spam and scams
• We are powered by a team of 450+ employees from 45+ nationalities

We always look for people who take initiative, own their work, and keep raising the bar. An entrepreneurial mindset matters here, especially when it turns bold ideas into real actions. We stay collaborative and focused, always searching for smarter paths forward. If you want to make an impact and grow with a team that inspires millions, you'll fit right in.

The role:

As a Senior Data Scientist, you will lead high-impact initiatives at the intersection of data science, product, and engineering. The role combines machine learning, statistics, and data engineering to solve meaningful, real-world problems, with strong collaboration at its core, working closely with stakeholders across the organization and within the team to deliver results that no single person could achieve alone.

What you will do

• Exploring the problem space and finding data science solutions that provide step increases in customer experience
• Planning data science work for the team, with an emphasis on collaboration to achieve common goals
• Gathering, collating, and understanding the data necessary to create data science products that delight the customers
• Collaborating with stakeholders throughout Truecaller to find and build data science products that solve business and customer problems at scale.
• Coaching and mentoring junior to senior data scientists to improve their technical skills and productivity

What you bring in

• Bachelor's or Master's degree in Data Science, Machine Learning, Computer Science, Statistics, Mathematics, or a related field.
• At least 5 years of experience in using data science and machine learning to solve real-world problems
• Excellent programming skills in Python and SQL
• Solid understanding and experience with the tooling for Python - IDEs, unit testing frameworks, and static code checks
• Excellent communication and interpersonal skills, with the ability to present complex data and insights to non-technical stakeholders
• Strong problem-solving skills and a results-oriented mindset
• Customer obsession
• Able to own and drive projects and products to production and iteratively improve them over time

It would be great if you also have

• Understanding how to query very large data efficiently (we use BigQuery)
• Experience collaborating with C-suite executives
• Experience with data from mobile applications
• Experience with data visualization and reporting tools, such as Tableau, Looker, or Power BI (we use Looker)
• A solid understanding of the engineering requirements necessary to put machine learning solutions into production and scale them to hundreds of millions of customers

What we offer:

We support growth through learning resources, leadership programs, mentoring, and real hands‑on work. People can move between teams and projects to build new skills and keep things interesting. We offer clear internal mobility and a transparent path for progression, with leaders who stay involved and provide guidance throughout the year. In addition, you will benefit from:

• A comprehensive compensation package: We offer a competitive salary, 30 days of paid vacation, private health insurance, parental leave top‑up, pension, and wellness contributions.
• Modern tools to do your best work: Choose your preferred computer and phone within our budget, so you can work comfortably and efficiently.
• A people‑focused office culture: We value in‑person collaboration and follow an office‑first model, with some flexibility. Our offices offer a vibrant environment with opportunities to learn, connect, and recharge, from breakfast, lunch, and well‑stocked snack stations and quiet spaces to team activities such as movie nights, tech meetups, and cultural events. There's something for everyone.
• Truecaller's "Lab Days" offer a space for imagination: 5 times per year for 3 days, where everyone steps away from their normal tasks to explore new, bold ideas and build things they've always wanted to. It's a space where curiosity leads the way, and prototypes take shape. Some concepts even make it into production, and a few have grown into real features used by millions today. Lab Days allow you to be creative, learn fast, and help shape Truecaller's future.

Come as you are:

Truecaller is committed to building a diverse and inclusive team. We believe that a wide range of backgrounds, perspectives, and experiences strengthens our products and our culture. No matter where you're from, what language you speak, or how you identify, we value what makes you unique and would love to get to know you.

Check out Life at Truecaller - Behind the code: https://www.instagram.com/lifeattruecaller/

As part of the recruitment process, we will conduct a background check.

We only accept applications in English