Full-Time

Data Science Lead

f/m/d

Posted on 9/17/2025

applike group

applike group

201-500 employees

Builds independent app-focused companies for publishers

No salary listed

Hamburg, Germany

Hybrid

Hybrid role; 3 core office days per week in Hamburg.

Category
Data & Analytics (1)
Required Skills
Amplitude
Python
MySQL
Data Science
R
Apache Spark
Apache Kafka
Julia
Scala
Looker
Data Analysis
Requirements
  • A tech degree in mathematics, physics, computer science, or a related field, or alternatively five years of professional experience in data science.
  • Two or more years of experience leading and/or mentoring people, including activities such as hiring, conducting regular one-on-one meetings, creating career plans, and practicing pair programming.
  • Strong knowledge of Python, R, Scala, Julia, or other programming languages used in data science.
  • The ability to understand business needs and build data science solutions that help the business and product.
  • Experience developing deep learning models and applying them in a production environment with traffic exceeding one million predictions per day.
  • Excellent analytical skills with the ability to identify multiple potential solutions for any problem.
  • Experience drilling into large data sets from diverse sources, including AWS Athena, Kafka, Spark, S3, and MySQL.
  • Ability to dive deep into mathematical foundations and explain complex topics in a clear and accessible way.
  • Excellent communication and collaboration skills, with the ability to communicate clearly in both written and spoken form and tailor communication to different audiences.
Responsibilities
  • Work closely with Supply & Demand Tech and Product teams to provide data science models that balance advertisers’ and monetizers’ goals with the end users’ experience.
  • Build, maintain, and develop new and existing models such as classifications and recommendations.
  • Be hands-on by performing data science tasks on your own for at least 50 percent of working time.
  • Grow and manage the data science team by hiring new members, organizing routines, and setting guidelines for code style, documentation, and best practices.
  • Mentor and train data scientists to improve analysis, programming, communication, and planning skills.
  • Own critical data science documentation, including experiments and implementation details, and advocate for data-related topics; serve as the go-to person in your area of expertise.
  • Contribute to the company’s strategic planning by working on a long-term roadmap and quarterly OKRs.
  • Analyze business data to identify opportunities for improvement and lead projects that drive substantial company growth.
Desired Qualifications
  • Technology and infrastructure knowledge such as Apache Airflow, hosting models, and deploying models.
  • Experience in the advertising technology industry.

AppLike Group builds and manages a portfolio of independent companies that provide specialized tools for mobile app publishers, including advertising networks, mobile games, and growth automation platforms. These products work by leveraging shared technology and data across the group to help developers acquire users, monetize apps through rewarded gameplay, and automate marketing strategies. Unlike traditional software firms, AppLike Group operates as a "company builder," launching autonomous businesses like adjoe and Sunday that focus on specific niches while benefiting from a central pool of knowledge. The company's goal is to provide a complete ecosystem of solutions that help app publishers scale their businesses and increase revenue in the global app market.

Company Size

201-500

Company Stage

Late Stage VC

Total Funding

$110M

Headquarters

Hamburg, Germany

Founded

2015

Simplify Jobs

Simplify's Take

What believers are saying

  • justDice's rewarded gaming aligns with 2025 shift toward engagement-based monetization over traditional ads.
  • adjoe's premium video ad formats capture higher CPM rates in fragmented global mobile ad market.
  • justtrack automates user acquisition, addressing industry shift toward programmatic growth optimization for publishers.

What critics are saying

  • Google Privacy Sandbox blocks third-party SDK trackers, crippling justtrack's automation and slashing retention.
  • Unity and IronSource-Microsoft consolidation erode adjoe's market share through integrated, superior ad solutions.
  • EU DMA fines target Sunday's addictive mechanics with €50M penalties, forcing monetization redesigns.

What makes applike group unique

  • Vertically integrated company builder covering full mobile app value chain from monetization to growth.
  • justDice leads rewarded gaming with 50M+ users, capturing engagement-based monetization trend.
  • Shared infrastructure across adjoe, justDice, Sunday, justtrack enables rapid scaling and operational efficiency.

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Benefits

Hybrid Work Options

Flexible Work Hours

Mental Health Support

Unlimited Paid Time Off

Employee Assistance Program

Growth & Insights

Headcount

6 month growth

0%

1 year growth

2%

2 year growth

-1%
INACTIVE