Senior Data Scientist & Team Leader for Mobile Applications

Good services are created in efficient teams. Ours consists of representatives of various specializations, such as: internet and mobile technologies, dietetics, fitness, psychology, design, UX, marketing.
As we create our online diet and fitness solutions, we change the habits of thousands of people. Our flagship project (but not the only one) is the application Diet & Training by Ann created in cooperation with Anna Lewandowska which has been downloaded over 3M times and has been featured by Apple in the App of the Day list. We create our own products, we make our own decisions in terms of the direction we want to take, and we have built a stable business model which finances the company’s operations.

Senior Data Scientist & Team Leader for Mobile Applications


Location: Remote or Poznań
Form of employment: B2B contract, remote + visits in Poznań (at least once a month)
                                        or work in our office in the center of Poznań

Do you love data from hundreds of thousands of mobile apps users? Are you keen on drawing unconventional conclusions and want to have a real impact on product development and the actions of other team members? Do you know that analytics is crucial in analyzing marketing activities? Are you keen on ML? You’re in the right place!

Business objective:
Developing processes and tools necessary for devision-making in data-driven product development. Setting goals and managing a team of 2 people (Data Analyst + Data Engineer). Supporting the marketing  & the product team with more detailed data analysis. These actions are to contribute to the increased app user  retention and better allocation of marketing budget expenses, and should ultimately translate into an increased financial result of the company.


  • Operational
    • managing a team of 2 people (Data Analyst + Data Engineer
    • ownership of the data loop in the company (from creation, through ETL, to consumption) including design and optimization of data processes
    • creation and analysis of data reports (e.g. cohorts, churn, retention, KPI, MRR, CAC)
    • data interpretation and drawing conclusions
    • close cooperation with the marketing department in optimizing acquisition campaigns and reactivating users, support in choosing optimum promotion channels
    • cooperation with the product team and analysis of differential tests for new functionalities and their impact on user retention
    • cooperation with the IT department on implementation guidelines
    • making sure the collected data is correct and the documentations is up-to-date in terms of analytics
  • Tactical
    • sharing knowledge and cultivating data-driven approach in the company
    • designing analytical solutions (tools, schemas) and application of the solutions to business
    • introduction of ML tools & processes into the company
    • strategic cooperations with Board of Directors

You are the perfect candidate if (requirements):

  • you have a minimum of 3 years of experience in analytics in a similar positions
  • you have worked for at least a year as an analyst in the mobile application environment
  • you know Tableau, Google BigQuery, Firebase, Facebook Analytics, Google Analytics for Firebase, Appsflyer
  • you can integrate various data sources, generate reports, create dashboards
  • you can analyze a huge amount of data and draw accurate conclusions
  • you understand database structures
  • you have high self-organization skills and the ability to prioritize tasks
  • you have a proactive approach to your responsibilities
  • you can and want to share knowledge and conclusions with other departments
  • you are interested in Machine Learning and statistics
  • you speak fluent English

It will also be a big advantage if:

  • you have experience with the in-apps subscription business model and understand its subtleties
  • you have experience in calculating LTV
  • you are keen on healthy lifestyle

We offer:

  • working on projects that are used by tens of thousands of people and affect their lives on a daily basis
  • the opportunity to implement your own ideas – we are an agile company and we implement new solutions quickly. You will have a real impact on the product development and the work of other departments
  • high salary adequate to skills and managed budgets
  • daily lunch catering or healthy snacks delivered directly to your doorstep
  • Multisport sport card
  • online English lessons
  • modern and comfortable office in the center of Poznań or the possibility to work remotely
  • administrative assistance in relocation to Poland
  • You can find more reasons why it’s worth working for DietLabs here:


You have just submitted your CV and you are curious what will happen next?

  1. If your CV passes the verification process our recruiter will contact you to conduct a short phone call interview
  2. You will get a task to complete via email
  3. You will have an online interview with the Board of Directors

Then the decision is taken!


Send in your CV or link to your LinkedIn profile to

with “Senior Data Scientist & Team Leader for Mobile Applications” in the email subject line.