Mid-Level Data Scientist - Machine Learning & Advertising Domains

Mid-Level Data Scientist – Machine Learning & Advertising Domains

Miejsce pracy: Warszawa

Technologies we use

Expected

• BigQuery
• Docker
• GCP
• numpy
• Pandas
• Python
• PyTorch
• SQL
• TensorFlow
• Vertex AI
• Vertex Pipelines

About the project

As a Senior Data Scientist – Machine Learning & Advertising Domains, you will be working for our client, a leader in digital advertising technology. You will play a crucial role in designing and refining advanced ML models for bidding, ranking, and content optimization that directly impact campaign success and platform efficiency. This is your chance to contribute to cutting-edge solutions in the high-stakes world of online advertising, driving measurable business results and technological breakthroughs.

Unleash innovation in digital advertising — shape the next generation of data-driven performance!

Warsaw-based opportunity with fully remote work model.

Your responsibilities

• Design and optimize machine learning models targeting key performance metrics such as CTR, CVR, and RoAS, embedded in core bidding logic and performance strategies.
• Architect complex models that fuse diverse data signals, including user, product, publisher, and placement features.
• Fine-tune models to meet the demands of high-throughput, low-latency online environments.
• Develop models for Dynamic Content Optimization within the DSP platform, including retargeting scenarios.
• Collaborate across teams to ensure model deployment, monitoring, and continuous improvement follow industry best practices.
• Write production-quality, tested, and well-documented Python code, leveraging CI/CD workflows and cloud infrastructure.

Our requirements

• At least 3 years of experience in data science or related fields, with a focus on machine learning development and deployment.
• Proficiency in Python, PyTorch or TensorFlow, Pandas, and NumPy.
• Solid knowledge of SQL, preferably BigQuery or similar analytic SQL.
• Extensive experience working with public cloud platforms, specifically Google Cloud Platform (Vertex AI, Pipelines).
• Proven track record in designing and training deep neural networks in production environments.
• Academic background or extensive professional experience in STEM fields such as Computer Science, Mathematics, or Physics.
• Strong engineering skills, including writing reliable, testable, and documented code, with familiarity in CI/CD practices.
• English — communicative proficiency (spoken and written).
• Only candidates with an existing legal right to work in the European Union will be considered for this role.

Optional

• Experience developing low-latency ML models for real-time applications in online advertising.
• Background working within the advertising or marketing industry.
• Experience in predictive modeling for business metrics like CTR and CVR.
• Knowledge of Real-Time Bidding (RTB) algorithms and Demand Side Platforms.
• Familiarity with traditional machine learning techniques such as Random Forests or Gradient Boosted Trees.
• Practical experience using AI-assisted coding tools to boost productivity and code quality.

This is how we organize our work

This is how we work

• at the client's site
• agile
• scrum
• kanban

This is how we work on a project

• Continuous Deployment
• Continuous Integration

What we offer

• Stable and long-term cooperation with very good conditions.
• Enhance your skills and develop your expertise in the financial industry.
• Work on the most strategic projects available in the market.
• Define your career roadmap and develop yourself in the best and fastest possible way by delivering strategic projects for different clients of ITDS over several years.
• Participate in Social Events, training, and work in an international environment.
• Access to attractive Medical Package.
• Access to Multisport Program.
• Access to Pluralsight.
• Flexible hours.

Benefits

• sharing the costs of sports activities
• private medical care
• remote work opportunities
• flexible working time
• fruits
• integration events
• corporate gym
• saving & investment scheme
• no dress code
• coffee / tea
• drinks
• christmas gifts
• birthday celebration
• sharing the costs of a streaming platform subscription
• access to +100 projects
• access to Pluralsight

Recruitment stages

• online interview
• online interview

#GETREADY to meet with us!

ITDS Business Consultants is involved in many various, innovative and professional IT projects for international companies in the financial industry in Europe. We offer an environment for professional, ambitious, and driven people.

We would like to meet you. If you are interested please apply and attach your CV in English or Polish, including a statement that you agree to our processing and storing of your personal data.

ITDS’s Whistleblower Procedure

You can report violations in accordance with ITDS’s Whistleblower Procedure available here:

ITDS Polska Sp. z o.o.

ITDS supports financial service providers to take the next steps.

We identify what’s possible, every day. Opportunities in the areas of technology, organization, and digitization.

We see where banks, insurers, payment companies, or fintech can go and how they can get there.

That’s why we want to stimulate you to ramp up your ambition. Forget what you perceive as restraints and step towards the new reality.

ITDS in Poland - Pure player in new Technologies & Financial Industry

+300 IT implementation professionals

+20 clients in the Banking, Insurance, Payment & Fintech Industry

ITDS excels in digital strategy delivery and implementation of best-of-breed lending solutions. ITDS has delivered successful strategic projects throughout Europe since 1998. We combine the experience we’ve accumulated with in-depth knowledge of technologies, business processes, and EU legislation to unlock new business opportunities.

Informujemy, że administratorem danych jest ITDS z siedzibą w Warszawie, ul. Złota 59 (dalej jako "administrator"). Masz prawo do żądania dostępu do swoich danych osobowych, ich sprostowania, usunięcia lub ograniczenia przetwarzania, prawo do wniesienia sprzeciwu wobec przetwarzania, a także prawo do przenoszenia danych oraz wniesienia skargi do organu nadzorczego. Dane osobowe przetwarzane będą w celu realizacji procesu rekrutacji. Podanie danych w zakresie wynikającym z ustawy z dnia 26 czerwca 1974 r. Kodeks pracy jest obowiązkowe. W pozostałym zakresie podanie danych jest dobrowolne. Odmowa podania danych obowiązkowych może skutkować brakiem możliwości przeprowadzenia procesu rekrutacji. Administrator przetwarza dane obowiązkowe na podstawie ciążącego na nim obowiązku prawnego, zaś w zakresie danych dodatkowych podstawą przetwarzania jest zgoda. Dane osobowe będą przetwarzane do czasu zakończenia postępowania rekrutacyjnego i przez okres możliwości dochodzenia ewentualnych roszczeń, a w przypadku wyrażenia zgody na udział w przyszłych postępowaniach rekrutacyjnych - do czasu wycofania tej zgody. Zgoda na przetwarzanie danych osobowych może zostać wycofana w dowolnym momencie. Odbiorcą danych jest serwis Hello HR oraz inne podmioty, którym powierzyliśmy przetwarzanie danych w związku z rekrutacją.
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