Senior Data Scientist / Team Lead

TOOPLOOX SP. Z O.O.; Warszawa; On-site; PLN 80,000 - 120,000; Full time

Job summary

A leading technology company in Wrocław is seeking a Data Science professional to lead end-to-end projects. You will collaborate with business stakeholders, present findings clearly, and contribute to team development. Fluency in English is required, with Polish as a plus. The company offers a flexible work environment, inviting you to work from their offices or remotely.

Benefits

Flexible working hours

Remote work options

Office pizza oven

Pet-friendly office

Qualifications

• Several years of experience in delivering end-to-end data science projects.
• Strong skills in exploratory data analysis and predictive modeling.
• Excellent communication skills to translate technical concepts.

Responsibilities

• Work on data science projects from exploration to deployment.
• Collaborate with stakeholders to design machine learning solutions.
• Present findings clearly to technical and non-technical audiences.
• Support presales processes and define analytical roadmaps.

Skills

Data analysis

Machine learning

Python programming

Team leadership

Communication

Feature engineering

Time series forecasting

Client-facing skills

Job description

Hi there!

We’re Tooploox, a Solvd Inc. company

We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 50+ person R&D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.

Now, as Solvd Inc. company, we’re building on our strengths with even greater global reach and resources — while keeping the creative, human-scale culture that defines us here in Poland. If you want to work on meaningful AI projects, with space to grow and the freedom to innovate, you’ll feel right at home.

Feel invited!

What you will do:

• Work on end-to-end data science projects involving classical machine learning or statistical methods (e.g. time series forecasting) as well as deep learning approaches from data exploration and modeling to deployment.
• Collaborate with business stakeholders to understand their needs and translate them into machine learning solutions.
• Present complex analytical findings in a clear, actionable way to both technical and non-technical audiences.
• Contributing to analytical planning and ensuring alignment with business objectives.
• Actively support presales processes by preparing data/ML solution concepts, participating in client meetings, and estimating project scope and potential.
• Help shape the future Data Science team by contributing to the area’s development strategy and supporting recruitment initiatives.

Experience and skills you need to join us:

• Experience as a data science professional with several years of hands‑on work delivering end‑to‑end projects - from exploratory data analysis to model deployment, results processing and evaluation (e.g. A/B tests).
• Expertise in working with tabular data and time series, including strong skills in EDA, feature engineering, predictive modeling, and evaluation.
• Good programming skills in Python.
• Experience as a proactive team leader with a track record of managing analytics teams and coordinating work with business stakeholders.
• Excellent communication skills - able to clearly translate complex technical topics into business‑friendly language and vice versa; capable of transforming business requirements into effective ML solutions.
• Solid understanding of business data and processes.
• Confidence in client‑facing environments - skilled at gathering requirements, shaping analytical roadmaps, and delivering measurable business value in real‑world settings.
• Fluency in English (you will attend meetings with English speaking clients). Polish is a plus.

It would be great if you also have:

• Experience with deep learning models, computer vision, GenAI etc.

How we work:

At Tooploox, you have the flexibility to choose your working hours and location. While we value remote work, we also believe in building relationships and invite you to join us in our Warsaw and Wrocław offices. Enjoy a relaxed atmosphere and try some “home‑made” pizza from our office pizza oven. We love having pets in the office, so feel free to bring yours along.

Join us and shape the future of AI while working the way you like!