Senior Data Scientist

At Mindera, we believe that software is built by people, for people, with high-performance systems that impact users worldwide. We are looking for a Senior Data Scientist to join an agile, collaborative team where your voice matters as much as your code.

The Data Scientist translates complex marketing and product challenges into clear, data-driven decisions. You will build statistical models, measure real business impact, and help non-technical stakeholders make confident investment decisions with independence and high autonomy.

We value empathy, self-organization, and a positive attitude. If you are approachable, communicate clearly, and believe that team fit is just as important as technical prowess, you'll feel right at home here.

At Mindera we encourage the use of AI to assist with coding and related tasks. We find a persons skill in engineering and software craft, has a big impact long term successful delivery, with or without AI. Our goal in the interview process is to understand the candidates knowledge and skill with engineering.

If you need to, or plan to use AI, please be transparent with us when you're using it, to avoid issues and misunderstandings that can either: impact your chance of securing the role or impact your success at Mindera.

National and international expected traveling time varies according to project/client and organizational needs: 0%-15% estimated.

💪 How You'll Contribute

• Problem Framing: Partner directly with Marketing and Product leadership to turn vague business problems into clear metrics and actionable hypotheses.
• Statistical Modeling & Causal Analysis: Build, interate, and monitor statistical models. Distinguish genuine causal impact from correlation to optimize marketing spend and product growth.
• Experimentation & Prototyping: Design holdout tests and quasi-experiments (or A/B tests) where clean randomization isn't possible. Move rapidly from hypothesis to verified proof-of-concept.
• Data Storytelling: Translate complex algorithmic behavior into simple, visual narratives for US/UK stakeholders.

🌿 We're Looking for Someone Who...

• Has a Business-First Mindset: You balance statistical rigor with the speed required for effective business decisions.
• Is an Effective Communicator: You possess clear, fluent English communication skills and are entirely comfortable presenting technical work to non-technical business leaders.
• Brings Domain Context (Nice to have): You have experience in Gaming, Entertainment, or Marketing, specifically dealing with LTV, Churn, Retention, and Segmentation.

🛠️ Your Technical Toolkit:

• Statistical Rigor: Proven experience building statistical or ML models, with a deep understanding of causality vs. correlation in real-world data (e.g., Diff-in-Diff, propensity scores, uplift, or structural time series).
• Programming: Advanced proficiency in either Python OR R for multi-dimensional data handling (both are not required).
• Data Carpentry: Advanced SQL skills to independently query, clean, and architect complex datasets.
• Experimentation (Nice to have): Familiarity with Geo-lift, holdouts, or formal A/B testing frameworks.
• Stack & Tools (Nice to have): Experience working with Databricks, Snowflake, major Cloud providers (AWS, GCP, Azure), AI/ML toolkits, or Bayesian libraries.

🎊 What’s in it for You?

We work in Self-organization culture and therefore we offer a flexible, supportive environment where you are trusted to manage your own time and career.

• Well-being First: health insurance and "Open Holidays" because we trust you to know when you need a break.
• Flexible Working hours and Work: Work from our vibrant hubs in Porto, Aveiro, or Coimbra, or choose a remote setup that works for you. As long as you are based in Portugal :)
• Career Growth: A dedicated budget for training and conferences, plus a transparent profit-sharing model.
• Tools for Success: Choose Laptop & Peripherals that best suit your needs, plus Hotspot with unlimited usage (PT), for work or Netflix ;)
• Team work makes the dream Work: Mindera Annual Trip, Sports, and sharing groups to connect and have fun.

🫂Why Mindera?

At Mindera, we use technology to build products we are proud of, with people we love.

We believe diverse teams build better products. Mindera is a place where you can be your authentic self, regardless of gender, age, ethnicity, religion, or background. We strive to create an environment where everyone feels they belong and has an equal opportunity to grow.

Most of all, you get to work with a group of great people in a politics free environment where the whole team owns the project together. Our culture reflects our lean and self-management mindset, encouraging colleagues to take risks, make decisions, collaborate openly, and communicate with everyone.

Freedom and responsibility go hand in hand, and we value commitment, feedback, and empathy. We are proud of our work and love learning about everything as we navigate an Agile, Lean, and collaborative environment.

Curious to know more? Check out our Blog and our Handbook!

With offices located across Portugal,United Kingdom,United States,India,Romania,Brazil,Morocco,Spain,Australia, Vietnam join us as we expand and influence the future of software engineering worldwide.