Data Scientist

Há 5 dias

Porto, Porto, Portugal ZAAI Tempo inteiro

Company Description

ZAAI
is an artificial intelligence company building
AI forecasting engines for retail companies
and providing
AI consultancy services
. We help retailers turn complex data into clear forecasts and actionable insights that improve decision-making across demand planning, inventory, and customer experience.

Our work combines
machine learning, time-series modeling, and agent-based AI systems
. We partner closely with our clients to design, build, and deploy AI solutions that deliver real business impact.

Role Description

We are looking for a
Data Scientist
to join our growing team and contribute to ZAAI's core AI products. This role is well-suited for someone with
2+ years of experience
who wants to grow while working on real-world AI systems used by retail companies.

You will work on our
forecasting engine
, and also help develop
search and recommendation solutions
, including the use of
AI agents
for data processing, retrieval, orchestration, and decision-making. You'll collaborate closely with engineers, product leaders, and consultants in a supportive, hands-on environment.

Responsibilities include:

  • Contribute to the development and improvement of
    forecasting models
    for retail use cases such as demand and sales forecasting.
  • Apply machine learning and statistical techniques to time-series and transactional data.
  • Help design and build
    search and recommendation systems
    , improving relevance, ranking, and personalization.
  • Develop and experiment with
    agent-based AI systems
    for tasks such as data processing, feature generation, semantic retrieval, and automated analysis.
  • Run experiments, evaluate model performance, and iterate based on results.
  • Collaborate with engineers to deploy models into production and improve scalability and reliability.
  • Work with consultants and clients to translate business problems into practical data science solutions.
  • Monitor models and agents in production and help improve them over time.

Qualifications:

  • 2+ years of experience as a
    Data Scientist
    , ML Engineer, or in a related role.
  • Strong foundations in
    machine learning, statistics, or related fields
    .
  • Experience with
    Python
    and common data science tools (e.g. pandas, scikit-learn, PyTorch, TensorFlow).
  • Interest or hands-on experience with
    AI agents
    , modern NLP systems, or retrieval-based architectures.
  • Comfortable working with real-world, imperfect data and learning new techniques as needed.
  • Ability to clearly communicate ideas and results to both technical and non-technical teammates.
  • Bachelor's or Master's degree in a quantitative field (or equivalent practical experience).

Bonus points if:

  • You've worked with
    retail, e-commerce, or supply chain data
    .
  • You have experience with
    time-series forecasting
    or demand planning problems.
  • You've built or experimented with
    agent-based systems
    for search, recommendations, or analytics.
  • You've contributed to production AI or data products.
  • You enjoy learning, experimenting, and growing in a collaborative team.

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