Senior Data Scientist & AI Engineer Lisboa

Senior Data Scientist & AI Engineer

Join us at Closer Consulting! ?

Mutual Respect, Empathy, Innovation, and Professional Pride. Do you see yourself within these values?

Founded in 2006 with the mission “To Challenge Complexity”, Closer Consulting is a Data Science company specializing in Business Intelligence, Advanced Analytics, and Artificial Intelligence.

We develop projects across banking, telecommunications, healthcare, retail, energy, insurance, and aviation, creating an environment where bright minds can thrive.

Hybrid work model: 1/2 days per week onsite in Lisbon or Porto.

Responsibilities

• Develop analytical solutions involving AI.
• Deliver
  - complexity analytical models, including combinatorial models and deep learning for structured and unstructured data.
• Code in R or Python and/or use cloud Paa
  S services (preferably Azure) and advanced analytics libraries such as Tensor
  Flow, Keras, Caffe, or Py
  Torch.
• Build models or applications that integrate Generative AI (Gen
  AI), such as LLMs or diffusion models, in real workflows (text generation, summarization, autonomous agents, or intelligent copilots).
• Design robust pipelines involving preprocessing and
  - tuning base models (LLa
  MA, Mistral, T5), evaluation using specific metrics (BLEU, ROUGE, perplexity), and controlled deployment via API.
• Apply ML engineering best practices for Gen
  AI applications.
• Previous experience implementing interactive data visualization solutions to present complex results is valued.

Qualifications

• Experience in developing analytical solutions involving AI.
• Hands‑hand experience with coding in R or Python and/or proficiency with cloud Paa
  S services and advanced analytics libraries.
• Strong technical expertise and adherence to ML engineering best practices.

Benefits

• Multidisciplinary team.
• Home office kit with everything you need.
• Career plan and professional growth.
• Custom training plan.
• Challenging complex projects.
• Stimulating teams and leaders.
• World‑class clients and partners.

How to apply

Send your CV to catarina. niza@closer. pt and join the closer side of life.

Closer values diversity and inclusion. We are committed to fostering an environment where everyone is treated with dignity and respect, regardless of race, gender, beliefs, sexual orientation, disability, or other personal characteristics.