Senior Data Scientist
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.
Developing projects in the most diverse industries – Banking, Telecommunications, Healthcare, Retail, Energy, Insurance, and Aviation, among others –, we have created an environment where the brightest enquiring minds feel at home, providing our people with the means, opportunities and support they need to thrive and innovate.
We're looking for a Senior Data Scientist ready to take on new challenges with our Closer team! ?
? Hybrid model in Lisbon - For this position, you must have residency and a work permit in Portugal.
Are you the one?
- 4+ years of professional experience in machine learning, NLP, or conversational AI development.
- Extensive
- on experience working with large language models such as GPT-4, Claude, Gemini, LLa
MA, or similar. - Strong expertise in prompt engineering, fine-tuning, and adapting LLMs for conversational and
- oriented use cases. - Proficiency with major ML frameworks (Py
Torch, Tensor
Flow) and experience with LLM APIs (Open
AI, Anthropic, etc. ). - Strong background in speech technologies, including ASR (speech recognition) and TTS (text-to-speech), is highly desirable.
- Proven track record optimizing ML models for production environments, including latency reduction, scalability, and cost efficiency.
- Advanced degree (Master’s or Ph
D) in Computer Science, Artificial Intelligence, Machine Learning, NLP, or a related field. - Autonomy and proactivity;
- English and Portuguese Fluency (C1/C2).
We believe we are the ones to, by:
- Providing a multidisciplinary Team.
- Giving a home office kit with everything you need to perform remotely.
- Ensuring a career plan alongside professional growth.
- Providing you with a custom training plan.
- Helping you reach happiness.
Oh… and by the way, we also have:
- Several challenging complex projects.
- Stimulating teams and leaders.
- World-class Clients and Partners.
If you believe in this match as much as we do, send us your CV and reach the closer side of life.
Closer is a company that 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, physical or mental disability, or other personal characteristics.
At Closer, we embrace the unique perspectives and experiences that everyone brings, and we believe that it is a fundamental driver for the success we've achieved.
- Informações detalhadas sobre a oferta de emprego
Empresa: Closer Consulting Localização: Lisboa
Lisboa, Lisboa, PortugalPublicado: 13. 12. 2025
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