
Tillster
Data Scientist
Porto
February 12, 2026
Full-time
Data Scientist-Portugal
Remote but must live in Portugal
About Tillster
Headquartered in the USA, Tillster is the global leader in digital ordering and customer engagement solutions. For over a decade we have developed revolutionary self-service, ordering, and payments solutions.
We offer one platform: one scalable, enterprise class solution – to create world-class digital engagement solutions.
Our mission and passion are one in the same: Empower restaurants and consumers to engage and transact anywhere, anytime, and from any device.
Are you a passionate data scientist with a knack for data?
Job Description:
We are seeking an experienced and highly skilled Data Scientist with a strong background in MLOps and Artificial Intelligence (AI).
The ideal candidate will have hands-on expertise in the end-to-end lifecycle of machine learning models – from development to monitoring and optimization.
You will work closely with cross-functional teams, including engineering, data, and product, to integrate AI-powered models into broader software platforms.
A key focus will be on enhancing and maintaining our Recommender System.
Responsibilities:
- Drive the design, development, and deployment of machine learning models, emphasizing the Recommender System.
- Collaborate with data engineers and ML engineers to implement MLOps best practices.
- Oversee the operationalization of models, including real-time predictions and retraining pipelines.
- Monitor model performance post-deployment, implementing metrics and alerts.
- Build and maintain CI/CD pipelines to ensure models are rapidly and reliably updated in production.
- Ensure the model serving infrastructure is optimized for performance.
- Work closely with product managers and stakeholders to define ML model objectives.
- Implement automated testing, validation, and documentation of models.
- Act as a key technical advisor on AI and ML initiatives.
- Use Large Language Models (LLMs), such as Gemini, to enhance platform features.
- Work collaboratively with cross-functional teams.
Required Skills:
- Bachelor’s or Master’s degree in a quantitative discipline such as Data Science, Computer Science, Engineering, or a related field.
- 5+ years of experience as a Data Scientist, with at least 2+ years in MLOps.
- Proven expertise in deploying machine learning models for large-scale production.
- Hands-on experience with MLOps tools such as Airflow.
- Proficiency in Python for deep learning model development.
- Proven experience with Deep Learning and Reinforcement Learning.
- Experience with NoSQL databases (e.g., MongoDB) and JSON.
- Experience working with Recommender Systems.
- Strong knowledge of containerization and orchestration tools such as Docker and Kubernetes.
- Experience working with LLMs, such as Gemini or ChatGPT-4.
- Strong teamwork and collaboration skills.
Nice to have:
- Experience with multi-tenant ML platforms.
- Familiarity with DevOps and cloud infrastructure.
- Experience working with NLP or computer vision models.
Thriving at Tillster
As a member of Tillster, you will embody our core values:
- Put Customers First: Prioritize the needs and satisfaction of our customers.
- Collaborate: Work together effectively, leveraging diverse perspectives.
- Innovate: Embrace creativity and pursue new ideas.
- Operate from Data: Use strong critical thinking skills.
- Drive Results: Focus on achieving tangible outcomes.
- Own It: Take responsibility for your actions.
- Be Passionate and Have Fun: Bring enthusiasm to your work.
The Interview Process
- Recruiter interview with a Talent Acquisition Specialist.
- Final interview with our Data Science Team Leader.
Pay and Benefits (PORTUGAL)
- Compensation competitive to market and geographical location DOE.
- Meal allowance for each day worked available through meal card.
- Up to 20 federal and local/municipal holidays.
- Up to 22 days of vacation every holiday year.
- Tillster pays the premium for employee private health insurance.
Tillster is proudly an Equal Opportunity Employer
No Visa Sponsorship
Principals only – no Agencies or calls please