Data Scientist

Data Scientist-Portugal

Check all associated application documentation thoroughly before clicking on the apply button at the bottom of this description.

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 – for mobile, tablet, online, kiosk, call center, and more – creating personalized interactions based on consumer preferences, language, and currency. Our platform is compatible with 15 unique POS systems, representing over 90% coverage in multi-unit restaurants. 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 - one consumer at a time, one order at a time, billions of times over.

Job Description :

We are seeking an experienced and highly skilled Data Scientist with a strong background in MLOps, Artificial Intelligence (AI), and extensive experience deploying ML models in production environments for large-scale data across diverse clients. The ideal candidate will have hands-on expertise in the end-to-end lifecycle of machine learning models—from development and deployment 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 and ensure high performance across multi-client applications. A key focus will be on enhancing and maintaining our Recommender System.

Responsibilities :

• Drive the design, development, and deployment of machine learning models, with an emphasis on the Recommender System, ensuring scalability and robustness for handling large datasets and multiple clients.
• Collaborate with data engineers and ML engineers to implement MLOps best practices, ensuring seamless integration of models into production pipelines, including both batch and real-time predictions, automated model retraining, versioning, and monitoring.
• Oversee the operationalization of models, including real-time predictions, batch processing, and retraining pipelines, especially for the Recommender System.
• Monitor model performance post-deployment, implementing metrics and alerts to track model drift, accuracy degradation, and data changes.
• Build and maintain continuous integration (CI) and continuous deployment (CD) pipelines to ensure models are rapidly and reliably updated in production.
• Ensure the model serving infrastructure is optimized for performance, resource utilization, and cost efficiency, leveraging GCP.
• Work closely with product managers and stakeholders to define and refine ML model objectives, translating business needs into model requirements.
• Implement automated testing, validation, and documentation of models to ensure they meet performance and accuracy standards before deployment.
• Act as a key technical advisor on AI and ML initiatives, working with the team to share best practices in AI, MLOps, and model deployment, while contributing to the AI-powered decision-making systems to integrate customer data with external factors (e.g., weather, location, and time of day).
• Use Large Language Models (LLMs), such as Gemini, to enhance and develop AI-driven features within our platform.
• Work collaboratively with cross-functional teams, ensuring teamwork and communication are key aspects of problem-solving and project success.

Required Skills :

Nice to have :

Thriving at Tillster

As a member of Tillster, you will embody our core values :

The Interview Process

Making a Difference in the Tillster Way

Our business and product mission is to empower restaurants and consumers globally; by empowering, supporting, and nurturing the people who are part of the global Tillster team. We are committed to fostering an inclusive and diverse work environment where every team member is respected, empowered, and encouraged to grow. To make this a reality, Tillster is dedicated to embracing diversity in all forms and is proudly an equal opportunity employer. We do not discriminate based on race, color, religion, national origin, gender identity, sexual orientation, age, family / parental status, marital status, veteran status, disability, or any other protected status.

Follow us on :

Tillster : https : / / www.tillster.com /

Tillster Careers : https : / / www.tillster.com / careers

LinkedIn : https : / / www.linkedin.com / company / tillster /

Pay and Benefits (PORTUGAL)

Tillster is proudly an Equal Opportunity Employer

No Visa Sponsorship

Principals only – no Agencies or calls please

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