Company Description BizAway helps companies simplify business travel through a combination of proprietary technology and dedicated human expertise. The company provides end-to-end support, from routine bookings to unexpected travel disruptions, giving businesses greater control, flexibility, and confidence. More than just a platform, BizAway positions itself as a strategic travel partner that optimizes corporate travel experiences and costs.

Trusted by over 2,000 companies worldwide, BizAway offers a dynamic environment where technology and customer focus are central to its mission.

Role Description This is a full-time Senior Machine Learning Engineer role based in Barcelona, structured as a hybrid position with a mix of onsite and work-from-home flexibility.

The Senior Machine Learning

Engineer will design, develop, and deploy machine learning models that enhance BizAway’s travel platform, including recommendation systems, demand forecasting, and anomaly detection. Day-to-day activities include exploring data, prototyping algorithms, building scalable ML pipelines, and collaborating closely with product, engineering, and data teams to translate business needs into technical solutions. The role involves optimizing model performance, ensuring reliability in production, reviewing code, and mentoring other engineers in best practices for machine learning and software engineering.



The person in this position will also contribute to architectural decisions, documentation, and continuous improvement of the ML infrastructure.

Qualifications

- 5-8 years of experience in Machine Learning, Applied Data Science, or similar roles
- Strong proficiency in Python and common ML libraries (e.g. scikit-learn, TensorFlow, PyTorch)
- Experience developing and deploying ML models in production environments
- Solid understanding of core ML techniques (supervised and unsupervised learning)
- Experience with feature engineering and working with real-world datasets
- Familiarity with APIs and model serving (batch and/or real-time inference)
- Familiarity with Large Language Models and their use within end-to-end AI workflows
- Strong problem-solving skills and ability to translate business problems into ML solutions
- Ability to work independently and take ownership of projects end-to-end
- Master’s degree in Computer Science, Engineering, Mathematics, or a related field. A PhD in a relevant discipline is a plus.
- English proficiency (written and spoken, minimum B2 level)

We are also interested in

- Experience with experimentation frameworks (A/B testing) and impact measurement
- Experience with cloud platforms (AWS preferred) and containerization (Docker, Kubernetes)
- Knowledge of MLOps practices (model deployment, versioning, monitoring, retraining)

📌 Senior Machine Learning Engineer (Barcelona)
🏢 Bizaway
📍 Barcelona