Senior Machine Learning Engineer

BizAway; Barcelona; Híbrido; EUR 80.000 - 110.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Equity in the company

Hybrid work Barcelona

40h/week

Descripción de la vacante

BizAway is seeking a Senior Machine Learning Engineer to join the Data & Analytics Team in Barcelona. You will design, develop and deploy ML-powered data products that directly impact business value, collaborating with data analysts and engineers to build robust pipelines and production-ready systems.

You will own end-to-end ML lifecycle, help define ML best practices, and drive measurable value over time while contributing to a pragmatic, impact-driven AI culture at BizAway.

Formación

• 5–8 years of experience in ML or data science.
• Proficiency in Python and ML libraries.
• Experience deploying ML models in production.
• Strong understanding of core ML techniques.
• Experience with feature engineering and real-world datasets.
• Familiarity with APIs and model serving.
• Familiarity with Large Language Models and their use within end-to-end AI workflows.
• Strong problem-solving and ownership of projects.
• Master's degree (or PhD) in related field.
• English proficiency (minimum B2).

Responsabilidades

• Designing, developing, and deploying ML-powered data products.
• Collaborate with Data Analysts to translate needs and KPIs into modeling approaches, and with Data Engineers to ensure robust data pipelines.
• Own the full lifecycle of ML models from framing to deployment, monitoring, and improvement.
• Contribute to best practices for ML development, including evaluation, versioning, and performance monitoring.

Conocimientos

Python

ML libraries

Production ML

Feature engineering

APIs & inference

LLMs knowledge

Independent worker

Problem solving

Educación

Master’s degree in CS/Engineering/Math

PhD

Herramientas

Docker

Kubernetes

AWS

Model serving

Descripción del empleo

About BizAway

Here at BizAway, we Deliver the Future of Travel.

We are a solid international company with strong ambitions and great expertise. With a focus on sustainability, on a daily basis we support companies enabling them to improve their travel management through our constantly evolving services and solutions, always characterized by our tech attitude and smart and innovative processes.

We know that success comes from People and deserves to be recognized. Proactivity and Reliability, Kind collaboration, and communication are the core values of our Solution Culture.

If you like challenges and would love to be part of one of the fastest-growing B2B scale-ups, then BizAway is the company you have been looking for.

We are looking for

We are looking for a driven and enthusiastic Senior Machine Learning Engineer (m/w/d), who desires to contribute to the growth and success of our Data & Analytics Team.

Your role in BizAway

• As a Machine Learning Engineer, you will be responsible for designing, developing, and deploying ML-powered data products that enhance our value proposition and drive business impact.
• You will collaborate closely with Data Analysts to translate business needs and KPIs into modeling approaches, and with Data Engineers to ensure robust data pipelines, feature availability, and production-ready systems.
• You will own the full lifecycle of ML models, from problem framing and experimentation to deployment, monitoring, and continuous improvement, ensuring that models deliver measurable value over time.
• You will contribute to defining best practices for ML development, including model evaluation, versioning, and performance monitoring, while promoting a pragmatic and impact-driven approach to AI/ML within the company.

Your Basic 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)

Our offer

• Contract type: Permanent
• Working hours: Full-time – 40h/week, from Monday to Friday
• Hybrid (Barcelona): We love the focus of remote work, but we also value the magic of high-bandwidth, in-person collaboration. You can work from home most of the time, but we expect you to swing by our Barcelona office a couple of times a week to brainstorm, whiteboard UX flows, and grab a coffee with the team.
• Salary: Attractive compensation, including equity in the company
• Equity in the company (stock options plan)
• A seat on a scale-up with skyrocketing growth
• Development of your entrepreneurial spirit, having the chance to implement real-impact business decision
• Multicultural and international team
• Collaborative and smart environment to work and learn
• Free coffee to kick-start your day and free beers to celebrate together

BizAway avoids any discrimination based on age, gender, sexual orientation, health status, nationality, political opinions, and religious beliefs in all decisions affecting personnel selection.