Job title: Senior Data Scientist

Job type: Permanent

Salary: Up to €65,000

Role Location: Athens, Greece – Hybrid (3 days a week onsite)

The Company: Data-driven Travel Tech powering smarter pricing decisions!

Role and Responsibilities

We’re looking for a Senior Data Scientist to join a high-impact Data Science team that shapes the intelligence behind a leading Revenue Management System (RMS), a platform processing millions of tickets annually and helping travel operators optimise pricing, capacity, and demand forecasting across routes, seasons, and channels.

You’ll work at the intersection of machine learning, optimization, and commercial strategy, designing models that directly influence business performance and customer satisfaction.

What You’ll Be Doing

Dynamic Pricing & Forecasting

• Build predictive models to forecast demand, occupancy, and revenue across routes and seasons.

• Design price elasticity models to recommend optimal pricing based on demand, competition, and time-to-departure.

• Use time-series forecasting and probabilistic modelling to anticipate external influences (weather, holidays, events, etc.).

Optimization & Automation

• Develop algorithms that automatically adjust fares or allocations in real time.

• Apply reinforcement learning or optimization techniques to continuously improve pricing and inventory control.

Experimentation & Causal Inference

• Run A/B and multivariate tests to evaluate new pricing strategies and product features.

• Use causal inference to pinpoint what truly drives conversion and yield performance.

Data Infrastructure & Productization

• Work with ML and Data Engineers to deploy, monitor, and retrain models in production.

• Ensure scalable, reliable data pipelines and robust feature engineering processes.

Business Insight & Collaboration

• Partner with Product, Engineering, and Commercial teams to align model outcomes with business objectives.

• Translate data-driven insights into actionable pricing and capacity strategies.

Tech Stack & Tools

• Python, Pandas, NumPy, PyTorch/TensorFlow

• SQL, Spark

• Airflow, MLflow, or similar tools for workflow and model tracking

• AWS or GCP for scalable deployment and experimentation

Impact

As a Senior Data Scientist here, your models won’t sit in notebooks — they’ll drive real-world pricing and profitability decisions across millions of transactions. This is a rare opportunity to combine cutting-edge machine learning with tangible commercial outcomes in one of Europe’s most data-rich travel environments.

Apply to be considered! 

Accessibility Statement:

Read and apply for this role in the way that works for you by using our Recite Me assistive technology tool. Click the circle at the bottom right side of the screen and select your preferences.

We make an active choice to be inclusive towards everyone every day.? Please let us know if you require any accessibility adjustments through the application or interview process.

Our Commitment to Diversity, Equity, and Inclusion:

Signify’s mission is to empower every person, regardless of their background or circumstances, with an equitable chance to achieve the careers they deserve. Building a diverse future, one placement at a time? Check out our DE&I page here