Senior Data Scientist - Hybrid Job - Barcelona

We Are Kadre LLC; Barcelona; Presencial; EUR 40.000 - 70.000; Jornada completa

Descripción de la vacante

We Are Kadre LLC is seeking a Data Scientist specializing in optimization to tackle complex challenges in the aviation and travel industry. In this role, you will design advanced algorithms and collaborate across teams to drive innovation with AI solutions. The ideal candidate will have a strong background in data science and optimization techniques, leveraging their expertise to generate impactful results.

Formación

• 4+ years of experience in data science, analytics, or optimization roles.
• Strong expertise in metaheuristic techniques (Genetic Algorithms, PSO, Simulated Annealing).
• Ability to translate complex requirements into practical optimization algorithms.

Responsabilidades

• Design and implement metaheuristic algorithms to solve business problems.
• Collect, clean, and analyze data to improve optimization performance.
• Collaborate with engineering teams to integrate models into production.

Conocimientos

metaheuristic techniques

data modeling

algorithm development

data analysis

Python

Educación

Bachelor's or Master's degree in Operations Research, Applied Mathematics, Computer Science

Herramientas

Pandas

NumPy

Scikit-learn

SciPy

PuLP

Pyomo

DEAP

Optuna

Mealpy

Descripción del empleo

About the Role
As a Data Scientist specializing in optimization, you’ll design and implement advanced metaheuristic algorithms to solve complex operational challenges in the aviation and travel industry. You'll translate business needs into mathematical models and collaborate across teams to bring optimization solutions into production.

Key Responsibilities

Optimization & Modelling: Design and implement custom metaheuristic algorithms (e.g., Genetic Algorithms) to solve real-world business problems. Translate complex requirements into mathematical models and constraints.

Data Preparation & Analysis: Collect, clean, and analyze data to inform model design and enhance optimization performance. Identify patterns and improve data usability for algorithm development.

Evaluation & Iteration: Test, tune, and evaluate algorithm performance. Conduct sensitivity analyses to assess impact of various parameters and constraints.

Collaboration & Delivery: Work closely with product and engineering teams to integrate optimization models into production environments. Communicate findings and model implications to stakeholders.

Mentorship & Knowledge Sharing: Support junior team members and contribute to a culture of continuous learning within the data science team.

Requirements

Bachelor’s or Master’s degree in Operations Research, Applied Mathematics, Computer Science, or related fields.

4+ years of experience in data science, analytics, or optimization roles.

Strong expertise in metaheuristic techniques (e.g., Genetic Algorithms, PSO, Simulated Annealing) and constraint modeling.

Proficiency in Python and libraries such as Pandas, NumPy, Scikit-learn, SciPy, as well as optimization tools like PuLP, Pyomo, DEAP, Optuna, or Mealpy.

Ability to translate complex mathematical and business problems into practical optimization algorithms.

Solid understanding of data modeling and constraint programming.

Nice to Have

Experience with linear optimization solvers (e.g., Gurobi, CPLEX, OR-Tools).

Familiarity with ETL processes, data cleansing, and visualization tools.

Exposure to deploying models using cloud-based infrastructure (AWS preferred).

Basic knowledge of R or other complementary programming languages.

Detalles

Kadre is working with a fast-growing Data & AI team within the aviation industry, supporting several leading airline and travel-related brands. Their mission is to accelerate the impact of Artificial Intelligence across multiple business units, driving innovation and generating value at scale through data-driven solutions.