Are you looking for a new challenge where advanced optimization meets real-world impact? We are looking for aSenior Optimization Scientistto join a cutting-edge technology project within theaviation and travel sector, working on complex, high-impact optimization problems. You will collaborate with cross-functional teams to translate business needs intomathematical models and robust optimization algorithms, contributing to innovative and production-ready solutions.Key Responsibilities:Optimization & Algorithms Design, develop, and implement classical and metaheuristic optimization algorithms (e.g. Genetic Algorithms, PSO, Simulated Annealing). Create custom optimization solutions to solve complex mathematical and engineering problems. Problem Modeling Translate complex business rules intomathematical constraints. Collaborate closely with technical and business stakeholders to design solutions for real operational challenges. Data Analysis & Preparation Collect, clean, and preprocess data from multiple sources. Identify patterns and insights to improve optimization model performance. Model Evaluation & Improvement Evaluate and fine-tune optimization algorithms to meet performance and scalability requirements. Perform sensitivity analysis to assess the impact of constraints and parameters. Collaboration & Communication Work with product and delivery teams to productionize optimization models. Communicate results, insights, and implications clearly to senior stakeholders.Requirements: Bachelor's or Master's degree inOperations Research, Applied Mathematics, Computer Science, or a related field. 3–4+ years of experiencein optimization or a related role. Strong experience withmetaheuristic optimization techniques(GA, PSO, SA, etc.). Proven ability to translate complex mathematical problems into actionable optimization solutions. Proficiency inPythonand data science libraries (Pandas, NumPy, SciPy, Scikit-learn). Hands-on experience with optimization libraries such asPuLP, Pyomo, and frameworks likeMealpy, DEAP, or Optuna. Solid understanding ofbusiness rule modeling and constraint programming. FluentEnglish(international environment).Nice to Have: Experience with optimization solvers such asGurobi, CPLEX, or Hexaly. Experience with data visualization tools and libraries. Knowledge ofETL processesand data cleansing. Familiarity with linear optimization techniques. Experience deploying models oncloud infrastructure (AWS preferred). Exposure to advanced mathematical modeling tools (Pyomo, OR-Tools).Sponsorshipunder the Highly Qualified Professional scheme ( PAC ) may beprovided .About You: Strong communication and presentation skills. Excellent problem-solving and critical-thinking abilities. Curious mindset with a passion for learning new technologies. Comfortable working in fast-paced, ambiguous environments. Availability to work in ahybrid model (3 days on-site per week in Barcelona) .Si te interesa la oportunidad y conocer todos los detalles, no dudes en aplicar al puesto para que podamos contactarte y hablar mejor sobre la posición, darte toda la información y resolver cualquier duda que te pueda surgir.Agap2 es una empresa que ofrece igualdad de oportunidades, por ello nos comprometemos a tratar todas las candidaturas por igual en función de sus capacidades, logros y experiencia. Animamos a cualquier persona a presentar su candidatura que será tratada con igualdad de oportunidades independientemente de su raza, nacionalidad, sexo, edad, discapacidad, orientación sexual, identidad de género o cualquier otra característica.