Applied Scientist (Operations Research)

Location: Luxembourg, Barcelona, Berlin, or London

Company

hirify.global is a global technology leader focusing on e-commerce, cloud computing, and AI-driven logistics optimization.

What you will do

• Design and implement optimization models (MIP, heuristics, decomposition) to solve large-scale fulfillment problems.
• Build end-to-end research prototypes from initial problem formulation to scalable production implementation.
• Analyze complex tradeoffs between cost, speed, and capacity to provide actionable recommendations for leadership.
• Collaborate with engineering teams to integrate scientific solutions into production systems serving millions of orders.

Requirements

• PhD in Operations Research, Applied Mathematics, Computer Science, or a related field.
• Strong programming skills in Python, Java, or C++.
• Research experience in mathematical programming (LP, MIP), combinatorial optimization, or multi-objective control.
• Proven track record of publications in top-tier peer-reviewed conferences or journals.
• Experience with algorithms, data structures, and numerical optimization.
• Must be based in or able to work from Luxembourg, Barcelona, Berlin, or London

Nice to have

• Experience building optimization systems that run in production at scale.
• Proficiency with Unix/Linux environments.
• Professional software development experience.

Culture & Benefits

• Opportunity to develop models that influence billions of euros in annual operational spend.
• Collaborative environment working alongside Senior and Principal scientists and academic partners.
• Culture of applied research where success is measured by shipping systems rather than just publishing papers.
• Inclusive workplace that empowers employees to invent, simplify, and deliver results.