Data Scientist

Klar

10d • Remote

About The Position

Klar is a Mexican fintech startup focused on democratizing financial services in Mexico, where a significant portion of the population is unbanked. Since its launch in 2019, Klar has served over 7 million users and offers a range of debit and credit products. The company recently partnered with Uber to launch their first global credit card in Mexico and was recognized as a "Great Place to Work" in 2023. Klar has a diverse team with a head office in Mexico City and remote tech hubs in Berlin and Argentina, fostering an inclusive environment that values different backgrounds and experiences. Their core values are Ownership, Excellence, Inclusion, Customer Obsession, and Klarity.

Requirements

• Master's degree or above in Data Science, Computer Science, Statistics, Mathematics, or a related field
• 5+ years of experience in Data Science, Machine Learning, or a related field
• Strong proficiency in Python and SQL
• Experience with Machine Learning libraries such as Scikit-Learn, XGBoost, TensorFlow, Keras, and Pytorch
• Experience owning models or analytical systems end to end, including performance monitoring, retraining, documentation, and stakeholder alignment
• Comfort using AI coding assistants, such as Claude Code and Codex, to improve productivity
• Proficiency in data analysis, visualization, and manipulation tools such as Pandas, Matplotlib, and Seaborn
• Strong problem-solving skills and the ability to think creatively
• Ability to communicate model tradeoffs, risk implications, and business impact to technical and non-technical stakeholders

Nice To Haves

• Experience with credit risk, fraud, underwriting, lending, financial services, or another regulated decisioning domain
• Experience with dbt (Data Build Tool) to transform SQL data
• Experience working with novel, transformer-based architectures

Responsibilities

• Design, build, and optimize Machine Learning models powering origination, behavioral scoring, limit management, and early-warning systems
• Leverage alternative data sources including transaction behavior, merchant data, and device intelligence to improve predictive performance
• Evaluate and implement the infrastructure required to deploy, monitor, and retrain models at scale
• Explore the applications of novel architectures (transformers, foundational models, etc.) for credit risk and related tasks
• Collaborate with cross-functional teams to identify opportunities for data-driven insights and solutions
• Work with other members of the Credit Risk team to build credit policies across the full customer lifecycle: origination, limit management, restructuring, and write-offs
• Communicate findings and insights to technical and non-technical stakeholders

Benefits

• Competitive salary based on performance and experience
• Chance of earning Klar stock options
• 26 days of paid vacation per year
• Computer device
• International work environment with amazing and highly skilled people
• A world class team that helps you evolve your skills in areas you're interested in
• Wellhub subscription to offer mental and physical health

What This Job Offers

• Job Type: Full-time
• Career Level: Senior