Senior Gen-AI Engineer (Data & Platform) - Germany

Klar is a Mexican fintech startup focused on democratizing financial services in Mexico, offering debit and credit products to over 2 million users since 2019. The company values ownership, excellence, inclusion, customer obsession, and clarity.

Location: Remote (Mexico, Berlin, Argentina)

Responsibilities

• Build and maintain production-grade GEN-AI services in Python.
• Write clean, maintainable, and efficient code.
• Optimize applications for performance, reliability, and scalability.
• Design systems that process, enrich, and learn from real-time event streams.
• Work with data pipelines, message queues, retrieval systems, and streaming architectures.
• Build reliable context and retrieval layers for LLM-powered products.
• Improve LLM quality through context engineering, evaluation, observability, and feedback loops.
• Design systems with idempotency, retries, deduplication, backpressure, and failure recovery in mind.
• Collaborate closely with backend, data, product, and infrastructure teams.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 1+ years of experience with GEN-AI projects.
• 5+ years of experience with the Python programming language.
• Proven experience building data-intensive applications.
• Hands-on experience shipping production systems, not only prototypes or notebooks.
• Experience with event-driven systems, message queues, or streaming architectures.
• Experience with Kubernetes or cloud-native infrastructure.
• Strong understanding of observability, metrics, logging, alerts, and production debugging.
• Ability to reason about reliability topics such as idempotency, retries, duplicate events, backpressure, latency, and failure modes.
• Experience with distributed systems, including design patterns for scalability, fault tolerance, data consistency, and partitioning in large-scale production environments.
• Experience with data retrieval techniques.
• Experience with DSPy, GEPA, or other LLM optimization/evaluation techniques is a plus.

Benefits

• Competitive salary based on performance and experience.
• Chance of earning Klar stock options.
• 26 days of paid vacation per year.
• Computer devices.
• Wellhub subscription to offer mental and physical health.
• Sponsored coaching and therapy sessions via Modern Health.
• Training budget to upskill your learning.
• Health insurance & Pension scheme.
• BVG Corporate ticket.
• Berlin office if you prefer to work onsite.
• 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.

Additional Information

• Klar is a safe place for everyone!
• We trust our highly skilled and diverse team and we’re committed to creating a welcoming and inclusive environment for new talents to flourish.
• We value diversity and welcome all applications regardless of gender, nationality, ethnic and social origin, religion/belief, physical abilities, age, sexual orientation and identity.
• Should you require any accommodations through the recruitment process, please don’t hesitate to let us know how we can help!