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About the Role

As a Senior AI Engineer, you will sit at the intersection of AI engineering, evaluation, and enablement. Your role is to ensure that AI systems at FREENOW are production-ready, measurable, and safe, while accelerating adoption across product and engineering teams. You will help transform AI from isolated pilots into reusable platforms, tools, and workflows used across the organization.

Responsibilities

• Designing, building, and maintaining production-grade AI systems using LLMs, agents, and retrieval-based architectures
• Owning and evolving the AI Evaluation Framework, including multi-turn evaluations, quality, safety, and hallucination metrics, and offline and production-data evaluation
• Partnering with Product, Engineering, Legal, and Security to ensure AI solutions are compliant, observable, and trustworthy
• Supporting and scaling internal AI products such as FreenowGPT and domain-specific AI assistants
• Enabling teams through shared tooling, patterns, and best practices (e.g. Gemini enablement, prompt & agent patterns)
• Building reusable AI components (RAG pipelines, agent orchestration, model access layers)
• Helping define standards for agent-ready architecture (MCP integrations, model abstraction, permissions)
• Monitoring AI system performance, cost, and reliability in production
• Acting as a technical reference point for AI across squads — from experimentation to rollout

Requirements

• Strong experience as an AI Engineer, ML Engineer, or Senior Software Engineer working with modern AI systems
• Experience building or operating LLM-based systems in production, not just prototypes
• Understanding of LLM failure modes (hallucinations, non-determinism, evaluation challenges)
• Ability to consistently balance speed, quality, and pragmatism
• Comfort designing evaluation frameworks and defining quality metrics for AI behavior
• Solid backend engineering fundamentals (APIs, services, data access)
• Enjoyment working across teams and explaining complex AI concepts clearly
• Care for reliability, safety, and real business impact
• Fluent in English

Skills

• Python
• LLM APIs (Gemini, OpenAI)
• Retrieval-Augmented Generation (RAG)
• Databricks
• Cloud Infrastructure
• APIs & Backend Services
• Evaluation tooling
• Observability & monitoring
• Internal developer tooling
• Agentic systems
• Multi-step workflows
• AI governance
• Risk management
• Compliance considerations (e.g. GDPR, EU AI Act)

Location

• Flexible
• Hamburg
• Berlin

Work Type

• Flexible working arrangements

Experience Level

• Senior

Benefits

• Flexible working arrangements
• LinkedIn Learning
• Sabbatical & special leave policies
• WeRoad partnership
• Birthday, 24th + 31st December off
• Short term EU work policy
• Mobility Credit
• Health insurance
• Employee assistance program

About the Company

• FREENOW empowers smarter mobility decisions, helping people move freely and cities thrive. As Europe’s leading Mobility Super App, we serve more than 54 million users across 16 markets and 170+ cities.
• Freenow by Lyft empowers smarter mobility decisions, helping people to move freely and cities to thrive. Through our multi-mobility app, we feature broad options for everyone across 9 European markets and over 180 cities. Millions of passengers can access services including taxis, private hire vehicles, carsharing, car rental, e-scooters, e-bikes, e-mopeds, and public transport within a single app.
• In July 2025 Freenow was acquired by Lyft, a global mobility platform, which connects riders and drivers for billions of rides across North America and Europe. Together, Freenow and Lyft are creating a more caring and connected world, with transportation for everyone. We are a global, diverse, highly motivated, and collaborative team that strives for excellence and likes to have fun.

Equal Opportunity

• Freenow is an equal opportunity employer and we consider qualified applicants regardless of race, religion, national origin, gender, gender identity, sexual orientation, disability or age.
• We want you to grow and evolve, bring your true self to work.