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Staff AI Engineer Company: Bluefish AI Location: Berlin, Germany (remote flexibility within Germany, right-to-work verification required) Employment Type: Full-time Published: November 28, 2025 About Bluefish AI: Bluefish AI is building the leading AI marketing platform for Fortune 500 brands, recently securing $20M Series A funding led by NEA. The team comprises martech industry veterans with previous experience at Meta and Microsoft-owned platforms. They are disrupting the $300BN legacy martech industry. Key Responsibilities: - Lead end-to-end architecture for data platforms and pipelines: scraping, data extraction, transformation, storage - Direct model deployment, evaluation frameworks, and LLM integration at scale - Design safe rollout strategies and data-quality metrics for growth - Translate business requirements into actionable data products through RFCs and project sequencing - Establish testing, observability, and security standards across services - Mentor senior engineers and cultivate cross-functional collaboration with software, DevOps, and product teams - Prototype data/ML capabilities, evaluate feasibility and ROI with focus on costs Requirements: - 8+ years building and operating production data systems with architectural leadership experience - Extensive experience with training and deploying machine learning models, particularly within the NLP/LLM domain - Deep Python expertise and modern service architecture knowledge - Infrastructure as code, CI/CD, and cloud proficiency - SLOs, incident management, and observability fluency - Strong communication and demonstrated leadership abilities