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Machine Learning Engineer, Detection (SF/NY)

Doppel· Engineering
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Hybrid (San Francisco, New York)$150k - $400kFull-timePosted 8mo ago

About the role

Machine Learning Engineer focused on building and scaling detection models and systems for identifying malicious or infringing content across diverse data sources, with opportunities to work on NLP, embeddings, similarity search, and anomaly detection within Doppel’s AI-native social engineering defense platform.

Responsibilities

  • Design, train, and deploy models for both batch and real-time inference that identify malicious or infringing content across diverse data sources.
  • Partner closely with the Detection and Infrastructure teams to ensure our ML systems scale with the volume of web data we ingest
  • Work on problems that range from NLP and embeddings to similarity search, classification, and anomaly detection
  • Collaborate directly with customers and internal stakeholders to translate real-world threats into production ML systems

Qualifications

  • Have experience building and deploying ML systems in production environments
  • Are comfortable working with large-scale datasets and distributed data processing frameworks
  • Understand the trade-offs between research-quality models and production-ready systems
  • Are excited about solving real-world problems where the adversary is constantly evolving

Skills

Required:Model design and deployment (production ML)Large-scale data processing
Nice to have:NLP and embeddingsAnomaly detection / similarity search

Benefits

  • 🚀 A mission-driven culture with low ego, high ownership, deep customer obsession, and exceptional talent density
  • 🍽️ Free lunch and dinner in the office
  • 🌴 Flexible PTO
  • ✈️ Quarterly team offsites
Last updated Oct 1, 2026. Interested? Apply on the company site.
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About Doppel

The world's first platform for Social Engineering Defense.

By pairing cutting-edge AI with expert analysis, we outpace threats like phishing, impersonation, and disinformation—delivering comprehensive coverage, speed, and precision.

Social Engineering DefenseAI securityThreat intelligenceBrand protectionExecutive protectionSocial engineering

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