Senior AI Engineer, AI Platform

1 hour, 6 minutes ago
Full-time
Senior
Software Development
Affinity

Affinity

Affinity's powerful relationship intelligence enables teams to use their network to find and close more deals. Reduce data entry and become more data driven. Reimagining relationship intelligence. Using patented technology, we help businesses leverage ...

IT Services
251-1K
Founded 2014
$120M raised

Description

  • Architect, prototype, and deploy RAG pipelines using vector search, hybrid retrieval, reranking, and contextual compression techniques.
  • Design and orchestrate multi-agent LLM systems using community frameworks and custom orchestration layers.
  • Work on information extraction, information storage, and information retrieval problems across structured and unstructured data.
  • Collaborate with product, infrastructure, data engineering, machine learning, and software engineering partners to build robust, high-scale systems.
  • Develop AI systems that uncover actionable insights from business interaction data.
  • Support the data processing and ML operations systems that power Affinity’s AI features.
  • Work within a fast-moving environment to cut through ambiguity and deliver customer value.
  • Contribute to LLM search capabilities such as query understanding, augmentation, text-to-SQL, and entity extraction.
  • Participate in evaluation and improvement of AI systems using offline and online assessment approaches.

Requirements

  • 5+ years of experience in software engineering and/or machine learning, including applying machine learning in production.
  • Hands-on experience with LLM applications in production, including prompt engineering and online/offline evaluation frameworks.
  • Experience with LLM-assisted search, such as query understanding and augmentation, text-to-SQL, and entity extraction.
  • Experience with vector databases or graph databases.
  • Experience with document chunking, embedding models, and context window optimization.
  • Familiarity with metadata-based retrieval and re-ranking strategies.
  • Hands-on experience with model evaluation metrics such as perplexity, hallucination rate, and factual consistency.
  • Familiarity with data security, versioning, and MLOps principles.
  • Experience with enterprise AI applications that have strict compliance, audit, or legal requirements, preferred.
  • Experience with dataset engineering, including data curation, augmentation, and synthesis, preferred.
  • Experience with multi-modal search, preferred.
  • Experience with graph-based recommendation systems such as graph neural networks, preferred.
  • Experience building AI applications powered by agent-based systems, preferred.
  • Experience with packaging, CI/CD, and pipeline automation, preferred.
  • Familiarity with Python-based ML pipelines, OCR, and embedding model serving.

Benefits

  • Base salary range of $160,000 to $235,000 USD.
  • Employer-covered medical, dental, and vision insurance premiums.
  • Flexible personal and sick days.
  • 401(k) retirement plan.
  • Annual education budget and comprehensive learning and development program.
  • Monthly reimbursement for home internet, meals, and wellness memberships or equipment.
  • Hybrid work model for San Francisco and New York employees, with 2–3 in-office days per week.
  • US remote work option in eligible states.

Interested in this position?

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