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Applied AI Engineer - Agent Intelligence & Retrieval

Littlebird

WorldwideRemote7mo ago
Employment
Full-time

About the role

Role Overview


The Role


    • Solve the "Broad Query" Problem: How do you make retrieval work just as well for "what did I do last week?" as it does for a specific, targeted question? This involves query analysis, decomposition, and potentially multiple retrieval strategies.
    • Optimize the Ranking Stack: You'll experiment with and productionize new re-ranking models to crush our latency bottlenecks. You'll fine-tune our ranking strategy to better blend sparse and dense retrieval signals.
    • Develop Intelligent Pruning: How do you shrink the context passed to the LLM by 80% without losing the critical 1% of information that leads to the right answer? You'll design and test sophisticated context pruning and summarization techniques.
    • Context Engineering: You'll become an expert in "prompt-level" performance, figuring out the optimal way to structure and present context to the LLM to minimize hallucinations and improve reasoning.
    • Debugging Complex Agentic Flows: You'll be a detective, tracing the root cause of agent failures through layers of tool calls, context retrieval, and LLM responses to understand where things went wrong and how to fix them.
  • Strong OOP programming skills and prior experience writing production software in python, Typescript, or C++
  • A deep, intuitive understanding of information retrieval and modern RAG pipelines. You've likely built a few from scratch.
  • Hands-on experience with vector databases, hybrid search, and re-ranking models.
  • An experimental, data-driven mindset. You're comfortable running A/B tests, analyzing metrics, and iterating quickly to improve performance.
  • A pragmatic approach. You're focused on shipping tangible improvements to the AI's quality, not just chasing SOTA benchmarks.

Benefits

  • Remote-friendly work environment
  • Collaborative team culture
  • Opportunity to shape infrastructure decisions
  • Competitive compensation packages including stock and health benefits, paid time off, and parental leave. 401k options for all US-based employees.
  • Flexible working hours across multiple time zones
  • We love to hear when birds chirp!

Perks & benefits

  • 401k
  • Async
  • Paid Time Off

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