[Hiring] Senior Python AI Engineer @Seeking Alpha

Role Description

We are developing Ask Seeking Alpha — a high-load financial analysis system based on Large Language Models. The architecture is built on complex multi-agent orchestration using LangGraph, FastAPI, and Elasticsearch.

We are looking for a Senior Backend Engineer specialized in Generative AI to:

• Design agent workflows
• Optimize interactions with models (OpenAI, AWS Bedrock)
• Ensure the reliability of non-deterministic systems in production

Tech Stack:

• Python (Asyncio)
• FastAPI
• LangChain
• LangGraph
• Pydantic
• Elasticsearch
• AWS Bedrock / OpenAI API
• LangSmith

Qualifications

• Strong proficiency in modern Python
• Deep understanding of asynchronous programming (asyncio) patterns
• Experience with FastAPI and Pydantic (v2)
• Production experience with LangChain
• Hands-on experience or deep conceptual understanding of LangGraph (or similar state-machine based agent frameworks)
• Experience with Docker, microservices architecture, and CI/CD pipelines

Requirements

• Strategies for handling LLM hallucinations and ensuring reliable outputs (e.g., self-correction loops, specific prompting techniques like CoT/ReAct)
• Experience forcing LLMs to adhere to strict schemas (Pydantic/JSON mode) for reliable downstream processing
• Advanced strategies for managing limited context windows (summarization chains, sliding windows, selective context injection) beyond simple truncation
• Understanding the trade-offs between model size, latency, and cost (e.g., when to route to GPT-4 vs. a smaller/faster model)

Nice to Have

• Experience with Elasticsearch (DSL queries, analyzers)
• Knowledge of vector databases and embedding models
• Background in FinTech or familiarity with financial data structures