Senior Data Engineer / AI Engineer (Agentic AI Platform Financial Data) - Philadelphia, PA - onsite interview - C2C

Title - Senior Data Engineer / AI Engineer (Agentic AI Platform Financial Data) Location: On-site 2-3 days hybrid URGENT
Experience: 4 8+ years
Type: Contracting

We are building a platform that converts unstructured financial data ( emails, corporate actions, index announcements ) into high-quality, structured datasets used by financial institutions.
This is not a typical LLM wrapper role.
You will work on systems that:

• Extract data from noisy, inconsistent sources
• Validate and reconcile outputs across multiple inputs
• Ensure correctness, traceability, and auditability

The challenge is not just applying LLMs it s making them reliable in production for financial workflows.
What You ll Work On

• Designing pipelines that process high-volume financial documents (batch + near real-time)
• Building LLM-powered extraction workflows ( classification, parsing, summarization )
• Implementing validation layers (rule-based + model-based) to reduce hallucinations
• Developing retrieval systems using embeddings and vector search
• Architecting end-to-end systems: ingestion processing storage serving
• Ensuring data quality, observability, and fault tolerance
• Collaborating with product to turn messy data into usable financial intelligence

Core Requirements

• Strong Python and backend/data engineering experience
• Experience building production data pipelines (ETL, streaming, or async systems)
• Solid understanding of distributed systems and failure modes
• Experience working with LLM-based systems in production:
  • Prompt design
  • Output validation
  • Retry/fallback strategies
  • Evaluation and monitoring
• Experience with data storage systems (SQL + NoSQL)
• Familiarity with cloud infrastructure (AWS or similar)

Preferred Experience

• Experience with RAG / vector search systems
• Background in financial data or capital markets
• Experience with streaming systems (Kafka, etc.)
• Experience building multi-step or agent-style workflows

What Makes This Role Interesting

• Work on high-accuracy AI systems where correctness matters
• Solve real problems around:
  • LLM reliability and hallucination mitigation
  • Data consistency across conflicting sources
  • Real-time vs correctness tradeoffs
• Build systems used in financial decision-making workflows
• High ownership over core architecture in an early-stage environment

Nice to Know (but not required)

• Experience with orchestration tools ( Airflow, etc.)
• Exposure to evaluation frameworks for LLMs
• Experience working with large-scale document processing

Tech Stack (Representative, not exhaustive)

• Python, APIs, async processing
• LLM APIs + embeddings
• SQL / NoSQL databases
• Cloud infrastructure (AWS)
• Data pipelines and streaming systems
• Vector Databases