AI Engineer

About the role

Delve Deeper is seeking a dedicated AI Engineer to build and maintain a multi‑agent AI system that automates performance media trading decisions. This is a production‑focused role where data quality and reliability directly impact client finances.

Key responsibilities

• Design, develop, and maintain AI agents, handling prompt design, tool wiring, context routing, failure handling and output validation.
• Integrate and normalize data from media platforms (Google Ads, Meta, DV360, Semrush, SerpAPI) and ensure schema compliance.
• Implement evaluation‑first development with defined success criteria, regression tests, and continuous benchmarking of model outputs.
• Build and operate ETL/ELT pipelines, ensuring data freshness and reliability for daily callouts and weekly optimisation reports.
• Develop and extend MCP connectors, manage rate limits, retries and production‑grade resilience.

Required profile

• 4+ years of experience in software, data engineering, ML or AI platform work with ownership of production systems.
• Hands‑on experience with LLM applications, agentic systems, and tool‑calling workflows.
• Proficiency with media platform APIs and integration layers such as MCP.
• Experience building robust, evaluation‑driven pipelines and human‑in‑the‑loop workflows.

Required skills

• Python
• SQL
• AWS, GCP or Azure
• Docker
• Airflow, Dagster, Prefect, dbt
• Slack API and webhook automation
• Vector databases and Retrieval‑Augmented Generation (RAG) patterns
• ETL/ELT pipeline design and data contract enforcement
• Media platform API integration (Google Ads, Meta, DV360, Semrush, SerpAPI)
• LLM evaluation tooling (token cost tracking, hallucination detection, model benchmarking)

What we offer

• Hybrid working model – three days in the Warsaw office (Tuesday‑Thursday).
• Competitive salary with growth opportunities.
• Private medical care (Medicover) and a Multisport card.
• Annual education budget of $250.
• Catered office lunch on Tuesdays, plus snacks and occasional breakfasts.