AI Engineer

EU BASED ONLY!
WHO WE ARE

Delve Deeper is a performance media agency focused on the charity and nonprofit sector, partnering with organizations that invest $5M–$20M annually in media. We help mission-driven teams maximize impact through advanced digital strategies that drive measurable, scalable results.

Our expertise includes advanced analytics, intent-based audience segmentation, full-service media management, and personalized creative—delivering a fully integrated, data-driven approach to growth.

More than a vendor, we serve as a strategic partner, helping organizations solve complex media challenges and turn them into clear outcomes. With decades of leadership experience, Delve Deeper is a trusted voice in the charity space.

We’ve also been named Built In Colorado’s “Best Places to Work” for five consecutive years, reflecting a culture that values performance, growth, and people. As a privately owned company, we move quickly, support our team holistically, and create meaningful opportunities for advancement.
ROLE OVERVIEW

Dedicated individual contributor focused entirely on building and maintaining a multi-agent AI system that automates performance media trading decisions. This is not a generalist developer role. You will work within a complex multi-agent codebase, operate under strict evaluation-first protocols, and develop deep enough understanding of the business domain to make sound implementation decisions without constant oversight. Data errors have direct financial consequences for clients — engineering quality is non-negotiable.
CORE RESPONSIBILITIES
- Agent Development:Build, iterate, and maintain AI agents within the architecture and boundaries defined by the Lead AI Engineer. Own your agents end-to-end: prompt design, tool wiring, context routing, failure handling, and output validation.

- Data Integration:Integrate data components across media platforms — ingesting, normalizing to schema, and routing to the correct agent context. Work within defined data contracts and surface schema drift before it becomes a runtime failure.

- Evaluation-First Development:No feature enters development without defined success criteria and regression tests. Run prompt benchmarking, track output quality across model versions, and flag hallucination patterns or quality regressions proactively. Evaluation is not a post-build step.

- Pipeline & ETL Work:Build and maintain ETL/ELT pipelines supporting daily automated callouts and weekly optimisation reporting. Own data freshness and pipeline reliability for the agents you are responsible for.

- MCP Connector Work:Operate within and extend the MCP connector library for external platform APIs. Handle rate limits, retries, and failure modes — connectors must be resilient in production, not just in testing.

- Human-in-the-Loop Workflows:Build and maintain Slack-based approval flows — agent callouts, feedback capture, exception alerts, and operational notifications. These are the primary interface between the AI system and human decision-makers.

- Production Reliability:Own the reliability of your agents in production. Monitor output quality, respond to incidents, drive root-cause fixes rather than surface patches. Alert the Lead AI Engineer early on scope or complexity that affects delivery.

CANDIDATE PROFILE

- 4+ years across software, data engineering, ML, or AI platform work with direct ownership of production systems

- Experience with media platform APIs (Google Ads, Meta, DV360, Semrush, SerpAPI)

- Strong Python and SQL — production-grade, not just analytical scripts

- MCP or equivalent integration layer experience

- Hands-on experience building or operating LLM applications, agentic systems, or tool-calling workflows

- Workflow orchestration tooling: Airflow, Dagster, Prefect, dbt

- ETL/ELT pipeline design and data reliability in production — schema management, contract enforcement, freshness monitoring

- Cloud infrastructure: AWS, GCP, or Azure; cont