Junior AI Engineer (Financial Intelligence) Location: Donostia Join Our Team at Whitehole Whitehole is a Family Office focused on investment excellence. We actively manage (a) a diverse portfolio of equities, alternative assets, and hedging strategies, and (b) a select group of local companies where we hold significant stakes. Our mission is to uncover opportunities that deliver consistent, long-term value by investing in high-quality businesses led by exceptional teams, aligned with their stakeholders, and built on sustainable competitive advantages. We are looking for a Junior Artificial Intelligence Engineer with a passion for financial markets. This role blends technical expertise with financial insight, offering a unique chance to contribute to our cutting-edge technology research team.

About the role

You will own the data platform behind our investment decisions, and build the AI systems that run on top of it:

- Daily ingestion of market data from external providers,
- ETL/ELT pipelines,
- databases and storage,
- automated data quality checks,
- alerts and monitoring,
- diagnosis and resolution of incidents: failed jobs, incomplete series, provider changes,
- LLM-based systems: retrieval workflows, tool use, multi-step reasoning,
- and the validation mechanisms that make their output verifiable.

Core Technical Requirements

- Advanced Python and strong software engineering fundamentals.
- SQL and familiarity with databases (relational or NoSQL).
- Comfort with Linux and the command line, Git, and containers.
- Experience working with APIs and structured/unstructured data.
- Demonstrated experience building non-trivial projects
- Ability to plan development tasks with LLMs, delegate implementation to coding agents,



and design robust validation mechanisms.
- Cloud platforms (AWS preferred), workflow orchestration and exposure to time series or financial market data are a plus.

AI & Systems Understanding

- Hands-on experience using LLMs as part of small systems (e.g., simple retrieval workflows, tool use, or multi-step reasoning setups).
- Basic understanding of how data flows through an AI pipeline (input processing, transformation, validation, output evaluation).
- Interest in structured data modeling and explicit knowledge representation.

Mindset & Operating Style

- Ownership: this is a production system that real investment decisions depend on.
- Rigor with data: you notice when a number looks wrong, and you go and check.
- Strong problem-solving skills.
- Ability to operate autonomously in technically demanding environments.
- Comfort working on complex systems.

Eligibility Requirements

- University degree in Engineering, Computer Science, Telecommunications, Physics or Mathematics.
- Up to two years of professional experience.
- Internships and serious personal projects count.
- Based in Donostia, or willing to relocate.
- Fluency in English or Spanish.

What We Offer

- Competitive salary.
- Adaptable hours.
- Primarily on-site in Donostia, with some flexibility for remote work by agreement.
- We work with a small, high-performance team. You will own your part of the stack from early on, with direct exposure to the investment team and to how decisions are made.
- At Whitehole, you’ll join an investment journey that transcends financial returns— prioritizing stability, growth, and social impact.
- We’re not just managing assets; we’re shaping the future of a family-led industrial legacy.

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📌 Ai Engineer (Madrid)
🏢 Whitehole
📍 Madrid