AI Engineer

Remote, Madrid·Added 2 days ago

MediaRadar

6 open roles

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Overview

Job details

Fully remote
Per the ad.

Requirements

Have the right to work in Spain
MediaRadar doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
University degree
“Strong degree in Computer Science or Telecommunications (Teleco).” — per the ad.

Requirements

What we're looking for

Core: Expert Python (Non-negotiable), PostgreSQL + pgvector, SQLAlchemy.

AI/LLM: Azure OpenAI, LangChain, Langfuse, Multi-agent orchestration.

Productivity: ChatGPT/Copilot for development, Docker, async I/O.

Academic Foundation: Strong degree in Computer Science or Telecommunications (Teleco).
Software Rigor: You think like a developer. Clean code, architecture, and scalability are your default settings.
The "Hacker" Spirit: Active participation in Hackathons or a portfolio of ambitious side projects. We want to see that you build things because you love solving problems.
Extreme Independence: Proven ability to thrive in international roles without constant lead structure or heavy supervision.
Technical Mastery:
* Expert Python (typing, async, performance).
Deep SQL & Vector DB knowledge (pg_trgm, HNSW).
Experience building and deploying RAG pipelines and LLM agents.

Nice to have

Vision-based ML: Using reasoning to correctly attribute visual ad creatives.
Context Optimization: Utilizing window context detection to improve system reasoning.
Multi-Agent Scaling: Chaining specialized models to automate complex data workflows.

The role

We are building a best-in-class AI team focused on delivering advanced capabilities that empower our data organization. This is not a role for theoretical research; it is for an AI Engineer with a strong Software Engineering backbone.

You will be expected to be highly independent, taking ownership of problems from end-to-end. We value "Modern Productivity"-you should leverage LLMs and AI coding assistants to bypass boilerplate and ship code faster. In our view, manual line-by-line coding is outdated; we want engineers who use every tool at their disposal to increase output without sacrificing reasoning or quality.

What you'll do

Independent System Building: Own the design and implementation of scalable ML solutions, moving rapidly from problem statement to working code.
Classification & Attribution: Build and fine-tune systems for complex data, such as identifying ad creatives or global brand deduplication by cross-referencing government registries.
Advanced Reasoning: Implement "Chain of Thought" prompting and multi-agent workflows (e.g., classification agents vs. reasoning agents) to solve complex attribution tasks.
Data Engineering Rigor: Optimize vectorization, manage migrations via Alembic, and ensure high-throughput ingestion with minimal supervision.
Operational Excellence: Implement guardrails and observability (Langfuse) to ensure that high-velocity output remains explainable and robust.

How you'll work

Location: Madrid, Spain (Remote - with regular in-person collaboration at a local WeWork alongside our Madrid tech team)

About MediaRadar

MediaRadar is a media intelligence and advertising technology company that provides real-time data, analytics, and insights on digital advertising. The company tracks millions of ads across various platforms, helping brands, agencies, and publishers understand the competitive landscape and optimize their media investments. Founded in 2014 and headquartered in New York, MediaRadar has grown into a significant player in the ad-tech space, serving a wide range of clients with its comprehensive ad tracking and analysis platform.

MediaRadar has established a presence in Spain, with a growing team of data professionals. The company's work culture is data-driven and collaborative, offering an environment where international hires can contribute to building products that shape the digital advertising industry. For international professionals, MediaRadar offers the opportunity to work with a global, English-speaking team and to apply their skills in a fast-paced, innovative sector.

Founded: 2014
Employees: 100–500
Headquarters: New York, USA
In Spain: Madrid
Website: mediaradar.com

Good to know if you are moving

MediaRadar's Spain office is located in Madrid, offering a hub for data and engineering roles.
The company operates in English, making it accessible for international professionals without requiring Spanish fluency.
MediaRadar provides a comprehensive onboarding and mentorship program for new hires.
The company offers competitive compensation and benefits packages, including health insurance and flexible remote work options.
The role in Spain focuses on data governance, a field with high demand for skilled professionals.

In their own words

About the company & team

MediaRadar, now including the data and capabilities of Vivvix, powers the mission-critical marketing and sales decisions that drive competitive advantage. Our competitive advertising intelligence platform enables clients to achieve peak performance with always-on data and insights that span the media, creative, and business strategies of five million brands across 30+ media channels. By bringing the advertising past, present, and future into focus, our clients rapidly act on the competitive moves and emerging advertising trends impacting their business.

Additional information

At MediaRadar, we are committed to creating an inclusive and accessible workplace where everyone can thrive. We believe that diversity of backgrounds, perspectives, and experiences makes us stronger and more innovative. We are proud to be an Equal Opportunity Employer and make employment decisions without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, or any other legally protected status.

In accordance with the EEO-1 reporting requirements, we collect demographic data as part of our efforts to ensure fair and equitable hiring practices across all levels of our organization.

We are committed to ensuring our recruitment process is accessible to all applicants. If you need a reasonable accommodation during the application or interview process, please contact us at careers@mediaradar.com.

We're excited to meet people who share our values and want to build the future with us!

All open roles at MediaRadar