Every day, millions of organizations — from businesses to public institutions — rely on Amazon Business for the procurement of the products they need to fulfil their mission.

The Amazon Business Search team sits at the heart of that experience. We’re redefining how over 8 million B2B customers search, navigate, and discover products.

As a Software Engineer in this team, you will design, build and maintain innovative Search features such as intelligent ranking algorithms, autocomplete, filters, and many more. You will work closely with Applied Scientists to bring LLM and agentic capabilities into Search such as a B2B-specific conversational experience.

This is a unique opportunity to push the boundaries of search technology, improve relevance for millions of customers worldwide, and help shape the future of B2B commerce.


Key job responsibilities
As a Software Development Engineer, you will:

- Own the full software development lifecycle, including design, implementation, testing, experimentation, and maintenance, ensuring high reliability and measurable customer impact.
- Analyze success of new Search features through data-driven analysis of A/B experiments
- Build and optimize data and model-serving pipelines to support high-throughput, low-latency applications across distributed systems.
- Collaborate across Product, Software, and Science teams to shape best customer experience and deliver complex projects at scale.
- Participate in the team's and organization's activities such organization plannings, design reviews, knowledge sharing, conferences, etc.
- Mentor and guide junior peers on Software and AI technologies and best practices.



About the team
We are a two-pizza team of software engineers based in Madrid, building the next generation of Amazon Business Search. Our team is international and inclusive, bringing together diverse perspectives to solve complex technical challenges.
We value fast learners, problem solvers, and innovators who take ownership from concept to delivery. We work backwards from the customer, combining strong business awareness with deep technical expertise. Our culture is agile and experimentation-driven — we move quickly, measure impact, and continuously improve to deliver world-class search experiences for millions of B2B customers.
We regularly spend quality time outside of work to build interpersonal relationships such as dinners and events. We work hard, have fun, and make history!