Software Development Engineer, AI Runtime

We are looking for a passionate and experienced Software Development Engineer to help us build and scale the next generation of AI runtime infrastructure for Alexa. You will design and implement Tier-1 distributed systems that orchestrate expert agent executions manage LLM inference pipelines and ensure reliable low-latency delivery across Alexa-enabled devices globally.

This is a high-impact role where your work directly shapes how millions of customers experience Alexa every day.

Key job responsibilities
- Design build and operate large-scale distributed services that power Alexa Expert executions

- Develop and optimize LLM orchestration pipelines including model serving prompt routing and inference optimization

- Build multi-agent coordination systems that route requests to the right expert agents with minimal latency

- Own the operational excellence of Tier-1 services ensuring 99.99% availability at scale

- Collaborate with applied scientists and ML engineers to integrate new AI capabilities into production

- Drive architectural decisions that balance performance reliability and cost efficiency

- Mentor teammates and raise the engineering bar through code reviews design reviews and technical leadership

About the team
The AI Runtime team is the backbone of Alexa. We own the infrastructure that powers Expert executions the multi-agent systems that bring Alexas intelligent capabilities to life for hundreds of millions of customers worldwide. Our services orchestrate LLM inference coordinate expert agents and deliver responses at massive scale with low latency. When a customer interacts with Alexa and it feels magical our platform made it happen.

- 3 years of non-internship professional software development experience
- 2 years of non-internship design or architecture (design patterns reliability and scaling) of new and existing systems experience
- Bachelors degree or foreign equivalent in Computer Science Engineering Mathematics or a related field
- Experience programming with at least one software programming language

- 3 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Bachelors degree in computer science or equivalent
- System design with AI components and able to evaluate latency cost reliability and accuracy.

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