Software Development Engineer II, AWS Throttling

AWS is the backbone for the world's software. In order to successfully support this mission we build large scale services that support trillions of transactions. In order to ensure that these services stay up and continue to work for everyone that depend on them we need to protect them from overload. This is where AWS Throttling comes in.

The AWS Throttling Service is a managed service for distributed rate limiting that protects AWS services from unexpected traffic spikes. It gives service owners near infinite throttle scaling, a more efficient throttling client, and better safety for throttle rule configuration and updates. Customers of AWS Throttling have better price-performance, more accuracy, and increased flexibility in tuning more complex throttling decisions. The AWS Throttling platform supports throttle rule analysis and traffic insights visible in the console, along with partner integrations such as Service Quotas in visibility mode.

As an engineer on our team you will become an expert in what we have already built and help us improve what we have by implementing new features and improving the ones that already exist.

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AWS Infrastructure Services owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems, with thousands of variables impacting the supply chain — and we’re looking for talented people who want to help.

You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.

Key job responsibilities

• Build production-grade systems that handle millions of requests with low latency and high availability. Design solutions that scale to meet growing customer demands.
• Work across our technology stack using Java, TypeScript, and Rust. Demonstrate willingness to learn new languages as needed.
• Own operational metrics and system health. Identify cost reduction opportunities through efficient resource utilization and architectural improvements. Participate in on-call rotations.
• Mentor junior engineers through code reviews, design discussions, and career development. Share knowledge and help team members build reliable, scalable systems.

About the team
The Throttling Team builds and maintains critical infrastructure that protects AWS services from overload while ensuring fair resource allocation across millions of customers. We design high-performance, distributed systems that process billions of requests daily, making real-time decisions about request prioritization and rate limiting. Our work directly impacts customer experience and AWS operational efficiency. The team operates at massive scale, requiring innovative solutions to balance system protection, cost optimization, and customer satisfaction. We work with leading technologies and collaborate across AWS to ensure reliable, scalable service delivery.