systems-software-engineering jobs in San Diego

Lead senior systems engineer on the EC2 NX Platforms team, owning the packet processing pipeline that runs beneath every EC2 instance across 9M+ hosts globally. Design and implement ultra-high-performance networking software handling encryption, firewalls, routing, billing, and monitoring — targeting millions of packets per second on a single CPU core through highly optimized C/C++ code and low-level hardware tuning.…See more Mentor junior engineers, lead architecture decisions, conduct design and code reviews, and communicate technical designs with users and senior management. Ship production code with immediate, measurable impact across the entire EC2 fleet powering AWS Lambda and all external workloads.

Design and implement ultra-high-performance packet processing software for AWS EC2's virtualized networking stack, handling encryption, firewalls, routing, and monitoring across 9M+ hosts. Own end-to-end development of features running on the EC2 Nitro System, from design through production deployment, optimizing for millions of packets per second on single CPU cores.…See more Build secure, scalable monitoring and diagnostics services, and design hardware/software validation platforms enabling efficient CI/CD. Mentor junior engineers on systems architecture and maintainable code while collaborating cross-functionally to define requirements and improve development processes.