Embedded Software Development Engineer II (C/C++), AWS EC2 VPC NX

Do you want to shape the future of virtualized (SDN) networking in the world’s

biggest public cloud?

The Amazon Elastic Compute Cloud (EC2) VPC Packet Pipeline team owns the packet

pipeline that runs right beneath all our customer's EC2 VPC instances, adding

features like firewalling (security groups), billing and monitoring as we touch

every single packet on every single host across our massive worldwide fleet. Our

vision is to combine the performance of bare metal networking while maintaining

all the benefits of the cloud, including delivering features not possible on

bare metal i.e. true Software Defined Networking (SDN).

We are seeking an Embedded Software Development Engineer II (C/C++) to join our

EC2 Nitro Fairness team, where you'll help ensure equitable resource allocation

in our multi-tenant cloud infrastructure while maintaining the single-tenant

experience customers expect. In this role, you'll develop sophisticated

algorithms and systems that intelligently manage shared compute, memory,

and network resources across diverse customer workloads. You'll design and

implement sophisticated fairness algorithms, real-time resource schedulers, and

performance isolation systems that operate at microsecond latencies across

millions of concurrent EC2 instances within the Nitro hypervisor. This position

requires deep understanding of virtualization technologies, distributed systems,

and performance optimization, as you'll be directly impacting how millions of

EC2 instances share underlying hardware while appearing completely isolated to

end users. You'll collaborate closely with hardware teams, hypervisor engineers,

and service owners to implement fairness policies that balance resource

utilization efficiency with strict performance guarantees.

Key job responsibilities

Technical Leadership & Development:

• Lead architecture decisions for fairness algorithms and resource allocation

systems within the Nitro hypervisor

• Mentor junior engineers on low-level C/Rust programming and embedded system

development practices

• Conduct design and code reviews for performance-critical fairness mechanisms

• Drive implementation of resource isolation and scheduling policies in embedded

Nitro environments

Performance Analysis & Optimization:

• Analyze customer workload patterns to identify fairness violations and noisy

neighbor scenarios

• Design and implement hardware-aware fairness algorithms leveraging CPU cache

locality, memory bandwidth, and network resources

• Collaborate with hardware engineering teams to optimize packet-pipeline

software and hardware offloads for equitable resource sharing

• Set and achieve fairness performance goals for new instance types and Nitro

hardware generations

Cross-Team Collaboration & Strategy:

• Partner with hardware/firmware teams on co-designing fairness enforcements

• Collaborate with other engineering vertical teams to ensure fairness features

integrate seamlessly across the stack

• Communicate fairness requirements and technical designs to senior management

and product teams

• Evaluate emerging technologies for ML-based instance types and their impact on

resource fairness

System Design & Implementation:

• Develop real-time fairness monitoring and enforcement systems operating at

microsecond latencies

• Implement dynamic resource allocation policies that adapt to changing workload

characteristics

• Design telemetry and observability systems to measure and validate fairness

across multi-tenant environments Basic

Qualifications

• - 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
• - Experience programming with at least one software programming language
• - Experience in embedded development in C/C++

Preferred Qualifications

• - 3+
• years of full software development life cycle, including coding standards, code
• reviews, source control management, build processes, testing, and operations
• experience
• - Bachelor's degree in computer science or equivalent
• - 2+ years of embedded firmware development experience
• Amazon is an equal opportunity employer and does not discriminate on the basis
• of protected veteran status, disability, or other legally protected status.
• Our inclusive culture empowers Amazonians to deliver the best results for our
• customers. If you have a disability and need a workplace accommodation or
• adjustment during the application and hiring process, including support for the
• interview or onboarding process, please visit
• https://amazon.jobs/content/en/how-we-hire/accommodations
• [https://amazon.jobs/content/en/how-we-hire/accommodations] for more
• information. If the country/region you’re applying in isn’t listed, please
• contact your Recruiting Partner.
• The base salary range for this position is listed below. Your Amazon package
• will include sign-on payments and restricted stock units (RSUs). Final
• compensation will be determined based on factors including experience,
• qualifications, and location. Amazon also offers comprehensive benefits
• including health insurance (medical, dental, vision, prescription, Basic Life &
• AD&D insurance and option for Supplemental life plans, EAP, Mental Health
• Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy
• Reimbursement coverage), 401(k) matching, paid time off, and parental leave.
• Learn more about our benefits at https://amazon.jobs/en/benefits
• [https://amazon.jobs/en/benefits].
• USA, WA, Seattle - 143,700.00 - 194,400.00 USD annually