Software Development Engineer Shape the future of cloud networking by building systems that power millions of EC2 instances worldwide. Join the Amazon Elastic Compute Cloud (EC2) Instance Networking team where your engineering contributions directly impact how businesses experience network performance, security, and reliability at massive scale. As a Software Development Engineer, you will work across diverse technical domains that define modern cloud networking infrastructure. You'll develop high-performance packet processing systems, build analytics platforms that process terabytes of networking telemetry, create testing infrastructure that validates changes across global deployments, and implement protection mechanisms that secure customer workloads. This role combines deep systems programming with distributed computing challenges, offering opportunities to work at the intersection of performance optimization, data analytics, and operational excellence. Working alongside Principal Engineers and cross-functional teams, you will contribute to technical solutions that operate continuously across AWS's global infrastructure while maintaining the reliability standards that millions of customers depend on. Key job responsibilities include: Build and optimize core networking infrastructure that enables secure, reliable, and high-performing connectivity across the EC2 platform. Contribute to engineering solutions spanning high-performance systems development through distributed analytics platforms that process network behavior at significant scale. Develop software across multiple technical domains including packet processing systems that handle millions of operations per second, analytics platforms that transform network telemetry into actionable insights, automated testing infrastructure that validates global deployments, and security mechanisms that protect customer workloads from network threats. Collaborate with hardware teams to optimize software performance across evolving networking platforms while ensuring compatibility and feature consistency. Partner with cross-functional teams to deliver networking capabilities that support new platform launches and emerging customer requirements. Participate in engineering practices that balance rapid innovation with operational excellence, including automated testing, performance benchmarking, and monitoring systems that provide visibility into network behavior across global infrastructure. Contribute to solving complex technical challenges in distributed systems, systems programming, and hardware-software integration. 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. Linux operating system and low-level C development knowledge. 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. Knowledge of TCP/IP, packet processing, or network security concepts. 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 for more information. Our compensation reflects the cost of labor across several US geographic markets. The base pay for this position ranges from $129,300/year in our lowest geographic market up to $223,600/year in our highest geographic market. Pay is based on a number of factors including market location and may vary depending on job-related knowledge, skills, and experience. Amazon is a total compensation company. Dependent on the position offered, equity, sign-on payments, and other forms of compensation may be provided as part of a total compensation package, in addition to a full range of medical, financial, and/or other benefits. This position will remain posted until filled. Applicants should apply via our internal or external career site.