> Markdown version of [/jobs/ext/4418699-software-development-engineer-ii-ec2-blackfoot-peering-team](https://www.wearedevelopers.com/jobs/ext/4418699-software-development-engineer-ii-ec2-blackfoot-peering-team). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Development Engineer II, EC2 Blackfoot Peering Team - **Company:** Amazon.com, Inc. - **Location:** Seattle, WA, United States - **Experience:** Expert - **Salary:** $143,700 - $194,400 - **Contract:** Internship / Graduate position - **Skills:** Java (Programming Language), Amazon Web Services, Amazon Elastic Compute Cloud, Software Applications, Assembly Language, C Sharp (Programming Language), C++ (Programming Language), Software Code Optimization, Code Review, Computer Programming, Data Structures, Software Design Patterns, Embedded C, Perl (Programming Language), Embedded Software, Network Interface Controllers, Object-Oriented Software Development, Peering, Systems Development Life Cycle, Software Engineering, Rust (Programming Language), Private Cloud Environment, Multithreading, Information Technology, Build Process, Software Coding, Software Version Control, Programming Languages - **Published:** October 31, 2026 - **Apply:** https://www.juju.com/job/1_amazon6-10584067 ## About the Role 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 - 1+ years of software development engineer or related occupational experience - 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience - 1+ years of Object Oriented Design experience - Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field - Experience programming with at least one software programming language 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 Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. ## Description Amazon Elastic Compute Cloud (EC2) Networking is looking for a Software Development Engineer II to help build forwarding and encapsulation services that power large-scale networking within AWS. Your work will directly impact millions of customers who rely on EC2 every day. We are growing fast and looking for kernel and embedded C programmers who can deliver ultra-high performance. Our goal is to process many millions of packets per second on embedded CPU cores. This requires implementing highly optimized data structures and low-level tuning to our hardware. If you have strong experience in C or C++ and a passion for systems software engineering such as kernel or embedded development, this is a unique opportunity to join us in building the platform that will underpin all new EC2 Virtual Private Cloud features in the years to come. Dataplane engineers work on a lower level of the software stack that directly interacts with hardware. They require knowledge of programming languages optimized for lower-level work such as C, C++, Rust, and Assembly Language, along with the ability to read a hardware specification for a network card and optimize code to run on it. Key job responsibilities - Design and implement high-performance forwarding and encapsulation services in C and C++, optimizing data structures and tuning code for embedded CPU cores processing millions of packets per second. - Collaborate with hardware and software engineers across EC2 Networking to translate hardware specifications into performant dataplane code, ensuring scalability and reliability for AWS customers. - Participate in architecture decisions, design reviews, and code reviews, providing meaningful feedback to teammates and mentoring junior engineers on best practices for low-level systems development. Own features across the full development lifecycle - from scoping and design through implementation, testing, deployment, and operations - while identifying root causes of operational issues and driving permanent fixes. A day in the life You might start your morning investigating a performance regression on a new network card, profiling packet-processing paths to find the bottleneck. After a design review with your team, you could spend the afternoon writing and testing optimized C code for a new encapsulation feature. You will regularly sync with hardware engineers and partner teams across EC2 to align on upcoming card capabilities and feature requirements, balancing hands-on coding with collaborative planning. About the team Our team is dedicated to supporting new members. We have a broad mix of experience levels and Amazon tenures, and we are building an environment that celebrates knowledge sharing and mentorship. Senior engineers on the team enjoy mentoring through one-on-one sessions and thorough, kind code reviews. We assign projects based on what will help each engineer develop new skills and take on greater challenges over time. With access to Principal and Distinguished Engineers across EC2 and AWS, there are many opportunities to grow.