SDE II, EC2 Core Platform — Scale & Reliability

Amazon Inc.; Seattle (WA); On-site; USD 144,000 - 194,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Parental leave

Sign-on payments / RSUs

Job summary

Amazon Development Center U.S., Inc. is seeking a Software Development Engineer II for the EC2 Core Platform in Seattle, WA.

You will design, build, and operate large-scale, high-availability systems serving millions of customers, owning components end-to-end from design through deployment and operations. You will mentor junior engineers, drive improvements in CI/CD, testing, observability, and security, and collaborate across teams to clarify requirements and manage dependencies in a

Qualifications

• 3+ years of non‑internship professional software development experience.
• 2+ years of non‑internship design or architecture of new and existing systems.
• 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.
• 1+ years of Object Oriented Design experience.
• Experience programming with at least one software programming language.

Responsibilities

• Design, develop, test, deploy, and maintain scalable, secure, and reliable software systems and services.
• Own the delivery of medium-to-large features or components, breaking ambiguous problems into well-defined tasks and driving them to completion.
• Write high-quality, maintainable, well-tested code and clear technical documentation and design docs.
• Participate in and contribute to design and code reviews, improving quality and consistency across the team.
• Operate what you build: monitor service health, respond to operational events, participate in on-call, and drive down operational load through automation and root‑cause fixes.
• Collaborate with product managers, other engineers, and partner teams to clarify requirements, define technical approaches, and manage cross-team dependencies.
• Improve engineering practices — CI/CD, testing, observability, performance, and security — and reduce technical debt.
• Mentor junior engineers (SDE I / interns) and contribute to a strong, inclusive team culture.

Skills

Software development

Architecture design

Programming languages (C#, C++, Java,/

OO design

Education

Bachelor's degree in Computer Science, Engineering, Mathematics, or related field

Job description

Amazon Development Center U.S., Inc. is seeking a Software Development Engineer II for the EC2 Core Platform in Seattle, WA.

You will design, build, and operate large-scale, high-availability systems serving millions of customers, owning components end-to-end from design through deployment and operations. You will mentor junior engineers, drive improvements in CI/CD, testing, observability, and security, and collaborate across teams to clarify requirements and manage dependencies in a