Senior Software Engineer, Cloud Security & WAF

Amazon; Seattle, Northern (WA, KY); Hybrid; USD 144,000 - 194,000; Full time

Job summary

Amazon is seeking a Software Development Engineer (L5) for the Perimeter Protection (Anti-DDoS) team in Seattle, WA. You will design, implement, and operate scalable distributed systems protecting AWS customers from evolving threats.

The role emphasizes collaboration across teams, ownership of the full SDLC, on-call duty, and a culture of technical excellence. You will mentor engineers, drive architectural decisions, and deliver high-quality, testable code for global scale security services.

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.
• 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience.

Responsibilities

• Design, develop, and maintain scalable distributed systems that power AWS WAF ensuring high availability and performance at global scale
• Collaborate with cross-functional teams to gather customer requirements and translate them into technical designs and working software
• Own the full software development lifecycle from design through deployment and operational support, including on-call responsibilities
• Contribute to system architecture decisions and drive technical direction for new feature development
• Write clean, maintainable, and well-tested code while participating in code reviews to maintain high engineering standards
• Develop automation and tooling to improve operational efficiency, deployment velocity, and system reliability
• Analyze and resolve complex production issues, performing root cause analysis and implementing preventive measures
• Mentor junior engineers and contribute to a culture of technical excellence and continuous improvement

Skills

Software development experience

Design/Architecture

Programming languages

Full SDLC

Education

Bachelor's degree in computer science or equivalent

Job description

Amazon is seeking a Software Development Engineer (L5) for the Perimeter Protection (Anti-DDoS) team in Seattle, WA. You will design, implement, and operate scalable distributed systems protecting AWS customers from evolving threats.

The role emphasizes collaboration across teams, ownership of the full SDLC, on-call duty, and a culture of technical excellence. You will mentor engineers, drive architectural decisions, and deliver high-quality, testable code for global scale security services.