Systems Development Engineer

- 3+ years of non-internship professional software development experience
- 2+ years of designing or architecting (design patterns, reliability and scaling) of new and existing systems experience
- Experience programming with at least one modern language such as C++, C#, Java, Python, Golang, PowerShell, Ruby
- Knowledge of systems engineering fundamentals (networking, storage, operating systems)
- Experience in automating, deploying, and supporting large-scale infrastructure
- Experience building services using AWS products
- Experience with distributed systems at scale
- Experience with Linux/Unix
- Experience leveraging AI (Artificial Intelligence) agents for security review automation, spec-driven development practices, or adversarial red teaming
- Experience building or integrating AI/GenAI-powered solutions (e.g., LLM-based tools, agentic frameworks, automated diagnostics or remediation)
- Ability to work independently and solve problems using knowledge of an object-oriented programming language

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Amazon.com is seeking a Systems Development Engineer to join a Fulfillment Optimization team that helps promise, plan, and execute the delivery of millions of packages to customers worldwide — faster and cheaper each day — while providing an extraordinary customer experience from the website to doorstep delivery. Our systems handle millions of requests per second and make business recommendations that impact billions of dollars each year. With rapid expansion into new geographies, increasing complexity of the transportation network, and an expanding selection of products, the Fulfillment Optimization team builds solutions that scale and propel the business with best-in-class technology innovations.

We are looking for passionate, hard-working, and talented engineers who have experience supporting innovative, mission-critical, high-volume applications — and who are excited to apply AI and agentic automation to how large-scale systems are supported and operated. You will have an enormous opportunity to work across multiple systems: researching and identifying common issues, building AI-powered tooling that diagnoses and prevents them, and driving teams toward resolution to have a positive impact on the customer experience. Your solutions will impact our customers directly. This role requires you to hit the ground running; your ability to learn quickly and work on disparate and overlapping tasks will define your success.

The ideal candidate is detail-oriented, has superior verbal and written communication skills and strong organizational skills, can juggle multiple tasks at once, works independently, and maintains professionalism under pressure. You must be able to identify problems before they happen and implement solutions that detect and prevent outages. Your ability to accurately prioritize work, make sound technical trade-offs, improve the customer experience, and get the right things done will have a direct impact on Amazon's Supply Chain Optimization and fulfillment-network efficiency.

As a SysDE II on this team, you will work autonomously on difficult, team- and component-level problems, build resilient and well-tested solutions, and increasingly act as a force multiplier — enabling other builders through the tools, automation, and AI capabilities you deliver.

Key job responsibilities
- Dive deeply into technical details to diagnose, reproduce, and root-cause issues across Amazon technology products (services, tools, data solutions, etc.), and drive them to resolution or escalation.
- Design, build, and operate AI-powered and agentic support capabilities — diagnostic agents, automated root-cause analysis, anomaly detection, and self-healing/auto-remediation — that detect and prevent issues before they impact customers.
- Apply AI across the software development lifecycle (spec-driven and AI-assisted development, agentic workflows) to raise engineering velocity and quality.
- Automate repetitive operational tasks to increase efficiency and reduce manual toil, and build tooling that enables other engineers.
- Manage trouble tickets through to resolution or escalation using existing documentation, procedures, and tools, and improve those mechanisms over time.
- Use technology to monitor security vulnerabilities and eliminate risk; identify and mitigate reliability risks at the team and component level.
- Improve service resilience, performance, and operational metrics; define and apply operational-excellence practices for the team.
- Participate in a team on-call rotation, providing operational support for the services the team owns.
- Collaborate with partner teams, Technical Program Managers, and Product Managers to deliver on shared goals.
- Work in an Agile environment using the Scrum methodology.

About the team
The Fulfillment Optimization (FO) Support team plays a crucial role in Amazon's supply chain operations. We invent and deliver software solutions that facilitate Customer Promise Speed, Order Planning, and Fulfillment.

The FO Support team leverages data, process improvement, and innovative technologies — including AI and agentic automation — to provide comprehensive engineering-excellence services and solutions across FO's product portfolios. The team is responsible for FO services as front-line support and plays a central role in the organization's success.