SDEII - Threat Intel Systems, ACTI Engineering

Software Development Engineer In Amazon Cyber Threat Intelligence

The Amazon Cyber Threat Intelligence (ACTI) organization is responsible for investigating, analyzing, and defending against sophisticated cyber threats targeting Amazon's global businesses and customers. ACTI combines technical expertise, strategic analysis, and advanced tooling to identify emerging threats, track adversary activities, and provide actionable intelligence across Amazon's security ecosystem. As a Software Development Engineer within ACTI Engineering, you will architect and contribute to the development of mission-critical distributed systems that power Amazon's threat intelligence capabilities.

You will make key technical decisions that shape our platform's architecture, designing scalable solutions that process, analyze, and correlate vast amounts of security data across Amazon's global infrastructure. Your technical leadership will directly influence ACTI's ability to detect, analyze, and respond to emerging security threats s position requires that the candidate selected be a US Citizen.

Key job responsibilities:

• Own and architect critical components of ACTI's threat intelligence platforms, making key technical decisions that impact system scalability, performance, and reliability
• Design and implement distributed systems that process petabytes of security data
• Lead the development of service-oriented architectures that integrate complex threat intelligence workflows
• Drive technical decisions around data modeling, storage solutions, and processing frameworks
• Own the full software development lifecycle, from design through deployment and operational excellence
• Mentor junior engineers on system design, coding practices, and architectural patterns
• Partner with threat intelligence analysts to translate complex requirements into scalable technical solutions
• Building some of the largest scale intelligence tooling on earth to defend against evolving security threats
• Production incidents and being part of an on-call rotation

Technical Requirements:

• Strong experience designing and implementing distributed systems at scale
• Deep expertise in service-oriented architecture design patterns
• Proven track record of leading technical projects and making architectural decisions
• Strong proficiency in Python and Typescript
• Experience building production-grade applications
• Experience with AWS services and cloud-native architectures
• Demonstrated ability to optimize and scale data processing pipelines
• Experience with monitoring, troubleshooting, and optimizing distributed systems