[Remote] Staff Software Engineer - Backend - Message Security Detection (Detection Serving & Signals)

Note: The job is a remote job and is open to candidates in USA. Abnormal AI is seeking a Staff Backend Software Engineer to join their Detection Team, which is focused on developing advanced technology to combat sophisticated email and cloud-based attacks. The role involves scaling and optimizing a high-throughput, low-latency scoring infrastructure to enhance customer experience and ensure reliable service. Responsibilities • Lead the architecture, design, and implementation of highly scalable backend services and infrastructure supporting our world-class Detection Engine • Spearhead critical projects to meet ambitious goals, such as scaling components of Detection's Scoring Pipeline by 10x while maintaining or improving performance • Collaborate closely with ML Engineering teams to gather requirements, provide technical leadership, and drive execution of infrastructure improvements • Mentor and coach junior engineers through 1-on-1s, pair programming, and high-quality code and design reviews • Continuously optimize system performance, reliability, and efficiency to meet growing demand and evolving threat landscape Skills • 8+ years of professional experience as a hands-on engineer building and scaling data-intensive products • Extensive experience with real-time, online, high-throughput & low-latency distributed systems • Proven ability to maintain 99.99% uptime for services handling 50k+ QPS • Strong track record of cross-functional collaboration and driving complex projects to completion • Demonstrated leadership in setting and maintaining high standards for project execution and code quality • Experience in fast-paced or start-up like environment • Experience with cloud-native architectures and microservices • Experience with event-driven architecture such as Kafka, Pub/Sub, etc • Familiarity with ML systems/products and distributed system technologies (e.g., Python, Golang, Kafka, Redis, Docker, Kubernetes, feature serving platforms, ML training and serving infrastructures) • Hands-on experience optimizing high-throughput online systems • MS or PhD in Computer Science, Electrical Engineering, or a related field • Familiarity with the cybersecurity industry or fraud detection and its unique challenges Benefits • Bonus • Restricted stock units (RSUs) • Benefits Company Overview • Abnormal AI is the leading AI-native human behavior security platform. It was founded in 2018, and is headquartered in Las Vegas, Nevada, USA, with a workforce of 1001-5000 employees. Its website is Company H1B Sponsorship • Abnormal AI has a track record of offering H1B sponsorships, with 3 in 2025. Please note that this does not guarantee sponsorship for this specific role. Apply tot his job