Senior Software Engineer - Behavioral Security Products

About the Role

At Abnormal AI, we protect our customers against nefarious adversaries who are constantly evolving their techniques and tactics to outwit and undermine the traditional approaches to Security. Abnormal is recognized as a top cybersecurity startup (Leader in the 2025 Gartner Magic Quadrant for Email Security Platforms), securing a Series D funding of $250 million at a $5.1 billion valuation in August 2024. About The Team The team is responsible for the ownership, development, and operation of the infrastructure and ML models, customer facing APIs and internal tools that drive Abnormal's Account Takeover (ATO) protection product. This product is crucial for detecting malicious activity and safeguarding customers from account theft. About The Role We are looking for a Senior Software Engineer to take ownership of complex feature delivery and technical design for our ATO platform. This pivotal role involves evolving the platform to scale with expanding product requirements. The position requires a blend of hands-on backend systems development, production ownership, stakeholder management, and team mentorship. The core goal is to enhance system reliability, reduce latency, and significantly accelerate feature release cycles. What You’ll Do Technical Delivery & Excellence Design, build, and iterate on scalable backend and ML systems, APIs, frameworks, and internal tools Own end-to-end delivery of complex features that directly impact customer experience. Ensure stability, reliability, and operational excellence of critical systems. Write clean, testable, and resilient code with attention to edge cases and performance. Write and review technical design documents and influence adoption across the team. Participate in code and design reviews, and contribute to on-call rotations. Leadership & Collaboration Collaborate with product managers, designers, and engineers to align on specifications and priorities. Break down complex projects into clear e

Requirements & Qualifications

• Strong problem solving foundations, knowledge of modern engineering practices, and interest in technology systems.

Perks & Benefits

• Official mentor support
• verified hiring timeline
• and career progression.