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Software Engineer - Backend - Behavioral Security Products
Abnormal Security
Remote · United KingdomSalary not disclosedfull-timeAbnormal Security Careers
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 This team owns the end-to-end development and operation of the infrastructure, ML models, AI agents, customer-facing APIs, and internal tools that power Abnormal's Identity Threat Protection (ITP) product.
Responsibilities
- Technical Delivery & Excellence
- Design, build, and iterate on scalable backend and ML systems, APIs, frameworks, and internal tools.
- Take ownership of well-scoped features and components, with guidance from senior engineers on more complex, cross-system work.
- Contribute to the stability, reliability, and operational excellence of critical systems.
- Write clean, testable, and resilient code with attention to edge cases and performance.
- Contribute to technical design documents and participate in design discussions.
- Participate in code and design reviews, and contribute to on-call rotations.
- AI Engineering & Agents
- Help design and build LLM-powered features and agentic workflows (e.g., automated investigation, triage, or remediation assistants) as part of the ATO platform.
- Integrate LLM APIs and agent frameworks into backend services, with attention to reliability, cost, latency, and evaluation.
Languages
- Work format
- Remote
- Seniority
- Mid
- Posted
- 16 Sept 2026
- Last verified
- In the last 5 days
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