Senior Software Engineer – Backend, Behavioral Security Products

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🕒 December 9, 2025

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Abnormal Security

WebsiteLinkedInAll Job Openings

501 - 1000 employees

🔒 Cybersecurity

Cybersecurity

Abnormal Security is a provider of cloud-native email security solutions that specializes in preventing a wide array of cyber threats. The company focuses on protecting businesses from attacks such as phishing, malware, ransomware, and social engineering, ensuring total protection for corporate email systems. Their offerings include business email security, phishing detection, and securing against account takeovers, making them a leader in the computer and network security space.

📋 Description

• 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. • Collaborate with product managers, designers, and engineers to align on specifications and priorities. • Break down complex projects into clear executable steps and drive them to completion. • Actively contribute to roadmap discussions and propose long-term technical plans. • Communicate effectively in an async-first environment, providing clarity on updates, challenges, and solutions. • Mentor peers, share knowledge, and influence engineering practices across the team.

🎯 Requirements

• 7+ years of industry experience, with proven expertise as a Senior Software Engineer. • Strong backend proficiency in Python, with experience designing and scaling production systems. • Proven experience with large scale system design, building resilient, scalable, and fault-tolerant applications. • Strong knowledge of relational databases and modern data storage technologies. • Familiarity with service-to-service communication (gRPC, Kafka) and caching (Redis). • Experience with AWS cloud services (S3, RDS) and deployment practices. • Familiarity with containerization and orchestration (Docker, Kubernetes, Helm). • Strong understanding of service health, monitoring, and incident response practices. • Experience writing technical design documents and influencing adoption across teams.

🏖️ Benefits

• Flexible working hours • Remote work options