Backend Engineer for AI-Powered Security Platform

Abnormal AI; United Kingdom; On-site; GBP 70,000 - 110,000; Full time

Job summary

Abnormal AI in the United Kingdom is seeking a Software Engineer to help build and evolve our platform as it scales, blending backend systems with AI‑powered features. You will own features and production systems, working with senior engineers to improve reliability, reduce latency, and speed up release cycles.

Ideal candidates have 3-5 years shipping production backend systems, strong Python, and experience with design fundamentals, databases, and cloud/docker tooling.

Qualifications

• 3-5 years of industry experience as a Software Engineer, with a track record of shipping production backend systems.
• Solid backend proficiency in Python, with experience building and maintaining production systems.
• Experience with system design fundamentals and building reliable, scalable applications.
• Working knowledge of relational databases and modern data storage technologies.
• Exposure to service-to-service communication (gRPC, Kafka) and caching (Redis) is a plus.
• Experience with AWS cloud services (S3, RDS) and deployment practices.
• Familiarity with containerization and orchestration (Docker, Kubernetes, Helm) is a plus.
• Understanding of service health, monitoring, and incident response practices.
• Comfortable writing technical documentation and contributing to design discussions.

Responsibilities

• 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.

Skills

Python

System design

Relational databases

gRPC

Kafka

Redis

AWS

Docker

Kubernetes

Helm

Monitoring

Incident response

Documentation

Tools

LangChain

OpenAI API

Job description

Abnormal AI in the United Kingdom is seeking a Software Engineer to help build and evolve our platform as it scales, blending backend systems with AI‑powered features. You will own features and production systems, working with senior engineers to improve reliability, reduce latency, and speed up release cycles.

Ideal candidates have 3-5 years shipping production backend systems, strong Python, and experience with design fundamentals, databases, and cloud/docker tooling.