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About the Role

As a Software Engineer, you will design and implement high-performance backend services and distributed systems for an autonomous offensive security platform. You will work on agentic AI systems capable of scanning, analyzing, and validating vulnerabilities at internet scale, requiring a blend of backend engineering expertise and a hacker mindset.

Responsibilities

• Develop and maintain event-driven components that orchestrate and execute core offensive security strategies.
• Translate offensive security strategies into robust, high-quality code.
• Architect and deploy backend services that power Agentic AI capabilities for intelligent, multi-step exploit validation.
• Write low-level, high-concurrency tools in Go and Python while maintaining scalable APIs.
• Design data pipelines for massive internet-wide reconnaissance data using Apache Kafka and Kubernetes/KNative.
• Shape architectural decisions and align technical strategies with business goals.

Requirements

• 3+ years of experience building large-scale distributed systems, features, or applications.
• Proficiency in GoLang, Python, C#, or similar technologies.
• Experience working with PostgreSQL.
• Background in cybersecurity.
• Ability to use AI pragmatically to accelerate development workflows.
• Exceptional problem-solving abilities to resolve production bottlenecks.
• Experience solving complex scalability and performance challenges in distributed environments.
• Strong communication skills to bridge technical complexity and product mission.
• Ability to pass a background check.

Skills

• GoLang
• Python
• C#
• PostgreSQL
• Apache Kafka
• Kubernetes
• KNative
• Distributed Systems
• Backend Engineering
• Agentic AI
• Event-driven Architecture
• Scalability
• Docker
• Helm Charts
• .NET Core
• AWS
• TypeScript
• NextJS
• ReactJS
• Neo4j

Location

• Amsterdam, Netherlands
• London, United Kingdom

Work Type

• Full-time

Experience Level

• 3+ years

Benefits

• Unlimited paid holiday
• Stock options package
• Mobile phone stipend
• Work-from-home budget
• Business travel card
• Swapfiets
• Referral bonuses

About the Company

• Hadrian is an offensive cybersecurity startup founded in August 2021.
• The company provides an autonomous Threat Exposure Management platform using agentic AI.
• Backed by ABN AMRO Ventures and Cherry Ventures.
• Diverse team from 25+ countries with nearly 100 employees.