Anthropic design choice exposed 150M+ downloads, and 200K servers to complete takeover

Backend Developer, Research Group (B2B contract)

EMEA · Full-time · Senior

About The Position

About the Position

Ox Security is the pioneer of Active ASPM, purpose-built to secure the modern software supply chain in the age of AI. While traditional tools overwhelm teams with endless alerts, Ox cuts through the noise to identify the critical 5% of risks - those that are truly reachable and exploitable. From GenAI-generated code to cloud runtime, we provide developers and security teams with the visibility and automation needed to ship secure software, faster.

We’re looking for a strong Backend Engineer to join our Security Research group and build the systems that power our open source intelligence and research efforts.

This is a high-impact individual contributor role where you’ll work closely with researchers, turning prototypes, scrapers, and data pipelines into scalable, production-grade systems. You’ll own projects end-to-end -  from design through deployment - with a high level of autonomy.


Responsibilities

What You’ll Be Doing

  • Design, build, and maintain systems that collect open source intelligence at scale
  • Build and own APIs that enable other teams to consume and leverage this data
  • Take research prototypes and turn them into robust, observable production services
  • Define and evolve architecture and data pipelines for large-scale data processing
  • Work closely with researchers to translate ideas into scalable engineering solutions
  • Own projects end-to-end, from scoping and design to deployment and monitoring

Requirements

What We’re Looking For

  • 5+ years of backend development experience (Python, JavaScript, or similar)
  • Hands-on experience with high-scale systems and large datasets
  • Proven track record of building and operating production services in a SaaS environment
  • Strong ability to work independently and drive projects end-to-end
  • Experience designing scalable architectures and data pipelines
  • AI-first mindset — comfortable leveraging LLMs and automation tools in your workflow
  • Strong problem-solving skills and a builder mindset

Bonus Points for

  • Background at a cybersecurity startup
  • Malware analysis or reverse engineering experience (obfuscation, encryption, time bombs, sandboxing)
  • Web penetration testing
  • Active CTF player
  • ETL pipeline experience
  • Redis, Postgres, Kafka

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