Senior Backend Engineer

New Yesterday

Senior Backend Engineer High-Growth Cybersecurity Scale-Up Fully Remote (Global)

Are you ready to build the core systems that power one of the fastest-growing cybersecurity platforms on the planet?

This is your chance to join a research-driven, venture-backed security scale-up that's trusted by some of the world's biggest enterprises and critical infrastructure providers. Recognised by Gartner, armed with $29M+ in funding, and scaling aggressively worldwide, they're on a mission to reshape how organisations stay ahead of real-world cyber threats.

As a Senior Backend Engineer, you'll play a key role in building scalable, high-performance backend systems that ingest, process, and serve data on millions of assets-helping global security teams uncover exposures before attackers do.

What you'll be doing:

  • Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platform
  • Architecting scalable microservices and APIs to process massive volumes of security data
  • Working closely with product and frontend teams to integrate backend services into the platform experience
  • Continuously improving systems performance, deployment, and monitoring as the company scales globally

What they're looking for:

  • 5+ years' experience designing and maintaining mission-critical backend applications
  • Strong Python engineering skills, with a track record of building performant, maintainable, and testable systems
  • Solid background in microservices architecture
  • Proficiency with Postgres & MongoDB (relational + non-relational)
  • Experience with event-driven architectures and asynchronous workflows (Kafka, Airflow, etc.)
  • Solid coding practices (clean, testable, automated)
  • The mindset of a builder: thrives in fast-paced startup environments, takes ownership, solves complex challenges

Bonus points if you've worked with: large-scale data processing, ETL pipelines, cloud deployments, or DevOps/CI-CD practices.

Why join?

  • Competitive salary + benefits
  • Ownership and impact in a high-growth cybersecurity scale-up
  • Work with cutting-edge technology and some of the brightest minds in the industry
  • Fast-tracked career growth with internal progression opportunities
  • Remote-first culture with the best tools and kit to succeed

This is more than a backend engineering role - it's a chance to be part of a team building technology that helps some of the world's largest enterprises stay ahead of attackers.

Interested? Let's talk - this one won't be around for long.

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Location:
City Of London, England, United Kingdom
Salary:
£80,000 - £100,000
Job Type:
FullTime
Category:
IT & Technology

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