Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK based)
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 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:
1. Designing and building backend services and data pipelines powering a cutting-edge cybersecurity platform
2. Architecting scalable microservices and APIs to process massive volumes of security data
3. Working closely with product and frontend teams to integrate backend services into the platform experience
4. Continuously improving systems performance, deployment, and monitoring as the company scales globally
What they’re looking for:
5. 5+ years’ experience designing and maintaining mission-critical backend applications
6. Strong Python engineering skills, with a track record of building performant, maintainable, and testable systems
7. Solid background in microservices architecture
8. Proficiency with Postgres & MongoDB (relational + non-relational)
9. Experience with event-driven architectures and asynchronous workflows (Kafka, Airflow, etc.)
10. Solid coding practices (clean, testable, automated)
11. 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?
âś… Competitive salary + benefits
âś… Ownership and impact in a high-growth cybersecurity scale-up
âś… Work with cutting-edge technology and some of the brightest minds in the industry
âś… Fast-tracked career growth with internal progression opportunities
âś… 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.