Senior Backend Engineer
🔒 Confidential Employer
Posted 20 April 2026
LOCATION
Remote
TYPE
Full-time
LEVEL
Mid-Senior level
SALARY
£85,000 / year
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion
SKILLS
Python
Microservices architecture
Postgres
MongoDB
Event-driven architectures
Kafka
Airflow
Backend applications
FULL DESCRIPTION
Senior Backend Engineer | High-Growth Cybersecurity Scale-Up | Fully Remote (UK based)
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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