Senior Backend Engineer

Xact Placements Limited; City Of London; Remote; GBP 70,000 - 90,000; Full time

Job summary

A leading cybersecurity platform is seeking a Senior Backend Engineer to design and build scalable backend services and data pipelines. The role is fully remote and ideal for candidates with over 5 years of experience in backend applications. Join a rapidly growing team that is reshaping cybersecurity for major enterprises worldwide.

Qualifications

• 5+ years’ experience designing and maintaining mission-critical backend applications.
• Proficient in building scalable backend systems.

Responsibilities

• Design and build backend services and data pipelines.
• Architect scalable microservices and APIs.
• Integrate backend services with frontend teams.
• Improve systems performance, deployment, and monitoring.

Skills

Backend services design

Microservices architecture

API development

Performance tuning

Job description

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...