Security Engineer - Security Operations

Salary: £72,000 - 85,000 per year

Requirements:

• We hold a degree in Computer Science, Information Technology, or a related field.
• We are an accomplished Security Operations Engineer with a track record of threat detection engineering within a security operations center (SOC) or similar environment.
• We bring hands-on experience with SIEM solutions, EDR, intrusion detection/prevention systems, and other security tools.
• We are proficient in scripting languages such as Python for automating security processes and customizing security tools.
• We have prior experience implementing infrastructure-as-code tools such as Terraform or Pulumi.
• We have a strong understanding of networking protocols, cybersecurity frameworks, and attack vectors.
• We have exceptional analytical and problem-solving skills, with the ability to analyze complex security incidents and provide effective solutions.
• We have excellent communication skills and can convey technical concepts to non-technical stakeholders.
• We bring strong documentation skills for creating and maintaining threat detection rules, procedures, and incident reports.
• We are fluent in English; other languages are a plus.

Responsibilities:

• We design, implement, and maintain advanced threat detection solutions.
• We enhance threat detection and response by designing, implementing, and optimizing security tools, detection mechanisms, and secure configurations to identify and mitigate cybersecurity threats.
• We develop and optimize detection rules, signatures, and indicators of compromise (IOCs) across various security platforms.
• We continuously improve our security strategy and technology stack by staying up to date with industry trends, emerging threats, and evolving security best practices.
• We secure SaaS applications and infrastructure by implementing security best practices, access controls, and continuous monitoring.
• We ensure compliance with security frameworks such as ISO 27001, SOC 2, and PCI-DSS by developing governance, implementing necessary controls, and securing business processes.
• We collaborate with non-engineering teams and IT to drive improvements by providing consultative expertise and advisory insights for business projects.
• We design, implement, and maintain secured cloud security technologies alongside the Product Security team to achieve security and compliance objectives across multiple cloud technologies.
• We enhance threat hunting, incident response, and security operations through continuous improvement in detection, analysis, and automation.

Technologies:

• Cloud
• Support
• Pulumi
• Python
• Security
• Terraform
• AWS
• GCP

More:

We are the intelligent platform for travel and spend management, helping eliminate manual work through automation across travel bookings, expenses, invoice processing, and more. We are trusted by more than 10,000 companies worldwide and are a global team of more than 1,800 people across 12 offices, with headquarters in London and Boston. We value curiosity, purpose, and mindset, and we offer a competitive compensation package with equity options, 25 days annual leave plus bank holidays, company pension, private medical insurance, life insurance, income protection, dental insurance, tax-efficient schemes, gym discounts, mental health support, travel discounts, annual events, parental leave, volunteer time, and a work-from-anywhere allowance. We work IRL-first, with our team in person three days a week, and this role requires commuting distance to our hubs; English is the official language at the office.

last updated 34 week of 2026