Security Engineer - Security Operations

Perk; Greater London; On-site; GBP 72,000 - 85,000; Full time

Benefits offered by this job

Equity options

Private medical insurance

Life insurance

Income protection

Dental insurance

Job summary

Perk is hiring a Security Operations Engineer in the UK to design, implement and maintain advanced threat detection solutions across cloud environments. You will develop and refine detection rules, IOCs, and signatures while staying current with industry threats and best practices.

Role requires hands-on SIEM/EDR experience, scripting in Python for automation, and IaC exposure with Terraform or Pulumi. Excellent communication and English fluency are essential for collaborating with stakeholders

Qualifications

• We hold a degree in Computer Science, IT, or related field.
• Experience as Security Operations Engineer in SOC or similar.
• Hands-on with SIEM, EDR, IDS/IPS and other security tools.
• Scripting in Python for automation and tool customization.
• Experience with infrastructure-as-code tools like Terraform or Pulumi.
• Strong networking and cybersecurity framework knowledge.
• Excellent analytical, problem-solving and communication skills.
• Fluent in English; other languages are a plus.

Responsibilities

• Design, implement, and maintain advanced threat detection solutions.
• Improve threat detection and response by optimizing security tools and configurations.
• Develop and optimize detection rules,signatures and IOCs across platforms.
• Stay updated on industry trends, threats, and best practices.
• Secure SaaS apps and infrastructure with best practices and monitoring.
• Ensure ISO 27001, SOC 2, PCI-DSS compliance through governance and controls.
• Collaborate with non-engineering teams to drive improvements.
• Work with Product Security to secure multiple cloud technologies.
• Enhance threat hunting, incident response and security operations through continuous improvement.

Skills

Security engineering

Threat detection

Python scripting

SOC tooling

Networking knowledge

Communication

Incident response

Education

Bachelor's degree in Computer Science/IT or related field

Tools

Terraform

Pulumi

Python

Job description

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 36 week of 2026