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Security Engineer

Job in Belfast, County Antrim, BT1, Northern Ireland, UK
Listing for: Gremlin LTD.
Full Time position
Listed on 2026-10-07
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, Security Management & Operations, Network Security
Salary/Wage Range or Industry Benchmark: 65000 - 90000 GBP Yearly GBP 65000.00 90000.00 YEAR
Job Description & How to Apply Below

Someone’s got to stop people from leaving S3 buckets open to the world. That someone could be you.

We need a security engineer who cares about keeping things locked down, not just ticking boxes on a spreadsheet. You’ll work across cloud environments, CI/CD pipelines, and application security for our clients, finding the holes before someone else does. If you’ve ever lost sleep over a misconfigured security group, you’ll fit right in.

What you’ll do
  • Implement security controls across AWS environments
  • Configure and manage security scanning tools in CI/CD pipelines
  • Review infrastructure as code for security misconfigurations
  • Support clients with Cyber Essentials and compliance requirements
  • Monitor and respond to security alerts and incidents
  • Write security documentation and policies
  • Contribute to internal security standards and playbooks
What we’re looking for
  • 2+ years of security engineering or Dev Sec Ops  experience
  • Knowledge of AWS security fundamentals (IAM, Security Groups, KMS, Cloud Trail)
  • Experience with vulnerability scanning tools (Trivy, Snyk, or similar)
  • Understanding of network security (firewalls, TLS, VPNs)
  • Familiarity with at least one scripting language (Python, Bash, or Go)
Nice to have
  • Container security experience (Docker, Kubernetes)
  • Infrastructure as Code knowledge (Terraform, Pulumi)
  • Familiarity with compliance frameworks (SOC2, ISO 27001, Cyber Essentials)
  • Security certifications (CompTIA Security+, AWS Security Specialty)
  • Bug bounty or CTF participation
What we won’t ask you to do
  • Write a 40-page risk assessment that nobody reads
  • Rubber-stamp insecure designs because someone senior said so
  • Sit through compliance theatre. We do real security here
  • Complete a take-home test the size of a dissertation
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