Security Engineer

Security Engineer

Full-Time 63000 - 77000 £ / year (est.) Working from home possible
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At a Glance

  • Tasks: Design and enhance security for cutting-edge AI infrastructure and cloud environments.
  • Company: Join a mission-driven start-up focused on critical national infrastructure.
  • Benefits: Competitive salary, flexible work options, and opportunities for professional growth.
  • Other info: Diverse and inclusive workplace with excellent career advancement opportunities.
  • Why this job: Make a real impact in securing next-gen technology while working with innovative teams.
  • Qualifications: Experience in Security Engineering and cloud security; scripting skills are a plus.

The predicted salary is between 63000 - 77000 £ per year.

Must have the ability to achieve Security Clearance. (Won't be an immediate request but within the next 12 months).

Role Summary

We are seeking a Security Engineer to design, implement, and continuously improve security controls across our next-generation AI infrastructure and datacentre operations.

This role focuses on protecting Kubernetes-based and cloud-native environments, securing our datacentre networking and infrastructure stack, strengthening security posture, identifying and mitigating risks, and enabling secure software delivery practices.

You will work closely with engineering, platform, and operations teams to integrate security into Era4's proprietary cloud infrastructure, datacentre networks, CI/CD pipelines, containerized workloads, GPU-accelerated compute, and AI/ML platforms.

The successful candidate will combine hands-on technical expertise with a proactive approach to threat detection, vulnerability management, and security automation across our brownfield-to-modern bare metal and cloud infrastructure environments.

Key Responsibilities

Cloud & Infrastructure Security

  • Design, implement, and maintain security standard and controls for Kubernetes, Era4's proprietary cloud infrastructure.
  • Secure datacenter perimeter and internal networks using Palo Alto, Opn Sense, and Nokia networking platforms.
  • Review infrastructure architectures and perform security assessments to identify risks and recommend mitigations.
  • Application & Dev Sec

Ops Security

  • Integrate security controls into CI/CD pipelines, including SAST, DAST, dependency scanning, container image scanning, and secrets detection.
  • Partner with development teams to implement secure coding practices and remediate security findings.
  • Conduct threat modelling and security reviews for new applications, services, and infrastructure changes.

Vulnerability & Risk Management

  • Lead vulnerability identification, prioritization, remediation, and reporting activities across infrastructure and applications.
  • Develop processes for continuous security assessment and compliance monitoring.
  • Track security metrics and drive remediation efforts with engineering teams.

Detection & Response

  • Develop and maintain security monitoring, alerting, detection capabilities and incident response playbooks.
  • Investigate security incidents, perform root cause analysis, and coordinate remediation activities.
  • Support threat hunting and proactive identification of suspicious activity across cloud and Kubernetes environments.

Security Automation

  • Build automation to improve security monitoring, compliance validation, vulnerability management, and incident response workflows.
  • Leverage Infrastructure as Code and policy-as-code frameworks to enforce security standards at scale.
  • Integrate security tooling into existing operational and engineering workflows.

Required Qualifications & Experience

  • In depth experience in Security Engineering, Cloud Security, Dev Sec Ops, Infrastructure Security, or Datacentre Security.
  • Expert knowledge of cloud security principles and experience securing Kubernetes environment , container security, workload protection, and cloud-native security tooling.
  • Hands-on experience with datacentre network security, firewalls, and network segmentation (Palo Alto firewalls, Opn Sense, Nokia networking, or similar).
  • Familiarity with CI/CD security controls, secure software development practices, and supply chain security.
  • Experience with SIEM, logging, monitoring, and security analytics platforms.
  • Hands-on experience with vulnerability management platforms and security assessment methodologies.
  • Scripting and automation skills using Python, Bash, or similar languages.
  • Experience implementing security controls using Infrastructure as Code (Terraform, Ansible, or similar)

Nice to Have

  • Experience securing AI/ML or GPU-based infrastructure.
  • Familiarity with compliance frameworks such as SOC 2, ISO 27001, NIST CSF, CIS Benchmarks, or PCI DSS.
  • Experience with threat modelling, penetration testing, or red team engagements.
  • Security certifications such as CISSP, GSEC, GCIH, GCIA, CCSK, CCSP, or relevant cloud security certifications.

Why Join Era4

You’ll be joining a mission-driven start-up building critical national infrastructure, where operational excellence directly enables growth.

This role offers high visibility with leadership, real autonomy, and the chance to shape how a next-generation company operates at scale.

Diversity & Inclusion

Era4 is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Security Engineer employer: Era4

Join a dynamic start-up that is at the forefront of building critical national infrastructure, where your role as a Service Desk Analyst will be pivotal in ensuring operational excellence. With a strong focus on employee growth and autonomy, you'll have the opportunity to work closely with leadership and influence the company's operations while enjoying a supportive and collaborative work culture. Located in a vibrant area, this position offers the chance to be part of a mission-driven team dedicated to making a meaningful impact.

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Contact Details:

Era4 Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Security Engineer

Get Involved in the Cybersecurity Community

Diving into the cybersecurity community is key for landing that full-time gig. Join forums like Reddit's r/cybersecurity or attend local meetups to connect with industry veterans and other job seekers. Networking is everything in this field—don’t just be a passive lurker!

Show Off Your Skills with Capture the Flag Competitions

Participate in Capture the Flag (CTF) competitions; these are not just a fun way to boost your skills but also a chance to showcase your talent to potential employers. Many companies, including Era4, love seeing candidates who actively engage in these challenges.

Tailor Your Online Presence

Make sure your LinkedIn and any professional profiles reflect your cybersecurity expertise. Share your projects, whether they’re personal or from a previous role, to catch the eye of hiring managers. This is how they’ll find your passion and commitment to the field!

Apply Directly Through Era4

Don’t forget to head straight to our website and check out any openings for cybersecurity roles at Era4. Applying directly can sometimes give you an edge, especially if you can mention that you've been following our work or engaging in the community.

We think you need these skills to ace Security Engineer

Security Clearance
Cloud Security
Kubernetes Security
Datacentre Network Security
Palo Alto Firewalls
OpnSense
CI/CD Security Controls

Some tips for your application 🫡

Show off your technical skills:In cybersecurity, it's crucial to highlight your technical prowess. Make sure your CV showcases specific skills like network security, penetration testing, or threat analysis. If you have relevant certifications (like CEH or CISSP), pop those on the front page to grab attention!

Tailor your portfolio for the role:Even for a full-time role, a portfolio can set you apart. If you've worked on any cybersecurity projects—be it CTF challenges, security assessments, or research papers—include these in your application. This demonstrates not just your skills, but also your hands-on experience!

Use real-world examples:When writing your cover letter, don’t just stick to your qualifications. Share real-world examples of how you’ve tackled security issues or vulnerabilities. This gives the hiring team at Era4 insight into your practical problem-solving abilities and makes your application memorable.

Demonstrate your passion for cybersecurity:Cybersecurity is an ever-evolving field, so show us that you’re always learning! Mention any recent courses, webinars, or industry events you’ve attended. This not only exhibits your enthusiasm but also signals to Era4 that you’re committed to staying ahead in the game.

How to prepare for a job interview at Era4

Sharpen Your Technical Skills

For a role in cybersecurity, it’s essential to be up-to-date with the latest tools and techniques. Brush up on your knowledge of firewalls, intrusion detection systems, and vulnerability assessment tools. Be ready to discuss specific scenarios where you’ve applied these skills, as hands-on experience can really set us apart in interviews.

Prepare for Scenario-Based Questions

Expect the interviewers at Era4 to throw in some hypothetical situations to see how you’d handle them. Think about common security breaches or incidents and be prepared to explain how you would respond. This not only shows your problem-solving skills but also your understanding of real-world cybersecurity challenges.

Highlight Your Certifications

Certifications like CompTIA Security+, CISSP, or CEH can give you a significant edge in a full-time role in cybersecurity. Make sure to mention these during your interview and be prepared to discuss what you learned through those certifications and how they relate to the position at Era4.

Show Your Passion for Cybersecurity

Since you’re going for a full-time gig, showing genuine enthusiasm for the field can make all the difference. Share any personal projects, blogs, or communities you’re part of that relate to cybersecurity. This not only showcases your passion but also your commitment to staying engaged in this ever-evolving field.