Senior Platform Engineer - Defence / National Security in London
Senior Platform Engineer - Defence / National Security

Senior Platform Engineer - Defence / National Security in London

London Full-Time 60000 - 75000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and build secure AWS cloud platforms for Defence and National Security.
  • Company: Leading digital technology consultancy with a focus on innovation.
  • Benefits: Competitive salary, DV allowance, clear progression routes, and annual promotions.
  • Other info: Join a fast-growing team with opportunities for mentorship and leadership.
  • Why this job: Make a real impact in national security while advancing your career in cloud engineering.
  • Qualifications: Active DV clearance and strong AWS platform experience required.

The predicted salary is between 60000 - 75000 £ per year.

Active DV clearance required.

SR2 is supporting a leading digital technology consultancy as it looks to appoint a number of Senior Platform Engineers into its growing Defence and National Security practice. This is a hands-on, end-to-end cloud engineering role supporting a secure cloud platform programme, focused on helping a major public sector organisation move from on-premise environments into AWS cloud. You will help design, build, automate, secure and support modern cloud platforms used on nationally important services.

This opportunity is particularly well suited to a senior engineer with strong, recent AWS platform experience, a good understanding of CI/CD and automation, and the ability to contribute to platform design decisions while mentoring junior engineers. You will work closely with architects, security specialists and wider engineering teams to deliver scalable, secure and reliable cloud services in a complex secure environment.

Key Responsibilities
  • Design, build and support secure AWS cloud platform components for Defence and National Security programmes.
  • Work closely with architects on cloud platform deployment, design and technical decision-making.
  • Build, maintain and improve CI/CD pipelines for reliable software and infrastructure delivery.
  • Automate infrastructure and platform services using tools such as Terraform, Ansible or equivalent.
  • Work with AWS services such as Lambda, S3 and wider cloud-native tooling.
  • Monitor, secure and continuously improve cloud platforms using tools such as Prometheus and Grafana.
  • Apply security best practice across AWS environments, including firewalls and secure cloud controls.
  • Coach and mentor junior engineers, helping to build strong DevOps engineering standards across the team.
Skills & Experience
  • Active DV clearance is essential; candidates must already hold DV clearance.
  • Strong, recent hands-on AWS cloud platform experience.
  • Experience designing, building, testing, automating, monitoring and supporting modern digital service platforms.
  • Good experience building CI/CD pipelines.
  • Infrastructure as Code and automation experience, ideally with Terraform and/or Ansible.
  • Good understanding of cloud security, AWS security controls and secure platform design.
  • Scripting or coding experience in Python, Bash, Node.js or similar.
  • Experience working in multidisciplinary agile, DevOps or platform engineering teams.
Package & Benefits
  • Competitive salary £500 per month DV allowance.
  • Clear progression routes into Lead Platform Engineer, Tech Lead or Platform Technical Architect roles.
  • Annual promotion cycle, with out-of-cycle promotions considered on a case-by-case basis.
  • Opportunity to work within one of the organisation's fastest-growing strategic areas.

Senior Platform Engineer - Defence / National Security in London employer: SR2

As a leading digital technology consultancy, we pride ourselves on fostering a collaborative and innovative work culture that empowers our employees to excel in their roles. With clear progression routes and opportunities for mentorship, particularly in our Defence and National Security practice, we offer a dynamic environment where your contributions directly impact nationally important services. Located in a vibrant area, our team enjoys competitive salaries, a DV allowance, and the chance to work with cutting-edge cloud technologies while advancing their careers.
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Contact Detail:

SR2 Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Platform Engineer - Defence / National Security in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the Defence and National Security sector. Attend meetups or webinars, and don’t be shy about asking for introductions. We all know that sometimes it’s not just what you know, but who you know!

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your AWS projects, CI/CD pipelines, and any automation work you've done. This gives potential employers a tangible look at what you can bring to the table. We love seeing practical examples of your expertise!

✨Tip Number 3

Prepare for those interviews! Research the company and its projects in the Defence sector. Be ready to discuss how your experience aligns with their needs, especially around cloud security and platform design. We want you to shine and show them why you’re the perfect fit!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we often have exclusive roles listed there that you won’t find anywhere else. Let’s get you on board with us!

We think you need these skills to ace Senior Platform Engineer - Defence / National Security in London

AWS Cloud Platform Experience
CI/CD Pipeline Development
Infrastructure as Code
Terraform
Ansible
Cloud Security Best Practices
AWS Security Controls
Platform Design
Scripting in Python
Bash
Node.js
Monitoring Tools (Prometheus, Grafana)
DevOps Engineering Standards
Mentoring Junior Engineers
Agile Methodologies

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your recent AWS platform experience and any relevant projects you've worked on. We want to see how your skills align with the role, so don’t be shy about showcasing your cloud engineering expertise!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you're passionate about Defence and National Security, and how your background makes you a perfect fit for our team. Keep it engaging and personal – we love to see your personality!

Showcase Your Technical Skills: When filling out your application, make sure to mention your experience with CI/CD pipelines, Terraform, and Ansible. We’re looking for someone who can hit the ground running, so highlight any hands-on projects that demonstrate your technical prowess.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way to ensure your application gets into the right hands. Plus, it shows us you’re serious about joining our awesome team at StudySmarter!

How to prepare for a job interview at SR2

✨Know Your AWS Inside Out

Make sure you brush up on your AWS knowledge before the interview. Be ready to discuss specific services like Lambda and S3, and how you've used them in past projects. This will show that you’re not just familiar with AWS, but that you can apply it effectively in real-world scenarios.

✨Showcase Your CI/CD Expertise

Prepare to talk about your experience with CI/CD pipelines. Bring examples of how you've built and maintained these pipelines, and be ready to discuss the tools you’ve used, like Terraform or Ansible. This will demonstrate your hands-on experience and understanding of automation in cloud environments.

✨Emphasise Security Best Practices

Since this role is focused on Defence and National Security, it's crucial to highlight your knowledge of cloud security. Be prepared to discuss AWS security controls and how you've implemented secure platform designs in previous roles. This will show that you take security seriously and understand its importance in cloud engineering.

✨Mentorship Matters

As a senior engineer, you'll likely be mentoring junior engineers. Think of examples where you've coached others or contributed to team standards. Sharing these experiences will illustrate your leadership skills and your commitment to building a strong engineering culture.

Senior Platform Engineer - Defence / National Security in London
SR2
Location: London

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