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- Tasks: Shape and deliver secure AWS platforms while leading technical projects.
- Company: Join a leading tech firm focused on national security and innovative cloud solutions.
- Benefits: Competitive salary, remote-first work, 25 days holiday, and pension contributions.
- Why this job: Make a real impact on critical projects and influence cloud architecture.
- Qualifications: Experience in AWS platforms, Infrastructure as Code, and strong leadership skills.
- Other info: Opportunity for autonomy and collaboration with industry experts.
The predicted salary is between 120000 - 140000 £ per year.
£120,000 – £140,000 + benefits
Remote-first (UK) with occasional client-site travel
We are hiring for a brand-new Principal Platform Engineer role for one of our long-standing clients and looking for a cool person who wants to shape, not just deliver, cloud platforms at scale. The company designs and builds some of the most secure AWS environments in the UK, supporting national security, defence, and highly regulated public sector organisations. This is a 60% hands-on / 40% hands-off role, ideal for a senior engineer who still loves being close to the tech, but also thrives on architecture ownership, stakeholder influence, and team leadership.
You’ll play a pivotal role in defining AWS platform strategy, leading delivery across complex programmes, and acting as a trusted technical voice for both clients and internal teams. If you’ve worked with AWS Landing Zones at scale, this is where you’ll do your best work (but that’s not essential).
What you’ll be doing:
- Own and evolve AWS platform architecture across complex, multi-account, highly secure environments
- Design, implement and optimise AWS Landing Zones
- Act as a technical leader and escalation point across multiple projects and client engagements
- Balance hands-on engineering with technical leadership, design authority and stakeholder management
- Build and maintain Infrastructure as Code using Terraform, CloudFormation and AWS CDK
- Embed security-by-design, integrating services such as IAM, KMS, GuardDuty, Security Hub and Inspector
- Design CI/CD pipelines enabling self-service, repeatable and auditable deployments
- Partner closely with AWS, internal delivery teams, and senior client stakeholders
- Mentor and lead engineers, raising the bar for engineering quality, documentation and best practice
Skills:
Essential:
- Significant hands-on experience designing and running AWS platforms at scale
- Strong background in secure cloud architecture for regulated environments
- Proven experience balancing technical delivery with leadership and stakeholder management
- Infrastructure as Code expertise (Terraform / CloudFormation / CDK)
- Strong understanding of AWS networking, IAM, encryption and security patterns
- Eligibility for SC clearance
Nice to have:
- AWS Landing Zone accelerator or framework experience
- Kubernetes / EKS and container platforms
- Observability tooling (Grafana, Prometheus, ELK, OpenTelemetry)
- Python, Go or similar for automation
- Experience working directly with AWS on architecture or delivery
The nitty and gritty:
- £120,000 – £140,000 salary depending on experience
- Remote-first working, with meaningful but limited client travel
- Opportunity to shape a new role with real autonomy and influence
- Work on nationally critical, genuinely interesting projects
- Collaborate with senior engineers, AWS specialists and industry leaders
- 25 days holiday + bank holidays
- Up to 5% employer pension contribution
Principle Platform Engineer employer: SR2 REC LTD
Contact Detail:
SR2 REC LTD Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Principle Platform Engineer
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who work with AWS or in similar roles. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio or GitHub repository showcasing your projects, especially those involving AWS Landing Zones or Infrastructure as Code. This gives potential employers a taste of what you can do.
✨Tip Number 3
Prepare for interviews by brushing up on both technical and leadership questions. Be ready to discuss how you've balanced hands-on engineering with team management in past roles. We want to see your thought process!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive about their job search.
We think you need these skills to ace Principle Platform Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Principal Platform Engineer role. Highlight your AWS expertise, especially if you've worked with secure environments or AWS Landing Zones. We want to see how you can shape cloud platforms!
Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to tell us why you're passionate about this role and how your background makes you the perfect fit. Don’t forget to mention any leadership experience and your approach to stakeholder management.
Showcase Your Technical Skills: In your application, be sure to highlight your hands-on experience with Infrastructure as Code tools like Terraform or CloudFormation. We love seeing practical examples of how you've implemented secure cloud architectures in your previous roles.
Apply Through Our Website: We encourage you to apply directly through our website for the best chance of getting noticed. It’s super easy, and we’ll make sure your application gets into the right hands. Let’s get started on this exciting journey together!
How to prepare for a job interview at SR2 REC LTD
✨Know Your AWS Inside Out
Make sure you brush up on your AWS knowledge, especially around secure cloud architecture and AWS Landing Zones. Be ready to discuss your hands-on experience and how you've designed and optimised AWS platforms in the past.
✨Showcase Your Leadership Skills
This role is about balancing technical delivery with leadership. Prepare examples of how you've led teams, mentored engineers, and influenced stakeholders. Highlight your ability to communicate complex technical concepts clearly.
✨Demonstrate Infrastructure as Code Expertise
Be prepared to talk about your experience with Terraform, CloudFormation, or AWS CDK. You might even want to bring a project example where you implemented Infrastructure as Code, showcasing your problem-solving skills and attention to detail.
✨Emphasise Security-By-Design
Since this role involves working in highly secure environments, be ready to discuss how you've integrated security practices into your cloud architecture. Mention specific services like IAM, KMS, and GuardDuty that you've used to enhance security.
