Platform Engineer
About RefractalRefractal is an AI security company building the infrastructure organisations need to defend against autonomous AI threats. 2…
Role: Platform Engineer Location: London Area, United Kingdom (Hybrid) Employment Type: Full-time Seniority: Mid-Senior Salary: £75,000 - £90,000 + Bonus
Are you a Platform Engineer who enjoys owning services, solving complex operational challenges, and building secure cloud platforms at scale?
We're looking for a hands-on Platform Engineer to help design, build and support secure, highly available cloud infrastructure within a fast-paced, regulated environment.
This is more than a traditional infrastructure role. You'll play a key part in building and operating AWS-based platforms, supporting critical API services, improving operational resilience, managing incidents, and working closely with Architecture and Security teams to deliver secure and reliable services.
If you enjoy combining cloud engineering, automation, security, operational ownership and continuous improvement, we'd love to hear from you. The Role
Design, build and maintain secure, scalable AWS infrastructure
Develop and manage Infrastructure as Code using Terraform
Build and enhance CI/CD pipelines using GitHub, Jenkins and similar tooling
Support containerised and serverless workloads using Kubernetes, Docker and AWS Fargate
Own and support production services and APIs
Monitor platform health, performance and availability
Manage observability, logging and alerting capabilities
Troubleshoot complex technical issues and drive root cause analysis
Support incident response and service restoration activities
Work closely with Security teams to ensure services remain secure and compliant
Support certificate lifecycle management, access controls and secrets management
Collaborate with architects, engineers and third-party suppliers
Create and maintain technical documentation, runbooks and operational processes
Drive platform reliability, resilience and continuous improvement initiatives
Skills & Experience Required
3+ years' experience in Platform Engineering, Cloud Engineering, SRE or similar roles
Strong AWS experience within production environments
Terraform and Infrastructure as Code expertise
Experience building and maintaining CI/CD pipelines
Experience with Docker, Kubernetes and/or AWS Fargate
Strong troubleshooting and problem-solving skills
Experience supporting business-critical platforms and services
Monitoring and observability experience (CloudWatch, Splunk or similar)
Experience managing incidents within production environments
Understanding of cloud security best practices
Experience working with APIs and modern cloud architectures
Excellent communication skills with both technical and non-technical stakeholders
Ability to work independently while collaborating across technical teams
Desirable Experience
API security experience
Certificate lifecycle management
PKI, TLS/mTLS and certificate-based authentication
OAuth, OpenID Connect (OIDC) and JWT/JWKS concepts
Secrets and credential management
Site Reliability Engineering (SRE) experience
Python scripting and automation
Vendor and supplier management experience
Experience working within regulated environments
About You You'll be someone who:
Takes ownership and accountability for the services you support
Has a strong security-first mindset
Can confidently investigate incidents and communicate findings
Works effectively with engineers, architects, security teams and suppliers
Understands the operational impact of technical decisions
Enjoys solving problems and improving the way services are delivered and supported
Thrives in an environment where you'll have genuine influence and responsibility
What's On Offer?
Performance bonus
Hybrid working in London
Exposure to modern AWS technologies and large-scale API-driven services
Real ownership and autonomy
Opportunity to influence platform strategy and future architecture
Excellent career progression within a growing technology team
Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.
If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.
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