Platform Engineer

Sanderson; Greater London; Hybrid; GBP 85,000 - 110,000; Full time

Benefits offered by this job

Performance bonus

Hybrid working in London

Exposure to modern AWS technologies

Job summary

Sanderson in London is seeking a hands-on Platform Engineer to design, build and support secure, highly available AWS-based platforms and APIs.

You will own infrastructure, implement IaC with Terraform, and develop CI/CD pipelines with GitHub and Jenkins while working with Kubernetes and Fargate.

This role emphasizes security, reliability and collaboration with Architecture and Security teams in a regulated environment.

Qualifications

• 3+ years in Platform Engineering, Cloud Engineering or SRE.
• Strong AWS production experience.
• Terraform IaC expertise.
• Experience with CI/CD pipelines & containerized/serverless workloads.
• Experience in regulated environments.

Responsibilities

• 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.
• Collaborate with security teams to ensure security and compliance.
• Create and maintain technical docs, runbooks and processes.

Skills

Cloud engineering

Platform engineering

SRE

Security-first mindset

Python scripting

Troubleshooting

Tools

AWS

Terraform

Docker

Kubernetes

GitHub Actions

Jenkins

CloudWatch

Splunk

Job description

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
• API security experience
• 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