Senior AWS Platform Engineer

Gravitas Recruitment Group UK; United States; Remote; USD 459,000 - 654,000; Full time

Job summary

Gravitas Group is seeking a Senior Platform/Infrastructure Engineer to work with principal engineers on a high-traffic publishing platform. You will support technical strategy, hands-on delivery, mentoring and standards from a remote, six-month engagement.

You will manage multi-account AWS, Terraform, Kubernetes, Docker, CI/CD, and security/reliability improvements, while enabling agentic AI workloads and documenting architectures.

Qualifications

• 8+ years of commercial platform, DevOps or infrastructure engineering.
• Deep multi-account AWS: EKS, Lambda, RDS, CloudFront, IAM, VPC.
• Terraform as IaC and ability to migrate away from CloudFormation.
• CI/CD with CircleCI and GitHub.
• Strong Linux scripting (Python or Bash).
• Kubernetes and Docker in production.
• Security by design and observability (monitoring, logging, alerting).
• Genuine interest in agentic AI, with views on where it helps and where it doesn’t.

Responsibilities

• Investigate the legacy estate across multiple AWS accounts and decide what to retire, consolidate or keep.
• Migrate unmanaged resources into Terraform, migrating away from CloudFormation where appropriate.
• Find and fix infrastructure security issues across IAM, networking, secrets and data stores.
• Operate and improve EKS clusters, serverless Lambda apps, and RDS (Postgres) databases.
• Improve CI/CD pipelines on CircleCI and GitHub.
• Build and support infrastructure for agentic AI workloads (Bedrock and AgentCore).
• Mentor and guide other engineers; perform thorough infrastructure code reviews for security, reliability and cost.
• Write clear documentation and architecture diagrams.

Skills

Mentorship

Security by design

Observability

Tools

Terraform

CloudFormation

CircleCI

GitHub

Linux scripting

Kubernetes

Docker

PostgreSQL

Job description

Role Overview

We are looking for someone to work alongside principal engineers and peers to make a high-traffic publishing platform simpler, safer and better understood. Reports to a Principal Platform Engineer, supporting technical strategy, hands-on delivery, mentoring and standards.
Rate: £300 (Outside)
Location: Remote
Contract: 6 Months
Start: ASAP

Key Responsibilities

Legacy estate & migration

• Investigate the legacy estate across six AWS accounts: what exists, why, and what depends on it
• Decide with the team what to retire, consolidate or keep
• Bring unmanaged and CloudFormation resources into Terraform (the standard for all new work since 2023)

Security & reliability

• Find and fix infrastructure security issues across IAM, networking, secrets and data stores
• Make changes safely to the large, shared CloudFront distribution in front of everything

Platform operations

• Operate and improve EKS clusters, serverless Lambda applications and RDS databases (mostly Postgres)
• Improve CI/CD pipelines on CircleCI and GitHub

Agentic AI

• Build and support infrastructure for agentic AI workloads, including Amazon Bedrock and AgentCore
• Use agentic coding tools in your own work and help the team adopt them safely

Team & standards

• Carry out thorough infrastructure code reviews (security, reliability, cost)
• Mentor and guide other engineers
• Write clear documentation and architecture diagrams

Essential Requirements

• 8+ years of commercial platform, DevOps or infrastructure engineering
• Deep multi-account AWS: EKS, Lambda, RDS, CloudFront, IAM, VPC
• CircleCI and GitHub for CI/CD
• Strong Terraform, plus enough CloudFormation to read it and migrate away from it
• Solid Linux administration and scripting (Python or Bash)
• Kubernetes and Docker in production
• Engineering fundamentals: version control discipline, small reversible changes, automated testing of infrastructure code
• Security by design and observability (monitoring, logging, alerting)
• Genuine interest in agentic AI, with views on where it helps and where it doesn’t