Platform Engineer

Lorien; City Of London; Hybrid; GBP 120,000 - 138,000; Full time

Job summary

Lorien in City of London is hiring an AWS Platform Engineer for a hybrid role on a cloud transformation programme. You will own the AWS platform powering data pipelines and integration flows, provisioning infrastructure with Terraform and building CI/CD pipelines.

You will work hands-on with AWS data services (Glue, Lambda, Step Functions, EventBridge), EKS, EC2, and CloudWatch, mentoring engineers and ensuring long-term platform ownership and reliability.

Qualifications

• 5+ years hands-on AWS engineering experience with a platform/infrastructure focus.
• Hands-on Terraform experience as primary IaC tool required.
• Experience operating data pipelines on AWS (Glue, Lambda, Step Functions, EventBridge, S3, Athena).
• Experience with EKS/EC2 and CI/CD tooling; production reliability ownership.

Responsibilities

• Provisioning and maintaining AWS infrastructure using Terraform as the primary IaC tool.
• Building and running CI/CD pipelines (Bitbucket Pipelines, GitHub Actions, or GitLab CI).
• Operating data pipelines and integration flows built on Glue, Lambda, Step Functions, and EventBridge.
• Working with containerised/compute platforms - Amazon EKS and EC2.
• Monitoring, alerting, and performance optimisation via CloudWatch.
• Supporting production stability - issue resolution and continuous improvement of operational practices.
• Mentoring and upskilling internal engineers to embed sustainable, long-term ownership.

Skills

AWS platform engineering

CI/CD

Mentoring

Production reliability

Tools

Terraform

Bitbucket Pipelines

GitHub Actions

GitLab CI

AWS Glue

AWS Lambda

Step Functions

EventBridge

S3

Athena

EKS

EC2

CloudWatch

Python

AWS certifications

Job description

City of London (Hybrid - 3 days on-site) | Contract | £700/day, Inside IR35

A well-established Japanese investment bank operating in capital markets is looking for an AWS Platform Engineer to join its cloud transformation programme. This is a build-and-run role for someone who's spent their career on AWS infrastructure and automation, and who's comfortable operating the data pipelines that sit on top of it.

You'll be joining the Applications team, owning the AWS platform that data pipelines and integration flows run on - provisioning and maintaining infrastructure through Terraform, building out CI/CD, and keeping things reliable through monitoring and alerting. You don't need to be a data engineer; you do need to have worked hands-on with AWS-native data services (Glue, Lambda, Step Functions, EventBridge) as part of a platform role, and be ready to work closely with the architecture team while mentoring internal engineers to take the platform on long-term.

What You'll Be Doing

• Provisioning and maintaining AWS infrastructure using Terraform as the primary IaC tool
• Building and running CI/CD pipelines (Bitbucket Pipelines, GitHub Actions, or GitLab CI)
• Operating data pipelines and integration flows built on Glue, Lambda, Step Functions, and EventBridge
• Working with containerised/compute platforms - Amazon EKS and EC2
• Monitoring, alerting, and performance optimisation via CloudWatch
• Supporting production stability - issue resolution and continuous improvement of operational practices
• Mentoring and upskilling internal engineers to embed sustainable, long-term ownership

What We're Looking For

• Minimum 5 years' hands-on AWS engineering experience, with a genuine platform/infrastructure focus
• Strong, proven experience with Terraform as primary infrastructure-as-code tool
• Hands-on experience operating data pipelines on AWS (Glue, Lambda, Step Functions, EventBridge, S3, Athena)
• Experience with EKS and EC2, and CI/CD tooling
• Comfortable owning production reliability - monitoring, alerting, incident response
• Python (nice-to-have, not required)
• AWS certifications (Solutions Architect, Developer, Data Engineer)