Senior AWS Engineer/Platform Engineer |

4 weeks ago

London, United Kingdom Burns Sheehan Full time

Senior Platform Engineer - Developer Platform / Internal Tooling
#London - Hybrid (Very flexible, weekly, fortnightly or even x1 day per Month)
#AWS, Terraform, Python/Go, CI/CD, Backstage

Here at Burns Sheehan, we’re working with a high-growth FinTech that uses data and technology to modernise one of the biggest but most outdated areas of global finance. Their platform is used by some of the world’s leading investment banks, asset managers, and law firms, and with recent funding they're continuing their Tech expansion.

They’re now looking for a Senior Platform Engineer to join their growing team, focused on building a world-class developer experience and enabling a strong DevOps culture across engineering. You’ll be developing tools, infrastructure, and the Internal Developer Platform that help engineers ship faster, more securely, and with confidence.

Designing and building reusable IaC modules (Terraform/Serverless)
Managing AWS multi-account environments and improving cloud security best practices
Building and maintaining CI/CD templates to enable rapid, reliable deployments
Working on internal open-source projects that enhance the developer experience

Strong experience with AWS (ECS, EC2, Lambda, VPC, IAM, Route53, CloudFront, S3, RDS)
Comfortable working with Python, Bash, or Go
Monitoring and alerting tools (Prometheus, CloudWatch, Grafana, OpenTelemetry, etc.)
Passionate about developer tooling, DevOps culture, and improving engineering workflows
Any experience in Fintech or with public APIs would be a bonus

Senior Platform Engineer - Developer Platform / Internal Tooling

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