Stabilising and modernising infrastructure in a rapid growth fintech

The challenge

A fast-growing fintech operating across multiple domains was experiencing performance and security challenges. Rapid growth had outpaced the underlying infrastructure.

This caused:

  • High infrastructure costs

  • Slow deployments

  • Poor visibility of systems

  • Unmanaged security risks

How we solved it 

Fixing security first, we: 

  • Introduced secrets management.

  • Updated the incident reporting processes and ownership.

  • Created transparent and easily accessible documentation and templates.

  • Ensured internal stakeholders had prioritisation and control.

Improving slow deployments: 

Many programming languages were in use, which increased complexity. We introduced a single, standard way to build and deploy services Which included:

  • A bespoke infrastructure as code framework using Terraform. 

  • FinOps practices for Infrastructure cost control.

  • Migration of services to Google Cloud using Kubernetes. This allowed us to: 

    • Run disposable, repeatable environments.

    • Rebuild systems automatically.

    • Stop “nurturing” long-lived servers.

Approach

Gear Train provided:

  • A clear, concise infrastructure roadmap 

  • Experienced cloud infrastructure engineers 

  • Transparent technology leadership focused on data-driven decision making

  • A calm, professional environment where people did their best work

Outcome

In addition to implementing controlled, secure operations instead of reactive firefighting

  • Cloud costs dropped by 40% per month.

  • 80% faster shipping of features to production.

  • 75% improved incident response and recovery times.

  • Improved cybersecurity and ownership.

  • Standardised and scalable infrastructure

  • Increased engineering productivity through predictable engineering workflows.