Site Reliability Engineer

Primis; Greater London; Hybrid; GBP 120,000 - 160,000; Full time

Benefits offered by this job

Hybrid working

Competitive base salary

Annual bonus

Job summary

Primis in London is seeking a Principal Site Reliability Engineer to lead the growth of our Google Cloud estate. This hybrid role offers 1-2 days in the office and a chance to influence infrastructure strategy across a fast-growing SaaS platform.

You will mentor a global SRE team, design scalable systems on GCP/AWS, and drive best practices in security, cost management, and reliability for a high-availability, 24/7 service.

Qualifications

• Strong hands-on GCP experience running production workloads at scale.
• Production Kubernetes, ideally GKE.
• Terraform, ideally with the GCP provider.
• GCP networking: VPC, load balancing, CDN
• Automation skills in Python, Go or TypeScript
• Experience on a large 24/7 SaaS platform
• A track record of mentoring and getting teams aligned on technical decisions
• AWS experience, BigQuery or Dataflow, GCP security and IAM, cloud cost management, or AI/ML infrastructure.

Responsibilities

• Design, build and run scalable, secure infrastructure across GCP and AWS
• Lead greenfield builds for new applications and bring existing infrastructure onto common patterns
• Solve cross-region, cross-account and cross-cloud problems in networking, identity and data movement
• Raise GCP capability across a global SRE team through mentoring and clear documentation
• Shape technical direction through design reviews and architecture proposals

Skills

GCP expertise

Kubernetes (GKE)

Terraform

Python/Go/TypeScript

24/7 SaaS experience

Mentoring/leadership

Cloud networking & security

Tools

GKE

Terraform

GCP

AWS

BigQuery

Job description

Principal Site Reliability Engineer (GCP) - London

Hybrid: 1-2 Days per week in office

UK Citizenship/Settled Status/ILR Required

I’m working with a fast-growing global SaaS company whose AI-driven data and workflow platform is used by leading organisations across international trade.

They’re hiring a Principal SRE to lead the growth of their Google Cloud estate. GCP is central to the company’s AI strategy, so this is a high-impact role with real influence over where the platform goes next.

What you’ll do

• Design, build and run scalable, secure infrastructure across GCP and AWS
• Lead greenfield builds for new applications and bring existing infrastructure onto common patterns
• Solve cross-region, cross-account and cross-cloud problems in networking, identity and data movement
• Raise GCP capability across a global SRE team through mentoring and clear documentation
• Shape technical direction through design reviews and architecture proposals

What they’re looking for

• Strong hands-on GCP experience running production workloads at scale
• Production Kubernetes, ideally GKE
• Terraform, ideally with the GCP provider
• GCP networking: VPC, load balancing, CDN
• Automation skills in Python, Go or TypeScript
• Experience on a large 24/7 SaaS platform
• A track record of mentoring and getting teams aligned on technical decisions

AWS experience, BigQuery or Dataflow, GCP security and IAM, cloud cost management, or AI/ML infrastructure.

• Senior individual contributor role with real leadership scope and no line management
• Flexible hybrid working from a great London office
• Competitive base salary plus bonus
• An exciting time to join, with AI and GCP top of the leadership agenda