Lead, Platform Engineer

Quantum; Greater London; Hybrid; GBP 110,000 - 170,000; Full time

Benefits offered by this job

Private Health Care (Bupa)

Hybrid Working (3 days in office)

Travel Insurance

Competitive Base Salary

Company Bonus Scheme

AI Subscription (Claude / ChatGPT /Gem

Market-Leading Training Programme

Recognition & Reward Scheme

Annual Company Conference

Regular Happy Hours & Team Lunches

Free Coffee, Drinks & Snacks

Job summary

Quantum is hiring a Lead Platform Engineer to own our Google Cloud platform and drive production readiness. You will design, build and operate scalable infrastructure, lead a small team of engineers, and shape platform standards across engineering teams.

You will manage security, observability, and compliance while enabling product teams to ship rapidly. The role blends hands-on engineering with leadership, mentoring, and roadmap responsibility.

Qualifications

• Significant experience as a platform, cloud or infrastructure engineer, including senior/lead roles.
• Deep, hands-on experience with GCP services (GKE, Compute Engine, Cloud Functions, Cloud Storage, BigQuery).
• Strong Terraform skills and IaC in production.
• Experience building and running CI/CD pipelines (GitHub Actions).
• Solid Docker and Kubernetes experience, including networking and ingress.
• Scripting in Python, Go, or Bash.
• Observability tooling and incident response experience.
• Experience mentoring engineers and interest in line management.
• Clear written and spoken English; able to explain technical trade-offs.

Responsibilities

• Design, build and run scalable, secure infrastructure on GCP, defined in Terraform.
• Own networking and IAM design (VPCs, ingress, encryption).
• Record architecture decisions and keep them visible to the team.
• Collaborate with software engineers to deliver the right infrastructure at the right time.
• Work with data engineers on BigQuery infrastructure and data pipelines.
• Own CI/CD pipelines in GitHub Actions and ensure repeatable deployments.
• Build self-service tooling so product engineers can ship and run services.

Skills

Platform engineering

GCP

Terraform

CI/CD

Docker

Kubernetes

Python/Go/Bash

Observability

Incident response

Mentoring

English communication

Tools

Terraform

GitHub Actions

BigQuery

Docker

Kubernetes

Job description

Our Company
At Quantum, we connect global brands with high-intent consumers. We turn intent into action and complexity into clarity.

Our Mission is clear, to help smarter, faster buying decisions. Our vision, to be the world's most used digital comparison service, delivering value and simplicity to millions.

We drive growth through data-driven affiliate marketing built for performance from day one. Every campaign is measurable, optimised in real time, and designed to scale.

With in-house tech, full-stack analytics, and a compliance-first mindset, we give our partners an edge. We drive confident decisions and growth in regulated and high-growth sectors. We've helped ambitious brands grow faster, smarter, and globally.

The Role

We're hiring a Lead Platform Engineer to own our Google Cloud platform and the route our engineers take to production. You'll spend most of your time designing and building, and you'll manage one infrastructure engineer from day one.

As the business grows we expect the platform team to grow with it, and we'd like you to lead that. You'll report to the Director of Engineering.

What you'll work on

• Completing the rollout of the next version of our platform while the current one keeps serving live traffic.

• Moving acquired sites, which currently deploy in their own ways, onto a common build and release path.

• Strengthening edge protection and resilience so the platform absorbs traffic spikes and hostile traffic.

• Giving every team clear visibility of what's deployed, when, and how often.

• Defining the route from prototype to production, including the checks a service needs before it goes live.

What you'll be responsible for

Platform and infrastructure

• Design, build and run scalable, secure infrastructure on GCP, defined in Terraform.

• Own networking and IAM design, including VPCs, ingress through Traefik, and encryption of data at rest and in transit.

• Make and record architecture decisions for the platform, and keep them visible to the wider team.

• Work with the software engineering team to ensure we're delivering the right infrastructure at the right time.

• Work with our data engineers on the infrastructure behind BigQuery and our data pipelines.

Delivery and developer experience

• Own our CI/CD pipelines in GitHub Actions and make deployments quick and repeatable.

• Build self-service tooling so product engineers can ship and run their own services with confidence.

Reliability and security

• Set up monitoring, logging and alerting using Cloud Monitoring, Cloud Logging, Prometheus and Grafana.

• Lead root cause analysis after incidents and see the fixes through.

• Build security into the delivery process early, and track and address vulnerabilities across the estate.

• Keep the platform in line with our regulatory obligations and internal policies.

Leadership

• Line manage and develop our infrastructure engineer, with regular one-to-ones and a clear growth plan.

• Set platform standards and help the iGaming and Rewards tech leads adopt them.

• Shape the platform roadmap with the Director of Engineering and plan how the team grows.

• Hire into the platform team as it expands.

About you

• Significant experience as a platform, cloud or infrastructure engineer, including time as the senior or lead engineer on a team.

• Deep, hands-on experience with GCP, including GKE, Compute Engine, Cloud Functions, Cloud Storage and BigQuery.

• Strong Terraform skills and experience running infrastructure as code in production.

• Experience building and running CI/CD pipelines, ideally in GitHub Actions.

• Solid Docker and Kubernetes experience, including cluster networking and ingress.

• Scripting and programming ability in Python, Go or Bash.

• Experience with observability tooling and with leading incident response.

• Experience mentoring engineers, and a real interest in line management.

• Clear written and spoken English, and comfort explaining technical trade-offs to people outside engineering.

Nice to have

• TypeScript or JavaScript experience.

• ArgoCD or other GitOps tooling.

• Experience in a regulated industry such as iGaming, fintech or health.

• Experience consolidating infrastructure after an acquisition or major migration.

• Experience building or growing a platform team.

What You'll Get

• Private Health Care (Bupa)

• Hybrid Working (3 days in office)

• Travel Insurance

• Competitive Base Salary

• Company Bonus Scheme

• Paid for AI Subscription (Claude / ChatGPT / Gemini)

• Market-Leading Training Programme

• Recognition & Reward Scheme

• Annual Company Conference

• Regular Happy Hours & Team Lunches

• Free Coffee, Drinks & Snacks