Lead Platform Engineer

JR United Kingdom; Croydon; On-site; GBP 70,000 - 100,000; Full time

Job summary

A fast-growing SaaS company seeks a Lead Platform Engineer to own and scale its Azure infrastructure. This strategic role allows influence over architectural decisions within a collaborative product team, ensuring robust, scalable, and secure cloud solutions. Ideal candidates have deep Azure expertise and a passion for mentoring, ready to impact a growing platform used by thousands.

Qualifications

• Strong experience with Azure and infrastructure automation.
• Ability to design and deliver scalable cloud infrastructure.
• Mentorship experience and skills to uplift engineering practices.

Responsibilities

• Lead the design and delivery of cloud infrastructure that's reliable and secure.
• Collaborate with development and product teams to align on architectural decisions.
• Influence the cloud infrastructure strategy and mentoring team members.

Skills

Azure

Infrastructure as Code

Security principles

Cost optimisation

Performance tuning

Tools

Terraform

Application Insights

Azure Monitor

Prometheus/Grafana

GitHub

Job description

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We’re working with a profitable, fast-growing SaaS company that’s looking for a Lead Platform Engineer to take ownership of its Azure infrastructure and play a central role in scaling a platform used by thousands of customers.

This is a strategic technical position for someone who enjoys working in complex, cloud-native environments and wants to help shape the long-term direction of platform engineering within a collaborative, high-performing product team.

Why this role?

• You’ll be joining a company with a mature Azure ecosystem and strong engineering standards
• You’ll have real influence over architectural decisions, and cloud infrastructure strategy
• You’ll work alongside experienced engineers who value autonomy, clean code, and continuous delivery

The technical landscape:

• Infrastructure as Code (Terraform)
• Monitoring and Observability (Application Insights, Azure Monitor, Prometheus/Grafana)
• GitHub for version control, and a modern SDLC with automated testing and security baked in

What we’re looking for:

• Someone who can lead the design and delivery of reliable, scalable, and secure infrastructure
• Deep experience with Azure and infrastructure automation
• Strong understanding of security principles, cost optimisation, and performance tuning in cloud environments
• Collaborative approach and ability to work cross-functionally with development, architecture, and product teams
• Mentorship skills and a desire to uplift platform engineering practices across the organisation

This is a fantastic opportunity for a lead-level engineer who wants to do more than just maintain systems, you’ll help evolve a platform that's already proven but still growing fast.