TL;DR

Lead Site Reliability Engineer (Cloud): Architecting and improving resilient, high-performance cloud-native systems with an accent on SLIs/SLOs, error budgets, and capacity planning. Focus on leading incident response, driving automation, and championing observability across platforms powering health and wellness for millions.

Location: Onsite in London, UK

Company

%hirify_global% is transforming into a product- and platform-led technology organization focused on health and wellness.

What you will do

Architect and improve cloud-native systems with reliability as a first-class principle.
Shape SLIs/SLOs, error budgets, capacity planning, and performance strategies.
Mentor SREs, platform engineers, and developers across the organisation.
Own and lead high-severity incident response, driving meaningful improvements.
Build tools and automation to remove toil and accelerate teams.
Partner with Security, Platform, and Engineering teams to align reliability with security and resilience goals.

Requirements

5–8+ years in SRE, Platform, Cloud Infrastructure, or operational engineering roles.
Hands-on experience architecting and improving large-scale, distributed systems.
Strong coding proficiency in Python, Go, Bash, or similar automation-focused languages.
Expertise with observability stacks: Datadog, Prometheus, Grafana, OpenTelemetry.
Deep AWS experience across services like EC2, EKS, Lambda, VPC, DynamoDB, S3, CloudFront, RDS, IAM, KMS.
Proficiency with Terraform, CloudFormation, or AWS CDK.
Incident response leadership and root-cause analysis expertise.
Excellent documentation and communication skills.

Nice to have

Experience mentoring or leading engineers within SRE or platform teams.
Experience with load testing, stress testing, and chaos engineering.
A passion for uplifting engineering culture through tooling, automation, and reliability-first thinking.

Culture & Benefits

A modern engineering culture built on autonomy, experimentation, and learning.
The chance to create real impact across critical customer and internal platforms.
A collaborative team that values innovation and continuous improvement.
Health Cash Plan & Life Assurance.
Incentive Scheme based on company & personal performance.
Private Medical care & Virtual GP.
25% Colleague Discount with FREE Standard Delivery.
Access to a variety of learning opportunities, including Level 2-5 Apprenticeships.