Principal Site Reliability Engineer
Role details
Job location
Tech stack
Job description
In this role you will work across product, platform, and operations teams to ensure our systems are reliable, observable, and resilient, even at scale., * Define and enforce SLOs, SLIs, and error budgets across critical services
- Crafting and implementing a cloud infrastructure and tooling strategy
- Work across our Org to level up SRE practices
- Help implement robust observability metrics, logs & traces using our observability tool
- Guide the team in building automated, self-healing systems
- Own and evolve our incident response processes, including on-call practices and post-mortem culture
- Mentor engineers across the org on best practices in reliability, operational readiness, and scalable infrastructure
- Drive Infrastructure as Code (IaC) using Terraform, Kubernetes, CloudFormation and GitOps practices
- Collaborate closely with security, DevOps, and software teams to ensure compliance, scalability, and operational excellence
- Evaluate and introduce tools, patterns, and practices that improve the performance and reliability of our SaaS platform
Requirements
Do you have experience in Terraform?, We are seeking a Principal Site Reliability Engineer who will be a senior technical leader focused on scaling and hardening our AWS- and Kubernetes-based infrastructure., This role combines hands-on technical capability with strategic vision, helping us build a world-class reliability culture and a robust engineering foundation for growth. We're looking for someone who has technical expertise, is a great communicator and enjoys collaborating across multiple teams., * Demonstrable experience leading SRE transformations
- Deep hands-on expertise with Kubernetes (EKS preferred) in production environments
- Strong experience with AWS core services (EC2, EKS, RDS, S3, ALB/NLB, IAM, CloudWatch, etc.)
- Expert in Infrastructure as Code using tools such as Terraform, with knowledge of GitOps workflows
- Strong background in observability: metrics, visualization, logging, and tracing
- Understanding of automation, SDLC, CI/CD pipelines, deployment automation, and blue/green or canary releases
- Proven experience with incident management, disaster recovery planning, root cause analysis, and post-incident reviews
Benefits & conditions
- Hybrid working - 1+ days a week in the London office
- Wellbeing: Sanctus Coaching, Virtual fitness sessions, Wellbeing webinars, Annual Wellbeing day
- Subsidised Gym Membership
- Private Medical Insurance (including Dental and Vision) and Life Assurance
- 25 days holiday (increasing to 30 days at a rate of 1 extra day per year)
- Summer Fridays (half-day Fridays for the months of July and August)
- Employer pension contribution of 5% of your gross salary, if you contribute a minimum of 3%
- Season ticket Loan
- Cycle to Work Scheme
- Annual Discretionary Bonus
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