Senior Site Reliability Engineer Job York area,York and North Yorkshire England UK,IT/Tech

Flowcode is seeking a Senior Site Reliability Engineer (SRE) to work on reliability and infrastructure efforts across our platforms. This role will help grow and drive our infrastructure strategy, operational rigor and observability while building and supporting the systems and tooling required to support Flowcode’s continued growth
As an individual contributor within our engineering organization, you will develop and operate scalable cloud infrastructure, establish best practices around deployment and reliability, and partner closely with engineering teams to ensure systems are scalable, resilient and observable
Reliability & Infrastructure
Improve system availability, scalability, and resilience across Flowcode’s platforms
Own key pieces of our EKS-based infrastructure end-to-end
Contribute to incident response and postmortems, turning findings into durable fixes
Support engineering teams with infrastructure questions, escalations, and day-to-day unblocking
Cloud & Platform Engineering
Manage and scale our core AWS footprint (EKS, VPC, RDS) through Infrastructure as Code (Terraform)
Enhance disaster recovery and failover mechanisms to protect mission-critical workloads
Collaborate with product engineering to streamline and optimize internal developer experience
CI/CD & Deployment Automation
Design and scale deployment pipelines using Git Hub Actions
Expand Git Ops practices and tooling through ArgoCD
Facilitate secure delivery with automated validation and progressive rollout strategies
Observability & Monitoring
Oversee and optimize the organization’s monitoring, logging, and alerting infrastructure
Develop high-signal metrics, tracing, and visualization dashboards while minimizing operational noise
Establish and monitor Service Level Objectives for managed platform components

Benefits

Unlimited Vacation
Paid Health Benefits
Employee Stock Options
Custom swag
Lunch stipend & office snacks
Happy hours & team dinner
Team offsites
Parental Leave
Diverse Managers

Experience maintaining and scaling CI/CD automation using Git Hub Actions within collaborative environments
Advanced Terraform or Open Tofu expertise, encompassing module architecture and production state management
4+ years of professional experience across SRE, Dev Ops, or Platform Engineering domains
Hands-on operational experience with Git Ops workflows via ArgoCD and Helm-based deployments
Mastery of core AWS services, specifically EKS, Networking/VPC, RDS, and IAM
Proven track record of leading infrastructure initiatives from initial design through to long-term operation
Background in supporting large-scale distributed systems within high-availability production environments
Ability to author production-grade code in Go or Python alongside robust shell scripting
Adept at navigating interrupt-driven workflows, balancing strategic project delivery with day-to-day operational support
Technical proficiency in Kubernetes, including cluster troubleshooting and managing controllers or CRDs
Exposure to Crossplane or alternative Kubernetes-native solutions for infrastructure provisioning
Deep observability experience utilizing Datadog or Prometheus to engineer SLOs, high-signal dashboards, and intelligent alerting
Practical knowledge of modern secrets management frameworks and implementation
Experience optimizing cluster efficiency through autoscaling technologies such as Karpenter or Cluster Autoscaler