.About us!Our open source charts and commercial libraries are used by tens of thousands of financial sites across the planet, including whales like: CME, Refinitiv, Investopedia, Crunchbase, Binance, Bitcoin.Com and many others. We're also one of the world's biggest websites (#61 to be exact, according to Alexa Rankings), visited by 100s of millions of people every year. So if you're interested in finance, chances are you'll have already seen us around the place.Our mission is to help millions of people succeed in life, whatever that means for them, by providing the highest quality information in the smartest way so they can make the best-informed decisions possible. To do this, we're looking for individuals to join a team where product quality means everything, where you'll be given the opportunity to develop your best work, and where the fruits of your labor will be seen by millions of people each and every day.Join our UK teamWe've got people all over the world, but London is where our executives are based. So, if you're looking for a start-up, get stuck-in vibe, but with all the resources and firepower of a major scale-up, then look no further. It's an exciting time to be part of the founding UK team as we continue our growth here.Our tech stack - Work with cutting-edge technologiesWe are using the latest technologies, ensuring our team works on innovative and challenging projects: JavaScript, ReactJS, TypeScript with NodeJS and Python, Django on the backend.Your mission:We are seeking an experienced Principal DevOps Engineer to lead our Kubernetes initiatives. The Kubernetes Infrastructure team is responsible for building and maintaining Kubernetes clusters across on-premises and AWS EKS environments. As Principal Engineer, you'll drive initiatives around scalability, developer experience, security, and observability, working closely with cross-functional teams to ensure a robust, high-performance Kubernetes environment that supports our business needs.Responsibilities:Architect and optimise Kubernetes infrastructure for high availability and scalability.Design and implement autoscaling solutions to manage varying workload demands effectively.Configure and manage Istio service mesh for secure, efficient inter-service communication.Develop and enforce networking policies to enhance security and operational performance.Drive observability, logging, and tracing initiatives to maintain full visibility of cluster and application health.Implement and maintain Helm charts and ArgoCD for automated application deployment and configuration management.Lead cost and capacity planning to ensure efficient resource allocation and operational scalability.Minimum Qualifications:7+ years in DevOps or infrastructure engineering, with 2+ years of deep focus on Kubernetes.Proven expertise in administration of Kubernetes environments with a large number of clusters, including autoscaling and network management.Extensive experience with Istio service mesh