.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 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 technologies We 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 MissionWe are seeking a highly experienced and technically proficient Principal Database Administrator (DBA) to lead the management and optimisation of our database infrastructure. You will design, maintain, and secure large-scale, high-load databases. This role involves driving database strategy, providing technical leadership, and ensuring that our systems are built for high availability, performance, and security.Responsibilities:Oversee the administration, optimisation, and maintenance of various relational and non-relational databases including PostgreSQL, MySQL, Redis, ClickHouse, MongoDB, etc.Design and implement high-availability, fault-tolerant database solutions capable of supporting large-scale, high-load operations.Lead database architecture decisions and work closely with development and operations teams to ensure effective deployment and performance.Ensure robust security measures are in place, including encryption, access control, and comprehensive backup strategies.Conduct performance tuning and optimisation, identifying and eliminating bottlenecks in distributed databases and systems.Provide technical leadership and mentorship to junior DBAs and team members, helping them navigate complex database challenges.Manage and resolve complex database-related incidents, ensuring swift recovery and minimising downtime.Collaborate with cross-functional teams to ensure solutions align with business goals and system requirements