.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 team We'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 mission: We are seeking a skilled and experienced Senior Database Administrator (DBA) to join our team. In this role, you will be responsible for the administration, optimisation, and maintenance of our critical databases, ensuring their security, high availability, and performance. You will work closely with development teams to support database-related needs and help design and implement fault-tolerant, high-load solutions. Responsibilities: Administer, optimise, and maintain various relational and non-relational databases including PostgreSQL, MySQL, Redis, ClickHouse, MongoDB, etc. Design and develop fault-tolerant, high-load database solutions. Ensure the security and high availability of all databases by implementing robust backup, replication, and failover strategies. Manage and resolve database-related incidents, minimising downtime and ensuring quick recovery. Conduct regular performance tuning and optimisation to identify and resolve bottlenecks in database operations. Analyse database logs, monitor performance metrics, and diagnose locks, slow queries, and performance issues. Minimum Qualifications: 5+ years of experience in database administration with hands-on expertise in PostgreSQL. Strong knowledge of database configuration best practices, including replication, sharding, and clustering. Strong hands-on experience with running databases in cloud environments, preferably AWS. Proficient in SQL, with experience in automating routine database operations