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Sr. Database Engineer/Administrator at Echo Base. Echo Base Global is a digital finance company creating an end-to-end crypto ecosystem built on Web3 technology. Echo Base drives interoperability across its products to create an integrated, user-first experience that simplifies the complexity of interacting with digital assets. Est. 2025.. We are looking for a Senor  PostgreSQL Database Administrator and Engineer who will be responsible for managing and tuning high-availability PostgreSQL databases associated with heavily loaded web and mobile applications as well as providing recommendations for improvements and optimization for current and future design. You’ll work closely with DevOps, BI team,  product managers, backend developers, mobile teams, and blockchain engineers to deliver high-quality, scalable, and secure web solutions.. What will you do:. . Work closely with the BI team and help maintain and develop more metrics insights . . Continuously evaluate and improve monitoring practices, introducing enhancements that boost platform scalability, reliability, and performance.. . Develop and proactively review the monitoring of PostgreSQL database production. . Participate in database design and data modeling and provide recommendations for improvement or optimizations. . Provide query/index optimizations. . Ensure database availability and performance. . Mentor other engineers in developing efficient SQL queries. . Prepare automation related to database deployment and migrations. . Assist in developing data migrations. . Optimize AWS RDS and help reduce cost. . . 3+ years of experience in quality assurance or software testing.. . Experience testing mobile apps (iOS, Android), web applications, or backend APIs.. . Proficiency in at least one testing framework or tool.. . Examples include Selenium, Appium, Postman, or similar platforms.. . Experience writing and executing manual and automated test cases.. . Familiarity with scripting languages such as Python, JavaScript, or Kotlin is a plus.. . Understanding of CI/CD pipelines and automated testing integration.. . Experience with GitLab CI/CD workflows preferred.. . Knowledge of RESTful API testing tools and processes.. . Ability to test backend systems for data consistency, performance, and error handling.. . Recommended Skills:. . Familiarity with performance testing tools such as JMeter or Gatling.. . Experience with cross-platform testing frameworks like Detox or Flutter testing tools.. . Knowledge of mobile development frameworks or platform-specific tools (Xcode, Android Studio).. . Understanding of blockchain or cryptocurrency systems, although not required.. . Company Location: Bolivia, Plurinational State of.