We are seeking an experienced **Database Administrator** to manage and optimize on-premise **Oracle Autonomous Database (Oraas)** , **MongoDB** , and **Big Data** systems, with a focus on **migrating** these databases to private cloud solutions such as **AWS** **Database Services** . **Key Responsibilities:** + **Manage and optimize** on-premise databases ( **Oraas** , **MongoDB** , **Big Data** ). + **Lead database migrations** to **AWS** and **GDP Database Services** , ensuring minimal downtime and data integrity. + Implement **high availability** , **disaster recovery** , and **performance tuning** for both on-premise and cloud environments. + **Monitor and manage** cloud resources in **AWS** , ensuring scalability, cost-effectiveness, and security. + Develop **backup/recovery strategies** and ensure compliance with security standards. + Automate database management tasks to improve operational efficiency. + Collaborate with internal teams and stakeholders to ensure successful cloud migrations and integrations. **Qualifications:** + Excellent communication and problem-solving skills. + Proven experience with **Oracle Autonomous Database** , **MongoDB** , and **Big Data** systems. + Strong background in **migrating databases** to **AWS** and **GDP** . + Expertise in **high availability** , **disaster recovery** , **performance tuning** , and **cloud integration** . + Proficiency in **PL/SQL** , **NoSQL** , and cloud resource management. ------------------------------------------------------ **Job Family Group:** Technology ------------------------------------------------------ **Job Family:** Applications Development ------------------------------------------------------ **Time Type:** Full time ------------------------------------------------------ **Most Relevant Skills** Please see the requirements listed above. ------------------------------------------------------ **Other Relevant Skills** For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ _Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._ _If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi (https://www.citigroup.com/citi/accessibility/application-accessibility.htm)_ _._ _View Citi’s_ _EEO Policy Statement (https://www.citigroup.com/global/eeo-aa-policy)_ _and the_ _Know Your Rights (https://www.eeoc.gov/sites/default/files/2023-06/22-088\_EEOC\_KnowYourRights6.12ScreenRdr.pdf)_ _poster._ Citi is an equal opportunity and affirmative action employer. Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.