Staff Database Engineer

Company Description
Visa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable and secure payments network, enabling individuals, businesses and economies to thrive.

When you join Visa, you join a culture of purpose and belonging - where your growth is priority, your identity is embraced, and the work you do matters. We believe that economies that include everyone everywhere, uplift everyone everywhere. Your work will have a direct impact on billions of people around the world - helping unlock financial access to enable the future of money movement.
**Join Visa: A Network Working for Everyone.**

**Job Description**:
**RESPONSIBILITIES**

Primarily the architecture, engineering, deployment and support of NoSQL database technology.

Support Database Platform Engineering in the architecture, development and deployment of NoSQL technologies like Druid, Redislabs, Open source Cassandra, DataStax Cassandra, CouchDB and/or MongoDB/any other NoSQL Technologies in high SLA environments. Support of RDBMS technology will be a plus. This includes, but is not limited to, advanced to expert engineering and implementation of the following:

- Manage, support and maintain database technology and infrastructure, adhering to the architectural guidelines and policies.
- Install, configure, monitor, upgrade and maintain MongoDB and Cassandra databases in production and non-production environments.
- Participate in Database Maintenance and DR activities.
- Provide technical expertise and hands-on support in consolidation and migration of databases to new hardware and platforms.
- Physical implementation of databases, storage structures, high-availability solutions, replication, and disaster recovery solutions.
- Proactive and reactive performance analysis, monitoring, troubleshooting and resolution of escalated Level 2 and Level3 issues.
- Regular database capacity planning related to database growth and system utilization, trend analysis, predictive future database resource requirements, and the structured organized reporting of the same.
- Work closely with other Infrastructure engineering, product development, business operations, and technical operations to ensure delivery of database services within the SLA’s and performance targets.
- Adapt business requirements, model data, and develop database specifications, table and element attributes.
- Participate in the evaluation, selection and implementation of DBA tools to improve the effectiveness of tasks such as performance monitoring and tuning, recovery, and database change management processing.
- Ability to work well as a team and as an individual with mínimal supervision.

**Qualifications**:

- Bachelors/Degree in Computer Science or other technology field is necessary.
- 5-7 years of DBA experience, with Apache Cassandra and DataStax Cassandra, and additionally MongoDB, Redis, Couch DB will be a plus.

Additional information
- Sound knowledge of all UNIX and Cassandra/NoSQL utilities. Troubleshoot database production problems and database connectivity issues.
- Strong knowledge of operating systems, scripting languages, data modeling and business intelligence tools.
- Good interpersonal skills along with effective communication (both written and verbal) skills.
- Demonstrated ability to solve complex systems and database environment issues.
- Demonstrate ability to work in a complex organization to determine business and customer needs, providing the best solution to meet those needs.
- Work experience in a Financial Institute will be preferred.

Additional Information

Visa has adopted a COVID-19 vaccination policy. As a condition of employment, all employees based in Singapore are required to be fully vaccinated for COVID-19, unless a reasonable accommodation is approved or as otherwise required by law.