Lead Consultant Database admin (Oracle, SQL) Brussels, Belgium

• Infosys Database admin Managed Infrastructure Services digital infrastructure at Infosys.

• In this role you will manage and support enterprise-grade databases across multiple technologies including Oracle Sybase Microsoft SQL Server PostgreSQL DataStax Cassandra and Couchbase ensuring they are secure highly available and performance-optimized in both on-premises and hybrid environments.
• You will handle day-to-day database administration including installation configuration performance tuning backup and recovery and storage management across relational and NoSQL platforms.

• Extensive hands-on experience in enterprise database administration with strong demonstrable expertise in Oracle Sybase Microsoft SQL Server PostgreSQL DataStax Cassandra and Couchbase.
• Relevant certification or equivalent industry-recognized database certification.

• Proven hands-on experience administering and managing enterprise database platforms including Oracle Sybase ASE Microsoft SQL Server PostgreSQL DataStax Cassandra and Couchbase covering installation configuration patching upgrades and ongoing maintenance.
• Strong understanding of database architectures and core concepts across RDBMS and NoSQL systems including tablespaces datafiles filegroups schemas ASM Cassandra keyspaces Couchbase buckets indexing strategies query optimization and transaction/log management.

• Oracle (AWR ADDM ASH)
• SQL Server (Query Store Profiler)
• PostgreSQL (EXPLAIN ANALYZE)
• Cassandra and Couchbase monitoring utilities
• Execution plan analysis and SQL/query optimization across platforms

Strong expertise in backup and recovery solutions including:

• Oracle RMAN (full/incremental archive log management)
• SQL Server native backup/restore
• PostgreSQL logical/physical backups (pgdump WAL archiving)
• Cassandra snapshots and replication strategies
• Couchbase backup and restore tools

In-depth knowledge of high availability and replication technologies including:

• Oracle RAC Data Guard GoldenGate
• SQL Server Always On Availability Groups Log Shipping
• PostgreSQL streaming and logical replication
• Cassandra distributed clustering and replication
• Couchbase Cross Data Center Replication (XDCR)
• Experience integrating databases with enterprise applications and identity systems including LDAP/Active Directory for secure authentication and role-based access control.
• Proven ability to manage databases in highly available scalable and hybrid environments (on-premises and cloud platforms such as OCI AWS Azure) ensuring resilience and optimal
• performance.
• Working knowledge of ITIL processes including Incident Problem Change and Request management with experience in documentation CMDB updates and SLA compliance.
• Strong troubleshooting and root cause analysis skills addressing performance issues locking/blocking deadlocks wait events replication lag and connectivity problems across multiple database technologies.
• Excellent communication and collaboration skills with the ability to work effectively with application infrastructure and cross-functional support teams.

Nice to Have

• Experience working with cloud database platforms including Oracle Cloud Infrastructure (OCI) AWS and Azure supporting Oracle SQL Server PostgreSQL Cassandra and Couchbase workloads in hybrid and cloud-native environments.

Knowledge of replication data integration and synchronization technologies such as:

• Oracle GoldenGate
• SQL Server Replication & Always On
• PostgreSQL logical replication
• Cassandra multi-datacenter replication
• Couchbase XDCR (Cross Data Center Replication)

Familiarity with database monitoring and administration tools including:

• Oracle Enterprise Manager (OEM)
• SQL Server Management Studio (SSMS) and monitoring features
• pgAdmin and PostgreSQL monitoring utilities
• DataStax OpsCenter
• Couchbase Web Console
• Experience in database upgrade migration and consolidation projects across heterogeneous environments including both relational (Oracle Sybase MSSQL PostgreSQL) and NoSQL platforms (Cassandra Couchbase).
• Understanding of advanced performance and scalability features including:
• Partitioning parallel execution indexing strategies (RDBMS)
• Data modeling sharding and distributed architecture (Cassandra Couchbase)
• Exposure to high-performance engineered systems such as Oracle Exadata or equivalent high-throughput distributed environments.
• Proficiency in automation and scripting using Shell Python or PowerShell to streamline DBA operations and administrative tasks across platforms.
• Experience with DevOps practices including CI/CD pipelines Infrastructure as Code (IaC) and automated database deployment strategies.
• Familiarity with security auditing and compliance standards including:
• Transparent Data Encryption (TDE) and equivalents
• Role-based access control (RBAC)
• Auditing and regulatory compliance across database platforms
• Exposure to multi-tenant and modern database architectures including:
• Oracle Multitenant (CDB/PDB)
• SQL Server contained databases
• PostgreSQL schemas
• Cassandra keyspaces
• Couchbase bucket-based multi-tenancy
• Working knowledge and hands-on exposure to multiple database technologies (Oracle Sybase MSSQL PostgreSQL DataStax Cassandra Couchbase) with the ability to support and optimize cross-platform database ecosystems

The job entails sitting as well as working at a computer for extended periods of time. The role may require participation in rotational shifts on-call duty and incident-response engagement during critical network events. Should be able to communicate by telephone email or face to face.

About Us
Infosys is a global leader in next-generation digital services and consulting. We enable clients in more than 50 countries to navigate their digital transformation. With over four decades of experience in managing the systems and workings of global enterprises we expertly steer our clients through their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills expertise and ideas from our innovation ecosystem.

All aspects of the hiring process and employment at Infosys are based on merit competence and performance. We are committed to embracing diversity and creating an inclusive environment for all employees. Infosys is proud to be an equal opportunity employer