Database admin (Oracle, SQL) - Brussels, Belgium

Infosys; Brussel Hoofdstad; Sur place; EUR 90 000 - 120 000; Plein temps

Résumé du poste

Infosys seeks a Lead Consultant for Database administration to manage and support enterprise‑grade databases across Oracle, Sybase, MSSQL, PostgreSQL, DataStax Cassandra and Couchbase. You will ensure security, high availability, and performance in both on‑premises and hybrid environments.

Responsibilities include installation, configuration, performance tuning, backups, and storage management, with strong collaboration across IT teams to optimize enterprise workloads.

Qualifications

• Extensive hands‑on experience in enterprise database administration across multiple platforms.
• Relevant certification or equivalent industry‑recognized database certification.
• Experience with on‑premises and cloud/hybrid environments.

Responsabilités

• Manage and support enterprise‑grade databases across multiple technologies.
• Install, configure, and perform tuning, backup and recovery, and storage management across relational and NoSQL platforms.
• Ensure databases are secure, highly available, and performance‑optimized in on‑premises and hybrid environments.
• Collaborate with application, infrastructure, and cross‑functional teams to support enterprise workloads.

Formation

Database certification

Outils

Oracle

Sybase ASE

Microsoft SQL Server

PostgreSQL

DataStax Cassandra

Couchbase

Description du poste

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

Role – Lead Consultant

Technology – Database admin

Location – Brussels, Belgium

Job Description

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

Wanted: Global Innovators to Help Us Build Tomorrow’s Enterprise

• 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.

Qualifications

• 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.

Preferred

• 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.


• Extensive experience in database performance tuning and monitoring, utilizing tools such as:


• 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 (pg_dump, 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