• Bachelor’s degree in computer science, Engineering, Information Systems or related field.
  

• Relevant certifications are an advantage (e.g., Oracle OCP, Microsoft DP‑300/DP‑900, AWS/Azure database certifications, ITIL).
  

Experience

• 3–7 years hands‑on DBA experience in high‑availability, high‑throughput environments (financial services/telco preferred).
  
• Track record delivering HA/DR, performance tuning, security hardening, and major version upgrades/migrations.
  
• Experience operating in cloud (AWS/Azure) using services such as RDS/Aurora or Azure SQL Managed Instance.
  
• Expertise with at least two engines: PostgreSQL, Oracle, SQL Server, MySQL; familiarity with NoSQL (MongoDB/Cassandra) a plus.
  
• Proficiency in SQL, PL/pgSQL, T‑SQL, PL/SQL; query optimization, indexing, partitioning.
  

• Own the multi‑year database roadmap: engine selection, cloud/on‑prem posture, managed services, and standards.
  
• Design and govern HA/DR architectures meeting defined SLOs, RPO/RTO for Tier‑0 payment systems.
  
• Embed security & compliance by design (PCI DSS, CBN PSB, NDPR, ISO 27001): encryption, segregation, least privilege, logging and retention.
  
• Establish observability strategy (SLOs, error budgets, performance baselines, telemetry).
  
• Plan capacity and cost: licensing optimization, storage tiering, reservations/commitments.
  
• Plan/execute major upgrades and migrations with near‑zero downtime; institute schema versioning (Flyway/Liquibase) in CI/CD.
  
• Implement robust backup & recovery strategies including immutable/WORM copies and quarterly restore drills.
  
• Engineer performance: indexing, partitioning, query tuning, connection management, and workload management.
  
• Harden security: RBAC, PAM/MFA, key management, secrets rotation, audit and access reviews.
  
• Enable data integration: CDC/ETL to analytics, fraud systems, and regulatory reporting with data quality controls.
  
• Maintain vendor relationships and optimize licenses/support contracts.
  
• Provision, configure, and patch databases; manage users/roles; maintain schemas and jobs.