Senior Database Administrator & Solutions Architect at Vennote Technologies Limited

Engagement Type: Consultancy / Full-Time
Client Sector: Telecommunications

Role Overview

• Lead a comprehensive Database Environment Assessment for a major Nigerian telecommunications provider.
• You will audit, optimize, and architect large-scale, mission-critical MongoDB, PostgreSQL, and Oracle deployments to ensure maximum performance, security, and high availability (HA) in a high-traffic Telco environment.

Key Responsibilities

• Infrastructure & Linux Performance: Audit replica sets, sharding strategies, and storage engines (e.g., WiredTiger). Leverage deep Linux/Unix system knowledge to diagnose OS-level bottlenecks, disk I/O, and resource utilization.
• Project Management & Delivery: Manage end-to-end assessment workflows, set project milestones, manage technical deliverables, and align cross-functional teams to meet deadlines.
• Security & Regulatory Compliance: Conduct gap analyses on RBAC, encryption (at-rest/in-transit), and audit logging to align with NDPR and Telco regulatory standards.
• Data Modeling & Architecture: Review schema designs and indexing to handle millions of concurrent subscribers and Call Detail Record (CDR) processing efficiently.
• Capacity Planning & Disaster Recovery: Build a 12–24 month infrastructure growth roadmap and validate cross-region failover and backup/restore protocols.
• Executive Stakeholder Reporting: Translate technical insights into strategic "State of the Database" presentations and roadmaps for C-suite stakeholders.

Required Qualifications

• Experience: 8+ years in DBA and Database Architecture, with 5+ years specializing in MongoDB, PostgreSQL, and Oracle.
• Linux Administration: Hands-on expertise in Linux/Unix operating systems, shell scripting, and containerized deployments (Kubernetes/OpenShift).
• Project Management: Proven ability to manage complex technical projects, track deliverables, and run multi-phase database assessment lifecycles.
• Telco Domain Expertise: Track record supporting high-volume, low-latency, "Telco-grade" data environments.
• MongoDB Mastery: Strong expertise in MongoDB 6.0/7.0+, Ops Manager, Cloud Manager, and performance tools (mongostat, mongotop, Profiler).

Preferred Qualifications:

• MongoDB Certified DBA, Oracle Certified Professional, or AWS/Azure Solutions Architect certifications.
• Certified PMP, PRINCE2, or Agile Scrum Master credentials.
• Familiarity with Nigeria Data Protection Regulation (NDPR) requirements.
• Experience with ELK Stack (Elasticsearch, Logstash, Kibana) for centralized log monitoring.