Senior Database Administrator & Solutions Architect

Senior Database Administrator & Solutions Architect

Vennote Technologies Limited is a well-established ICT company with experience spanning over two decades in enterprise solutions using best of breed products in very large IT deployments around the world. Vennote Technologies Limited has certified Skilled Technical resources delivering world class implementation and support services through the use of best p...

Senior Database Administrator & Solutions Architect

• Job Type Contract , Hybrid
• Qualification BA/BSc/HND , Professional Certificate
• Experience 8 years
• Location Lagos
• Job Field Data, Business Analysis and AI

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.

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