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Senior Database Administrator & Solutions Architect

Vennote Technologies Limited
Lagos (Hybrid) Posted Oct 12, 2026
Hybrid

About this role

Job Posting

Location: Lagos (Hybrid)

Employment Type: Contract

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.

Application Closing Date

30th December, 2026.

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