Senior Database Administrator & Solutions Architect

Vennote Technologies Limited is a technology company building robust, scalable digital solutions that power businesses. We specialize in Enterprise Applications, Managed Services, and Project Management,delivering technology solutions that help businesses run more efficiently and scale with confidence. We are recruiting to fill the position below:

Job Title: Senior Database Administrator & Solutions Architect

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