David Omotola

1. Software Engineer — Paysure Paynode

2026 – Present

• Contributed to backend development of a digital banking platform supporting account management, payments, savings products, and branch banking operations.

• Designed and implemented branch cash-management infrastructure including vault setup, vault cash-in/out, vault-to-teller transfers, teller cash returns, and branch liquidity reporting.

• Built teller operations services supporting teller-point lifecycle management, staff assignment, OTC cash deposit/withdrawal processing, and teller cash-position reporting.

• Implemented maker–checker approval workflows for high-risk operational actions including vault balance adjustments, teller-point creation, and high-value teller withdrawals.

• Developed payment orchestration services supporting own-account, intra-bank, and interbank transfers, beneficiary management, scheduled transfers, and transaction history.

• Implemented account security and operational controls including transaction limits, account freeze/closure workflows, MFA enforcement, and fraud reporting flows.

• Delivered backend services for savings and investment products including fixed deposits, interest accrual processing, maturity workflows, and breakage handling.

• Worked extensively with Java, Spring Boot, MyBatis, PostgreSQL, and ledger-based accounting models to ensure accurate and auditable financial transactions.

2. Backend Software Engineer — Paysure Revco (Paygov)

2024 – Present

• Architected and developed a government revenue collection and settlement platform using Java 17, Spring Boot 3, PostgreSQL, and MyBatis in a modular multi-module architecture.

• Built multi-channel payment ingestion pipelines integrating Paydirect (Interswitch), bank middleware virtual accounts, and POS payment networks with real-time webhook processing.

• Designed a wallet and settlement engine supporting multi-party ledger management and automated settlement routing to third-party payout middleware.

• Implemented invoice lifecycle management including invoice creation, Paydirect XML validation, dynamic virtual account generation, and payment reconciliation.

• Developed KYB/KYC verification workflows including document case management, approval pipelines, and encrypted document storage using AWS S3 and KMS.

• Built a fine-grained RBAC system with scoped permissions (Tenant / Global / System), JWT authentication, and MFA using TOTP.

• Implemented operational observability using Micrometer, Prometheus, and Spring Boot Actuator.

• Managed database schema evolution through Flyway migrations and optimized high-frequency read performance using Caffeine caching.

3. Backend Engineer — Paysure VAS Bill Payment Service

2023 – Present

• Designed and implemented a Spring Boot microservice for Value Added Services (VAS) bill payments.

• Integrated multiple third-party providers (Sochitel, Shago, iRecharge) with dynamic provider routing and failover capabilities.

• Supported payment services including airtime, mobile data, cable TV (DStv, GoTV, StarTimes), electricity (9 DISCOs), betting services, JAMB payments, and internet services.

• Implemented a provider selection engine allowing hot-switching between providers per service type without service downtime.

• Built resilient request handling and transaction processing logic to ensure reliable bill payment execution across providers.