Oluwagbenga Olawolu

Senior Software Engineer at Accrue Wealth Inc

Owned backend services for payment processing workflows, standardizing service structure and error handling to improve reliability and long-term maintainability; designed and operated secure APIs for multiple user types (business clients, internal admins, and payment systems) with robust authentication, authorization, and consistent failure handling; developed core payment infrastructure supporting blockchain-based settlement and web services, with comprehensive automated testing across payment and customer support flows; implemented business account management features, including automated payments, payment method validation, and multi-currency support across 20+ countries; led development of an automated payment scheduling system (daily, weekly, monthly) with validation and conflict-prevention mechanisms, reducing manual payment processing by ~90%.

Back end Engineer at Memecaster

Maintained and evolved core backend services for a production mobile application, focusing on reliability, observability, and operational stability; led backend integration with the Farcaster protocol, enabling social features and decentralized identity support; implemented integration with Polymarket, allowing users to interact with cross-chain prediction markets directly from the mobile app.

Founder / Backend Engineer at Lucidconnect

Implemented an experimental crypto-to-payment protocol using Ethereum and ERC-4337 account abstraction to validate gasless transaction flows; owned backend development of the payment protocol, contributing as backend engineer and protocol researcher alongside frontend and product collaborators; built backend services supporting multi-chain interactions, with PostgreSQL-backed persistence and containerized deployments; extended ERC-4337 smart account stack by implementing smart contract plugins for payment and authorization logic; prototyped a creator-focused NFT minting platform, building backend services and Ethereum smart contracts for minting workflows, metadata storage, and wallet-based ownership.

Lead Backend Engineer at Helicarrier Development Studio

Improved reliability of the order-book match engine by introducing robust error handling, circuit breakers, and automated failover mechanisms for high-availability trading operations; led multi-feature enhancements across trading, wallet, and payment services through well-scoped PRs and design reviews within an established codebase; strengthened backend failure handling and recovery paths to enable safe evolution of production systems without service disruption; optimized performance of critical Go services through profiling, SQL query optimization, and caching strategies to reduce API latency under peak transaction loads; implemented real-time monitoring and alerting using OpenTelemetry to improve observability and incident response.

Back end Engineer at Helicarrier Development Studio

Built internal backend tools supporting OTC trading operations, improving operational workflows and client management; implemented and maintained integrations with external exchanges to expand order-book engine functionality and improve execution reliability; implemented bank integration workflows for deposits and settlements, including controlled automation of bank interaction flows where direct APIs were unavailable.

Back end Engineer at Kawura

Built the API engine to handle core operations for an e-learning platform; built CI/CD pipelines with GitHub Actions to streamline releases and reduce deployment overhead; assisted in user acceptance testing cycles to gather early feedback and validate features.