Jesse Okoronkwo

• Architected and shipped a multilingual EdTech platform (Next.js, React Native/Expo, Neon PostgreSQL) from concept to production, scaling to 300+ active users within 2 months of mobile launch. • Engineered backend API optimisations — refactoring N+1 queries and introducing Redis caching — slashing average response latency by 35% and server resource consumption by 20%. • Drove a cloud media migration to Cloudinary, eliminating bottlenecks in audio-visual delivery and cutting media latency by 40% while sustaining 99.9% asset uptime. • Automated CI/CD pipelines with GitHub Actions, compressing deployment cycles from 10 minutes to under 3 and enabling zero-downtime releases across iOS, Android, and web. • Integrated multi-currency payment infrastructure (Stripe Subscriptions & Connect, Paystack, Apple IAP), automating recurring billing, affiliate payouts, and webhook validation with 100% transaction accuracy. • Maintained 99.6% crash-free session rate across iOS and Android by instrumenting real-time observability with Sentry, Expo EAS, Vercel Insights, and PostHog — insights that reduced inactive-user churn by 12%. • Established engineering documentation standards and semantic versioning protocols, cutting new-developer onboarding time by 50%+ and improving release consistency across the team.

• Developed and maintained backend APIs powering Legends of Mitra, a blockchain gaming platform supporting 100,000+ registered users and real-time on-chain transactions. • Integrated smart contract logic via Web3.js and Caver.js, enabling secure NFT asset tracking and in-game cryptocurrency transactions with full on-chain transparency. • Optimised API throughput and server concurrency to reduce request latency by 25% during peak game sessions with 100,000+ simultaneous players. • Implemented Jest-based automated test suites achieving 85% code coverage, cutting production bug frequency by 30% and improving release confidence. • Monitored application health via server logs and analytics dashboards, proactively resolving bottlenecks to maintain 99.8% platform uptime.

• Built and maintained SEO-optimised web platforms for logistics and professional-services clients using Next.js, TypeScript, and Node.js, improving organic search performance for 5+ client sites. • Refactored frontend rendering logic, boosting Core Web Vitals scores and reducing page load times by 32% across client portfolios — directly improving client SEO rankings. • Integrated REST APIs between internal systems and client tools, unifying data pipelines and eliminating cross-platform data inconsistencies. • Contributed to C#/.NET backend services for internal data-handling tools, demonstrating cross-stack versatility in Microsoft-stack environments. • Implemented GitHub Actions build automation, enabling same-day production deployments and improving release reliability for all client engagements.

• Designed scalable backend architecture using Python, Node.js, and PostgreSQL, defining modular service boundaries and data-flow contracts that positioned the product for rapid post-MVP iteration. • Authored database schema and indexing strategies that optimised query performance and enforced structural consistency during the MVP build phase. • Defined OAuth 2.0 and JWT-based authentication and authorisation patterns, establishing a secure multi-role access foundation for the platform. • Produced end-to-end system design blueprints, ERDs, and API specifications — accelerating external developer onboarding and aligning the engineering team on architectural standards. • Planned CI/CD environment configuration via GitHub Actions, including automated testing policies and branching strategies to enforce delivery discipline from day one.