Sunday Ezeilo Email & Phone Number

London, Gb

Wilmington, Delaware, United States

● Developed APIs from the ground up, driving a 350% increase in new users within 2 months through a streamlined fiat-to-crypto conversion process.● Successfully migrated a legacy application to TypeScript, enhancing test coverage and API documentation.● Re-architected the API for B2B use, enabling enterprise voucher generation and increasing monthly transactionsby 600%.● Integrated payment gateways for bank transfers across various processors, boosting success rates and… Show more ● Developed APIs from the ground up, driving a 350% increase in new users within 2 months through a streamlined fiat-to-crypto conversion process.● Successfully migrated a legacy application to TypeScript, enhancing test coverage and API documentation.● Re-architected the API for B2B use, enabling enterprise voucher generation and increasing monthly transactionsby 600%.● Integrated payment gateways for bank transfers across various processors, boosting success rates and reducingpayment failures by 95%.● Led the implementation of user KYC and onboarding APIs, streamlining virtual bank account creation.● Integrated Mobile Money API to support businesses in Ghana, facilitating a successful launch.● Migrated APIs to a serverless platform, optimizing system performance, stability, and scalability.● Co-developed APIs for issuing digital wallets and virtual USD cards, enabling seamless international transactionsfor Nigerian users.● Coordinated product development, mentored junior developers, maintained API documentation and supportedboth business and internal teams.Technologies and frameworks used: Node.js, JavaScript, TypeScript, Express.js, MongoDB, Go, PostgreSQL, Vercel, AWS (Lambda, S3, SQS, SNS, API Gateway, CDK, DynamoDB, EventBridge), Kafka, RabbitMQ, Redis. Show less

Toronto, Ontario, Canada

● Conducted comprehensive reviews of MERN stack code submissions by candidates.● Provided detailed feedback using Git, GitHub, and Airtable to improve code quality.● Actively participated in team meetings to help candidates refine their coding skills and develop innovative HRsolutions.Technologies and frameworks used: Node.js, Express, PostgreSQL, MongoDB, Redis, and ReactJS.

Kaduna, Nigeria

● Contributed to the development of academic and e-learning applications.● Led the creation and deployment of a comprehensive biometric attendance system, including hardware andsoftware components for students and staff.● Co-authored scientific and technological research publications.● Collaborated with educators to design software development curricula for students.● Led the development of an online temperature data logger to monitor and log temperature variations in the… Show more ● Contributed to the development of academic and e-learning applications.● Led the creation and deployment of a comprehensive biometric attendance system, including hardware andsoftware components for students and staff.● Co-authored scientific and technological research publications.● Collaborated with educators to design software development curricula for students.● Led the development of an online temperature data logger to monitor and log temperature variations in the foodsupply chain management sector using embedded hardware.Technologies and frameworks used: NodeJS, ExpressJS, TypeScript, ReactJS, Python, SQL, Raspberry Pi, STM32F series MCU, OpenCV. Show less