Software Engineer at Facere.ai

Implemented Liquibase migration scripts for PostgreSQL schema versioning and updates; designed and deployed Flowable BPMN XML workflow definitions for business process automation; developed scheduled polling jobs to monitor email inboxes and trigger workflows; created AI-powered prompt scripts for email content classification, attachment extraction, and data parsing; integrated external client systems via Gateway APIs; automated workflow instantiation based on email content, reducing manual processing significantly; enhanced user experience by automating patient details, appointment scheduling, and SMS notifications.

Software Engineer at Golden Matrix Group Inc.

Developed API Gateway integrating various game providers’ APIs; created player payment services supporting withdrawals, deposits, and rollbacks; developed Node.js and React web applications for internal back office systems; automated report fetching and data reconciliation via Python scripts.

Software Engineer at OPay

Developed API gateway for payment systems supporting bill payments and money transfers; implemented rate limiting, security authentication, and data encryption (MD5, AES, RSA); developed Golang projects for USSD platform, HTML and JavaScript for WAP platform, and React and Node.js for smartphone app embedded pages; authored Gateway API documentation.

Software Engineer at JD.COM

Developed merchant settlement, payment management, reconciliation, and invoicing modules; built Gateway API for third-party merchant connectivity; authored Gateway API documentation.

Software Engineer at Reapal.com

Developed anti-fraud, anti-money laundering, and risk control systems using Drools rule engine templates; created PRM, CRM, and HR systems for web and mobile platforms; wrote instructions for management system use.

Software Engineer at Facere.ai

Implemented Liquibase migration scripts for seamless PostgreSQL schema versioning and updates. Designed and deployed Flowable BPMN XML workflow definitions for business process automation. Developed scheduled polling jobs to monitor email inboxes, fetch messages, and trigger workflow processes. Created AI-powered prompt scripts to classify email content, extract attachments, and parse patient, practitioner, and report data. Integrated external client systems via Gateway APIs, including platforms like SHEXIE, BEST PRACTICE and HALAXY, ensuring reliable interoperability. Automated workflow instantiation based on extracted email content, significantly reducing manual processing. Enhanced user experience by prefilling patient details, scheduling appointments, and automating SMS notifications, reducing manual workload by 99%.

Software Engineer at Golden Matrix Group Inc. (Nasdaq: GMGI)

Developed API Gateway for transaction systems integrating various game providers’ APIs. Created payment services for players including withdrawals, deposits, and rollbacks. Developed Node.js and React web applications for internal back office systems. Automated report fetching via Python scripts and reconciled data in system databases.

Software Engineer at OPay

Developed the API gateway for company payment systems supporting bill payment, money transfers, and merchant payment platforms. Implemented rate limiting, security authentication, and data encryption methods including MD5, AES, and RSA. Used Golang for USSD platform, HTML and JavaScript for WAP platform, and React and Node.js for embedded smartphone app pages. Authored Gateway API documentation.

Software Engineer at JD.COM

Developed modules for merchant settlement, payment management, reconciliation, and invoicing. Built Gateway API to enable third-party merchants to connect with the platform. Authored Gateway API documentation.

Software Engineer at Reapal.com

Developed anti-fraud, anti-money laundering, and risk control systems. Created Drools rule engine templates. Developed PRM, CRM, and HR systems for web and mobile platforms. Authored user instructions for management systems.

Software Engineer (AI Prompt Engineer) at Facere.ai

Contributed to developing Facere Smart Admin, an AI-powered hospital system using Kotlin and Spring Boot, automating patient referrals, correspondence, and routine tasks. Built AI prompt scripts to integrate with modern AI APIs for data extraction, record pre-filling, and workflow automation, enabling one-click doctor approvals and streamlining daily operations. Created AI-powered prompts to classify email content, extract attachments, and parse patient, practitioner, referrer, and other details. Integrated client systems Gateway APIs (SHEXIE, BEST PRACTICE, HALAXY). Implemented Flowable BPMN XML workflow definitions for business process automation. Built scheduled jobs to poll email inboxes, trigger BPMN workflows, and Liquibase migrations for PostgreSQL schema versioning. Enhanced user experience by prefilling patient details, scheduling appointments, and automating SMS notifications, reducing manual workload.

Software Engineer at Golden Matrix Group Inc.

Contributed to building a game platform and payment system using Java and Spring Boot. Integrated third-party game gateway APIs; developed payment services supporting deposits, withdrawals, and rollbacks; built admin system with React to fetch game records and reconciliation data; created Python crawl scripts to retrieve reconciliation data from third-party admin systems when APIs were not provided. Implemented settlements and invoicing logic. Wrote API designs and documentation for external partners. Contributed to settlements for an online shopping platform, with merchant dashboards (Vue.js); implemented reads of MySQL binlog, published changes to Kafka, and updated Elasticsearch for reconciliation. Processed XML reports from authorities to track flows of funds.

Senior Software Engineer at OPay

Contributed to building a payment system using Java and Spring Boot, implementing APIs for both B2C and B2B users. Services included online bill payments, money transfers, and payroll processing. Implemented rate limiting, security authentication including OAuth2 and JWT, data encryption (MD5, AES, RSA). Authored API designs and technical documentation for external clients, ensuring clarity, usability, and reliable integration.

Software Engineer at JD.COM

Software Engineer at JD.COM.

Software Engineer at Reapal.com

Developed Anti-fraud system, Anti-money laundering system, and Risk control systems using Java, Spring and Drools rule engine. Implement Admin system (using EasyUI) for managers to configure the rules. Created HR systems for web and mobile (Kendo UI). Drools rule templates script creation; admin dashboard for risk control system.