Nana Agyemang Duah

Nana Agyemang Duah-| - Professional Summary Full-stack Developer with over 5 years of experience designing, building, and maintaining scalable web applications and APIs. Proven ability to work independently and collaboratively in remote, asynchronous environments. Skilled in modern frameworks and tools including Laravel, React, FastAPI, and Wazuh, with strong expertise in DevOps practices and agile project management tools like Git. Committed to delivering secure, high-quality solutions aligned with ISO 27001 standards. Skills Languages: Php, Java, Python, JavaScript, TypeScript, SQL Technologies & Tools: Laravel, Fat-free, Spring Boot, Angular, ReactJS, Wazuh, Databases: MySQL, PostgreSQL, MSSQL DevOps & Security Tools: Wazuh, GLPI, Firewall Management, System Monitoring Business Intelligence & Reporting: PowerBi Other Technical Skills: API Integration, Payment Gateway Integration, SMS Gateway Integration. Work Experience Wigal Vision, Ghana ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Feb 2021 - Present Software Engineer • Led development of a financial application used by 5+ SUSU companies, managing over millions in transactions annually. Integrated Wigal’s payment gateway APIs and Wigal’s SMS notification systems, improving payment processing efficiency by 86%. • Led the development of a gamified online quiz platform with over 5,000 registered students, distributing financial rewards, boosting engagement and platform retention. •Led the development of a SaaS-based school management system, enabling schools to efficiently manage core operations such as student records, attendance, fee tracking, and reporting, improving administrative efficiency and reducing manual workload. • Developed a custom WordPress plugin for Wigal’s payment gateway integration, adopted by 50+ clients, reducing integration time from 3 days to under 4 hours. • Integrated Nsano’s airtime/data APIs into Wigal’s payment infrastructure, enabling seamless processing of 200,000+ airtime/data transactions annually with 99.9% system uptime. • Designed and implemented secure API workflows to handle thousands of transactions monthly, achieving zero major security incidents post-implementation and ensuring full ISO 27001 compliance. • Spearheaded a successful ISO 27001:2022 transition audit within 6 months, making Wigal Vision the second company in Ghana to achieve the new certification with a 100% audit pass rate. Technologies: Laravel, HTML, Bootstrap, Javascript, Fat-Free, Angular, Fast Api, Wazuh, GLPI, PQSQL, MySQL. Freelancer, Ghana ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Sept 2019 - Mar 2021 Software Developer • Developed a work-study management application for Valley View University, streamlining application processing, timesheet tracking, and approvals for over 500+ students. • Built a school management system for Integrity International School, digitizing admissions, fee management, attendance, and academic reporting, improving administrative efficiency by 40%. • Designed and deployed a POS system for Millicent Store, supporting inventory management, sales reporting, and payment processing, reducing stock discrepancies by 25%. Technologies: c#, CodeIgniter, MSSQL, MySQL. Progress Savings & Loans, Ghana​ ​ ​ ​ ​ ​ ​ ​ Jul 2018 - Aug 2019 IT Officer • Diagnosed and resolved software/hardware issues, performing critical system upgrades and backups, maintaining 99% system uptime. • Managed network infrastructure, including firewalls, routers, and switches, ensuring optimal performance and security. • Developed an internal ticketing system, streamlining customer service workflows and improving issue resolution times by 35%. • Implemented data recovery protocols and enforced technical security policies to safeguard customer data, achieving compliance with local regulations. Technologies: Networking (Cisco), Linux, Windows Server, Firewall Management, Database Management, IT Support Tools ​ ​ Valley View University, Ghana​​ ​ ​ ​ ​ ​ ​ ​ Aug 2016 - Aug 2018 Lab Assistant • Assisted faculty in delivering undergraduate Computer Science courses including Data Structures, Networking Fundamentals, and Database Management. • Provided one-on-one tutoring and support for 200+ students, improving lab assignment success rates by 30%. • Led hands-on lab sessions covering system setup, network configuration, and basic cybersecurity practices. • Designed, installed, and maintained academic server infrastructure, achieving 99.8% uptime across labs. • Built and configured network systems supporting campus-wide lab connectivity, enhancing student access speeds by 20%. • Maintained the Student Representative Council (SRC) website and managed institutional email systems for improved communication. • Diagnosed and resolved hardware/software issues, reducing system downtime by 25%. • Administered firewall security settings and monitored access logs to maintain compliance with campus IT security policies. Technologies: Linux, Windows Server, MySQL, PHP, Networking Tools (Cisco Packet Tracer), Web Hosting Management​ Education Valley View University Ghana ​​ ​ ​ ​ ​ ​ ​ ​ B.S.c. in Computer Science ​ ​ ​ ​ ​ ​ ​ ​ ​ Jan 2014 - Jul 2018 ​ CGPA: 3.12/4 Relevant Coursework: Object Oriented Programming, Databases, Discrete Maths, Data Structures and Algorithms, Operating Systems, Computer Networks. Some Project Works • The Household Shop – E-commerce Platform : Online retail platform for household essentials, serving customers across Ghana with real-time inventory management and secure checkout features. • BTS Rental - Car Rental Platform : Developed a full-featured car rental application for BTS Rental, operating in North Dakota, USA, supporting online reservations, fleet management, and customer communication. • Cloudtech Stores — Digital Data Reselling Platform: Ghana-based e-commerce platform for purchasing and reselling mobile data plans, integrating mobile money payments and automated SMS notifications.