# Onyedika Ndumanya

> Full Stack Developer • Angular • TypeScript . Nest.js . Java
Spring Boot • Flutter • React Native

Location: United States, United States
Profile: https://flows.cv/onyedika

Passionate software engineer recognized consistently for performance, excellence and contributions to success in software projects. Strengths in coding and testing backed by about Seven years of commercial experience . Enthusiastic and eager to contribute to team success through hard work, attention to detail and excellent organizational skills. Motivated to continuously learn and grow.

## Work Experience
### Senior Software Engineer @ Commercial Bank
Jan 2023 – Present | Doha, Qatar
Collaborated with backend engineers to integrate APIs, ensuring seamless communication between the Retail Internet Banking mobile application and server-side components.

Implemented performance optimization techniques to improve app speed, responsiveness, and overall user experience.

Proactively identified and resolved issues through systematic debugging and troubleshooting, ensuring application stability and reliability.

Embraced Agile methodologies, participating in sprint planning, daily stand-ups, and retrospectives to enhance team collaboration and project delivery efficiency.

Conducted and participated in regular code reviews, promoting a culture of code quality and knowledge sharing within the development team.

### Senior Software Engineer @ Nomba
Jan 2022 – Jan 2023 | Nigeria
Contributed to the development of a business banking application using Flutter, ensuring a seamless and high-quality user experience across both iOS and Android platforms.

Prioritized and implemented security best practices, incorporating encryption and secure authentication mechanisms to safeguard sensitive financial information.

Developed key features, including fund transfers, bill payments, and real-time notifications, tailored to meet the specific needs of business users.

Collaborated closely with product managers, QA engineers, and stakeholders throughout the development lifecycle, ensuring alignment with project goals and timelines.

### Senior Software Engineer (Remote) @ Hydra Innovation
Jan 2020 – Jan 2022 | London Area, United Kingdom
Developed cross-platform mobile solutions using Flutter, React Native, and Angular, deployed to 50,000+ users globally

Built microservices architecture supporting mobile applications with 99.8%
uptime
Led migration project from legacy monolithic system to microservices,
improving system performance by 60%

Implemented real-time features using WebSockets and message queuing
technologies like Apache Kafka

Collaborated with distributed teams across 3 time zones, demonstrating strong
cultural adaptability

Designed and implemented RESTful APIs consumed by both mobile and web
applications

### Senior Software Developer @ Union System Limited
Jan 2018 – Jan 2020
Developed enterprise software solutions tailored to client requirements, enhancing operational efficiency.

Leveraged advanced technology to streamline business processes across financial institutions.

Collaborated with business analysts to design and develop high-value applications for financial services.

Created a comprehensive international and local trade platform, TRADEX, for Zenith Bank.

Built a migration tool to seamlessly transfer transactions and static data from Zenith Bank's legacy system to their new infrastructure.

Engineered integrations with external systems, including the Nigerian Customs Service (NCS), FINASTRA Trade Innovation (TI), and Zenith Bank’s core banking system, Phoenix.

Addressed and resolved technical challenges for various projects, achieving the highest customer satisfaction rating across all software solutions delivered.

### Software Engineer @ Union System Limited
Jan 2016 – Jan 2018
Developed in-house applications, including an Issue Tracker, E-Commerce application, and Task Management system using Spring MVC, Hibernate ORM, and MySQL.

Applied Agile development methodologies and practiced Test-Driven Development (TDD) using the JUnit framework and Mockito for unit testing and mocking.

Maintained and refactored the codebase to resolve bugs, optimize performance, and improve overall efficiency.

### Technical Support Assistant @ Accra Institute of Technology
Jan 2014 – Jan 2016
Exhibited strong troubleshooting skills, leading to the timely resolution of computer hardware failures and damages.

Provided regular updates on job status and progress, ensuring clear communication with stakeholders.

Documented procedures, tools, and manuals to support company-provided hardware and equipment, facilitating future troubleshooting and maintenance.

Installed and performed minor repairs on hardware and peripherals, following design specifications and installation instructions.


## Education
### Bachelor of Science (B.Sc.) in Information Technology
Kwame Nkrumah University of Science and Technology, Kumasi
Jan 2013 – Jan 2016


## Contact & Social
- LinkedIn: https://linkedin.com/in/onyedika-ndumanya-53633412a

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Source: https://flows.cv/onyedika
JSON Resume: https://flows.cv/onyedika/resume.json
Last updated: 2026-03-23