Playing musical instruments
Chukwuma Ohuabunwa
Lagos
Summary
Results-driven Senior Software Engineer with 5+ years of experience delivering scalable and high-performance solutions in finance, health, and logistics industries. Proficient in Java backend development, specializing in system architecture, API integrations, and compliance-driven feature implementation. Skilled in optimizing application performance, building secure authentication systems, and processing large-scale transactional data. A collaborative team leader with a track record of mentoring engineers, meeting tight deadlines, and driving impactful software solutions.
Overview
5
5
years of professional experience
2015
2015
years of post-secondary education
Work History
Senior Backend Engineer
Moniepoint Inc
06.2022 - Current
- USSD Banking Channel: Led the team responsible for managing the USSD channel for feature phone users. This currently serves over 1.5 million unique daily customers and processes more than 2 million USSD sessions per day generating over N400 million (average) in gross revenue per month.
- Customer Onboarding Systems: Designed and developed onboarding solutions that successfully onboarded over 3 million new customers; collecting, processing and storing KYC and KYB data according to Government rules and regulations while adding new requirements as features, ensuring alignment with government policies.
- Biometric Authentication Integration: Led the integration of secure facial recognition authentication systems, starting with SmileID and later transitioning to FaceTec to mitigate spoofing attacks.
- Scalable Notification System: Engineered a robust, multi-channel notification platform supporting over 500 million transactions, allowing users to customize communication preferences via email, SMS, push notifications, and WhatsApp.
- High-Performance Transaction Statement Service: Developed an asynchronous statement generation service using Javalin, processing and preparing detailed statements for over 100 million transactions while ensuring scalability and reliability.
- Proactive Monitoring & Maintenance: Implemented monitoring and alerting mechanisms to detect and address issues proactively, ensuring high application availability. Performed root cause analysis to resolve production incidents, minimizing downtime and user impact.
- Team Leadership & Mentorship: Conducted comprehensive code reviews, provided actionable feedback, and mentored junior team members to foster professional growth and maintain high-quality code standards.
Software Engineer
Reliance Health
12.2020 - 05.2022
- Software Solution Design & Implementation: Partnered with senior engineers to design and implement scalable, high-performant medication service, ensuring alignment with business objectives and technical standards.
- Microservices Migration: Led the migration of legacy monolithic consultation application to a microservices architecture, reducing system complexity by over 50%, enhancing scalability, and significantly improving maintainability.
- Third-Party Integration: Successfully integrated third-party tools, including Agora and later Twilio, into call and chat services, significantly enhancing functionality.
- Incident Management & Performance Optimization: Played a key role in investigating and resolving production incidents, minimizing service disruptions, and optimizing system performance to ensure high availability and reliability.
- Technical Communication & Collaboration: Effectively communicated project updates, technical insights, and challenges to cross-functional teams and stakeholders, fostering collaboration, transparency, and alignment on project goals.
Software Engineer(Java Backend Engineer)
Obinwanne Hospital
10.2020 - 11.2021
- Worked with cross-functional team members to build and maintain the hospital management system which includes medication management, consultation scheduling and customer notification
- Maintained various backend applications and improved performance using various optimization strategies
Education
Bachelor of Technology - Chemical Engineering
Ladoke Akintola University of Technology
Ogbomoso, Oyo StateSkills
Languages (Javascript, Go, Java)
Kubernetes
Observability/Monitoring (New Relic, Grafana)
Relational Database (MySQL)
Springboot/Spring
Docker
Frontend Framework (React, Angular)
Java Build Tools (Maven, Gradle)
Interests
Making clothes and shoes (Male)
Timeline
Senior Backend Engineer
Moniepoint Inc
06.2022 - Current
Software Engineer
Reliance Health
12.2020 - 05.2022
Software Engineer(Java Backend Engineer)
Obinwanne Hospital
10.2020 - 11.2021
Bachelor of Technology - Chemical Engineering
Ladoke Akintola University of Technology