CYNTHIA NWUME
Mississauga,ON
Summary
Java Software Engineer with 5+ years of hands-on experience designing, building, and optimizing enterprise-grade financial applications, REST APIs, and microservices. Strong background in Spring Boot, API integrations, SQL, testing (JUnit/Mockito), SDLC delivery, debugging, and production support. Adept at collaborating with business analysts, product owners, and cross-functional teams to ship secure, scalable, and compliant banking solutions. Proven success improving system performance, stability, and code quality across high-traffic environments.
Overview
8
8
years of professional experience
Work History
Software Engineer
Numeric Consulting & Solutions
Lagos, Nigeria
01.2021 - 02.2025
- Designed and developed 15+ Spring Boot microservices supporting authentication, transaction processing, and user onboarding.
- Implemented REST APIs consumed by internal banking systems, improving system-to-system communication and reducing integration failures by 35%.
- Improved application performance by 30% through optimized database queries and caching strategies.
- Created automated JUnit + Mockito test suites achieving 80% code coverage for major modules.
- Performed debugging, RCA, and production issue resolution, reducing average incident resolution time by 25%.
- Collaborated with business analysts and product teams to translate requirements into technical design and system architecture diagrams.
- Strengthened compliance by implementing secure coding standards and aligning systems with internal bank technology policies.
Java Developer
FinEdge Payments (Contract | Fintech)
London, Uk
01.2019 - 12.2020
- Developed core modules for a payment reconciliation system handling 500K+ daily transactions.
- Built and maintained REST endpoints, reducing data sync latency by 40%.
- Participated in full SDLC: planning, design, development, testing, deployment, and documentation.
- Integrated third-party APIs for KYC, fraud detection, and customer identity verification.
- Improved test stability by implementing structured test cases and automated integration tests.
Junior Java Developer - Intern
SoftPro Technologies
Lagos Nigeria
06.2017 - 12.2019
- Contributed to backend development of internal applications using Java and Spring frameworks.
- Supported debugging, bug fixes, and enhancements across multiple modules.
- Created SQL stored procedures improving reporting accuracy and query performance.
- Documented APIs and contributed to internal knowledgebase articles.
Education
Ontario College Diploma - Computer Programming
Sheridan College Institute of Technology And Advanced Learning
Oakville08-2025
Skills
- SDLC Management
- Agile/Scrum Methodologies
- Technical Documentation (Specs, Diagrams, API Docs)
- Debugging & Root Cause Analysis
- System Design & Architecture Contributions
- Problem-Solving & Analytical Thinking
- Cross-Functional Collaboration (POs, BAs, QA)
Technical Skills
Java | SQL | JavaScript | JUnit | Mockito | CI/CD | Postman | Microservices | Git Maven | Jenkins | Docker | PostgreSQL | Spring Framework (Spring Boot, Spring MVC, Spring Data) | REST API Development
Timeline
Software Engineer
Numeric Consulting & Solutions
01.2021 - 02.2025
Java Developer
FinEdge Payments (Contract | Fintech)
01.2019 - 12.2020
Junior Java Developer - Intern
SoftPro Technologies
06.2017 - 12.2019
Ontario College Diploma - Computer Programming
Sheridan College Institute of Technology And Advanced Learning