Designed and implemented scalable web applications using Java Spring Boot for backend services and modern front-end frameworks (React/Angular), built robust RESTful APIs and event-driven services leveraging Kafka, and deployed on AWS (EC2, S3, RDS, Lambda, DynamoDB) in containerized environments using Docker and Kubernetes. Led microservices architecture, applied design patterns (Factory, Singleton, Observer, Strategy) to maintain scalability and reduce technical debt. Strengthened application quality by enforcing unit, UI, and integration testing with JUnit, Mockito, Selenium, and Cucumber; automated release cycles via Jenkins and GitHub Actions. Integrated SonarQube and Splunk into workflows for monitoring and code quality, improving operational visibility. Mentored junior developers through code reviews and technical workshops, boosting team proficiency and adoption of modern Java/React practices.

Senior Software Developer at NTOPROG DRC

July 1, 2022 - April 1, 2023

Developed and maintained a scalable enterprise platform using Java, Spring Boot, React.js, and AWS; built microservices and serverless functions with Node.js, AWS Lambda, DynamoDB, and S3; implemented real-time event-driven architecture with Apache Kafka; designed and optimized RESTful APIs integrated with MySQL, PostgreSQL, Oracle, and MongoDB; deployed Spring Boot microservices on Kubernetes, ensuring auto-scaling, load balancing, and fault tolerance; established CI/CD pipelines with Jenkins and GitHub Actions; improved QA with unit and integration testing, raising test coverage; contributed to front-end features using React.js to enhance usability and customer-facing workflows; actively participated in Agile ceremonies and collaborated with distributed teams to ensure timely delivery of features.

Software Engineer at Kinshasa, DRC

January 1, 2019 - May 1, 2022

Designed and implemented financial applications and autopay solutions using Java, Spring Boot, React.js, and AWS; built microservices architectures with Spring Boot and Node.js, ensuring modularity, scalability, and high availability; created and integrated BI reports using SSIS, Crystal Reports, and SSRS to enable data-driven decision making; developed RESTful APIs and SOAP services for third-party integrations; optimized databases (Oracle, MySQL, PostgreSQL) via query tuning and schema design; implemented CI/CD pipelines with Jenkins, Docker, and Git, and deployed to AWS (EC2, S3, RDS, Lambda) with auto-scaling; mentored junior developers and collaborated with cross-functional Agile teams.