Hi, I'm Léonel
I build scalable web & mobile solutions, and explore AI for smarter tech.
7+
Years Experience
30+
Projects Completed
20+
Satisfied Clients
Currently crafting solutions in
Based in
Douala, Cameroon
About Me
Software engineer passionate about creating solutions at the intersection of web and data
My journey
I'm Léonel Gaëtan KAHAMENI, a 27-year-old computer scientist and fullstack developer based in Douala, Cameroon, my vibrant home base. Passionate about the transformative power of technology, I've developed expertise in building modern web applications and exploring the exciting field of data science and artificial intelligence, fields critical for future advancements. My technical journey began in 2017 with mobile development, which gave me a strong foundation in creating truly user-centric applications with highly intuitive interfaces.
My journey spans frontend, backend, database modeling, and server deployment across diverse industries including e-commerce, fintech, and enterprise solutions, consistently delivering value. With over 7 years of professional experience, I've mastered various technology stacks and methodologies that enable me to tackle complex problems, always aiming for innovative and scalable outcomes. I believe in leveraging technology to create solutions that address real-world challenges facing African communities, particularly in areas of financial inclusion, education, and healthcare accessibility, driving positive societal impact.
Core competencies
Fueled by years of dedicated hands-on experience and an unwavering commitment to continuous learning in the ever-evolving tech landscape, I have cultivated robust expertise across four pivotal technical domains. These interconnected competencies are the bedrock of my professional toolkit, empowering me to architect and deliver truly comprehensive solutions, meticulously guiding projects from initial concept through to successful deployment. Each specialized area signifies not only a profound depth of technical knowledge but also a proven capacity for practical, real-world implementation, thereby solving complex challenges effectively and efficiently.
Software Engineering
Expert in fullstack development, creating scalable solutions with modern frameworks and architectures. Proficient in designing RESTful APIs, implementing microservices, and developing responsive user interfaces that prioritize accessibility and performance. Experienced in test-driven development and agile methodologies.
Data Science & AI
Applying machine learning and statistical models to uncover insights and build intelligent systems. Skilled in data preprocessing, feature engineering, and model evaluation. Experience with supervised and unsupervised learning techniques, natural language processing, and computer vision applications tailored for business needs.
Database
Designing and optimizing database systems for performance, scalability and data integrity. Experienced with relational databases (PostgreSQL, MySQL) and NoSQL solutions (MongoDB). Proficient in query optimization, indexing strategies, and implementing data migration plans with minimal downtime for production systems.
DevOps & Server Administration
Managing infrastructure, CI/CD pipelines, containerization and cloud deployments. Skilled in automating deployment processes using GitHub Actions and Jenkins. Experience with Docker, Kubernetes, and cloud platforms (AWS, GCP) to create resilient, scalable infrastructure that supports high-availability applications.
Personal details
Name
Léonel Gaétan KAHAMENI
Age
27 years
Location
Douala, Cameroon
Education
Master of Engineering in Data Science & AI
Interests
Book a consultancy call
Need expert guidance on your tech project? I offer personalized consultancy services in:
Software architecture & system design
Web & mobile application development
Data science & AI implementation
Server administration & infrastructure management
My Skills
Technical expertise across the full software development lifecycle
Data tools & databases
Professional Experience
Work history across diverse industries and technologies
Lead Developer
Leading the development of web applications using React and NestJS, while coordinating a team of developers. Established CI/CD pipelines to improve deployment efficiency and implemented microservices architecture to enhance system scalability. Introduced code quality standards and mentored junior developers to reduce production bugs and improve overall code quality.
Fullstack Developer
Designed and developed an e-commerce platform and transit management solution to serve growing user base. Integrated secure payment gateways to handle online transactions reliably. Implemented route optimization algorithms to improve delivery efficiency and reduce costs. Created a responsive mobile app using React Native with positive user feedback.
Backend Developer
Developed secure API systems for a growing fintech platform. Implemented financial transaction processing with a focus on accuracy and reliability. Worked on PCI DSS compliance by implementing security protocols and encryption standards. Contributed to a fraud detection system to help identify and prevent fraudulent transactions.
Fullstack Developer
Designed and implemented enterprise resource planning (ERP) systems for clients in manufacturing, healthcare, and retail sectors to improve operational efficiency. Developed inventory management systems to help reduce stockouts and manage costs. Created business intelligence dashboards with KPI tracking and data visualization to support data-driven decision making. Collaborated with teams to gather requirements and deliver solutions tailored to client needs.
Backend Developer
Built backend systems for an e-commerce platform using Grails framework and MySQL to support growing user base. Optimized database queries and implemented caching strategies to improve page load times and server capacity. Developed an inventory management module that synchronized with supplier APIs to help manage stock levels and streamline procurement. Implemented automated testing to reduce bugs and improve the release cycle.
Education & Qualifications
Continually advancing my knowledge in computer science and data engineering
Master of Engineering in Data Science & AI
Advanced program focusing on building expertise in machine learning algorithms, neural networks, and AI applications. Developed skills in processing large datasets, creating predictive models, and implementing computer vision solutions. Gained hands-on experience with industry-standard tools and frameworks for data analysis and visualization.
Bachelor of science in computer science
Comprehensive program covering core computer science concepts with emphasis on algorithm design and analysis. Studied advanced software architecture patterns and distributed computing principles. Participated in open-source projects and gained practical experience in network configuration and storage optimization techniques.
Bachelor of technology in software engineering
Comprehensive program covering both frontend and backend development technologies. Learned software engineering methodologies including Agile and Scrum. Completed practical projects in web application development, database design, and data analysis. Gained experience in project planning, requirements gathering, and team collaboration.
Diploma of collegial studies
Intensive program focused on building native Android and iOS applications. Learned mobile UI/UX design principles and responsive interface implementation. Developed skills in local data storage, API integration, and offline functionality. Completed multiple practical mobile app projects from concept to deployment on app stores.
Featured Projects
Handpicked projects demonstrating technical expertise across various domains
Academy Twentyone
Site/Blog & EventsSite/Blog for cameroonian billionaire Raoul Ruben Njionou's Academy Twenty One, for organizing events and presenting his company.
Sekure
Fintech PlatformWebsite for a Cameroonian fintech app specializing in bill payments and virtual credit card issuance.
Lamtrac
ERP PlatformPlatform for internal management of dealerships and customers for a tractor manufacturing company.
Get In Touch
Have a project in mind or want to explore opportunities? I'd love to hear from you!