Backend Engineer · Full-Stack Developer · AI/ML Engineer · System Designer

🎓 Student at Rwanda Coding Academy  |  💼 Software Engineering Intern @ CodVeda Technologies (2025) 📍 Kigali, Rwanda  |  📬 niyobyoseisaac@rca.ac.rw  |  🌐 Open to Remote & Internship Opportunities

I am a motivated software engineering student with a deep focus on backend engineering building scalable, secure, and production-ready server-side systems. I specialize in the Java/Spring ecosystem, RESTful API design, relational databases, and CI/CD pipelines. My long-term goal is to become a backend-focused cybersecurity engineer with expertise in secure software design, systems programming, and network security.

I thrive working close to how systems actually operate — from database internals and API architecture to deployment pipelines and access control.

• ⚙️ Backend Engineering — Java (Spring Boot · Spring Security · Spring MVC), NestJS, Node.js, RESTful & GraphQL APIs
• 🗄️ Databases — PostgreSQL, MySQL, MongoDB, Redis — schema design, query optimization, transactions
• 🔁 CI/CD & DevOps — Git, Jenkins, GitHub Actions, Docker, Linux, Nginx
• 🔐 Cybersecurity — Spring Security, JWT/OAuth2, network security, cryptography, binary exploitation
• 🤖 AI / ML — Model training and deployment with TensorFlow, PyTorch, scikit-learn; CV & NLP
• 🌍 Social Impact — Building digital tools that improve education access in Rwandan boarding schools

This is where I spend most of my time. Building robust, secure, and scalable server-side systems.

• Spring Boot — Rapid development of production-grade REST APIs and microservices
• Spring Security — JWT authentication, OAuth2 flows, role-based access control (RBAC), session management
• Spring MVC — MVC architecture, request handling, interceptors, and filter chains
• Hibernate / JPA — ORM, entity relationships, lazy loading, custom queries, transactions

• NestJS — Modular, scalable backend architecture with TypeScript, guards, interceptors, and pipes
• Express — Lightweight REST APIs, middleware pipelines, and route management

• PostgreSQL — Primary relational DB: advanced queries, indexing strategies, stored procedures, JSONB
• MySQL — Relational data modeling, joins, transactions, replication fundamentals
• MongoDB — Document-based storage for flexible, schema-less data
• Redis — Caching layers, session storage, pub/sub messaging

• RESTful API design with versioning, pagination, and proper HTTP semantics
• GraphQL schemas, resolvers, and query optimization
• API documentation with Swagger / OpenAPI

• Git — Branching strategies (Git Flow, trunk-based), rebasing, conflict resolution, PR workflows
• Jenkins — Pipeline as Code (Jenkinsfile), automated build/test/deploy pipelines, job scheduling
• GitHub Actions — CI/CD workflows, automated testing, container image builds and pushes
• Docker — Containerizing Spring Boot and Node.js apps, multi-stage builds, Docker Compose

Areas of Focus: Computer Vision · NLP · Deep Learning · Model Deployment · Transfer Learning

• Spring Security (JWT, OAuth2, RBAC, CSRF protection)
• Network security fundamentals & packet analysis
• Cryptography — symmetric, asymmetric, and hashing algorithms
• Binary exploitation & low-level memory concepts
• Secure software design principles

I'm actively looking to collaborate on:

• ⚙️ Backend systems — Spring Boot microservices, REST/GraphQL APIs, NestJS applications
• 🔐 Secure backend development — Spring Security, authentication systems, CTF challenges
• 🗄️ Database-heavy projects — PostgreSQL/MySQL schema design, query optimization, data pipelines
• 🤖 AI/ML applications — real-world impact, model deployment with backend integration
• 🎓 EdTech — digital tools for underserved communities in Rwanda and beyond

"If it works, don't touch it. But if you do, make sure you understand why it worked."

⭐ From Isaac