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NelsonKariuki/README.md

πŸ‘‹ Hi, I'm Nelson Kariuki

πŸš€ About Me

I'm a Full-Stack Software Engineer with a passion for building end-to-end solutions that make an impact. With over 4 years of experience, I've mastered the art of crafting robust backend systems, intuitive front-end interfaces, and seamless mobile experiences. My expertise spans web development, mobile development, machine learning, and cybersecurity β€” because I believe a great engineer should understand the full stack and beyond.

I thrive on solving complex problems, optimizing performance, and writing clean, maintainable code. Whether it's architecting scalable APIs, building cross-platform mobile apps, or securing systems against vulnerabilities, I bring a holistic approach to software development.

When I'm not coding, you'll find me diving into CTF challenges or hunting bugs through bounty programs β€” because security isn't just an add-on, it's a mindset.

πŸ› οΈ Tech Stack & Proficiency

Backend Development

  • Python β€” Flask, FastAPI, Django
  • Java β€” Spring Boot, REST APIs
  • Node.js β€” Express.js
  • Database β€” PostgreSQL, MySQL, MongoDB
  • API Design β€” RESTful APIs, GraphQL

Frontend Development

  • JavaScript / TypeScript β€” React, Next.js
  • State Management β€” Redux, Context API
  • Styling β€” Styled Components, Tailwind CSS

Mobile Development

  • Kotlin β€” Android Native Development
  • Java β€” Android SDK
  • Flutter β€” Cross-platform mobile apps (iOS & Android)
  • React Native β€” Cross-platform mobile development

Machine Learning & AI

  • Python β€” TensorFlow, Scikit-learn, Pandas
  • Data Processing β€” NumPy, Jupyter Notebooks

Cybersecurity

  • Penetration Testing β€” CTF challenges, Bug Bounty Programs
  • Security Tools β€” Wireshark, Metasploit, Burp Suite
  • Secure Coding Practices β€” OWASP Top 10, Encryption, Authentication

DevOps & Tools

  • Version Control β€” Git, GitHub, GitLab
  • Containerization β€” Docker
  • Cloud β€” AWS, Firebase
  • CI/CD β€” GitHub Actions

πŸ’Ό What I Do

  • Backend Development β€” Building scalable, secure, and high-performance server-side applications
  • Mobile Development β€” Creating cross-platform and native mobile apps with Flutter, Kotlin, and React Native
  • Frontend Development β€” Crafting responsive, user-friendly web interfaces
  • Full-Stack Integration β€” Connecting everything from database to UI with clean architecture
  • Machine Learning β€” Integrating AI features into real-world applications
  • Cybersecurity β€” Securing applications and participating in ethical hacking challenges

🧠 My Philosophy

I'm a full-stack engineer in the truest sense β€” I don't just work across the stack, I understand how each layer connects and interacts. I believe in writing code that's not only functional but also scalable, secure, and maintainable. Every project is an opportunity to learn something new and push the boundaries of what's possible.

πŸŽ“ Education & Background

I come from a strong software engineering foundation with expertise in:

  • Full-stack web development (frontend + backend)
  • Mobile development (native + cross-platform)
  • Machine learning and AI integration
  • Cybersecurity and ethical hacking

This diverse skill set allows me to approach problems from multiple angles and deliver comprehensive solutions.

πŸ“Š Languages & Technologies I Work With

Category Technologies
Languages Python, Java, Kotlin, JavaScript, TypeScript, Dart, SQL
Backend Flask, FastAPI, Django, Spring Boot, Node.js
Frontend React, Next.js, HTML5, CSS3, Tailwind
Mobile Flutter, React Native, Android (Kotlin/Java)
Databases PostgreSQL, MySQL, MongoDB, Firebase
ML/AI TensorFlow, Scikit-learn, Pandas, NumPy
DevOps Docker, Git, AWS, CI/CD
Security Penetration testing, OWASP, Encryption

🌍 Let's Connect

I'm always open to new opportunities, collaborations, or just a good tech conversation. Reach out to me through any of these platforms:


⚑ Fun Fact: I'm a freelancer who believes in the power of technology to transform ideas into reality. Whether it's web, mobile, or backend β€” I build it all. Let's create something amazing together.


β€œFull-stack isn't just about knowing both ends β€” it's about understanding the whole.”

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