Kavindu Kokila(Kavi Castelo)

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👨‍💻 About Me

I'm Kavindu Kokila, a full-stack software engineer and entrepreneur based in Sri Lanka with over 4 years of experience in building scalable web applications, mobile solutions, and enterprise systems. As Co-Founder and Tech Lead at Talnova, I specialize in SaaS HR Tech innovations, including AI-powered recruitment tools and cloud-native architectures.

• Expertise: MEAN stack, Java-based systems, AI/ML integration, DevOps, and large-scale system design.
• Daily Focus: 12+ hours coding, problem-solving on LeetCode (400+ day streak), and maintaining GitHub contributions (850+ day streak).
• Goal: Achieve full financial independence by 30 through tech innovation and scalable products.
• Passions: AI, DevOps, cloud computing, and mentoring aspiring developers.

Explore my professional portfolio or devfolio for case studies on full-stack development, AI projects, and enterprise solutions. For collaborations in full-stack development, AI-driven apps, or HR tech, let's connect!

$$Innovation = \int\limits_{idea}^{deployment} \frac{impact}{time} \times \Delta execution$$

(Visualizing expertise: True innovation integrates ideas, execution, and impact over time to deliver scalable value.)

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🛠️ Tech Stack

Proficient in modern technologies for building robust, scalable applications.

Programming & Scripting

Frontend Development

Backend Development

Databases & Storage

APIs & Integration

DevOps & Cloud

AI & Data Science

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🚀 Key Projects & Expertise

As a full-stack developer in Sri Lanka, I've delivered high-impact solutions across industries. Highlights include:

• SaaS HR Tech: Co-founded Talnova – Built scalable job boards, HRM systems, ATS tools, and resume builders using MEAN stack and AI integrations.
• Enterprise Applications: Developed POS systems, recruitment platforms, and cloud-native apps with Java/Spring Boot.
• AI & ML Projects: Trained models for data analysis and predictions; e.g., Flappy Bird AI trainer and dynamic code generation in Angular.
• DevOps Pipelines: Automated CI/CD with GitHub Actions, Dockerized microservices on AWS, and monitoring via Grafana.
• Game Development: 2D games in JavaScript Canvas and Godot; console games in C++.

Project highlights:

• advanced-cache-design(33 ⭐): Advanced cache algorithms (LRU, LFU, ARC, TinyLFU) implemented in TypeScript for high-performance system design.

  Tech: TypeScript, Algorithms, System Design

• win-x86-cpp-console-games(19 ⭐): Beginner-friendly C++ console games showcasing fundamentals like pointers and functions—ideal for learning low-level programming.

  Tech: C++, Console Apps, Educational

• assembly-tutorial-x86(6 ⭐): Comprehensive guide to x86-64 assembly on Windows, from setup to basic programs and system calls.

  Tech: Assembly (NASM), Low-Level Programming, Tutorials

• github-achievements-guide(5 ⭐): Step-by-step guide to earning GitHub badges and achievements, with tips for developers.

  Tech: Documentation, GitHub Ecosystem

• FlappyBirdAI(3 ⭐): AI-trained Flappy Bird clone using Deep Q-Learning (DQN) with Phaser.js and TensorFlow.js—demonstrates ML in game dev.

  Tech: JavaScript, TensorFlow.js, AI/ML, Phaser

• hris-recruitment-portal: Enterprise SaaS for full recruitment lifecycle (job postings, ATS, onboarding) as part of Talent Boozt.

  Tech: HTML/Full-Stack, SaaS, HR Tech

• ai-geospatial-platform: Web-based air quality monitoring and AI prediction platform with Angular, Spring Boot, Python, and MongoDB integrations.

  Tech: TypeScript, Java, Python, AI/ML, Full-Stack

• teamtrack-desktop: Local-first Electron desktop app for project/task management with encrypted SQLite, Supabase sync, and realtime updates.

  Tech: TypeScript, Angular, Electron, DevOps

• black_hole: Black hole physics simulation (gravitational lensing) evolving from 2D ray tracing to GPU-accelerated 3D in C++.

  Tech: C++, Physics Simulation, GPU

• astro-portfolio: Performance-optimized portfolio site built with Astro and Tailwind CSS.

  Tech: Astro, Tailwind CSS, Web Development

For more on AI development, cloud architecture, or full-stack consulting, check my Digital Garden or open-source contributions.

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📊 GitHub Stats & Metrics

📈 Detailed Metrics (Languages, Productivity, Achievements)

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⚙️ DevOps Workflow

• CI/CD: Automated builds with GitHub Actions for seamless integration.
• Deployment: Dockerized microservices deployed on AWS for scalability.
• Monitoring: Grafana dashboards for real-time system health insights.

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🤝 Why Connect?

I'm passionate about tech innovation, scalable software development, and solving real-world problems with AI and cloud technologies. Open to collaborations, mentorship, speaking opportunities, or full-stack consulting roles.

• LinkedIn: kavi-castelo
• X (Twitter): @kavicastelo
• Portfolio: kavindukokila.netlify.app
• Email: Contact via LinkedIn for hiring inquiries or project discussions.

Let's build scalable solutions together – whether it's AI-powered tools, enterprise apps, or DevOps optimizations!

👥 Communities & Coding Platforms

LeetCode Activity

Codeium & Other Platforms

CodersRank	WakaTime

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📃 Useful Gists

• Weekly Development Breakdown: Coding hours in TypeScript, Java, etc.
• Dev Math: Markdown Math Equations Related to Developer Life.
• SpringBoot Build/Test/Deploy: Java Deployment Utilities.

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Last Updated:

Keywords: Full-stack developer Sri Lanka, AI engineer Colombo, DevOps expert, SaaS builder, Java MEAN stack specialist.