Hi there, I'm Sandali Ranahewa – a developer passionate about cloud infrastructure, automation, Site Reliability Engineering, and building reliable, scalable systems. I also work across full-stack development, data engineering, and machine learning, with a strong foundation in data science.
Advancing my expertise in cloud infrastructure, Site Reliability Engineering, automation, and containerisation (Docker, Nginx). Passionate about building scalable, resilient systems and applying DevOps principles to real-world projects.
Exploring data engineering through ETL pipelines, data warehousing (SSIS, SSAS), dimensional modelling, and BI dashboards (Power BI) — turning raw data into actionable insights.
Building full-stack applications with React, Spring Boot, Node.js, and FastAPI — designing REST APIs, secure authentication (JWT/OAuth2), and scalable backend systems.
Continuously upskilling in infrastructure-as-code, observability, CI/CD pipelines, Linux environments, and cloud platforms (AWS, Azure) to stay ahead in a rapidly evolving tech landscape.
Ask me about: Python, Java, JavaScript, SQL, Docker, Kubernetes (basic), Nginx, AWS (EC2, S3, Lambda), Azure, CI/CD (GitHub Actions), Linux, Spring Boot, FastAPI, React, Node.js, MongoDB, MySQL, Redis, Power BI, SSIS, SSAS, ETL, Data Warehousing, Machine Learning (Scikit-learn, TensorFlow, PyTorch), RAG, LLM Integration, Git, GitHub, Postman, DigitalOcean, REST APIs, JWT, OAuth 2.0.
Beyond tech: Space nerd – I love following NASA and the latest cosmic discoveries. In my free time, I geek out on MIT Technology Review, PC World magazines, and National Geographic (animals are my soft spot). Always curious about what's next in tech and nature.
| Area | Technologies | Focus |
|---|---|---|
| Cloud & DevOps | AWS, Azure, Docker, Nginx, Linux, DigitalOcean, CI/CD (GitHub Actions), Git | Cloud provisioning, containerisation, reverse proxies with SSL, automated deployments, and infrastructure reliability |
| Full-Stack Development | React, Node.js, Express, Spring Boot, MongoDB, MySQL, Redis, TailwindCSS, DaisyUI | Scalable web apps, RESTful APIs, JWT/OAuth2 authentication, rate limiting, and responsive UI |
| Data Engineering | SQL Server, SSIS, SSAS, Power BI, Dimensional Modeling, Excel | ETL workflows, data warehouse design, operational dashboards, and business intelligence reporting |
| Machine Learning & AI | Python, Scikit-learn, TensorFlow, PyTorch, FastAPI, Streamlit, FAISS | End-to-end ML pipelines, model serving, RAG systems, and LLM-powered applications |
| API Development | FastAPI, Spring Boot, REST API Design, Swagger, Postman | Building fast, documented APIs, automated testing, and secure authentication flows |
| Data Science & Analytics | Python (Pandas, NumPy), R (Tidyverse, ggplot2), Statistical Modeling | Data cleaning, exploratory analysis, hypothesis testing, and reproducible research |
| Developer Tools | VS Code, Jupyter Notebook, Git, GitHub | Version control, collaborative workflows, and reproducible development environments |
- Email: sandaliranahewa@gmail.com
- LinkedIn: sandaliranahewa
I enjoy connecting with others who share an interest in cloud infrastructure, DevOps, data science, or software engineering. If you'd like to chat about a project, collaborate, or just exchange ideas, feel free to reach out.
"Small Steps, Big Systems with Continuous Improvements."