David Kljajo DevOps Engineer Portfolio
๐ Specializing in: Docker Containerization, Kubernetes Orchestration, Python Automation
๐ Location: Available for Remote Work Worldwide
๐ฏ Focus: Infrastructure as Code, CI/CD Pipelines, Site Reliability Engineering, Cloud Migration
๐ Certifications: View my verified badges in the Certifications section
๐ง Contact: davidkljajo@gmail.com | Available for Remote Work
โข IBM Data Science Professional Certificate (Coursera)
โข Google Data Analytics Professional Certificate (Coursera)
โข Machine Learning Specialization by Andrew Ng (Coursera)
โข Python for Data Science and AI (IBM via Coursera)
โข Data Visualization with Python (IBM via Coursera)
โข Currently studying for AWS Cloud Practitioner certification
โข Expanding Docker and Kubernetes knowledge through hands-on projects
โข Building practical DevOps experience with CI/CD pipelines
โข Contributing to open-source projects to gain real-world experience
Rent A Kayak Mostar
Responsive promotional website for kayak rental services on the Neretva River. Built with pure HTML, CSS, and JavaScript without frameworks.
Full Dockerized & Kubernetes-Deployed SPA
End-to-end DevOps workflow for building, containerizing, and deploying a Single Page Application using Docker, Kubernetes, and Kind in local development.
Interactive DevOps Terminal Portfolio
Interactive terminal UI with matrix-style animations, dark/light mode toggle, live GitHub stats, and responsive design. Built with Vanilla JS.
Dockerized App with Let's Encrypt
Static website deployment using Caddy server with automated HTTPS certificates via Let's Encrypt, DuckDNS support, and Docker containerization.
Enterprise Knowledge Assistant
AI-powered knowledge assistant using Amazon Bedrock, Titan Embeddings, Nova Micro FM, OpenSearch, and S3 with AWS Well-Architected Framework.
Forum Scraper
Python tool using Selenium, Requests, and BeautifulSoup to automatically log in and scrape posts from forums, saving data to CSV for analysis.
AWS Application Modernization
Application modernization using containerization and AWS cloud services. Focus on Docker containers with Amazon ECS, AWS Fargate, and GitHub Actions CI/CD.
Volcano & Population Map
Interactive map using Folium library to visualize volcano locations with color-coded elevation markers and global population data from GeoJSON layers.
Portfolio Website: Online
GitHub Pages: Operational
GitHub API: Connected
Credly Badges: Synced
Latest Deploy: Building...
I began my career as a manager and deputy director in a family-owned manufacturing company, where I led daily operations, developed customer relationships, and oversaw key business processes. Building on that foundation, I transitioned into the tech sector with a focus on system administration, cloud automation, and technical support โ earning multiple specializations in Linux, Python, and Data Science.
โข DevOps & Cloud (Docker, Terraform, Ansible)
โข Linux Systems & Networking
โข CI/CD Pipelines & Infrastructure as Code
โข Python for Data Analysis & Automation
โข Customer and Technical Support
โข Project Management & Cross-Functional Collaboration
I'm passionate about solving complex problems, optimizing systems, and continuously learning new technologies that bridge infrastructure with innovation.
โข Hardware and software troubleshooting
โข Zendesk support system management
โข Team collaboration and customer support
โข Linux/Unix administration and web servers
โข AWS cloud computing and Infrastructure as Code
โข CI/CD pipelines and monitoring with ELK stack
โข HashiCorp tools and system performance optimization
โข Linux processes, networking, and containers
โข Docker images and Kubernetes orchestration
โข Database management (SQL, Redis, RabbitMQ)
โข Linux security and system administration
โข Manager and deputy director of PVC manufacturing company
โข Managerial and economic tasks, system administration
โข Microsoft Office suite and administrative operations
โข 11 years of leadership and business management experience