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Data Engineer specializing in Python ETL pipelines for cloud data warehouses. I build automated data engineering solutions processing millions of records daily. From real-time trading data to healthcare analytics 6+ years building production ETL systems on GCP and AWS using Apache Airflow, Dagster, and modern data stacks. I architect data engineering solutions that handle schema changes, ensure data quality, scale with demand, and prevent 3 AM pipeline emergencies. DATA ENGINEERING & ETL EXPERTISE ETL Pipeline Development & Data Engineering I design scalable ETL pipelines and data engineering infrastructure using Python with Apache Airflow or Dagster. My data engineering solutions include automated error handling, data validation, and comprehensive monitoring. Cloud Data Engineering (GCP & AWS) I build cloud-native data engineering solutions and ETL pipelines on modern platforms: • GCP: BigQuery, Dataflow, Cloud Functions, Pub/Sub • AWS: Redshift, Glue, Lambda, S3, Kinesis Enterprise data warehouse migration: Reduced ETL processing time 60% moving to GCP. Python Data Engineering & Pipeline Orchestration Python expert for data engineering and ETL development. I implement robust data workflow orchestration using Apache Airflow and Dagster with pipeline monitoring for data quality and reliability. KEY DATA ENGINEERING & ETL PROJECTS Election Data Pipeline - Python + Dagster data engineering solution extracting campaign finance data. Automated 40 hours/week of manual processing. Real-Time Trading Pipeline - Multi-layer data engineering architecture for algorithmic trading. Achieved <100ms latency, 100% uptime for streaming data. Healthcare Data Migration - Led enterprise ETL migration to GCP BigQuery. Result: 60% faster processing, 50% better performance. ML Feature Engineering - Built end-to-end data pipeline for AirAsia's recommendation system. Processed millions of records, increased engagement 25%. Web Scraping ETL - Automated data engineering solution combining scraping with warehousing using Python and Apache Airflow. DATA ENGINEERING TECH STACK ETL & Orchestration: Apache Airflow, Dagster, Apache Spark, Kafka, dbt Languages: Python (Expert), SQL (Expert) Cloud Platforms: GCP (BigQuery, Dataflow), AWS (Redshift, Glue, Lambda) Databases: PostgreSQL, MongoDB, BigQuery, Redshift, Snowflake Python Libraries: Pandas, PySpark, SQLAlchemy, Apache Beam Infrastructure: Terraform, Docker, Kubernetes, CI/CD. IDEAL PROJECTS • ETL pipeline development from scratch (Python, Airflow, cloud platforms) • Data warehouse engineering and cloud migration (BigQuery, Redshift, Snowflake) • Real-time data engineering and streaming ETL implementation • Legacy ETL modernization and data pipeline migration • Web scraping data engineering with ETL workflows • Data integration connecting multiple sources • ML data pipeline engineering for feature engineering LET'S BUILD YOUR DATA ENGINEERING SOLUTION Available for fixed-price data engineering projects and long-term ETL contracts. I work across US, European, and Asian time zones (GMT+7). Ready to discuss your data engineering and ETL needs? Send me a message. I respond within 2 hours during business hours.

With 12 years of experience starting from Full-Stack Development (2014) to Senior DevOps (2018), I bridge the gap between code and infrastructure. I specialize in the 'Trifecta': Bare Metal Performance, Containerized AI Workloads, and Proactive Security. I don't just fix servers; I build resilient, automated environments that scale with your product. I would be very happy if you could see the actual condition of your server and optimize it as efficiently as possible. Experience in problem solving on linux server while server as Web Server, DB server, shared hosting (WHM/ cpanel or native ), mail server, file server, DNS server, monitoring server or other app. With 5++ years experience on devops and server infrastructure. Also become web development since 2014, I will help you to deploy your website, troubleshooting error and optimization. My strengths are: 1. Server kind, i.e : baremetal, Openstack architecture, VMware, Openshift, VPS / VM, Container (Docker/ LXC), Docker compose, Cloud Computing (AWS, digital ocean, Google cloud, etc), Shared hosting (VestaCP, ISP config, WHM, Plesk, cyberpanel) 2. AI infrastucture and automation. 3. Server management and monitoring with technology, e.g : NGINX, APACHE2, BIND DNS, mysql, postgresql, librenms, grafana, prometeus, elk, Zimbra, DOCKER, traefik, LXC, WHM / CPanel, PHP-FPM, docker-compose. 4. PHP OOP, MVC, HMVC programming. Native or framework (Laravel , CodeIgniter, Wordpress) 5. Python apps 6. Database architecture. Mysql and MongoDB. 7. JavaScript/JQuery for Optimization UI. Browser side and asynchronous data processing used Ajax. 8. HCI infrastucture, VPS mode, lxc container, docker container. 9. Web service security implementation/improvement on Application-level. Protection against SQL injection, XSS and request forgery/spoofing. Captcha ready solutions. 10. Honeypot technology (Glastopf and all about attack on web server) 11. Using GIT or SVN.

I don't just configure servers — I build the software that makes them fast. As the maintainer of 100+ NGINX modules and RPM packages used on thousands of production servers worldwide, I bring a depth of expertise that most server admins simply can't match. When you hire me, you're not getting someone who follows tutorials — you're getting the person who writes the software those tutorials are about. My background: 15+ years in Linux infrastructure. 3+ years as a Software Developer at CloudLinux maintaining RHEL packages. Master's in Computer Science. I run GetPageSpeed — a commercial RPM repository powering high-performance web stacks across enterprise environments. What I deliver: PERFORMANCE - NGINX + Varnish configurations that cut TTFB to under 200ms - PHP-FPM, Redis, OPcache tuning for maximum throughput - MySQL/MariaDB optimization that eliminates bottlenecks - PageSpeed scores from 20 to 90+ SECURITY - Malware removal and full hack recovery - Firewall hardening (UFW, fail2ban, ModSecurity) - SSL/TLS with A+ ratings - Vulnerability patching and incident response TURNKEY SERVER SETUPS - Magento 2 (from 5 hrs) | WordPress/WooCommerce (from 5 hrs) - Magento 1.9 (from 4 hrs) | Zero-downtime migrations What makes this different: every server I build gets access to my private RPM repository — enterprise-grade, pre-built packages with one-command upgrades. It's like NGINX Plus, but better and with a lifetime license. Stack: Linux (Ubuntu, CentOS, RHEL, AlmaLinux, Debian) | NGINX | Varnish | Redis | Docker | AWS | GCP | Azure | DigitalOcean | CloudFlare | PHP-FPM | MySQL | MariaDB | PostgreSQL I work via SSH. No plugins, no bloat — server engineering done right.

A Cyber Security Consultant with over 7 years of experience in penetration testing and vulnerability assessment across Web, Mobile Apps, Networks, and Infrastructure. I am certified as an Offensive Security Certified Professional (OSCP), CREST Registered Penetration Tester (CRT), CREST Practitioner Security Analyst (CPSA), and Burp Suite Certified Practitioner (BSCP).

As a seasoned WordPress Technical Support Specialist with over a decade of experience, I excel in providing top-notch technical support, site maintenance, and malware removal. I have a proven track record of successfully completing extensive malware removal projects, ensuring websites run at peak performance and security. My proficiency in troubleshooting and optimizing WordPress sites allows me to effectively resolve JavaScript errors and database issues. Utilizing my skills in PHP, MySQL, and WordPress, I deliver tailored solutions that meet diverse client needs. At your service! Hendra

Expert Web Application Penetration Tester & Vulnerability Assessment Specialist Overview: Are you looking for a skilled Web Application Penetration Tester who can safeguard your online assets with meticulous vulnerability assessments? You've found the right professional! With years of hands-on experience in vulnerability assessment and web application security, I specialize in identifying and mitigating security vulnerabilities to protect your web applications from potential threats. My expertise lies in both automated and manual penetration testing, adhering to the OWASP guidelines to ensure comprehensive security evaluations. Why Hire Me? In-Depth Vulnerability Assessment: I conduct thorough assessments to uncover security weaknesses in your web applications, providing actionable insights to fortify your defenses. OWASP-Compliant Pentesting: Utilizing the latest OWASP methodologies, I deliver precise and effective penetration tests, ensuring your applications meet high security standards. Comprehensive Reporting: Receive detailed reports highlighting vulnerabilities, their potential impacts, and clear, practical remediation steps to enhance your security posture. Custom Solutions: Every project is unique, and I tailor my services to meet your specific security needs, ensuring optimal protection for your web applications. Commitment to Excellence: My dedication to continuous learning and staying updated with the latest security trends ensures that I provide top-notch services, even without formal certifications. Skills and Tools: Web Application Penetration Testing Vulnerability Assessment OWASP Guidelines Compliance Manual and Automated Testing Acunetix, Burp Suite, OWASP ZAP Hostinger Server Management WordPress Security Professional Experience: Conducted extensive penetration tests and vulnerability assessments for various clients, identifying critical security flaws and providing strategic remediation. Successfully managed security for multiple web applications, ensuring robust protection against potential cyber threats. Delivered comprehensive security reports and consultations, empowering clients to enhance their web application security. Client Testimonials: "The vulnerability assessment provided was thorough and detailed, helping us patch critical issues we were unaware of." "Exceptional pentesting services! The insights and recommendations significantly improved our security posture." I am passionate about helping businesses secure their digital environments. Let’s connect to discuss how I can assist in securing your web applications effectively and efficiently. Contact Me: Ready to secure your web applications? Let's talk! Feel free to reach out to discuss your project needs and how I can help protect your online presence.