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I am a highly motivated and experienced consultant with a passion for technology and a broad range of skills in cybersecurity, network and system administration, automation, data engineering, and scripting. With over 7 years of experience in these fields, I have a deep understanding of the latest technologies and best practices, and I am able to provide expert guidance and support to clients of all sizes and industries. I have a proven track record of delivering high-quality work that meets clients' needs and exceeds their expectations, and I am committed to ensuring that each and every client is fully satisfied with the results. Whether you're looking to improve the security of your network, automate repetitive tasks, or build a scalable data pipeline, I have the skills and experience to help you achieve your goals. In addition to my technical expertise, I am a strong communicator and collaborator, and I always strive to work closely with clients to understand their needs and deliver solutions that meet their unique requirements. If you're looking for a consultant who can provide expert support in the areas of cybersecurity, network and system administration, automation, data engineering, and scripting, I would be honored to discuss your project with you. Don't hesitate to get in touch to learn more about my services and how I can help you succeed.

I’m a Web Developer & DevOps Engineer with 5+ years of experience building, securing, and scaling modern applications. My background combines PHP/Python development with infrastructure management — giving me the ability to deliver both feature-rich applications and the robust systems they run on. What I Offer: 💻 Web Development: PHP, Python, Laravel, secure APIs, and scalable back-end systems. 🎨 Front-End Development: Responsive, user-friendly interfaces with performance in mind. 🗄️ Database Management: MySQL/MariaDB clustering, Redis caching, query optimization, replication & backups. ⚡ DevOps & Cloud: Linux, NGINX, HAProxy, AWS (EC2, RDS, S3), GCP (Compute Engine, Cloud SQL), CI/CD pipelines with GitHub Actions. 📊 Monitoring & Optimization: Zabbix, Graylog, and proactive performance tuning. Why Work With Me? 🏆 Proven ability to handle both application development and infrastructure scaling. 🚀 Hands-on experience with high-traffic websites and mission-critical systems. 🤝 Client-focused approach: clear communication, reliable delivery, and long-term commitment. If you’re looking for someone who can code your application and ensure it runs reliably under heavy traffic, let’s work together to make it happen.

I have experience with Linux and Unix-like systems, mostly focusing on the userland. I have several projects, the biggest of which is Kreato Linux, which is a modular Linux distribution. I am very experienced in the Nim programming language and also feel comfortable with Python. I also have experience with RHEL, Debian and some SUSE systems. I have also used technologies like Nix, Docker, Ansible, GitHub Actions, GitLab CI, Git, etc. Overall, I have a passion and experience working with Linux and other Unix-like systems, both in terms of managing and developing software for them. While my main career is focused on system administration, I can also do translation and software development.

I build and maintain backend automation systems — Python scripts, data pipelines, and Linux server infrastructure — for teams that need reliable, hands-off operations. What I handle: - Python Automation: Scripts for scraping, scheduling, data processing, and third-party API integrations (REST/Websocket) - Linux & Server Administration: Setup, configuration, and troubleshooting of Ubuntu/Debian servers, Nginx/Apache, and Docker-based deployments on AWS EC2 - Data Pipelines: ETL scripts that clean and transform CSV/JSON/XML data into structured formats, with logging and error handling built in - Database Work: PostgreSQL, MongoDB, and SQLite — schema design, deduplication, and automated data loading - API Integration & Event-Driven Orchestration: Building headless REST APIs (Django REST Framework) and securing them with Token Authentication. Designing real-time, event-driven webhooks and asynchronous business logic pipelines using orchestration engines like n8n. I'm a clear communicator, respond fast, and I test everything before I call it done. If you need something built and then actually maintained — not just handed off broken — let's talk.

Senior Linux Platform Engineer | Performance & Network Debugging $65.00/hr I help diagnose and fix complex Linux issues in production environments. If your system behaves strangely (high load with low CPU usage, network instability, random slowdowns), I focus on identifying the real root cause quickly instead of applying temporary fixes. Clients usually come to me when: - something is not working as expected - previous attempts did not solve the issue - the problem is not obvious I am a senior Linux engineer with 20+ years of experience working on production systems, including distributed and high-availability environments. In my current role, I support a Linux-based platform used in satellite communication systems. I work across OS, network, storage, and virtualization layers, troubleshooting issues that require understanding how systems behave under real conditions. Some of the work I do regularly: - Investigating performance issues across multiple layers (CPU, I/O, network, application) - Debugging production problems using strace, tcpdump, and system-level metrics - Supporting large-scale OS upgrades (RHEL 6 → 7 → 9) with minimal downtime - Maintaining build systems that generate ISO/OVA images for production deployments - Supporting VMware environments (ESXi, vCenter) - Working closely with developers and support teams to identify real causes behind incidents Typical problems I help with: - High system load and performance bottlenecks - Network issues (MTU mismatch, latency, routing, DNS) - Linux debugging (process-level and system-level) - Service instability and unexpected behavior - Container-related issues (Docker / Kubernetes basics) - System tuning and long-term reliability improvements Tools I use regularly: top, vmstat, iostat, strace, tcpdump, netstat, ss, dig, systemctl, dmesg, log analysis I prefer clear communication, practical solutions, and fast turnaround when possible. I am also open to long-term collaboration if a strong match is established.

Software developer with a strong foundation in data structures and algorithms, specializing in high‐performance systems, optimization, and purpose‐built engineering solutions. Programming Languages • C, C++, Go • Python, Lua, Bash Libraries • Pandas, NumPy, ezdxf Client‐side • HTML, CSS, JS, TS • HTMX • React, Next.js • Hugo, Astro Server‐side • Node.js, Deno • Django, FastAPI Databases • PostgreSQL • MySQL, MariaDB • SQLite • MongoDB • Redis, DynamoDB Infrastructure • Linux • Docker, Podman • Cloudflare Tools • Git (GitHub, GitLab) • Neovim Documentation • Markdown • reStructuredText • LaTeX • Typst Productivity • Microsoft Office • Microsoft Power BI Computer‐Aided Design • AutoCAD • SOLIDWORKS • Siemens NX