Senior Software Engineer | IT Consultant | Network & Security Expert | Remote Freelancer | Web Development & Cybersecurity Specialist
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Description

With over 14 years of hands-on experience in software engineering, IT consulting, network administration, and cybersecurity, I bring a strong technical foundation and a problem-solving mindset to every project. I hold a Master’s degree in Software Technology Engineering and have led numerous high-impact projects across sectors — from corporate IT systems to public service and humanitarian organizations.

💻 Software Development & Engineering
Expert in full-stack development using Python, JavaScript, TypeScript, C++, Java, C#, MATLAB, HTML, and CSS. I have built and optimized scalable and secure applications — including web apps, backend services, and mobile applications. I utilize frameworks like Node.js and libraries like jQuery and WordPress to create clean, efficient, and maintainable code.

🌐 Network & Infrastructure Consulting
I specialize in designing and troubleshooting robust network infrastructures. From configuring Cisco and MikroTik devices to setting up firewalls (Kerio Control), VPNs, DHCP, and enterprise-level switch management, I provide end-to-end networking solutions for businesses of any size.

🔐 Cybersecurity & System Hardening
My cybersecurity services include vulnerability assessments, penetration testing, DDoS protection, group policy configuration, antivirus deployment, IIS security, and comprehensive system hardening. I ensure your IT assets are protected and aligned with modern security best practices.

☁️ Cloud & DevOps Expertise
I work extensively with AWS, Azure, and Google Cloud to deploy scalable infrastructure and applications. I integrate CI/CD pipelines and containerization technologies like Docker and Kubernetes. I also manage virtual environments via VMware ESXi and Hyper-V.

📦 Backup & Data Protection
Experienced with Veeam Backup, HP server environments, and tape drive systems to ensure business continuity and data integrity through modern backup and disaster recovery strategies.

🛠 System Administration & Support
From Windows Server and Remote Desktop Services to IT Support, cPanel, and port forwarding, I maintain stable, secure, and fast systems for smooth business operations.

📈 Web Design & SEO Optimization
I offer UI/UX-optimized website design with responsive layouts, Google Analytics, Google Search Console, and SEO best practices to increase visibility and user engagement.

🧠 ERP Systems & Process Automation
Skilled in deploying ERP systems, database design, and automating business processes to improve operational efficiency and scalability.

📹 CCTV & Surveillance Systems
I design, install, and maintain analog and digital CCTV systems, configure IP cameras, NVR/DVR, VMS software (Milestone, Genetec, Honeywell), and integrate surveillance with cloud and alarm systems — including PoE setup and AI-powered features like facial recognition and behavior analysis.

🧪 Network Simulation & Analysis Tools
I use Cisco Packet Tracer, GNS3, Wireshark, Burp Suite, Nmap, Metasploit, NetSim, EVE-NG, Omnet++, NS3, and OPNET for simulation, analysis, and advanced network planning.

🎯 Why Choose Me?
✅ Proven track record of reliable, scalable solutions
✅ Fluent in both high-level architecture and detailed implementation
✅ Client-oriented with a clear, honest communication style
✅ Rapid delivery, remote collaboration, and full transparency
✅ Passionate about helping people and working on impactful projects

Whether you need to secure your infrastructure, build software, migrate to the cloud, or manage your IT environment, I provide trustworthy, long-term solutions with care and professionalism.

📩 Let's work together to build something secure, efficient, and future-ready. I'm always open to new projects and collaborations!

About the seller
aa.expert.tech

aa.expert.tech

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Singapore

Last Seen

1 day ago

Member Since

May 11, 2025

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How can I start my project?

Starting your project is simple — just send me a clear and detailed description of what you need. The more specific the information you provide, the better I can tailor the service to your needs. Feel free to include any reference files, goals, or additional context that will help me understand your project fully.

What information do you need to begin?

To ensure a fast and efficient start, please provide the following: A full description of the project or technical issue Your specific requirements or goals Necessary access to servers or platforms (if applicable) Desired delivery time or project deadline Your preferred communication method (email, Telegram, etc.) Any supporting documents or reference files related to the project The more complete your information is, the faster and more accurately I can deliver your project.

How long will the project take to complete?

The timeline depends on the complexity and scope of the project. Once I receive and review your information, I will provide you with an estimated delivery time and keep you updated throughout the process.

What if I need changes after the project is delivered?

Minor revisions are completely free of charge. For major or structural changes, additional costs may apply based on our initial agreement.

Can I stay in touch with you during the project?

Absolutely! You are welcome to contact me at any time during the project. I’m here to answer your questions and support you every step of the way.

Do you offer support after the project is finished?

Yes. I offer post-delivery support for minor edits or future updates. This includes fixing small issues or adding new features if needed.

How can I leave feedback?

Once the project is complete, I’d appreciate your feedback. It helps me ensure you’re satisfied with the final result and gives me an opportunity to make improvements if necessary.

Can we work together on future projects?

Of course! I’m always open to long-term collaborations and would be happy to assist you with future projects. Building strong, lasting relationships with my clients is my top priority.

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hourly Rate
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hourly Rate
10.00 USD
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hourly Rate
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Processing Fees
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