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I build clean, functional solutions fast across the full stack. Specializing in: - Web: React, Next.js, Node.js, Python, PHP, Ruby on Rails, Golang, Laravel, Django, WordPress, Vue.js - Mobile: React Native, Flutter, Android (Kotlin), iOS (Swift), Dart - AI & Machine Learning: LLM integrations (Claude, OpenAI, Gemini), RAG pipelines, LangChain, vector databases, prompt engineering, chatbots, NLP, OCR, generative AI - APIs & Integrations: REST, GraphQL, payment gateways (Stripe, PayPal, Razorpay), Twilio, SendGrid, third-party services - Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, CI/CD, Nginx, Linux server administration, Cloudflare - E-commerce & CRM: WooCommerce, OpenCart, Magento, Odoo, Prestashop, Point of Sale systems - Databases: MySQL, PostgreSQL, MongoDB, MariaDB, Elasticsearch, SQLite, Redis, Microsoft SQL Server - Trading & Finance: MetaTrader 4/5, MQL4/5, Pine Script, NinjaTrader, OpenClaw, backtesting, trading bots - Data & Automation: Excel/Google Sheets automation, dashboards, data analysis, workflow automation I focus on understanding your requirements clearly, delivering working code, and communicating progress throughout.

✅ Core Expertise Web & App Development | SaaS & CRM Systems | AI Solutions | Automation | Digital Experience Web Development & Design – Modern, responsive, SEO-optimized, high-converting websites Mobile App Development – Cross-platform & native (Android & iOS) SaaS / CRM Platforms – Scalable systems & enterprise-grade applications, dashboard development Automation & Workflows – N8N, Zapier, Make.com, Zoho integrations SEO & Performance Optimization – Technical SEO, speed, and conversion optimization ✅ What I Offer 🤖 AI & Machine Learning AI-powered applications & intelligent systems Chatbots, NLP & Generative AI AI Agents & workflow automation Predictive analytics & data-driven solutions 🏗 Development & Architecture Full-Stack Development (UI/UX + Backend Engineering) REST & GraphQL API Development Scalable backend systems (Django, FastAPI, Node.js, ASP.NET) Software Architecture & System Design 🛒 E-Commerce & CMS Shopify & Custom E-Commerce Solutions WordPress Development (Elementor, Custom Themes) Payment gateway & third-party integrations ⚙️ Automation & Engineering Web scraping & data extraction Workflow automation systems AI-driven process automation Microcontroller & hardware integrations ✅ Additional Capabilities (Positioned as supporting skills, not core focus) Technical Writing & Documentation Project Management (Agile, Asana, workflows) UI/UX & Graphic Design fundamentals Word processing & structured documentation Data handling & operational support systems ✅ Tech Stack Python, JavaScript, C#, Dart, Java, Swift Django, Flask, FastAPI, Node.js, NestJS, ASP.NET Core React, Next.js, Vue, Angular | Flutter PostgreSQL, MongoDB | Docker, Kubernetes, AWS, GCP PyTorch, Scikit-learn, OpenAI N8N, Zapier, Make.com, Zoho ✅ Why Work With Me 8+ Years of Proven Experience Clean, Scalable & Maintainable Architecture Strong Communication & Remote Collaboration Business-Focused & Results-Driven Approach On-Time Delivery with High-Quality Standards

Based in Germany, I help clients fix and ship production web, API, database, WordPress, WooCommerce, and automation work. A web developer with 15+ years of hands-on experience building, fixing, and maintaining real production systems. I specialize in practical, bounded technical work: PHP/MySQL fixes, WordPress and WooCommerce issues, API and webhook integrations, JavaScript/CSS bugs, CSV/import/export automation, Google Sheets/App Script, and small internal tools. I built and operated SaaS companies, from the ground up: LAMP stack, optimized MySQL/PHP, PayPal integration, social APIs, server administration, and ongoing customer support. Clients usually hire me when something is broken, unclear, or half-finished and they need a careful developer to trace the issue, fix it cleanly, test it, and explain what changed.

Helping businesses build secure, automated, and high-availability infrastructure. I’m a DevOps and Infrastructure Engineer with extensive experience across Linux system administration, cloud automation, and network architecture. I design, deploy, and maintain resilient server environments that meet enterprise-level standards for security, performance, and scalability. ✅ Core Expertise Linux System Administration: RHEL, Rocky, Alma, Ubuntu, Debian – installation, patching, optimization, troubleshooting. DevOps & Automation: Ansible, Terraform, CI/CD pipelines, GitLab, Jenkins, Docker, Kubernetes, Python & Bash scripting. Cloud Infrastructure: AWS, Azure, Proxmox VE, VMware, KVM – provisioning, monitoring, scaling, backup & recovery. Network Engineering: BGP, OSPF, VLANs, LACP, VPN (OpenVPN, IPSec, WireGuard), FortiGate, MikroTik, OPNsense, pfSense. Monitoring & Observability: Zabbix, Prometheus, Grafana, Observium, ELK, EM7 – proactive alerting and performance analytics. Security & Compliance: Server hardening (CIS), firewall architecture, DDoS mitigation, IAM, zero-trust networks, PCI-DSS/ISO 27001 readiness. Backup & Disaster Recovery: rsync, Bacula, Ceph, Proxmox Backup Server – reliable, automated backup pipelines. 🧩 Services I Provide 🔹 Infrastructure & Server Administration Deploy and manage Linux servers, optimize system resources, secure configurations, and automate recurring maintenance tasks. 🔹 DevOps & Automation Implement Infrastructure as Code with Ansible and Terraform, design CI/CD pipelines, containerize applications with Docker and Kubernetes, streamline cloud provisioning. 🔹 Cloud & Virtualization Solutions Build, migrate, and optimize multi-cloud environments (AWS, Azure, Proxmox, VMware). Configure high-availability clusters and monitoring integrations. 🔹 Network Architecture & Security Plan and implement secure, high-performance network topologies: BGP/OSPF routing, VPN gateways, VLAN segmentation, firewall policies, and load balancing. 🔹 Monitoring & Performance Optimization Set up full observability stacks (Zabbix, Prometheus, Grafana). Enable alerting, trending, and capacity planning dashboards for proactive management. 🏆 Why Work With Me ⭐ 10+ years in Linux, DevOps, and Network Engineering. ⭐ Strong documentation and post-deployment support. ⭐ Hands-on experience in both enterprise and data-center environments. ⭐ Focused on uptime, automation, and security compliance. ⭐ Top-rated delivery with transparent communication and proven reliability.

With 8 years of experience as a seasoned DevOps Engineer, I bring a wealth of expertise in Kubernetes, AWS Cloud, and a comprehensive range of DevOps tools and practices. My skill set includes Docker, Linux system administration, and orchestration of microservices for high-availability (HA) deployments on Kubernetes. I am well-versed in leveraging GitHub Actions, ArgoCD, and Terraform to automate CI/CD pipelines, streamline infrastructure as code, and ensure seamless application deployments. Additionally, my experience spans implementing and managing AWS services, enabling robust, scalable, and cost-effective cloud solutions. Driven by a commitment to operational excellence, I focus on optimizing cloud performance, enhancing efficiency, and delivering exceptional results in complex DevOps environments. My expertise in the following areas: DevOps: .............................................................................. ✅ Git ✅ CI/CD (Jenkins) ✅ Docker ✅ Kubernetes ✅ TerraForm ✅ Helm ✅ Cloud (AWS,GCP Etc) ✅ Azure Devops -------------------------------------------------------- ✅ Linux / Windows System Administration ✅ Centos, Redhat, Ubuntu, Debian, Kali ✅ Setup /Manage: Dedicated, VPS, or Shared Server, ✅ Server Migration, Backup Management ✅ BIND, Cache & Proxy: Squid, FTP, DHCP, SMTP, POP, IMAP ✅ Configure Mail Server (Zimbra, Qmail, Sendmail, Exim, iRedmail, Postfix) ✅ Apache / NGinx / Lighttpd / LiteSpeed ✅ MSSQL/MySQL/MongoDB/MariaDB ✅ Shell Scripting ✅Ansible ✅ Script Installation and Configuration ✅ Cloud Services: Amazon Web Services /Digital Ocean / Amazon Web Services ✅ Virtualization (Proxmox / VMware / OpenVZ / Hyper-V), ✅ Penetration Testing ✅ Server Security: Firewall / DDOS Protection ✅ WHM, cPanel, CentosWebPanel, VestaCP, ISPconfig, Direct Admin, Plesk, Virtualmin, Webmin Experts ✅ Networking: Firewalls, Routers, Load Balancers: MikroTik and Pfsense. ✅ VPN: Management and configure Site-to-Site/VPN-as-Service (L2TP-PPTP/OVPN) ✅ Resolve issues with Windows/ MacOS / Server / Network / IT equipment. Network: ......................................................................... ✅ Configuration of Cisco Firewalls, Routers & Switches ✅ Existing Network Connectivity Issues ✅ Routing Protocol (IPV4 and IPV6) ✅ Network Design, Troubleshooting in GNS3 & Cisco Packet Tracer ✅ Report Writing Guidance for Network ✅ Routing Protocols (Static and Dynamic) ✅ Network Diagram using MS Visio WHY ME ? ======== ✅ I work round the clock if task required. ✅ I offer unlimited revision till client's satisfaction and 30 days after sales service on web development. ✅ You can always rely on me to get your project done professionally. ✅ NO upfront payment and only take payment on Freelancer. ✅ I'm always free for discussion and I don't charge anything for that. ✅ When you deal with me, you can expect professionalism, honesty, sincerity and perfection.

I’m a results-driven IT Leader and Infrastructure Architect with over 11 years of progressive experience in designing, implementing, securing, and managing complex IT infrastructures across diverse industries. My career spans network engineering, solution architecture, systems administration, DevOps, and IT strategy, with a strong foundation in both on-prem and cloud ecosystems. I’ve architected and led full-scale deployments across routing, switching, security, WLAN, NAC, NMS, SIEM, and IAM using Cisco, Juniper, Fortinet, Aruba, Ruckus, HPE, Microsoft, AWS, and GCP. I have successfully led PCI DSS and ISO 27001 compliance projects, implemented privileged access management (PAM), identity governance, conditional access, and deployed SIEM solutions like Azure Sentinel to enhance monitoring and threat response. My DevOps expertise includes Docker, Docker Compose, Kubernetes, Terraform, Ansible, PowerShell, Bash, Python, and CI/CD automation, driving Infrastructure as Code (IaC), system hardening, and zero-downtime deployments. I also bring deep operational knowledge of Microsoft 365, Entra ID, Exchange, SharePoint, Teams, and collaboration tools like Jira, Confluence, and Miro. Below are my services: NETWORKING: 1. Network designing, HLDs, LLDs, and Network diagrams on MS Visio 2. Network automation, configurations, testing, and troubleshooting 3. Network support level 1/2/3, managed services on a monthly subscription/SLAs 4. Technical proposals, RFPs Platforms: Juniper (SRX Series, EX Series, MX Series, Junos space), Aruba (ClearPass/WLAN), Cisco (routers/switches/firewalls/WLAN/ISE), Ruckus WLAN, Fortinet firewalls, Whatsup gold, Cisco VoIP phone SPA series Networking Expertise: Routing protocols (OSPF, EIGRP, RIP, BGP), STP, RSTP, VLANs, DNS, DHCP, MPLS, VRRP, HSRP, NAT/CGNAT, PAT, ACLs, port forwarding IT Infrastructure/DevOps: 1. IT strategy, IT infrastructure design, IT automation 2. Infrastructure as Code (IaC) on AWS, Azure, GCP, OCI, and other cloud providers. 3. System administration, IT support on a monthly subscription/SLAs Skills: Linux (Ubuntu, CentOS, Debian, RHEL), Windows servers (R2012, R2016, R2019, R2022), Digital Ocean, Active Directory, Microsoft Exchange, SharePoint, Entra ID, Jira, Confluence, Miro, Zoho CRM, Rocket chat, Hyperledger, VMware, FusionPBX, AWS, Azure, GCP, Apache, Docker, Kubernetes, Ansible, Terraform, Bash, PowerShell, Python, ISO 27001, PCI DSS, Zabbix, Azure Sentinel

Hi! I’m Hasan, a Senior Full Stack Developer with over 10 years of experience in building fast, secure, and scalable web & mobile applications. With 74+ completed projects and a 4.9/5.0 rating on Freelancer.com, I’ve earned a reputation for clean code, reliable delivery, and solutions that simply work. From enterprise web apps to lightweight mobile platforms, smart automation bots, and large-scale data scraping systems — I bring full-stack expertise and a get-it-done mindset to every project. What I Bring to the Table: ✅ Full Stack Web & Mobile App Development ✅ Backend Systems, APIs & Microservices ✅ Web Scraping, Crawlers & Data Extraction ✅ Task Automation & Workflow Optimization ✅ CMS Development & Custom Platforms ✅ DevOps, CI/CD, and Cloud Infrastructure ✅ Agile/Scrum Leadership & Technical Mentorship Tech Toolbox: Languages & Frameworks: PHP, JavaScript, Node.js, React.js, Vue.js, Laravel, Symfony, NestJS, ExpressJS, Objective C, Golang, Java, C#, WordPress, CodeIgniter Databases: MySQL, SQL Server, PL/SQL, MongoDB, Firebase, Redis Tools & Technologies: Docker, Kubernetes, RabbitMQ, Elasticsearch, GraphQL, Vagrant, Nginx, Apache, CompoDoc, ESLint, JIRA, Git Mobile & Web: React Native, Flutter Specialties: 1. Web & Mobile App Development 2. Backend Architecture 3. Web Scraping & Automation Bots 4. DevOps & Deployment 5. CMS Customization 6. API Integration & Microservices 7. Agile/Scrum 8. SEO & Digital Transformation 9. Database Design 10. Scalable System Design Whether you’re launching a SaaS platform, building an internal tool, or automating a manual process — I’m here to help you ship smarter and scale faster. Let’s turn your vision into a working product — reach out and let’s get started!

✪ I assure on time completion of project if not I won't charge 50% from that project. ✪ I am very certain to deliver your projects On time and On budget , I have achieved excellence award in field of DevOps Engineering. I am certified in AWS as well as Kubernetes. You can trust the expertise. I won't be passing your project to any other freelancer I will be working with you until it is completed. Skill Sets: ☑ Jenkins / Gitlab / Github / Azure Devops{CI/CD} ☑ Ansible / Puppet / Chef ☑ Docker / Containerd ☑ Kubernetes / Helm ☑ AWS / Azure ☑ Linux Thanks If you are Here Then you and I can definitely build trust to each other.