Senior Linux & Cloud Infrastructure Engineer | DevOps | 5+ Years | 100% Job Success
I keep production systems up, fast, and secure — so you don't have to think about infrastructure.
Currently managing 60+ Linux servers across AWS, Azure, and GCP for enterprise clients, including
high-traffic WordPress fleets, educational LMS platforms, and SaaS applications.
━━ WHAT I DELIVER ━━
→ WordPress at Scale: GridPane, OpenLiteSpeed, LiteSpeed Enterprise, Cloudflare WAF,
CDN optimization — page loads cut from 4s to <1s
→ Cloud Infrastructure: AWS (EC2, S3, Route 53, IAM), Azure, GCP — architecture,
migration, cost optimization
→ DevOps & CI/CD: Jenkins, GitHub Actions — automated build, test, and deployment pipelines
→ Infrastructure as Code: Ansible playbooks for provisioning, config management,
and compliance automation (DISA STIG, OpenSCAP)
→ Containers: Docker, Portainer, Docker Compose — multi-container app deployment
→ Monitoring & Observability: Zabbix, Grafana, Prometheus, Loki — full-stack setup
with alerting pipelines across 40+ production servers
→ Networking & VPN: Tailscale mesh VPN, Cloudflare Tunnels, Nginx/Caddy reverse proxy,
pfSense, DNS management at scale
→ Security & Compliance: ModSecurity, OWASP hardening, DISA STIG, Wazuh SIEM,
zero breaches in 5 years
→ Automation: Ansible, Bash, PowerShell, n8n workflows — eliminated 20+ manual hours/week
→ Microsoft 365 & Entra ID: full tenant management, MFA, Conditional Access, bulk provisioning
→ Mail Infrastructure: Postal Mail Server, SendGrid, DKIM/SPF/DMARC from scratch
→ Virtualization & Homelab: Proxmox, VMware ESXi, PXE boot + autoinstall for
zero-touch Ubuntu provisioning, LVM storage, VM lifecycle management
━━ PROVEN RESULTS ━━
✓ Built Jenkins CI/CD pipeline with Ansible for DISA STIG-compliant Ubuntu server fleet
✓ Deployed PXE autoinstall infrastructure for zero-touch provisioning of 10+ VMs
✓ Migrated 50+ WordPress sites with 100% data integrity and zero downtime
✓ Reduced server response time 40% through OLS tuning + CDN integration
✓ Set up full observability stack (Zabbix + Grafana + Loki) across 40+ production servers
✓ Implemented Tailscale mesh VPN across Proxmox homelab and remote VPS nodes
✓ Configured multi-layered security stack reducing spam/injection by 95%
✓ Automated M365 student provisioning for 3 educational institutions (500+ accounts)
✓ Reduced manual ops overhead 60% through n8n + Bash automation workflows
✓ Deployed automated backup systems saving clients 15+ hours/week
━━ TECHNOLOGY STACK ━━
Cloud: AWS (EC2, S3, IAM, Route 53, CloudWatch) | Azure | GCP
On-Prem: Proxmox | VMware ESXi | Hyper-V | Bare Metal (OVH, Contabo, Hetzner)
OS: Ubuntu 20/22/24 LTS | Rocky Linux | CentOS | RHEL | Debian
Web: Apache | Nginx | LiteSpeed | OpenLiteSpeed
Panels: GridPane | cPanel/WHM | Plesk | CyberPanel | aaPanel
DB: MySQL | MariaDB | PostgreSQL
DevOps: Ansible | Jenkins | GitHub Actions | Bash | PowerShell | n8n
Containers: Docker | Portainer | Docker Compose
Monitoring: Zabbix | Grafana | Prometheus | Loki | Uptime Kuma
Security: Wazuh SIEM | OpenSCAP | ModSecurity | Cloudflare WAF | CSF | Sophos | Fortinet
DNS/Mail: Cloudflare | Route 53 | Postal Mail Server | DKIM/SPF/DMARC
RMM: Atera | ConnectWise | Datto | N-able
I provide detailed documentation for every implementation and respond within 1 minute during
business hours
Send me your requirements — I'll respond with a tailored plan within 24 hours.
Windows Server
Linux System Administration
Firewall
Office 365
Database Administration
Web Server
cPanel
WHMCS Development
Backup & Migration
Microsoft Office
Tech & IT
IT Support
Tilak R.
Chandigarh, India
$20/hr
4.9
442 jobs
I’m a Red Hat Certified Engineer (RHCE) and Red Hat Certified Security Specialist (RHCSS) with over 7 years of hands-on experience in System and Database Administration, Server Security Hardening, and Cloud Infrastructure Management.
I specialize in designing, deploying, and maintaining LAMP/LEMP environments (Linux, Apache/Nginx, MySQL, PHP/Python/Ruby), with strong expertise in performance optimization, security hardening, and automation.
### 🧠 Core Expertise
Linux Systems Administration: Ubuntu, Debian, CentOS, RHEL
Web Stack Management: LAMP/LEMP, HAProxy, Ruby & Python/Django deployments
Server Security: DDoS mitigation, fail2ban, CSF firewall, VPN, and SSL management
Monitoring & Performance: Nagios, NewRelic, Google PageSpeed, Cloudflare, MaxCDN
Virtualization & Cloud: VMware vSphere, AWS EC2, RDS, S3, Route53, CloudFront, ELB, Auto Scaling
Load Balancing & High Availability: HAProxy, Keepalived
DevOps Tools: Automation and CI/CD for deployment pipelines
Database Management: MySQL, PostgreSQL, and performance tuning
Migration & Troubleshooting:** Site and server migrations, DNS/BIND, PowerDNS, network troubleshooting
### ☁️ Cloud & Hosting Providers
Extensive experience with:
AWS, Rackspace, Linode, DigitalOcean, HostGator, MediaTemple, Cloudflare, NameCheap, GoDaddy, QuickWeb, Bluehost, and more.
### 🛠 Control Panels & Platforms
CPANEL, Plesk, Webmin, H-Sphere, WHMCS reseller setups, and migrations (DNS, Email, WordPress).
### 🔧 Additional Skills
* Odoo/OpenERP installation
* WordPress deployment
* Squid configuration
* Cisco, Mikrotik, Juniper, and Extreme Networks device management
I focus on providing reliable, secure, and high-performing systems that support business continuity and growth. Whether you need server setup, security hardening, migration, or ongoing system support, I’m committed to delivering results with efficiency and attention to detail.
Let’s ensure your servers and infrastructure perform at their best.
Plesk
Ubuntu
Amazon Web Services
cPanel
Linux System Administration
Domain Migration
Amazon EC2
Proxmox VE
Website Migration
Email Support
SSL Certificate
Web Hosting
WordPress Malware Removal
CI/CD
DevOps
Usman K.
Chandigarh, India
$35/hr
4.9
126 jobs
I keep AWS and Linux servers fast, secure, and online. When something breaks, I get on it quickly and fix it properly instead of putting a patch over it. Most of my clients come to me because they cannot afford downtime, and they stay because things just work after I am done.
A bit about my experience. I have spent the last 12+ years managing servers and infrastructure, with over 11,000 hours of it right here on Upwork. Some of the things I do most:
Migrations. Moving websites and applications between servers, or onto AWS, with the lowest possible downtime. This is the work I enjoy most and the work I am known for.
High availability setups. Load balanced web servers on Apache and Nginx, MySQL, Percona and MariaDB with master and slave replication, Varnish for caching, Bind for DNS, and NFS for shared storage.
Security and compliance. Server hardening, firewalls, ModSecurity, and locking things down sensibly. I have worked on PCI requirements and I hold a CEH.
Automation and monitoring. I use shell scripting to take care of the repetitive daily work, and I set up monitoring so problems get caught before your users ever notice them.
How I work, and why clients keep coming back:
I genuinely care about doing the job well, not just done.
Your data stays private. I am happy to sign an NDA.
I do not outsource. You deal with me directly, start to finish.
I would rather ask a few good questions up front than guess and make a mistake.
I explain things in plain language, whether you are a senior architect or not technical at all.
Tools and tech I work with: AWS, CloudFront, Cloudflare, Linux (CentOS, Ubuntu, RedHat, FreeBSD), Apache, Nginx, Varnish, MySQL, Percona, MariaDB, Bind, NFS, server security and firewalls, ModSecurity, shell scripting, Nagios, and tuned setups for WordPress, Drupal and Joomla. Comfortable with cPanel, Plesk and Webmin too.
I am around on weekdays and easy to reach over email, phone, Teams, Telegram or Google Chat, and I usually respond within a few hours. Happy to share references if you would like them.
If you have a server that needs moving, securing, speeding up, or rescuing, send me a message and tell me what is going on. I will tell you honestly whether I can help and how I would approach it.
Plesk
DigitalOcean
Linux System Administration
Amazon Web Services
DevOps
CentOS
Apache Administration
cPanel
Amazon S3
Ubuntu
Database Administration
Amazon EC2
Cloudflare
Windows Server
Cloud Migration
Amit R.
Chandigarh, India
$25/hr
4.7
18 jobs
🚀 Senior AI/ML Engineer | LLMs, Agentic AI, RAG Systems | Python + React + Node (Claude, GPT, Llama, Deep Seek)
I build production-grade AI systems — the kind that don't just demo well, but actually run in production with real users, real data, and real stakes.
From LMS platforms with AI-generated curriculum, to CRMs where every module is AI-first, to a mobile app that simulates a person's face and voice from childhood to old age — I've shipped the full spectrum of what's possible with today's models. If you have an idea that sounds "a bit ambitious," that's usually where I do my best work.
What sets me apart:
✅ 9+ years across AI/ML, backend, and full-stack engineering
✅ Hands-on with every major model ecosystem — OpenAI, Anthropic Claude, Google Vertex, AWS Bedrock, LLaMA, Stable Diffusion
✅ Agentic AI specialist — multi-agent systems, tool-use, RAG, context-aware chatbots
✅ Startup-tested — I've architected from zero for early-stage founders and scaled systems for high-growth teams
✅ No hand-waving — I ship clean, documented, production code and hit deadlines
✅ Comfortable owning the whole stack: research → architecture → code → deployment → iteration
🧠 AI / ML Stack
🔹 LLMs & Generative AI — GPT-4o, Claude 3.7, LLaMA 4, Gemini, Claude Code, Cursor/Windsurf workflows
🔹 Agentic AI — conversational agents, dialogue systems, multimodal agents, voice-enabled bots
🔹 RAG & Vector Systems — embeddings, vectorization, VectorDBs, semantic retrieval pipelines
🔹 Image/Video/Audio Generation — DALL-E, Midjourney, Stable Diffusion, ElevenLabs, HeyGen
🔹 Automation & Orchestration — n8n, Make, custom agentic workflows
🔹 ML Frameworks — TensorFlow, PyTorch, Scikit-learn, Azure AI SDKs
🔹 ML Techniques — Classification, Regression, Clustering, Recommendation Systems, Time Series, Predictive Modeling, Gradient Boosted Trees, Random Forests, NLP, A/B Testing
💻 Engineering Stack
🔹 Languages — Python, JavaScript/TypeScript, Node.js, React.js, Next.js
🔹 Backend — Flask, Django, Flask-RESTful, REST APIs, GraphQL, SQLAlchemy
🔹 Databases — MongoDB, MySQL, AWS RDS, Elasticsearch, S3, HDFS
🔹 Cloud & DevOps — AWS (Lambda, EBS, EMR, S3, RDS), Docker, Linux (RHEL/CentOS/Ubuntu)
🔹 Distributed Systems — Parallel Computing, MapReduce, Open MPI, OpenMP
🔹 Tools — Git, SVN, WandB, Plotly, BeautifulSoup, Eclipse
🛠 Recent Projects
🔸 AI-Powered LMS Platform — course curation, AI-generated content, automated curriculum paths
🔸 AI-Native CRM — every module powered by LLMs: lead scoring, auto-drafting, pipeline intelligence, conversational search
🔸 Life Simulation Mobile App — generates photorealistic imagery and video of a user aging from childhood to old age using multimodal AI
🔸 Custom RAG + Agentic Chatbots — for domains ranging from customer support to internal knowledge retrieval
How I work:
I don't cut corners. I ask the questions most developers skip — what happens when this scales? what does this cost per user? where will it break? — and I build accordingly. Code quality, documentation, and clean architecture aren't nice-to-haves for me; they're the default.
If you're building something AI-first and want a partner who can translate a vague idea into a shipped product — and push back when something isn't going to work — send me a message. Share your brief, a rough concept, or even a problem you're stuck on. I'll reply with a clear, opinionated next step.
Keywords: Artificial Intelligence, Machine Learning, LLM, Large Language Models, GPT, Claude , Anthropic Claude, LLaMA, OpenAI API, AWS Bedrock, Google Vertex AI, Agentic AI, AI Agents, Multi-Agent Systems, RAG, Retrieval-Augmented Generation, Vector Database, Vectorization, Embeddings, Conversational AI, Chatbot Development, Context-Aware Chatbots, Multimodal AI, Voice AI, NLP, Natural Language Processing, Python, Flask, Django, Node.js, React.js, Next.js, TensorFlow, PyTorch, Scikit-learn, MongoDB, MySQL, AWS, AWS Lambda, Docker, Elasticsearch, GraphQL, Stable Diffusion, DALL-E, Midjourney, ElevenLabs, HeyGen, n8n, Make, Automated workflow, LLM prompt engineering, Cursor AI, Claude Code, AI Automation, AI Integration, Solution Architecture, Predictive Analytics, Recommendation Systems, Time Series Analysis, Startup MVP, AI Product Development
OpenAI API
Claude
Artificial Intelligence
AI Agent Development
AI Development
Python
Node.js
API
Machine Learning
Large Language Model
AI Bot
AI Trading
AI-Generated Code
AI App Development
AI Image Generation
AI Policy
AI Model Training
AI Model Development
Conversational AI
Retrieval Augmented Generation
Richa V.
Chandigarh, India
$25/hr
5.0
51 jobs
🌟 Full Stack Specialist 🌟MERN, MEAN, PYTHON, Artificial Intelligence
| 🚀 Over 8+ Years of Experience 🚀 | 💯 100% Customer Satisfaction 💯 | 🌐 Long-term Partner 🌐 Claude Coding, Cursor AI
Hello there! 👋 I'm Richa Vashisht , a seasoned Full Stack Developer with a passion for turning digital dreams into reality using cutting-edge technologies. With over 8 years of dedicated experience, I specialize in crafting innovative solutions tailored to diverse industry needs.
Are you in search of a dynamic expert to breathe life into your digital vision? Look no further!
------Let me walk you through my expertise------
𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
- Proficient in crafting immersive user experiences with React/Redux, AngularJS, Vue/VueX.
- Master of UI design, weaving magic with Bootstrap, Semantic UI, and Material UI.
𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁:
- Empowered by NodeJS, Express, PHP (versions 5/7), and Python for robust backend solutions.
- Frameworks like Laravel, CodeIgniter, Django, and Flask are my playground.
- I navigate databases with ease, whether it's MySQL, MongoDB, or PostgreSQL.
𝗖𝗼𝗻𝘁𝗲𝗻𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 (𝗖𝗠𝗦):
- Proficient in WordPress customisation and plugin development
- EXPERTISE WITH SHOPIFY
- Skilled in Symfony, Yii, Zend for CMS solutions
𝗔𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝗦𝗸𝗶𝗹𝗹𝘀:
- Versed in AWS services, Docker containers, and RESTful API integration
- Experienced in CI/CD pipelines using Jenkins, BitBucket, and GitHub
- Proficient in containerisation with Docker and server configurations with Apache and Nginx
𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻:
- Skilled in integrating various APIs including Mailchimp, Stripe, Facebook, Google Maps, and more
- Quick to adapt and implement new APIs with proper documentation
𝗦𝘆𝘀𝘁𝗲𝗺 𝗔𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘀𝗮𝘁𝗶𝗼𝗻
- Experienced in Linux system administration, server optimisation, and database management
- Skilled in troubleshooting web application errors, load scaling, and malware removal
- Proficient in DNS management, encryption, and Dockerizing projects for efficient deployment
• Automations
• Chatbots
• Cold Email
• Conversation Rate Optimization (CRO)
• Customer Relationship Management Systems (CRMs)
• Digital, Web & Growth Analytics
• Integrations
• Landing Pages
• Marketing Automation Strategy & Implementation
• Marketing Attribution & Conversion Tracking
• Sales & Marketing Performance Analysis
• Sales Funnels
• Workflow Operations and Automations
🏢 𝙄'𝙫𝙚 𝙬𝙤𝙧𝙠𝙚𝙙 𝙤𝙣 𝙫𝙖𝙧𝙞𝙤𝙪𝙨 𝙩𝙮𝙥𝙚𝙨 𝙤𝙛 𝙥𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙖𝙣𝙙 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙙𝙤𝙢𝙖𝙞𝙣𝙨 𝙨𝙪𝙘𝙝 𝙖𝙨:🏢
-----------------------------------------------------------------------------------------------
- Live Streaming Apps
- E-commerce Platforms
- Social Media Apps
- Financial and Nutrition Apps
- Ride Booking Platforms
- Job Finding Apps
- Real-time Chat Apps
- Travel Apps
- Healthcare and Telemedicine Solutions
- Education and E-learning Platforms
- Property and Real Estate Management Systems
- Event Management and Ticketing Platforms
- Food Delivery and Restaurant Management Solutions
- Customer Relationship Management (CRM) Systems
- Inventory and Supply Chain Management Apps
- Gaming and Entertainment Platforms
💻 Machine Learning Model Development
💻 Natural Language Processing (NLP) Solutions
💻 AI Consulting and Strategy
💻 Blockchain, Ethereum, Solididty, Solana, Crypto Exchange
💻 MERN Stack (MongoDB, Express.js, React, Node.js)
💻 MEAN Stack (MongoDB, Express.js, Angular, Node.js)
💻 WordPress, WooCommerce, Shopify
💻 React/React Native
💻 Artificial Intelligence (GPT, LLAMA, Stable Diffussion, Anthropic -Claude)
💻 HTML5, CSS3, AMP, JS, JSP, Servlet, XML, Bootstrap, Material Design, SASS or SCSS
💻 SQL, NoSQL (RDS, MongoDB, DynamoDB)
Ready to transform your app idea into a reality? Let's collaborate and create something extraordinary together! 🚀 Contact me today to discuss your project requirements. 📲
CSS
HTML
JavaScript
jQuery
Node.js
Vue.js
Laravel
PHP
Payment Gateway Integration
RESTful API
React
Python
LLM Prompt
AI Development
AI App Development
AI Mobile App Development
AI Model Integration
Natural Language Processing
API
Large Language Model
Jyoti T.
Chandigarh, India
$20/hr
4.8
243 jobs
I've 8+ years of working experience with Linux server administration and provide Remote Server Installation/configuration support.
- AWS
- Docker
- Linux Server Administration.
- WHM/Cpanel and Plesk Expert.
- Google Cloud Engine.
- DirectAdmin server setup and Migration.
- LAMP Administration.
- Cloudflare Expert
- Godaddy,Digital Ocean,1and1,Linode,AWS,Rackspace,Bluehost etc. Expert
- SSL installation and configuration.
- G Suite (Google Apps for work) Setup.
- ZOHO email setup
- Office365 setup
- DNS (Nameserver,A,MX,TXT,CNAME,SRV, etc setup)
- Mail Services management (Exim, Sendmail, Qmail, Postfix).
- Asterisk/Elastic and VOIP administration.
- Server Migration (WHM,Plesk,Cpanel,Rackspace,Digital Ocean,Godaddy etc).
- CMS (wordpress | joomla | Drupal | Magento) installation/configuration.
- Database Administration (MySQL)
- Firewall Installation/Configuration.
- AWS WorkMail Setup and configuration.
- Web services configuration (Apache, Nginx and others).
- VPN,VOIP,FTP,DNS,VLAN.
- Visualization (OpenVZ | VirtualBox | Xen | VMWare |Hypervisor)
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