Hello.
I am an
Specializing in Windows Server Administration, Networking, Cloud (AWS & Azure), Firewall (Fortinet), and Cybersecurity. I build reliable systems and help teams ship fast and safe.
Who am I?
I am an IT Engineer with proven expertise in Windows Server administration (AD, GPO, WSUS), network troubleshooting, cloud server management, and firewall configuration.
- Building stable, secure IT environments
- Leveraging AI to automate workflows
- Enhancing business process efficiency
Sanjeev Kumar
Noida, India
Dedicated to mastering the tools that keep modern businesses secure, operational, and ready for future scaling with minimal disruptions.
Skills & Tools
Featured Projects
Enterprise AD & GPO
Windows Server 2022 • Active Directory • Acronis
Fortinet 60F SD-WAN
FortiGate 60F • Load Balancing • VLANs
AI Cost Sheet Builder
Lovable AI • No-Code • Automated Workflows
GMS Website Redesign
WordPress • HTML/CSS • In-House Management
ToolForPDF Utility
Web App • Utility • Modern UI
Job Resume App
React • Tailwind • Lovable AI
Certifications
Click any card to view the certificate.
Networking Basics
IPv4/IPv6 Addressing
ViewFortinet Fundamentals
Network Security
ViewCisco CCNA
Network Fundamentals
ViewMicrosoft Azure
Fundamentals
ViewGoogle Cloud
Trust & Security
ViewComputer Networking
Networking
ViewAdvance Cyber Security
Threats & Governance
ViewMCSA
Windows Server
ViewExperience
A progressive track record in solving complex technical problems and supporting large-scale corporate networks.
IT Engineer
Grain Milling Solutions Pvt LtdPromoted from Desktop Support Engineer to IT Engineer based on technical expertise and performance.
- Managing office IT infrastructure and day-to-day technical operations.
- Providing remote IT support to factory locations and external clients.
- Administering Windows Server environments including Active Directory and Group Policy.
- Managing network infrastructure including VLAN, DHCP, DNS, and IP management.
- Configuring and maintaining Fortinet FortiGate 60F firewall, VPN, and security policies.
- Monitoring and managing cloud infrastructure on AWS and Microsoft Azure.
- Handling company website management and technical updates.
- Developing AI-based applications and automation solutions.
- Implementing cybersecurity practices and endpoint protection.
Desktop Support Engineer
Grain Milling Solutions Pvt Ltd- Provided technical support for desktops, laptops, printers, and office IT infrastructure.
- Troubleshot network connectivity issues, system errors, and software problems.
- Assisted users with installations, system configuration, and troubleshooting.
- Maintained system performance and ensured smooth daily IT operations.
Career Growth Summary
Connect for your next project
Whether you have a job opportunity, a project, or just want to say hi, my inbox is open.
Windows Server Domain Setup + GPO Automation + Backup & Recovery
Overview
Designed and implemented a modern enterprise-grade IT infrastructure using Windows Server 2022 to centralize identity management, strengthen network security, and automate administrative operations. The solution leveraged Active Directory Domain Services (AD DS) integrated with DNS for seamless authentication and name resolution across the organization.
A structured Organizational Unit (OU) hierarchy was created to organize departments efficiently and enable precise policy application. Group Policy Objects (GPOs) were implemented to standardize configurations, enforce security policies, and reduce manual IT effort.
Additionally, a reliable backup and disaster recovery strategy was implemented using Acronis Cyber Protect Cloud, ensuring data protection, quick recovery, and business continuity.
Project Gallery
Server Dashboard
Centralized overview of Windows Server roles, local server configuration, and overall system health.
Active Directory Setup
Organized OU hierarchy tailored for departmental segmentation and role-based access management.
Group Policy (GPO)
Automated rules enforcing organizational security policies, mapped drives, and USB restrictions.
Acronis Cyber Protect
Comprehensive backup plans and disaster recovery configuration ensuring complete data protection.
Secure File Sharing
Centralized network storage with strict NTFS permissions applied via Active Directory groups.
Print Management
Enterprise print servers set up and mapped automatically to designated departmental users.
Fortinet 60F SD-WAN Deployment
Project Overview
Engineered and deployed a highly resilient, enterprise-grade network architecture utilizing a Fortinet FortiGate 60F firewall. This project was centered on transforming the organization's network into a highly available, secure, and optimized infrastructure capable of supporting seamless corporate operations and mitigating modern cyber threats.
Key Technical Implementations:
- SD-WAN & High Availability: Integrated dual ISP links (Jio and Spectra) into a robust SD-WAN architecture. Configured intelligent load balancing and automated failover routing to guarantee zero-downtime connectivity and optimize bandwidth for mission-critical applications.
- Strategic Network Segmentation: Designed and deployed isolated VLANs to separate corporate departments. This logical segmentation prevents broadcast storms, significantly minimizes the internal attack surface, and enables precise, department-level bandwidth allocation.
- Next-Generation Firewall (NGFW): Implemented comprehensive security protocols including strict IPv4 traffic rules, advanced intrusion prevention (IPS), deep application control, and stringent web filtering to actively block external threats and unauthorized access.
- Centralized Management & Monitoring: Leveraged the FortiOS dashboard to establish real-time visibility into the security fabric, active network sessions, and overall system health, allowing for rapid incident response and proactive maintenance.
The successful deployment of this infrastructure significantly reduced network latency, eliminated single points of failure, and established a fortified, future-proof security perimeter for the organization.
Project Gallery
Firewall Dashboard
Overview of FortiGate 60F system health, security fabric, and active network sessions.
SD-WAN Configuration
Multi-WAN setup with Jio and Spectra lines configured for load balancing and automatic failover.
Security Policies
Strict IPv4 policies regulating traffic flow, web filtering, and application control.
AI Cost Sheet Builder & Other Apps
AI Cost Sheet Builder
Built a no-code web application at Grain Milling Solutions using Lovable AI to automate cost sheet generation. Integrated secure login, automated calculations, and PDF/Excel export.
More Lovable AI Apps
BuildResume
An AI resume builder that helps users create modern and professional resumes. Simple, fast, and easy to use for job-ready output.
HappyNote
A clean notes app for writing and organizing daily tasks quickly. Helps users stay productive with a smooth interface.
My Moments
A personal moments app where users can store important memories securely. Includes authentication for privacy and controlled access.
Website Redesign & In-House Management
Overview
Successfully transitioned the company’s primary website (www.gmsdelhi.com) from a third-party web development agency to a fully in-house managed platform. This initiative involved a complete structural redesign, content overhaul, and ongoing technical management to ensure the digital presence aligned perfectly with the company's brand identity.
Live Website Preview
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ToolForPDF | Free Web-Based PDF Utility
Overview
Designed and developed a comprehensive, completely free web application to simplify everyday PDF management. I built this tool to provide users with a fast, seamless, and cost-free alternative for handling PDF files without the hassle of paywalls or intrusive advertisements.
Key Features
- 100% Free & Accessible: Built from the ground up to be a completely free resource for the community, ensuring high-quality PDF tools are accessible to everyone.
- Modern UI/UX: Features a clean, minimalist interface optimized for both desktop and mobile devices, ensuring an intuitive user experience.
- Client-Side Processing: Engineered to process files securely in the browser, reducing server load and ensuring user data privacy.
Live App Preview
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Job Resume | Automated ATS-Friendly Builder
Overview
Job Resume is a high-performance web application designed to democratize the resume-building process. It transforms the daunting task of resume formatting into a seamless, automated experience. By focusing on a "content-first" philosophy, the app allows users to input their professional history through a structured interface while the engine handles complex layout logic and ATS (Applicant Tracking System) optimization.
Key Technical Features
- Dynamic Data Rendering: Built a reactive input system that syncs user data instantly with a live document preview, ensuring "what you see is what you get."
- Professional Template Engine: Developed a collection of minimalist, high-conversion templates designed specifically to pass through modern recruitment software filters.
- Intuitive UX/UI Flow: Engineered a multi-step form architecture that reduces "blank page syndrome" by breaking the resume down into digestible sections.
- One-Click Export: Integrated a robust PDF generation engine that preserves typography and layout integrity across all devices and screen sizes.
- Mobile-First Architecture: Optimized the entire build for mobile responsiveness, enabling users to make last-minute edits to their professional profiles directly from their smartphones.
Impact & Problem Solved
Traditional word processors often lead to formatting errors and broken layouts when adding new content. Job Resume solves this by decoupling content from design. The result is a tool that saves users hours of manual adjustment, providing a polished, recruitment-ready document in under 10 minutes.
Live App Preview
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