Hire the Best Technical Support Specialists
in India

✅ ABOUT ME: I am a Professional Full Time Freelancer. I have 8+ years of experience working on Windows/Linux server administration, CICD Devops ,AWS, Azure, windows/Linux troubleshooting, HyperV, proxmox servers, DNS records mapping, IIS, Domains and DNS records management, active directory, web server, webhosting, databases administrations and Mail server implementations, administrations for the mail services MS Office365, Gsuite, Zimbara and postfix . ✅ WHY ME? • Full-time Professional – I work on Upwork as a full-time freelancer. I take every project seriously and I am highly professional. • Highly responsive – I’ll always get back to you in less than 02 hours. • 100% Client satisfaction – I provide revisions and modifications even after our contract ends. • I provide accurate solutions and just as important, I can guide you to future prospects and put your project on the right track. • Good communication skills – You will find me very friendly to talk to. ========================================= #Windows Servers - clients #Linux Server - clients #Web servers - IIS, Apache, XAMPP, Nginx and Tomcat #Database Servers - MSSQL, ORACLE, MYSQL, MongoDB #Webhosting tools- Plesk, cPanel and CWP #Cloud services providers - AWS, Azure, GCP, Digital Ocean, World stream, OVH Cloud, Hetzner and Hosting raja #Hosting providers - Hostinger, Bluehost, Namecheap, Godaddy, Bigrock and Hostgator #Active Directory - setup, users creation, Centralized Management, policy creation and enhanced Security #Troubleshooting - L1, L2 Tools used ============== Github, SVN IIS,Apache,Tomcat,Nginx , Apache Kafka and Wordpress SSH, RDP, VNC, Anydesk, Splashtop and screen connect Mobaxterm,Toad,SSMS and Workbench Plesk,WHM,Cpanel Active Directory, IAM Servicenow, Redmine, Microsoft Teams and Slack Previous Clients Feedback: 1- "Karthik was an exceptional Upworker to deal with. He was responsive, communicative, knowledgeable and proactive at solving my urgent technical issue (my businesses website was down for an unknown reason) and I wouldn't hesitate to recommend him to anyone else seeking an excellent technical support specialist. Thank you Karthik!" 2- "Karthik went above and beyond to progress with a very difficult issue in a very short period of time. He is kind, hard-working, and knowledgeable." 3- "I recently had the pleasure of working with "Karthik Raja" on installing PMB Software project, and I must say it was an outstanding experience from start to finish. I highly recommend "Karthik Raja" to anyone seeking top-notch freelancing services." 4- "he provides ideas to solve our problems he is a best gem have ever met. He focused only in customer satisfaction. no negative reviews." So why wait? Just invite me to your job on Upwork so we can discuss how to make your project a success. Let’s work together and get it done!! Thanks, Karthik

L2/L3 technical support is the strongest part of my background. Most of my work has been in escalations, troubleshooting, and issue ownership — cases that were no longer straightforward and needed proper investigation. My approach is to check logs, understand system behavior, reproduce the issue where possible, document findings clearly, and coordinate with engineering when deeper analysis or a code-level fix is needed. I stay with cases through to resolution. I have worked across cloud and on-prem environments on issues involving APIs, authentication, SSO/LDAP/MFA, ETL and data workflows, storage integrations, and recurring production problems. I have also worked in Zendesk-driven environments where response quality, follow-up, and clear communication mattered alongside the technical fix. My customer-facing experience includes large enterprise organizations across the US and Europe — banking, telecom, insurance, and other high-scale sectors — where the technical issue mattered, but so did clarity, pace, and ownership. My approach on every case: understand the issue properly, gather the right evidence, keep communication clear, document what matters, and move it forward. --- TOOLING AND PLATFORMS - Support platforms: Zendesk · Jira · Salesforce · ServiceNow · Intercom - Log and diagnostic tools: Kibana · Splunk · Elasticsearch · New Relic - Identity and access: Azure AD / Entra ID · ADFS · Okta · LDAP · SAML · MFA - Cloud platforms: AWS · Azure · GCP (across supported environments) - Infrastructure exposure: Docker · Kubernetes · TCP/IP · VPN · Load Balancers - Content and storage integration: SharePoint · Box · S3 SCRIPTING, AUTOMATION, AND DATA - Python — ETL pipeline scripting, API integration, data processing, automation tooling - SQL — PostgreSQL and MS SQL Server; database-level investigation, query-driven root cause analysis - PowerShell — file system automation, metadata extraction, CSV/JSON export pipelines, operational scripting - Power Query (M) — multi-source ETL, schema normalization, incremental refresh, reconciliation workflows - Excel VBA — orchestration, validation, reporting automation, self-service operational tooling - REST API — integration troubleshooting, structured request/response analysis, consumption scripting - Power BI — dashboard-ready data preparation, operational reporting, visualization - Automation — Zendesk and Jira triggers, webhooks, workflow automation, AI-assisted routing AI AND LLM WORK - LLM integration — built AI-assisted support automation via Zendesk and Intercom with LLM pipelines; reduced response times and improved resolution accuracy - RAG pipelines — semantic retrieval, automated validation, LLM output consistency workflows - Prompt engineering and AI workflow design for support-side automation - Apache Airflow — workflow orchestration across ETL and data pipeline projects

TOP RATED PLUS FREELANCER ⭐⭐⭐⭐⭐ Passionate and motivated resource with 10+ years of experience in a broad range of areas covering Technical & Non-Technical Customer Support, Product Management, and IT Development. My highlights include: ► Experience and Awards   - TOP RATED PLUS Freelancer - 10 + Years of experience(36000+ work hours) of working remotely with TOP IT organizations, including Fortune 500 companies - 100% Job Success Score(JSS) rating from more than 7 years in Upwork ► Qualification: Three IT Master degrees holder - Master of Technology in Computer Science & Engineering(M.Tech) degree - Master of Computer Applications (MCA) degree - Master of Science in Computer Science (M.Sc. CS) degree Diplomas: - 1 Year Advanced Post Graduation Diploma in Computer Application (APGDCA) - 3 Years Government Polytechnic Diploma in Information Technology (IT) Certifications: - Certified File Transfer Professional (CFTP) from Pro2col - Certification in Technical Support from BCI - Certification in Customer Relationship Management from Comed Society - Certification in "Technical Support Fundamentals" from Coursera - Certification in dot net programming from BCI - Certification in Hardware and Networking from BCI ► My Customer Support Skills: - Phone, Email, and Chat support - SaaS & Enterprise Product Support using industry-standard CRMs such as HubSpot, Zendesk, GoHighLevel, Intercom, and Kayako. - Customer Engagement & Follow-Ups. - Issue Escalation & Resolution in accordance with established company procedures and SLAs. - Reporting Bugs via JIRA - Contributing(adding new KB articles and updating existing KB articles) to the organization Knowledge base - Attending KPI's and team meetings - Internal Training & Knowledge Sharing with teammates - Provide recommendations for process improvement ► My Sales Skills: - B2B & B2C Sales Expertise - Outbound/Inbound Telesales, Acquisition & Retention - Lead Generation - Campaign Creation & Execution - Meets KPI-Driven Performance: Such as talk time, daily sales, and prospecting targets. - Appointment Scheduling ► My Development skills: - Help world's leading companies to build stronger businesses by taking care of their BPO processes, Such as IndiaMart, Motorola, TrekkSoft, etc - Three years experience of dot net development(desktop and web both using C#.Net and VB.net) - Zendesk apps development and setup expert. - Reporting - SQL Server Reporting Services, Crystal Report, Insights and Gooddata - Database - MySQL, Microsoft SQL Server, MS Access - Manual and Automated testing using tools such as Test complete, TestExecute, Junit, bash scripting, etc ► Digital Marketing - Adwords, FB marketing, Youtube Ads, Email marketing using Tools such as  Act-On, Marketo, HubSpot, MailChimp, Campaign Monitor, etc ► My Skillset: - Lead generation, Telesales(Inbound and Outbound), B2B, B2C, acquisition, retention - Helpdesk tools - Zendesk, GoHighLevel, HubSpot, Intercom, Kayako, - CRM - Salesforce, Zoho, etc - Communication tools - Zoom, RingCentral, Slack, Skype, Microsoft Teams, GoToMeeting, Calendly, etc - Bug tracking Tool - JIRA, Bugzilla   - Miscellaneous - Confluence, ServiceNow, GoogleApps(Drive, Sheets, Slides, etc), Asana, Trello, Amazon EC2, VDI Machines etc - Motivated self-starter and self-learner - Possess strong customer service and technical problem-solving skills

I am Vinisha, I am a professional IT Helpdesk Technician, Application Support, and System Engineer with extensive customer and technical service experience who is enthusiastic about my work. I've worked with many clients professionally from a variety of businesses for over 6 years. I am a dedicated, hard-working, fast learner, loyal, and a team player. I strive for a positive workplace, but I can also work under pressure. With 6 years of proven experience in roles such as Help Desk Technician and System Engineer, I am well-versed in various customer support capacities. My technical expertise extends to MS Office 365, Azure, Active Directory, VMs, O365 Administration, VPN, RDP, Cisco VPN, workstation setup, profile and account management, licensing, and more. Ready to take on new challenges immediately, I am eager to discuss how my skills align with your needs. I look forward to the opportunity to speak with you further.

🔥 20,000+ Hours | 300+ Jobs | Tier 3 Technical Support & System Administrator Are technical bugs, software glitches, or system downtime disrupting your business operations? I am a veteran Technical Support Engineer and Desktop Administrator with over 17 years of hands-on experience diagnosing, troubleshooting, and resolving complex IT infrastructure issues. My career is anchored by delivering enterprise-grade, Tier 3 (L3) support for global technology leaders like Sony VAIO, AT&T, and McAfee. From cross-platform desktop management to enterprise cloud environments, I provide rapid, highly reliable remote helpdesk support to ensure your business-critical systems maintain maximum uptime. 🛠️ CORE TECHNICAL EXPERTISE: =========================== • Tier 1–3 Technical Support: Advanced remote troubleshooting for proprietary software, desktop applications, operating systems, and digital products. • Desktop Support & Administration: Comprehensive system configuration, optimization, performance tune-ups, and OS patch management for Windows 11, macOS, and Linux. • Remote Endpoint Management: Fast, secure remote access and incident resolution utilizing enterprise tools like ConnectWise, TeamViewer, LogMeIn, and AnyDesk. • Cloud & Workspace Administration: End-to-end management of Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive) and Google Workspace environments. • Network & Email Diagnostics: Configuring and troubleshooting secure email deliverability (DNS, MX, SPF, DKIM, DMARC) and implementing robust multi-factor authentication (MFA) via Microsoft Entra ID (Azure AD). 🔬 DEDICATED HARDWARE & TESTING LAB: ==================================== To guarantee safe, accurate troubleshooting without disrupting your live environment, I maintain a fully equipped physical and virtual testing lab to replicate your exact issues: ✔ Operating Systems: Workstations running native Windows 11, macOS, and isolated Linux Virtual Machines (VMs). ✔ Mobile Ecosystems: Physical iPhone, iPad, and Android devices for mobile application and MDM testing. 🏆 A PROVEN HISTORY OF RELIABILITY: ================================== ✔ 17+ Years of deep, real-world IT support industry experience. ✔ 20,000+ Logged hours on Upwork with a flawless long-term job success history. ✔ Enterprise Background: - 3 Years: Technical Support Engineer for McAfee Antivirus products. - 2 Years: L3 Technical Support for SONY VAIO Computers. - 2 Years: Technical Support Specialist for AT&T ConnecTech. Whether your team needs a dedicated technical expert to clear out a backlogged helpdesk ticket queue, or you need an on-call administrator to handle an urgent system outage, I deliver elite results with zero friction.

CAREER OBJECTIVE To work as a professional in an industry where I can feel the environment of enhancing my capabilities and contribute efficiently in the progress of the company. TECHNICAL SKILLS * Technologies: Exchange Online, Mobile Device Management, AAD connect * Software: MS Office and MS Office 365 * Basic Knowledge: SharePoint Online, Office subscriptions, Office Installation, Commerce Office 365, Mail flow, Skype for Business and MS Teams