Experienced System Administrator with expertise in Windows and Linux administration, Identity and Access Management (IAM), virtualization, cybersecurity, infrastructure monitoring, and cloud-native technologies including Docker and Kubernetes. Passionate about building secure, reliable, and modern IT infrastructure.
Core Expertise
Identity & Access Management (IAM): Okta, Keycloak, and Microsoft Entra ID
Enterprise Infrastructure: Windows Server, Linux (Ubuntu), Active Directory, GPOs, and M365.
Cloud-Native & DevOps: Docker, Kubernetes, Git, and automation via Ansible & Bash.
Virtualization: VMware, Hyper-V, Proxmox, and KVM deployment.
Security & Monitoring: Wazuh threat detection, Grafana, Prometheus, and Cloudflare.
I can help with system administration, IAM, security, infrastructure monitoring, and Linux or cloud-native environments, delivering reliable and secure solutions.
System Administration
Linux System Administration
Windows Server
Microsoft Active Directory
User Identity Management
Network Administration
Docker
Kubernetes
Bash
Microsoft Azure Administration
Cloudflare
Ansible
IT Infrastructure
Technical Support
Virtualization
Server Administration
Network Security
VMWare
Microsoft Azure
Amanda M.
Nindiri, Nicaragua
$10/hr
5.0
8 jobs
Virtual Assistant and Customer Support Specialist with 12,700+ hours worked and $70,000+ earned on Upwork.
I have several years of experience supporting customers, creators, and remote teams through email and chat support, administrative assistance, research, outreach, AI data annotation, manual quality assurance, and data management.
My areas of expertise include:
• Customer Support (Email & Chat)
• Virtual Assistance & Administrative Support
• AI Data Annotation (Spanish Audio & Accent Classification)
• Manual QA Testing & Bug Reporting
• Creator Research & Outreach
• Data Entry & Spreadsheet Management
• Zendesk, Salesforce, Google Sheets, Microsoft Excel, Slack & ChatGPT
I am detail-oriented, organized, and dependable, with the ability to learn new systems quickly and adapt to different types of projects. I enjoy accuracy-focused work and communicate clearly throughout every stage of a project. Whether supporting customers, managing administrative tasks, annotating AI training data, testing applications, conducting research, or organizing data, I am committed to delivering reliable, high-quality results while meeting deadlines and following project guidelines.
Customer Service
Email Support
Administrative Support
Virtual Assistance
Online Chat Support
Lead Generation
Email Outreach
Influencer Outreach
Partnership & Collaborations Outreach
Google Sheets
Microsoft Excel
Data Entry
Online Research
Latin American Spanish Accent
AI Model Training
Data Annotation
Quality Assurance
Manual Testing
ChatGPT
Customer Support
Adarsh J.
Bengaluru, India
$10/hr
4.9
13 jobs
Hello! I'm Adarsh, a certified AWS & GCP DevOps Engineer with 5+ years of experience in building secure, scalable, and automated cloud infrastructure. I specialize in DevSecOps, CI/CD automation, Kubernetes orchestration, and cloud-native deployments that help businesses improve reliability, accelerate releases, and reduce operational overhead.
I focus on designing production-grade infrastructure with automation, security, and scalability at the core.
🔧 HOW I HELP BUSINESSES:
✓ DevOps & DevSecOps Implementation: Building secure and automated delivery pipelines for faster and reliable deployments.
✓ Cloud Infrastructure Engineering: Designing scalable AWS and Azure infrastructure based on business and application requirements.
✓ CI/CD Automation: Creating production-ready pipelines using Jenkins, GitHub Actions, ArgoCD, and AWS CodePipeline.
✓ Containerization & Orchestration: Deploying and managing Dockerized applications on Kubernetes (EKS/ECS) with high availability and scalability.
✓ Infrastructure as Code (IaC): Automating cloud provisioning using Terraform, Ansible, and CloudFormation.
✓ Monitoring & Reliability Engineering: Implementing observability and alerting solutions to reduce downtime and improve performance.
✓ Automation & Scripting: Developing Python, Bash, and PowerShell automation scripts to eliminate repetitive tasks and improve operational efficiency.
✓ Troubleshooting & Optimization: Resolving complex cloud, infrastructure, networking, and deployment issues across environments.
🛠️ TECH STACK:
→ Cloud Platforms: AWS | GCP (Expert)
→ Infrastructure as Code: Terraform | Ansible | AWS CloudFormation
→ CI/CD & GitOps: Jenkins | GitHub Actions | ArgoCD | AWS CodePipeline
→ Containers & Orchestration: Docker | Kubernetes| Helm | Istio
→ Monitoring & Observability: Prometheus | Grafana | Dynatrace | CloudWatch | EFK Stack
→ Security & Compliance: SonarQube | Trivy | GitLeaks | OWASP | AWS Secrets Manager
→ Networking: DNS | SSL/TLS | Firewalls | API Gateway | NACL | WAF | Istio
→ Automation & Scripting: Python | Bash | PowerShell | Selenium | AWS Lambda
→ OS & Platforms: Linux (RHEL, Ubuntu, CentOS) | Windows Server | Git | Jira | ServiceNow
🎓 CERTIFICATIONS:
✓ AWS Certified Cloud Practitioner
✓ Google Certified DevOps Engineer
✓ Microsoft Azure Fundamentals (AZ-900)
✓ Microsoft Certified Database Engineer (DP-300)
💡 I help organizations modernize infrastructure, automate deployments, improve security posture, and optimize cloud operations using DevOps and cloud-native best practices.
Amazon Web Services
DevOps
Infrastructure as Code
Ansible
Kubernetes
Docker
CI/CD
Python
Microsoft Windows PowerShell
Automation
Prometheus
Grafana
Terraform
Git
Claude
ChatGPT
Jenkins
Bash
Azure DevOps
Linux
Aljohn L.
Imus, Philippines
$8/hr
4.2
25 jobs
Are you looking for a versatile support professional who can seamlessly bridge the gap between high-touch customer service and meticulous backend technical operations?
I help businesses protect their customer relationships and streamline their daily workflows. Whether you need someone to manage complex technical support tickets, onboard new clients onto your platform, or keep your CRM data perfectly clean, I ensure no detail falls through the cracks.
With a strong balance of technical aptitude and empathetic communication, I step into your operations from Day 1 to manage:
● Customer Service & Email Communication: I handle high-volume email and chat queues with a warm, professional, and human tone. I excel at resolving complex issues, de-escalating customer complaints, and maintaining high satisfaction scores without relying on robotic scripts.
● Technical Support & Troubleshooting: I don't just answer basic questions—I dive deep into software, diagnose platform issues, distinguish between user error and system bugs, and coordinate with development teams to find resolutions.
● Client Onboarding & Success: I guide new clients smoothly through their initial setup and implementation journey, ensuring they understand product functionality and achieve immediate value.
● CRM Management & Data Entry: Expert in maintaining absolute data hygiene across platforms like HubSpot, Salesforce, or GoHighLevel. I log client interactions, update records, and keep your pipelines accurate.
● Order Fulfillment & Operations: Experienced in navigating e-commerce backends (like Shopify), managing product variants, updating SKUs, and coordinating with logistics systems to handle fulfillment, returns, and exchanges smoothly.
My Technical Tool Stack Includes:
• CRMs & Helpdesks: HubSpot, Zendesk, Gorgias, Salesforce, Freshdesk
• Operations & Fulfillment: Shopify, Shopify Plus, Microsoft Office, Google Workspace
• Project Management: Asana, Jira, Notion, Slack
I am highly organized, self-directed, and adapt quickly to shifting priorities in fast-paced remote environments.
Let's discuss how I can take these operational tasks off your plate so you can focus on scaling. Click the "Invite to Job" button to get started!
Email Support
Etsy Listing
Customer Support
Computer Skills
Technical Support
Customer Service
Product Listings
SEO Keyword Research
Search Engine Optimization
Magesh M.
Chennai, India
$12/hr
5.0
3 jobs
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
Data Extraction
Python
NumPy
SQL
Web Scraping
AmiBroker
Technical Support
Customer Support
Zendesk API
IT Support
Antonio Carlos Z.
Porto Alegre, Brazil
$15/hr
4.8
13 jobs
I’m an eJPT-certified Penetration Tester focused on web, API, and internal network security. I actively practice through private bug bounty programs and hands-on labs/CTFs, and I’m currently studying for the DCPT certification.
What I can help you with:
- Web & API pentesting (OWASP Top 10): auth/session issues, IDOR/BOLA, injections, XSS, access control flaws
- Internal network / AD security reviews: enumeration, attack paths, weak configs, credential exposure
- Vulnerability assessment + validation: prioritize what’s exploitable and what truly matters
- Actionable reporting: clear reproduction steps + remediation guidance your team can implement
Tooling I commonly use includes:
- Burp Suite
- Caido
- Nmap
- Metasploit
- ffuf/gobuster
- Nessus
- sqlmap
- BloodHound
- CrackMapExec
- hashcat
- Wireshark
My background includes infrastructure and security operations (Linux/Windows, firewalls, VPNs, IAM/AD), which helps me test realistically and communicate fixes in a practical way.
I also hold LPIC-1 - Linux Administrator (secondary to my offensive security track).
Linux
Linux System Administration
Metasploit
Ansible
Amazon EC2
OpenVPN
Ethical Hacking
Red Team Assessment
Wireshark
Nessus
Bash
Microsoft Active Directory
Microsoft Azure Administration
OWASP
VPN
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