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Linux System Administration Troubleshooting Ubuntu Virtual Assistant
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Marcello

@masterunix

4.9
13

3.9

3.9

88%

DevOps Linux Windows Python IT Support Helpdesk

$15 USD / Hour

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Netherlands (7:59 PM)

Joined on June 30, 2008

1 Recommendation

$15 USD / Hour

Red Hat Certified System Administrator (RHCSA) – Certificate #230-201-592 Hello! My name is Marcello and i'm a certified IT professional with over 10 years of hands-on experience in remote phone-based customer support, technical helpdesk (Tier 1 & Tier 2), cold calling, lead generation, and sales appointment setting. I excel at delivering exceptional customer experiences while proactively driving business growth through targeted outbound calls—all 100% remotely via phone, VoIP, and CRM tools. Key Strengths & Services: - Customer Support & Call Center Expertise — Handling high-volume inbound/outbound calls, resolving inquiries, managing escalations, and achieving high CSAT scores in fast-paced call center environments. - Technical Helpdesk & IT Support — First-line troubleshooting to second-line advanced resolution; ITIL-certified for best-practice incident & problem management; expert in Linux (RHCSA, LPIC-1, LPIC-2 certified) and Microsoft systems (Microsoft Certified Professional). - Cold Calling & Lead Generation — Proven success in outbound prospecting, overcoming objections, qualifying leads, setting high-quality appointments, and building sales pipelines for B2B/B2C clients across industries. - Sales & Telemarketing — Upselling, cross-selling, follow-ups, and closing support; comfortable with scripts, CRM logging (e.g., Salesforce, HubSpot basics), and performance tracking for measurable results. With a calm, professional phone presence, excellent English communication, and the ability to work flexible hours (including your customers time zone alignment with global clients), I deliver reliable, results-driven support. Past highlights include reducing ticket resolution times using ITIL processes, consistently hitting 15-25% lead conversion rates on cold calls, and maintaining 95%+ customer satisfaction in support roles. Whether you need dedicated remote helpdesk support, technical troubleshooting over the phone, or a skilled cold caller to generate qualified leads and boost revenue—I'm ready to be your trusted remote team member. Available immediately for long-term or project-based work. Let's discuss how I can support your business—message me today! Language skills: Dutch, English (fluently) Technical certifications: Linux LPIC1, LPIC2, RHCSA, Microsoft MCP certified (XP, Vista, 7, 8, 10, Server) Others: ITIL version 3 certified, Microsoft C# Programming degree

4.9 · 13 Reviews
13 Reviews
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Yousef A.

5.0

€200 EUR

9 years ago

Inspecting goods and translating

Fine attention and availability. I am looking forward to work with him again.

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Hank R.

5.0

$20 USD

10 years ago

FTP transfer a site from one hosting to another

Great guy. Helped me out immensely.

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Gregor B.

5.0

$2 USD

17 years ago

EURO Photograph(repost)(repost)

Great work

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Nelson D.

4.5

$65 USD

17 years ago

Create a Template (dreamweaver)

it was a fast delivery work by masterunix ;) A very and nice work made by him. Next time i think i'm going to stay with him again

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Experience

Red Hat Certified System Administrator

Jan, 2003 - Present

23 years, 5 months

Marcello Tech Solutions, LLC

Jan, 2003 - Present

23 years, 5 months

Linux engineering, administrator, devops etc.

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Rotterdam, Netherlands

Jan, 2003 - Present

23 years, 5 months

Education

Business School Nederland

1999 - 2006

7 years

Business management and ICT

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Netherlands

1999 - 2006

7 years

Qualifications

Red Hat Certified System Administrator

2023

Red Hat

RHCSA RHEL 9

2023

ITIL Foundation

2007

ITIL

2007

MCSA

2007

Microsoft

2007

Certifications

Dutch – Level 1

Dutch

US English - Level 1

US English

F

Foundation vWorker Member

Verifications

On time

100%

On budget

100%

Accept rate

100%

Registered Users

Total Jobs Posted

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