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Sabrina AlfaroSA
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Sabrina Alfaro

@sabrinaalfaro

Key Account Manager at Maildoso, where I built the KAM function from zero and manage 104 accounts.

Brazil
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At Maildoso, I built the Key Account Management function from zero and own a book of 104 accounts. I designed a three-phase rollout and created a per-client directory and knowledge base to give the team clear account context.

Before that, I ran a three-person Customer Success team covering more than 7,000 clients. I reworked case triage to bring down the open queue and handled complex DNS, DKIM, DMARC, and email setup escalations.

As a Customer Success Manager at Maildoso, I supported product evaluations and existing accounts across live chat, email, and Google Meet. I worked with engineering and product to surface recurring technical issues and help get fixes made at the platform level.

Earlier, at Atento Brasil on the Meta Project, I trained and coached up to 500 agents and helped take the daily backlog from more than 300 open cases to zero. My experience also includes search-quality and Trust & Safety review at TikTok, and I work in English and Portuguese.

Experience

Work history, roles, and key accomplishments

MA
Current

Key Account Manager

Maildoso

Sep 2026 - Present (1 month)

Owns a book of 104 accounts (about US$140K in MRR) out of a 7,000+ client base, segmented into three tiers by MRR and growth potential. Designed the KAM function from zero and got leadership buy-in for a three-phase, 60-day rollout with interim metrics.

MA

Head of Customer Success

Maildoso

Dec 2025 - Sep 2026 (9 months)

Ran a 3-person CSM team covering 7,000+ clients; reworked how cases get triaged so the open-case queue and wait times actually went down instead of growing with the client base. Handled escalations no one else could close — DNS, DKIM, DMARC, IMAP/SMTP, nameserver and automation issues, plus billing and domain disputes.

MA

Customer Success Manager

Maildoso

Nov 2024 - Dec 2025 (1 year 1 month)

Answered live chat for people evaluating the product and handled technical support for 7,000+ existing accounts — DNS, DKIM, DMARC, IMAP/SMTP, nameservers, automations. Sorted out billing, domain, and account-configuration problems over chat, email, and Google Meet, working daily in HubSpot, Jira, Stripe, Slack, Cloudflare, and DBeaver.

Education

Degrees, certifications, and relevant coursework

Cruzeiro do Sul University logoCU

Cruzeiro do Sul University

Technologist Degree, Database Management

Pursuing a Technologist Degree in Database Management.

Tech stack

Software and tools used professionally

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