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Nelson M.

Nelson M.

Billing & Records Specialist |EN-ES | Legal, Medical & Business Ops

Billing, records, and back-office operations running smoothly — that's what I deliver. With 7+ years of experience in administrative and operations roles, I specialize in billing review, invoicing, records management, data entry, and CRM administration across legal, medical, and business environments. What I bring to your team: * Processing and reconciling 100+ invoices monthly with high accuracy * Managing 50+ concurrent case files and tracking follow-up actions * CRM administration — clean, organized, and always up to date * Records requests, document drafting, and workflow coordination * Reporting and data management using Excel, Google Sheets, and Power BI * Bilingual communication in English (C2 certified) and Spanish (Native) I work independently, communicate proactively, and adapt quickly to new systems and workflows. Whether you need someone for a one-time project or ongoing part-time support, I deliver organized, accurate work on time. Let's talk about how I can support your operations.

🇸🇻San Salvador, El Salvador$15/hr100% JSSSince Jun 2026

Earnings and projects

MRR
$2.4k

Last 6 months ÷ 4.3 months active (since Jun 2026)

World#17,812 / 412k
🇸🇻Country#44 / 839
Revenue, last 30 days
$2.5k

Last 6 months: $10k

World#15,875 / 412k
🇸🇻Country#41 / 839
Total earnings
$10k

Billed in all: $11k

World#193,512 / 412k
🇸🇻Country#467 / 839
Per project
$10k

$10k in the last 6 months

World#15,222 / 412k
🇸🇻Country#75 / 839
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇸🇻Country#188 / 839
Projects in all
1
0% fixed100% hourly
World#360,671 / 412k
🇸🇻Country#600 / 839

Earnings, last 30 days

$10.9k+$2.5k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$8k$10k$12kOct 8Oct 23Nov 7

Skill rankings: Top 2% in Email Management

Ranked by MRR among everyone on Upwork with the skill.

  1. #18Records Management376 freelancers · 🇸🇻 #1Top 5%
  2. #23Case Management585 freelancers · 🇸🇻 #1Top 4%
  3. #40Electronic Health Record440 freelancers · 🇸🇻 #1Top 9%
  4. #46Medical Billing970 freelancers · 🇸🇻 #1Top 5%
  5. #102Invoicing2,164 freelancers · 🇸🇻 #1Top 5%
  6. #120Email Management4,968 freelancers · 🇸🇻 #2Top 2%
  7. #130Calendar Management4,894 freelancers · 🇸🇻 #2Top 3%
  8. #133HIPAA1,315 freelancers · 🇸🇻 #1Top 10%