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Dumitru S.

Dumitru S.

Email Marketing Specialist | Sendgrid, Klaviyo | Flows, Campaigns

I’m an Email Marketing Specialist and HTML Email Developer with 5+ years of hands-on experience working with email infrastructure, HTML templates, deliverability, integrations, and marketing technology. My strongest experience comes from working with SendGrid in a SaaS environment, where I built and maintained responsive HTML emails, worked with SPF/DKIM/DMARC, investigated deliverability and rendering issues, and supported email-related integrations and automation. I’m also Klaviyo-certified and currently expanding my hands-on work with Klaviyo flows, campaigns, and Shopify-based email automation. What I can help with • Responsive HTML email development from Figma/designs • Pixel-accurate email templates for desktop and mobile • SendGrid email templates, modules and custom HTML • Klaviyo email templates, campaigns and flows • Welcome, abandoned cart, browse abandonment, post-purchase and win-back flows • Email automation and customer journey setup • SPF, DKIM and DMARC configuration/support • Email deliverability troubleshooting • Outlook, Gmail, Apple Mail and mobile rendering issues • Dark-mode email compatibility • Email tracking, UTM parameters and campaign analytics • Troubleshooting API, webhook and ESP integrations My technical background HTML • CSS • JavaScript • REST APIs • SendGrid • Klaviyo • Postman • Git • Figma • Selenium • Grafana • Jira • Intercom I combine email development with technical troubleshooting, so I can help when a project involves more than simply building an email — for example, when templates, automation, tracking, APIs, deliverability or integrations are involved. I’m a good fit for agencies, SaaS companies and DTC brands looking for someone who can reliably build, troubleshoot and improve their email marketing infrastructure. Send me your design, email flow, ESP setup or technical issue, and I’ll take it from there.

🇷🇴Voluntari, Romania$15/hr85% JSS5.00 (1)Since Feb 2026

Earnings and projects

MRR
$348

Last 6 months ÷ 6

World#92,412 / 412k
🇷🇴Country#394 / 2,286
Revenue, last 30 days
$418

Last 6 months: $2.1k

World#67,386 / 412k
🇷🇴Country#295 / 2,286
Total earnings
$2.6k

Billed in all: $2.8k

World#310,209 / 412k
🇷🇴Country#1,761 / 2,286
Per project
$873

$1k in the last 6 months

World#134,507 / 412k
🇷🇴Country#786 / 2,286
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇷🇴Country#379 / 2,286
Projects in all
3
33% fixed67% hourly
World#304,140 / 412k
🇷🇴Country#1,816 / 2,286

Earnings, last 30 days

$2.8k+$418 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$2,250$2,500$2,750$3,000Oct 8Oct 23Nov 7

Skill rankings: Top 19% in HTML

Ranked by MRR among everyone on Upwork with the skill.

  1. #17Email Software63 freelancers · 🇷🇴 #1Top 27%
  2. #594Email Deliverability1,880 freelancers · 🇷🇴 #2Top 32%
  3. #856CRM Development2,819 freelancers · 🇷🇴 #4Top 30%
  4. #3,387Email Marketing13,760 freelancers · 🇷🇴 #10Top 25%
  5. #3,566HTML18,716 freelancers · 🇷🇴 #21Top 19%
  6. #8,021JavaScript41,428 freelancers · 🇷🇴 #46Top 19%