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Mariusz O.

@european74

5.0
46

6.0

6.0

100%

EMAIL EXPERT: MailChimp, Hubspot, Salesforce, ...

$25 USD / Hour

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Flag of

Poland (4:50 AM)

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Joined on September 9, 2010

$25 USD / Hour

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I specialize in creating mobile-responsive emails, and templates that are Dark Mode ready for various platforms such as MailChimp, Salesforce, HubSpot, Campaign Monitor, Constant Contact, SendGrid, iContact, Pardot, Klaviyo, and many others. In September 2015, I was acknowledged by MailChimp for discovering bugs in their new 2015 templates, which helped the company rectify these issues. I am a certified MailChimp Partner Program member, and MailChimp incorporates my HTML/CSS code that correctly renders in Outlook for client emails. My Upwork stats: ★ Over 1,700 highly satisfied clients ★ Total earned: Over $600,000 ★ Total jobs: 4,000 ★ Total hours worked: 14,000 ★ Member of 31 Upwork Talent Cloud Groups (Microsoft, J&J, Unilever, Netflix, etc.). ★ 14+ years of experience in designing and coding email templates. CERTIFICATES: ★ HubSpot Marketing Software Certification (Provider: Hubspot) ★ Hubspot Contextual Marketing Certification (Provider: Hubspot) ★ Hubspot Email Marketing Certification (Provider: Hubspot) ★ Python Certified (Provider: Alison) ★ Mailchimp Certified (Provider: Mailchimp) ★ "Salesforce for Admins" Certificate (Provider: Linkedin) ★ "Managing DNS Essential Training" Certificate (Provider: Linkedin) ★ "Advanced CSS Media Queries" Certificate (Provider: Linkedin) ★ Google Ads - Measurement Certification (Provider: Google) My biggest CLIENTS: ★ Microsoft, Unilever, Netflix, Toyota, Hyundai, Adobe, BBC, LG, Renault, Fuji, Facebook, Instagram, 3M, Sony, Coca-Cola, Dulux, GLS, Amazon Prime Video, Bayer, Meta. My major SERVICES include: ★ DESIGN & CODE custom email templates, campaigns, automations ★ Programming modules for HubSpot (HubL), Salesforce (AMP Script), Marketo ★ Email deliverability (Setup DKIM / SPF / DMARC) ★ Litmus tests My English is fluent. I lived and worked for three years in Ireland (Roscommon). SKILLS: Expert Level: HTML5, CSS, Photoshop, Figma, Illustrator, inDesign, AMPscript Average level of knowledge: Python, JavaScript

Verifications

On time

99%

On budget

97%

Accept rate

100%

Repeat hire rate

10%

Portfolio

Portfolio

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5.0 · 46 Reviews
46 Reviews
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Brian T.

5.0

$934.22 USD

6 years ago

Project for Mariusz O. -- 3

Mariusz is a great guy. Would highly recommend.

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Brian T.

5.0

$1,364.31 USD

7 years ago

Project for Mariusz O.

Did a great job on time and on budget.

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Vanessa L.

5.0

$170 SGD

7 years ago

Project for Mariusz O.

Everything went smoothly

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Jeffrey O.

5.0

$149.10 USD

7 years ago

Project for Mariusz O. -- 2

Mauriusz was an absolute professional. We approached him for a corporate newsletter to be created for Mailchimp. Mariusz gave us exactly what we asked for. Definitely will be using him again.

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Brian T.

5.0

$5,166.01 USD

8 years ago

Project for european74

Mariusz O. is great and very professional. I highly recommend his services. [12 April, 2016] Thanks for the great job! [29 April, 2016] Great job! Thank you! [01 June, 2016] Great job as always! Thank you. [01 August, 2016] Did a great job as always. [30 September, 2016] Great Job as always. [04 November, 2016] Great job as always! Thank you. [05 December, 2016] Great Job. [03 January, 2017] Great job. Thanks you! [06 April, 2017] Great job as always!!! Thank you. [06 April, 2017] Great job as always!!! Thank you. [06 April, 2017] Great job as always!!! Thank you. [01 June, 2017] Thanks for the great job as always! [01 June, 2017] Thanks for the great job as always!! [01 June, 2017] Thanks for the great job as always!! [01 August, 2018] Great job Mariusz! Thank you so much. Brian [04 September, 2018] Thank you for the great job as always!

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Experience

Email Developer - Full time freelancer

Aug, 2010 - Present

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15 years, 10 months

Creative License

Aug, 2010 - Present

•

15 years, 10 months

I work as an email developer through Upwork, primarily focusing on creating designs and converting those designs into email templates. My Upwork stats: ★ Over 1,700 highly satisfied clients ★ Total earned: Over $600,000 ★ Total jobs: 4,000 ★ Total hours worked: 14,000 ★ Member of 31 Talent Clouds

Aug, 2010 - Present

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15 years, 10 months

Education

Akademia Swietokrzyska im. Jana Kochanowskiego w Kielcach

1995 - 2000

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5 years

Master of Science in Marketing and Management

Flag of

Poland

1995 - 2000

•

5 years

Qualifications

"Google Ads - Measurement" Certificate

2024

Google

As described by Google, the holders of the Google Ads - Measurement Certification are able to measure and optimize digital ad performance using Google’s measurement solutions. They understand the metrics that matter and can turn key insights into action to improve Google Ads performance and make an impact on their business. http://www.creativelicense.eu/certificates/google-ads-cert.jpg

2024

"Python" Certificate

2024

Alison

I have successfully completed a Python course and have been awarded a certificate. The course concluded with an examination, which I passed with a score of 83% https://alison.com/certification/check/2y10r923NK9CWPfJhvEq4vtOuG0kZujDv09PNHcH5YMPOzS9RRZLlm

2024

"Mailchimp Foundations" Certificate

2020

Mailchimp

This certificate verifies completion of the foundational certification and demonstrates comprehensive knowledge of the Mailchimp marketing platform. It signifies proficiency in utilizing Mailchimp's tools and features for effective marketing campaign management.

2020

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