The website is under construction.

Creative License

Mariusz Opalka


Design, Code, Email Delivery tests

I specialize in creating Mobile Responsive Newsletters, Templates for MailChimp, SalesForce, Pardot, Klaviyo, Active Campaigns, Campaign Monitor, Constant Contact, Aweber, iContact, and numerous others.

In September 2015, I was acknowledged by MailChimp for discovering bugs in their new 2015 Templates which helped the company to rectify these issues. I am a Mailchimp Partner Program member and MailChimp incorporates my HTML/CSS code which correctly renders in Outlook for client emails.

Creative License

Top Rated on Upwork. Mailchimp Certified & Partner. HubSpot Certified in Email Marketing.

13 Upwork Talent Clouds Member

Microsoft UTC: Web, Mobile & Software Dev | Unilever Graphic Design Talent Cloud | Netflix – Print Production: Freelancers | Premium – Sales, Marketing and Strategy | Enterprise Professionals | and other …


HTML5, CSS, JavaScript, Design for internet and printing

My Biggest Clients

I work for:
Microsoft, Unilever, Netflix, Hyundai, Adobe, BBC, LG, Renault, Fuji


I work on: Adobe Photoshop, Dreamweaver, Illustrator, InDesign, XD, LiveCycle, Flash, Premiere, After Effects



completed on Upwork website



worked on Upwork website



for design and coding project



only through Upwork website

Social Networking Sites and my Upwork profile

    My Education

    The Jan Kochanowski Swietokrzyski Academy. Kielce, Poland (E.U.)
    Master of Science (MS), Marketing and Management

    I care About my Opinion

    You can view all my feedbacks on my Upwork profile. But you need to register yourself there. Here is a screenshot with feedbacks available for registered Upwork users.