Kostadin Temelkov

Kostadin Temelkov

About

Detail

Senior UX/UI Designer | Product Designer | Visual & Design Systems Specialist
Ljubljana, Slovenia

Contact Kostadin regarding: 
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Full-time jobs
Starting at EUR75k/year ~USD88.2k/year

Timeline


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Résumé


Jobs verified_user 0% verified
  • Dun & Bradstreet
    Senior UX/UI Designer | Product Designer | Visual & Design Systems Specialist
    Dun & Bradstreet
    Jan 2010 - Jan 2026 (16 years 1 month)
    • Designed high-converting visual assets including landing pages, banners, and marketing creatives for digital campaigns • Delivered UI and visual design solutions aligned with brand guidelines across multiple digital touchpoints • Led UX and CRO strategy, improving conversion rates by +20% • Executed A/B testing across landing pages, product pages, and user funnels • Reduced page load times by up to 35%, improving both SEO performance and UX • Built and scaled a design system used across 10+ teams, improving consistency and delivery speed • Collaborated closely with marketing and product teams to align UX decisions with business goals • Mentored junior designers and improved internal design processes • Delivered high-quality design assets
  • P
    Product Designer (Visual & UX/UI) | High-Traffic Platforms & CRO
    ProPlus – CME Group
    Jan 2007 - Jan 2010 (3 years 1 month)
    • Designed and delivered visual and UI solutions for high-traffic media platforms • Conducted A/B testing, heatmap analysis, and user flow optimization • Increased engagement by +25% and traffic by up to +30% • Collaborated with editorial and marketing teams on conversion-focused visual design Key Projects • 24ur.com — redesign → +30% traffic, +25% engagement • tsn.ua, dnevnik.hr, tn.nova.cz — UX and visual optimization across multiple markets
  • A
    Project Leader | Web & Product Designer
    Asobi d.o.o.
    Jan 2002 - Jan 2006 (4 years 1 month)
    • Led end-to-end digital projects (research → UX → UI → implementation) • Designed user-centered solutions with strong focus on usability, performance, and visual quality • Delivered complete web and visual design solutions for brands and digital products Key Projects • bmw.si — UX/UI design and implementation • elansports.com — responsive UX/UI design • mini.si — full UX research and product design
Education verified_user 0% verified
  • University of Belgrade
    Bachelor's Degree in Landscape Architecture & Forestry
    University of Belgrade
    Jan 1991 - Jan 1997 (6 years 1 month)
Projects (professional or personal) verified_user 0% verified
  • Dun & Bradstreet
    https://www.dnb.com/sl-si/
    Dun & Bradstreet
    Aug 2025 - Jan 2026 (6 months)
    Project collaboration. More details in CV.
  • Dun & Bradstreet
    pi.bisnode.si
    Dun & Bradstreet
    May 2017 - Dec 2025 (8 years 8 months)
    Project collaboration. More details in CV.
  • Dun & Bradstreet
    B
    Dun & Bradstreet International Certificate of Credit Excellence
    Dun & Bradstreet, Bisnode
    May 2013 - Current (13 years)
    Project collaboration. More details in CV.
  • Dun & Bradstreet
    gvin.com
    Dun & Bradstreet
    Sep 2010 - Current (15 years 8 months)
    Project collaboration. More details in CV.
  • d
    dnevnik.hr
    Jul 2007 - Jul 2010 (3 years 1 month)
  • 2
    24ur.com
    Apr 2007 - Jul 2010 (3 years 4 months)
    Project collaboration. More details in CV.
  • A
    mini.si
    Asobi d.o.o.
    Apr 2002 - Current (24 years 1 month)
    Project collaboration. More details in CV.• Designed user-centered solutions with strong focus on usability, performance, and visual quality
Publications verified_user 0% verified
  • Figma
    A
    Dun & Bradstreet
    FAQ, Brochures, Annual report, Magazines
    Figma, ADOBE CREATIVE CLOUD, Dun & Bradstreet
    Oct 2010 - Jan 2026 (15 years 4 months)