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I'm K. Kostadinov, a web developer and content manager with over 15 years of hands-on experience in web project development, content moderation, and image/data processing. I specialize in managing domain names, hosting, and non-voice customer support, delivering reliable and privacy-conscious digital workflows. Fluent in English and Bulgarian, I thrive in remote and on-site roles, adapting quickly to evolving tech stacks and delivering targeted digital content. I have a proven track record across WordPress, Joomla, and other CMS, and I bring strong SEO and content-creation skills to help projects grow organically.…I'm K. Kostadinov, a web developer and content manager with over 15 years of hands-on experience in web project development, content moderation, and image/data processing. I specialize in managing domain names, hosting, and non-voice customer support, delivering reliable and privacy-conscious digital workflows. Fluent in English and Bulgarian, I thrive in remote and on-site roles, adapting quickly to evolving tech stacks and delivering targeted digital content. I have a proven track record across WordPress, Joomla, and other CMS, and I bring strong SEO and content-creation skills to help projects grow organically.

K. Kostadinov

Web Developer, Front-End Developer, Web Designer, +4

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I'm K. Kostadinov, a web developer and content manager with over 15 years of hands-on experience in web project development, content moderation, and image/data processing. I specialize in managing domain names, hosting, and non-voice customer support, delivering reliable and privacy-conscious digital workflows. Fluent in English and Bulgarian, I thrive in remote and on-site roles, adapting quickly to evolving tech stacks and delivering targeted digital content. I have a proven track record across WordPress, Joomla, and other CMS, and I bring strong SEO and content-creation skills to help projects grow organically.…I'm K. Kostadinov, a web developer and content manager with over 15 years of hands-on experience in web project development, content moderation, and image/data processing. I specialize in managing domain names, hosting, and non-voice customer support, delivering reliable and privacy-conscious digital workflows. Fluent in English and Bulgarian, I thrive in remote and on-site roles, adapting quickly to evolving tech stacks and delivering targeted digital content. I have a proven track record across WordPress, Joomla, and other CMS, and I bring strong SEO and content-creation skills to help projects grow organically.

Available to hire

I’m K. Kostadinov, a web developer and content manager with over 15 years of hands-on experience in web project development, content moderation, and image/data processing. I specialize in managing domain names, hosting, and non-voice customer support, delivering reliable and privacy-conscious digital workflows.

Fluent in English and Bulgarian, I thrive in remote and on-site roles, adapting quickly to evolving tech stacks and delivering targeted digital content. I have a proven track record across WordPress, Joomla, and other CMS, and I bring strong SEO and content-creation skills to help projects grow organically.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Bulgarian

Fluent

Russian

Beginner

English

Advanced

Work Experience

Freelance Website Developer - Website Maintenance - Website Management - Annotation at Worldwide Services

January 1, 2000 - Present

Provided freelance website development and maintenance for a range of projects globally. Responsibilities included website maintenance, development, web project management, front-end development, website administration, content management, content updates, product image updates, image processing, SEO, data annotation, labeling, and sorting, and other client requests.

Website Developer - Website Management - Annotation at Commerce Data Center Ltd

April 1, 2021 - December 1, 2024

EU website development, content management, content review & moderation, SEO, and IT support. Maintained responsive web applications, collaborated with UI/UX designers to translate concepts into functional interfaces, integrated front-end and back-end components, and troubleshooted and upgraded systems to improve performance and security.

Web Developer - SEO - Content Moderator - Image/Data processing and sorting at Commerce Data Center Ltd

January 1, 2000 - January 1, 2007

Areas of work included website development, administration, content management, content moderation and updates, keyword research and SEO, and data/images processing including moderating and organizing digital content and handling customer support inquiries.

Freelance – Remote Web Developer / Content Manager / AI Annotation at Self-employed / Freelance

January 1, 2007 - Present

Developed, managed, and optimized websites across various industries; Provided non-voice customer service via ticket/email systems; Conducted manual SEO and keyword implementation; Processed, edited, and sorted large sets of image and text data; Performed AI annotation and data classification tasks; Ensured strict privacy and security in all digital workflows.

Remote/EU Web Developer – Content Moderator – AI Annotation at Website Consult EU

April 1, 2021 - December 1, 2024

Oversaw web content review, moderation, and updates; Implemented SEO strategies to increase organic visibility; Reviewed and classified sensitive and social media content; Supported content quality assurance across platforms.

Web Developer – Content Moderator – Image/Data Processing at Commerce Data Center Ltd

January 1, 2010 - December 31, 2020

Led website development and content administration projects; Moderate user-generated and adult content for compliance; Delivered responsive customer support via email/tickets; Optimized websites through targeted SEO techniques; Managed visual and textual data for accuracy and structure.