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Hi, I'm Karl Cossio, a Senior Front-End Developer and Digital Experience Lead with 20 years of experience specializing in custom CMS theme development, mainly for WordPress and Shopify. I love transforming complex designs into seamless, high-performance web experiences that bring creative visions to life while aligning perfectly with content strategy. I’m passionate about optimizing workflows and refining technical processes to deliver scalable digital solutions. I co-founded a boutique digital studio where I lead full-cycle development and partner with designers to craft impactful websites for small businesses and nonprofits. I enjoy building long-term client relationships and helping businesses grow through digital transformations that improve user experience and drive revenue. When I’m not coding or designing, I’m always looking for ways to blend creativity with technical excellence to make the web a better place.…Hi, I'm Karl Cossio, a Senior Front-End Developer and Digital Experience Lead with 20 years of experience specializing in custom CMS theme development, mainly for WordPress and Shopify. I love transforming complex designs into seamless, high-performance web experiences that bring creative visions to life while aligning perfectly with content strategy. I’m passionate about optimizing workflows and refining technical processes to deliver scalable digital solutions. I co-founded a boutique digital studio where I lead full-cycle development and partner with designers to craft impactful websites for small businesses and nonprofits. I enjoy building long-term client relationships and helping businesses grow through digital transformations that improve user experience and drive revenue. When I’m not coding or designing, I’m always looking for ways to blend creativity with technical excellence to make the web a better place.

Karl Cossio

Front-End Developer, Creative Director, Designer, +2

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Hi, I'm Karl Cossio, a Senior Front-End Developer and Digital Experience Lead with 20 years of experience specializing in custom CMS theme development, mainly for WordPress and Shopify. I love transforming complex designs into seamless, high-performance web experiences that bring creative visions to life while aligning perfectly with content strategy. I’m passionate about optimizing workflows and refining technical processes to deliver scalable digital solutions. I co-founded a boutique digital studio where I lead full-cycle development and partner with designers to craft impactful websites for small businesses and nonprofits. I enjoy building long-term client relationships and helping businesses grow through digital transformations that improve user experience and drive revenue. When I’m not coding or designing, I’m always looking for ways to blend creativity with technical excellence to make the web a better place.…Hi, I'm Karl Cossio, a Senior Front-End Developer and Digital Experience Lead with 20 years of experience specializing in custom CMS theme development, mainly for WordPress and Shopify. I love transforming complex designs into seamless, high-performance web experiences that bring creative visions to life while aligning perfectly with content strategy. I’m passionate about optimizing workflows and refining technical processes to deliver scalable digital solutions. I co-founded a boutique digital studio where I lead full-cycle development and partner with designers to craft impactful websites for small businesses and nonprofits. I enjoy building long-term client relationships and helping businesses grow through digital transformations that improve user experience and drive revenue. When I’m not coding or designing, I’m always looking for ways to blend creativity with technical excellence to make the web a better place.

Available to hire

Hi, I’m Karl Cossio, a Senior Front-End Developer and Digital Experience Lead with 20 years of experience specializing in custom CMS theme development, mainly for WordPress and Shopify. I love transforming complex designs into seamless, high-performance web experiences that bring creative visions to life while aligning perfectly with content strategy. I’m passionate about optimizing workflows and refining technical processes to deliver scalable digital solutions.

I co-founded a boutique digital studio where I lead full-cycle development and partner with designers to craft impactful websites for small businesses and nonprofits. I enjoy building long-term client relationships and helping businesses grow through digital transformations that improve user experience and drive revenue. When I’m not coding or designing, I’m always looking for ways to blend creativity with technical excellence to make the web a better place.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Founder, Director of Development + User Experience at Kymera

January 1, 2005 - June 19, 2024

Co-founded and led a boutique digital studio specialized in custom web solutions for small businesses and nonprofits. Managed full-cycle development, ensuring technical excellence, design integrity, and strategic alignment with client objectives. Built and maintained long-term client relationships, guided businesses through multiple product lifecycles and digital transformations. Led development from scoping to deployment, balancing front-end precision with backend functionality. Partnered with designers to translate creative concepts into high-performance web experiences. Delivered comprehensive solutions that improved user experience, optimized workflows, increased visibility, and drove revenue growth. Oversaw site infrastructure, domain setup, and bespoke WordPress & Shopify theme and plugin development. Served a diverse client base including consumer brands, B2B organizations, and nonprofits.

Digital Design Director / Development Partner at Various

January 1, 2013 - June 19, 2024

Long-term consultant and lead developer partnering with branding and marketing agencies to architect and implement scalable digital solutions aligned with strategic goals and business objectives. Collaborated seamlessly with agency teams including project managers, strategists, designers, and developers to define requirements, optimize tech stacks, and ensure brand vision alignment. Developed high-performance websites focusing on usability, functionality, and design integrity to deliver seamless digital experiences. Acted as trusted technical partner, working directly with clients or within agency management to align development with strategic initiatives. Established and refined technical workflows for maintainability and scalability to support business growth.