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I am a data-driven SEO specialist and web developer with over four years of experience in web design, analysis, and optimization, with a vision oriented toward innovation and client needs. I focus on creating solutions that help optimize complex processes and scale effectively, seeking growth opportunities within dispersed data.…

Kerwyn Arias

Web Designer, Front-End Developer, Back-End Developer, +2

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I am a data-driven SEO specialist and web developer with over four years of experience in web design, analysis, and optimization, with a vision oriented toward innovation and client needs. I focus on creating solutions that help optimize complex processes and scale effectively, seeking growth opportunities within dispersed data.…

Available to hire

I am a data-driven SEO specialist and web developer with over four years of experience in web design, analysis, and optimization, with a vision oriented toward innovation and client needs.

I focus on creating solutions that help optimize complex processes and scale effectively, seeking growth opportunities within dispersed data.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Intermediate

Portuguese

Beginner

Work Experience

Chatbot Developer at Independent Project

January 1, 2025 - Present

Developed a chatbot with integration to the Evolution API for the tourism sector, using interaction flow, direct scheduling in Google Sheets, and handling conversations with AI agents via n8n integration; concept included a lightweight project management system built with video coding.

SEO Specialist at Independent Freelancer (Madrid, Spain)

January 1, 2025 - Present

Lead in the design and optimization of two financial-information web platforms; redesigned site architecture, improved performance by 40%; developed update strategy and blog content to curb negative trends; optimized AI overviews and citations (about 25% increase); removed over 500 backlinks to boost trust.

Full-Stack Developer at Freelancer (Remote) — Brazil / USA / Uruguay

January 1, 2022 - Present

Web-app design and development with cloud deployment to improve processes. Created a web application for managing job applications, improving real-time prospecting by 50% for a USA-based client; restructured an open-source app focusing on WhatsApp conversations with ticket-based verification; integrated WhatsApp Business API from scratch, optimized server load, and improved customer service by 700%, while reducing spam by 80%.

Web & App Platform Migration Specialist at Freelance / Montevideo, Uruguay

January 1, 2021 - January 1, 2022

Migrated a technology platform to modern technologies (React, PostgreSQL, AWS, REST API, Node.js), improving performance, scalability, and maintainability during the transition.