Principal Software Engineer
Software Engineer Specialist
Software engineer with 20+ years of experience building SaaS products using React, Node.js, PostgreSQL, and distributed architectures. I specialize in backend systems, API design, frontend applications, developer tooling, and scalable cloud infrastructure.
I value simplicity, maintainability, and performance over unnecessary complexity, focusing on software that remains reliable as products and teams grow.
Building software since 2004.
Best Regards,
Dellean Santos
Role: Software Engineer - Next.js/React Specialist
I led the migration of the company website from Webflow to a modern stack built with Next.js and a headless CMS, integrating all of the company's tools through their APIs. As a result, we strengthened our SEO and AEO, doubled organic traffic, and shipped a range of new features.
Role: Senior Software Engineer - React Specialist
I help businesses increase sales and streamline operations by migrating the e-commerce site to a more modern stack, seamless API integrations, and intuitive, conversion-focused user experiences.
Role: Senior Software Engineer - React Specialist
As a Senior Frontend Engineer, I am responsible for spearheading the development of dynamic and responsive user interfaces, Allocated to an American client, developing internal tools and product return management software for e-commerce and APIs integration.
Role: Senior Software Engineer - React Specialist
As a seasoned Senior Frontend Engineer adept in React, my primary focus is crafting visually impressive and SEO-optimized user interfaces that elevate our web applications' search engine visibility. My role revolves around translating design concepts into efficient code, utilizing my deep understanding of frontend technologies to ensure excellent performance, responsiveness, and user engagement. With a keen eye on SEO principles, I collaborate closely with cross-functional teams, lead technical initiatives, and architect components that not only enhance user experiences but also bolster our applications' search engine rankings.
Role: Senior Software Engineer - Full Stack
I am responsible for driving the technological vision and strategy of the company. My role involves overseeing the development and implementation of cutting-edge technical solutions that align with our business goals. I lead the technology teams, fostering innovation, and ensuring the scalability, security, and efficiency of our systems. With a keen eye on emerging trends, I guide the company's digital transformation, enabling us to stay ahead in a rapidly evolving technological landscape.
Role: Senior Software Engineer - React Specialist
As a Frontend Developer in a dynamic digital marketing agency, I specialized in creating captivating landing pages and seamless content management system (CMS) integrations. Leveraging my expertise in HTML5, CSS, and JavaScript, I transformed marketing concepts into engaging, visually appealing web experiences that drove customer engagement and conversions. My role involved collaborating closely with marketing teams to bring their creative visions to life, ensuring brand consistency and optimization for search engines. I excelled in crafting user-friendly interfaces that not only met client expectations but also surpassed them, contributing to the agency's success in delivering impactful marketing solutions.
Role: Senior Software Engineer - React Specialist
I was the first Frontend engineer hired by the company, responsible for developing and maintaining the entire Product Interface (SAAS), as the oldest employee I had a relevant role in the decision-making process and in hiring all other members of software engineering, management of the team, tasks and alignment with the decisions of the product vision, lectures and guardian of culture.
Role: Senior Frontend Developer
In my role as a Landing Page Developer at a digital marketing agency, my primary focus was creating effective landing pages for sales campaigns. Using my skills in HTML5, CSS, and JavaScript, I designed and developed landing pages that were straightforward, visually appealing, and conversion-driven. My work involved close collaboration with the marketing team to ensure the landing pages aligned with the campaign objectives and resonated with the target audience. I contributed to the agency's success by delivering landing pages that streamlined the user experience and contributed to increased sales and lead generation.
Role: Frontend Developer
As a WordPress Theme Developer, I specialized in crafting versatile and customized WordPress themes. With a keen eye for design and a strong grasp of PHP, HTML, CSS, and JavaScript, I developed themes that enhanced the functionality and aesthetics of WordPress websites. My work involved collaborating closely with clients and designers to translate their unique visions into functional themes that aligned with their branding and user experience goals. I took pride in delivering WordPress themes that empowered website owners with flexibility, scalability, and a distinct online presence.
Role: Frontend Developer (Trainee)
Responsible for converting Photoshop layouts into HTML pages, email marketing templates, and themes for Joomla, Drupal, and WordPress.