I’m a digital designer and front-end developer with deep expertise in UX/UI, interactive design, and responsive web experiences. I design and build high-impact marketing visuals—including animated HTML5 ads, promotional email campaigns, and landing pages—optimized for performance and deliverability. I’ve led cross-functional teams in Agile environments, managed high-volume ad and email production, and improved brand standards through reusable templates and scalable workflows. I also bring strong technical skills across HTML/CSS/JavaScript, ASP.NET, and marketing platforms like Salesforce Marketing Cloud and Litmus.

Helder Santos

I’m a digital designer and front-end developer with deep expertise in UX/UI, interactive design, and responsive web experiences. I design and build high-impact marketing visuals—including animated HTML5 ads, promotional email campaigns, and landing pages—optimized for performance and deliverability. I’ve led cross-functional teams in Agile environments, managed high-volume ad and email production, and improved brand standards through reusable templates and scalable workflows. I also bring strong technical skills across HTML/CSS/JavaScript, ASP.NET, and marketing platforms like Salesforce Marketing Cloud and Litmus.

Available to hire

I’m a digital designer and front-end developer with deep expertise in UX/UI, interactive design, and responsive web experiences. I design and build high-impact marketing visuals—including animated HTML5 ads, promotional email campaigns, and landing pages—optimized for performance and deliverability.

I’ve led cross-functional teams in Agile environments, managed high-volume ad and email production, and improved brand standards through reusable templates and scalable workflows. I also bring strong technical skills across HTML/CSS/JavaScript, ASP.NET, and marketing platforms like Salesforce Marketing Cloud and Litmus.

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Experience Level

Work Experience

Production Coordinator & Digital Advertising Designer at Best Buy Canada
January 1, 2017 - January 1, 2025
Designed and deployed 100+ animated HTML5 display ads across Google Campaign Manager, Facebook, Instagram, and TikTok. Built and tested 12+ promotional emails monthly using Litmus and Salesforce Marketing Cloud while maintaining 99.9% inbox deliverability. Managed 300+ asset deliverables per quarter in an Agile environment, achieving 100% deadline adherence. Streamlined production by building brand-compliant templates, onboarding designers, and reducing turnaround time by improving workflows. Onboarded new designers on best-practice workflows, reducing ramp-up time by 50%.
Web UX/UI Developer at Navantis Inc.
January 1, 2012 - January 1, 2015
Engineered 15+ responsive websites using HTML5, CSS3, JavaScript/jQuery, converting SharePoint CMS designs into functional ASP.NET pages with 100% compatibility. Led and mentored a 12-member cross-continental team in deploying complex technical infrastructure, improving deployment efficiency by 40%. Implemented standardized coding practices reducing QA issues by 25% across regions. Partnered with enterprise clients to define technical requirements and delivered projects on-time and under budget. Maintained 8 SharePoint CMS sites with ASP.NET integrations, achieving 99.9% uptime across IIS6/IIS7 environments.
Senior Web Producer/Designer at Direct Energy Marketing LTD
January 1, 2005 - January 1, 2012
Designed and developed responsive HTML/CSS/JavaScript templates to improve page load speeds and cross-browser compatibility. Managed corporate and customer-facing CMS websites, ensuring 99.9% uptime and seamless UX. Executed digital ad campaigns that increased click-through rates. Partnered with PMs, product teams, and stakeholders to design and launch web products supporting revenue. Supported Ontario EPCA certification by auditing IT infrastructure and optimizing 20+ critical applications for compliance.

Education

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Qualifications

Front-End Web UI Frameworks and Tools – Certificate
January 1, 2015 - January 1, 2015
HTML, CSS and JavaScript – Certificate
January 1, 2015 - January 1, 2015
Responsive Web Design – Certificate
January 1, 2016 - January 1, 2016
Code with HTML, CSS, JavaScript – Certificate
January 1, 2016 - January 1, 2016
Front-End JavaScript Frameworks: AngularJS – Certificate
January 1, 2016 - January 1, 2016
Certificate - Front-End JavaScript Frameworks (AngularJS)
January 1, 2016 - January 1, 2016
Certificate - Code with HTML, CSS, JavaScript
January 1, 2016 - January 1, 2016
Certificate - Responsive Web Design
January 1, 2016 - January 1, 2016
Certificate - Front-End Web UI Frameworks and Tools
January 1, 2015 - January 1, 2015
Certificate - HTML, CSS and JavaScript
January 1, 2015 - January 1, 2015

Industry Experience

Retail, Software & Internet, Energy & Utilities, Financial Services