Javier A Zavaleta

Javier A Zavaleta

Full Stack Developer & Automation Specialist

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A Full Stack Engineer & Automation Specialist with 5 years of experience building scalable web applications and automating enterprise workflows. Skilled in CRM integrations (Dynamics 365, HubSpot) and custom automations that reduce operational costs and improve lead capture efficiency. Proven ability to modernize websites, optimize performance (25% faster load times), and deliver automations that save hundreds of hours annually.

Age

31 years

Location

New York City, United States

Job status

Open to opportunities

Open for freelance

Yes


Skills

Technologies

Tools

Make
Livestorm
Salesloft

Methodologies

Agile Methodologies
Continuous Improvement
Project Management
A/B Testing
Communication
Teaching
Management
Data Structures & Algorithms

Languages

English (native)
Spanish (native)

Work

Full Stack Developer

February 2021 - October 2025
Employment type

Full-time

Work model

Remote

Team size

10 people

  • Modernized and maintained the company website using WordPress, HTML, CSS, JavaScript, SASS, PHP, and Bootstrap, executing multiple successful site rebrands.
  • Achieved a successful transition from ON24 to Livestorm, reducing annual costs by over 90% and leading to greater stakeholder engagement due to a seamless integration.
  • Reduced operational costs by 50% by mastering Power Automate to lead automation systems, developing projects with task efficiency to enable focus on higher priorities.
  • Developed CRM integrations for HubSpot and Dynamics 365, using JavaScript and PHP for form automation, parent– iframe communication, geolocation, and URL parameter tracking to enhance lead data quality and boost conversion accuracy.
  • Conducted cross-browser and device testing with BrowserStack, ensuring consistent functionality and responsive design across all platforms.
  • Optimized website performance through code cleanup, plugin updates, and page speed improvements, achieving 25% faster load times on key pages with New Relic.
Related skills:

Jr Full Stack Developer

January 2020 - February 2021
Employment type

Internship

Work model

On site

Team size

3 people

When working at Alzerina Jewelry, my responsibilities included:

  • Designed and maintained a Shopify eCommerce store, boosting customer engagement and conversions.
  • Coded responsive features (HTML, CSS, JavaScript, Shopify, JSON) to improve site speed and functionality.
  • Revamped the site with a modern UX/UI Design for mobile and desktop, increasing user engagement by 25%.
Related skills:

College TA

September 2015 - August 2019
Employment type

Full-time

Work model

On site

Team size

5 people

  • Mentored and tutored students in mathematics (remedial through differential equations), improving comprehension and academic performance.
  • Led classrooms of 20+ students, developing lesson plans and fostering collaboration and engagement.
  • Increased student test passing rates by 30%.
Related skills:
Teaching
Communication
Management

Projects

LeadSync Automation

LeadSync Automation

Lead and contacts automation flow
September 2025 - October 2025
Role

Designer, Architect, Developer

Category

Automation

Team size

1 person

Company

NIQ

Designed and implemented automation workflows in Power Automate to integrate Livestorm with Microsoft CRM, enabling seamless capture of leads and contacts based on event and attendee conditions. Leveraged the Livestorm API to streamline data flow, replacing a costly and inefficient legacy workflow. This solution improved lead management efficiency while reducing operational expenses.

Related skills:


References

With the ability to quickly master coding in multiple environments and platforms, Javier quickly became an essential asset to the development team. He is not afraid of a challenge and is always willing to step in to help in any given scenario. He stepped up recently by helping with several integrations. He has a broad set of skills and certifications and is a pleasure to work with.

Al Lemieux
Al Lemieux
Senior Manager, Digital Marketing at NIQ
We worked together in one team.

I’m pleased to recommend Javier for any full stack development role. I had the opportunity to work closely with him, and he consistently demonstrated strong intuition, technical curiosity, and a proactive approach to problem-solving. Nearly every task assigned to him was completed independently, and when he did need input, he always sought out the right resources rather than letting himself get stuck. Javier also has a real talent for automation. His work with Power Automate flows was especially impressive and often elevated the overall efficiency of our team. He’s a reliable, thoughtful, and highly capable developer who brings both initiative and follow-through. I’m confident he’ll be an asset to any engineering team.

Stefan Dindyal
Stefan Dindyal
Full Stack Developer at NIQ
Co-developer at NIQ

Achievements

JavaScript Algorithms and Data Structures Certificate
January 2020
Related skills:
JavaScript
Data Structures & Algorithms

Responsive Web Design Certificate
December 2019
Related skills:

Education

Bachelor of Technology in Computer Engineering Technology (BTech)

September 2016 - June 2018
Mode

Full-time

Specialization

Embedded systems, Cybersecurity, Robotics, Network Infrastructure, Internet of Things

Building on the AAS foundation, the BTech in Computer Engineering Technology advances students’ knowledge of computer-controlled systems, embedded devices, robotics, intelligent systems, automation, and cybersecurity. This multidisciplinary program integrates hardware, software, and computer networks with science, mathematics, and emerging technologies, preparing students for higher-level careers in engineering and technology-driven industries. The BTech program provides students with the skills to design, develop, and implement computer-controlled systems, IoT devices, robotics, and AI-driven applications. The curriculum emphasizes project-based learning, industry-driven coursework, and emerging technologies, ensuring graduates are prepared for engineering, software development, cybersecurity, and automation leadership roles.


Associate of Applied Science in Electromechanical Engineering Technology (AAS)

September 2015 - June 2016
Mode

Full-time

Specialization

Electronics, Mechanics, Computer Systems

The AAS in Computer Engineering Technology (CET) at City Tech provides students with a solid foundation in electronics, computing, and embedded systems. This two-year multidisciplinary program prepares students for entry-level careers in computing, electronic systems, and Information Technology (IT) while serving as the first step toward the Bachelor of Technology (BTech) in Computer Engineering Technology.


Interests

Working Out
Video Games
Soccer