Hello 👋

I'm Alondra Castro Software engineer & Marketer


#React #TypeScript #User-Centered Solutions #PaidMedia

With 5+ years of experience creating scalable, user-focused applications and solving complex problems through technology, I bring a unique perspective by combining engineering and marketing expertise.


🌍 Worked Across the Globe: 🇲🇽 🇨🇴 🇦🇪 🇺🇸

About me


I’m passionate about building software that doesn’t just work but connects with people. With a background in software engineering and marketing, I specialize in delivering solutions that are functional, visually appealing, and results-driven.

From leading projects in fast-paced tech environments to designing marketing strategies that drive engagement, I blend creativity, data, and technical skills to make businesses thrive.

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Fun fact:

When I was 23, I packed my life into a suitcase and moved to Dubai, one of the boldest decisions that shaped my global outlook and problem-solving approach.

Recent work

Web Developer & Marketer, Freelance


Challenge

A PMU artist had no online presence, no website, and no way to book appointments. She struggled to attract clients and grow her business.

Solution

I built a professional website to showcase her work and services, added an easy-to-use booking system with automated reminders, and launched targeted Facebook ads with engaging creatives to reach her ideal audience.

Impact

In just 30 days, she gained 10 new clients, boosting her income and credibility. The website improved her visibility, while the booking system and ads streamlined her business and attracted steady appointments.

Tech
Facebook Ads, Copy writing, Javascript, HTML, CSS, Web development, Automation, AI

Web Developer & Marketer, Freelance


Challenge
Build a digital presence for a sustainable shaving brand and increase daily orders from 0 to 100+ orders a month

Solution
Designed high-converting websites (+40% purchases) and executed Facebook marketing campaigns (3x ROAS top-of-funnel, 20x mid-funnel).

Impact
From $0 to $10k in 30 days, 150 orders a month

Tech: Shopify, Klaviyo, Facebook Ads, Copy writing, Speaking, Javascript, HTML, CSS, Web development

Software Engineer, Zendesk Inc | USA

  • Moved a big feature from Ember.js to React.js, making the app easier to use and maintain.

  • Worked with product, marketing, and engineering teams to create features that brought in over $1M within three months.

  • Set up Datadog monitors to catch and fix problems quickly, keeping services running smoothly.

  • Helped train and onboard 5+ new engineers, boosting team efficiency and collaboration.

  • Made sure code worked everywhere by overseeing global deployments.

Tech: Javascript, Typescript, React.js, Jest, Enzyme, Ember.js, HTML, CSS, Web development, Ruby, Ruby on Rails, Cypress, RSpec, AWS, API, Docker, Datadog, Jenkins, Spinnaker, MySQL, Jira, Styled Components, internationalization (i18N), Accessibility (a11y)

Software Engineer, Synechron Inc. | Dubai, UAE & USA

  • Built a new investment tracking web app for a leading Dubai bank, providing real-time insights and improving customer engagement.

  • Contributed to Bank of America’s mobile app rebranding, integrating modern design features to enhance user experience and align with the bank’s branding.

  • Trained backend developers to implement frontend functionalities using JavaScript, enhancing cross-team collaboration and accelerating feature delivery.

Tech: Javascript, Typescript, React.js, Jest, HTML, CSS, Web development, Cypress, API, Docker, MySQL

Skills