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Professional Experience

5+ years building scalable web applications across fintech, e-commerce, and enterprise software. Proven track record of delivering measurable results and leading high-performing teams.

Senior Frontend Developer

OrchardTek

USA

February 2025 - Present

Full-time

Key Achievements

  • Responsible for integrating SalesAI services into the official application for the HubSpot Marketplace

  • Contributed to the development of Custom Actions to enable seamless integration of SalesAI's features with HubSpot workflows

  • Supported testing efforts to ensure the reliability and proper functionality of the services and their integration

  • Led the development of the Travel More platform and administrative panel using Next.js, Chakra UI, and TypeScript, resulting in a modern and scalable application

  • Designed and implemented the Hoppy App Administration Panel with advanced features like 2FA authentication and user, offers, venues and reports management using Angular and Tailwind

  • Managed architecture design, technology selection, and module development at OrchardTek clients, a remote-based startup in the United States

  • Led the development of the Maxx Property project using Next.js and Chakra UI. Designed and implemented a fully modular architecture, creating reusable components, layouts, and containers that allowed the replication and customization of 50+ websites

  • Mentored the team behind the Little Big Engine project, helping members learn and adopt Webflow as a no-code platform. Led the creation of the project's UI design system and monitored the progress of the team to ensure high-quality deliverables

Technologies

Next.jsChakra UITypeScriptAngularTailwind CSSReact.jsZustandReact HooksAWSAmazon CloudFrontNgRxAWS S3Amazon Route 53Angular MaterialE-CommerceShopifyBigCommerceWebflowreact-queryAI AgentsHubSpotReact HooksReact.jsGitHubMaterial-UI

Senior Frontend Developer

Applaudo

El Salvador

August 2024 - January 2025

Contract

Key Achievements

  • Contributed to the development of the Google Aduanas project in El Salvador, creating the landing page and specific views for procedures 13 and 56 related to merchandise processing

  • From the project's inception, supported technical decision-making on architecture and technology selection

  • Assisted the team with code reviews, testing, accessibility improvements, and ensuring the platform's responsiveness

  • Contributed developing the platform's administrator version and adapted it for various user versions

  • Achieved 90% test coverage using Karma and Jasmine

  • Maintained 85+ Lighthouse performance scores consistently

Technologies

AngularNgRXPrimeFlexPrimeNGFormlyKarmaJasmineTypeScriptHTML5Business RequirementsDesign SystemsFront-End DevelopmentVersion ControlMentoringTailwind CSSCSS

Senior Frontend Developer

Yalutec

Guatemala

October 2023 - August 2024

Full-time

Key Achievements

  • Led the upkeep, problem-solving, optimizing the actual and old code base to implement all type of payment processor systems such as Krezko, Akis, Zigi in Guatemala, T1 Pagos in Mexico, and Sinpe Móvil in Costa Rica, Azul in Dominican Republic and more

  • Responsible for updating and migrating project libraries to newer versions, as well as restructuring old projects used by customer support team

  • Worked on implementing enhancements to the company's graphic line and creating the new version of the UI kit used in projects, along with its implementation

  • Led the creation of a new platform for the clients who use services, which includes dashboards, user management, metrics, status checks, transaction data, and the templates sent in users' emails and purchase receipts

  • Developed a new project as a testing platform accessible to both Tech and non-Tech members of the company

Technologies

AngularS3Version ControlCode ReviewTailwind CSSJestSASSAngular CLITypeScriptAmazon CloudFrontRxJSAmazon Route 53Angular MaterialHTML5CSSPayment Processing Systems

Frontend Web Developer

Golance

USA

July 2023 - September 2023

Freelance

Key Achievements

  • Actively involved in enhancing the Golance platform, implementing new features and designing innovative pages

  • Undertook a critical migration task, transitioning the older AngularJS client to Vue and migrating from Vue.js 2 to Vue.js 3

  • Migration improved the platform's performance and ensured seamless user experiences

  • Created SEO-friendly marketing pages with enhanced metrics

Technologies

Vue.jsAngularJSJavaScriptFront-End DevelopmentObject-Oriented Programming (OOP)Version ControlCode ReviewTailwind CSSWebpackVuexCSSGitWebflowHTMLGitHub

Frontend Web Developer

Webtrack

Guatemala

May 2023 - September 2023

Freelance

Key Achievements

  • Successfully integrated video streaming service from a GPS manufacturer, allowing for customized GPS installations based on individual client needs

  • Implemented a cutting-edge real-time video visualization tool, providing users with convenient access to live video feeds

  • Streamlined the video viewing experience by incorporating user-friendly video players across multiple platform screens

Technologies

React.jsMaterial-UIJavaScriptFront-End DevelopmentObject-Oriented Programming (OOP)Version ControlWebpackBootstrapRedux.jsReact HooksCSSTypeScriptHTMLGitHub.NET FrameworkHTML5Video StreamingGPS Integration

Frontend Engineer

Allied Global Technology Services

Guatemala

June 2022 - June 2023

Full-time

Key Achievements

  • Successfully implemented Apple Pay in G&T Bank's app using Ionic and Angular, earning 100% certification score

  • Created 50% of reusable components for new card tokenization system

  • Increased test coverage to 35% with strategic automated testing

Technologies

IonicAngularApple Pay IntegrationBanking SystemsTypeScriptCordova

Application Developer

TELUS International Digital Solutions

Guatemala

February 2022 - May 2022

Internship

Key Achievements

  • Successfully completed a rigorous bootcamp focused on React.js, Redux, and Node.js + Express, learning from some of the best professionals in the field

  • Gained a deep understanding of these powerful technologies and developed proficiency in building full-stack web applications

  • Actively participated in maintaining a few projects and providing support to other team members

  • Enhanced problem-solving and teamwork skills while gaining valuable practical experience in working on real-world projects

Technologies

React.jsRedux.jsNode.jsExpress.jsJavaScriptFront-End DevelopmentObject-Oriented Programming (OOP)Version ControlSQLWebpackJestReact HooksCSSTypeScriptHTMLGitHubstyled-componentsMaterial-UIHTML5JWTMongoDB

Frontend Web Developer

Startrack SA

Guatemala

July 2021 - November 2021

Internship

Key Achievements

  • Successfully developed a robust internal app that retrieved data from an API and incorporated complex app logic

  • Used powerful technology stack of MobX, CSS3, React.js, JavaScript, HTML5, and TypeScript

  • Under mentorship gained hands-on experience in programming, problem-solving, and executing projects from start to finish

  • Made several improvements in their tracking platform and design system

  • Completed various certifications in the technology stack, enabling proficiency in building web applications

Technologies

React.jsMobXJavaScriptFront-End DevelopmentObject-Oriented Programming (OOP)Version ControlWebpackGitLabReact HooksCSSTypeScriptHTMLHTML5Design Systems

Fullstack Android Developer

Prosperity Business Consulting

Guatemala

January 2021 - May 2021

Internship

Key Achievements

  • Developed the app using Node.js, Express.js, Kotlin, PostgreSQL, and Android technologies

  • Responsible for infrastructure design, database implementation, and UI design

  • Successfully created the prototype, development plan, backlog, app design, and development

  • Worked closely with a small team, delivered on project milestones and ensured that timelines were met

  • Successfully completed the first phase of the app and put into practice knowledge and skills in a real-world project

Technologies

AndroidNode.jsExpress.jsPostgreSQLKotlinGitGitHubScrumSoftware Development

Testimonials

What colleagues and clients say about working with me

"I had the privilege of working with Josue Lopez during his time as a software developer on our team, and I can confidently say he is a talented, reliable, and solutions-driven professional. His proactive approach to problem-solving and collaborative spirit elevated the team's productivity and morale."

Max Hernandez

Director | Business & Property Owner Solutions

"Josue's exceptional skills in React and frontend technologies consistently impressed both our team and clients. His dedication to deliver excellence and going above and beyond project requirements made him an invaluable team member."

Ashley Valdez

Product Owner at OrchardTek

"I had the pleasure of working with Josue at Applaudo, where he consistently demonstrated exceptional expertise in building dynamic, responsive web applications using Angular, TypeScript, and SASS. His collaborative mindset and eagerness to learn make him stand out."

Alvaro Corpeño

Senior Front-end Developer at Applaudo

"I had the privilege of working with Josue David at OrchardTek, where he demonstrated exceptional leadership in responsiveness and accountability. His work consistently met the highest standards of quality, and he exceeded expectations in software delivery."

Kenny Call

Product Designer at OrchardTek

"Josué and I worked together on a project using Google technologies, where his curiosity and eagerness to learn quickly became evident. His sharp eye for detail and focus on performance make him stand out as a frontend developer."

Paola Mancía

Business Architect at Applaudo

"Josué is an extremely driven and proactive individual, eager to start his promising career in technology. I've seen his diligence, thirst for knowledge and self-improvement first-hand. Any company that decides to hire him will have a great talent."

Gustavo Granados

Enterprise Account Manager

Ready to Build Something Amazing?

Whether you're looking to create a new application, optimize existing systems, or build a high-performing team, I'd love to discuss how my skills and passion can contribute to your success.