Senior Frontend WordPress Developer

Reposted 9 Hours Ago
Be an Early Applicant
Hiring Remotely in San Jose, San José
In-Office or Remote
Senior level
AdTech • Marketing Tech
The Role
Lead the frontend development of high-impact WordPress projects, creating custom themes and components, mentoring junior developers, and optimizing performance.
Summary Generated by Built In

Who we are: 

We are a full-service agency & content studio dedicated to helping companies thrive through strategy, creativity, technology services, and human talent. We combine the latest technologies with innovative thinking to create outstanding digital solutions for our clients. 

Job purpose: 

We’re looking for a senior frontend developer with strong WordPress expertise and advanced frontend skills, especially in ReactJS. This role involves building custom WordPress themes and dynamic components that power high-performance websites for global clients. 

Job details: 

  • Location: 
    • 100% Remote – Temporary Contract (Approx. 1.5 Months) with Potential for Extension
    • Open to candidates based in Central AmericaMexico, or Colombia.
  • Schedule: Monday to Friday, 8:00 AM to 5:00 PM CR Time Zone
  • Job Type: Temporary Contract  (this is not a freelance position)
  • Language Proficiency: Spanish: C2 / English: B2+ reading, writing, and conversation
  • Availability: Immediate availability preferred.


Key Responsibilities & Duties:

  • Lead the frontend architecture of high-impact WordPress projects, ensuring scalable and maintainable solutions.
  • Own the development and optimization of custom WordPress themes and React-based components, aligning with design systems and performance standards.
  • Define and enforce coding standards, component reuse strategies, and responsive best practices across frontend projects.
  • Collaborate with UI/UX designers to translate design specs into pixel-perfect interfaces that are both accessible and performant.
  • Act as a technical mentor to junior and mid-level developers, conducting code reviews, pair programming sessions, and knowledge sharing.
  • Integrate modern frontend libraries (e.g., slider.js) and frameworks (ReactJS, Bootstrap 5) into WordPress environments while maintaining clean separation of concerns.
  • Partner with backend developers to define data contracts and ensure seamless integration with APIs.
  • Participate in technical scoping, sprint planning, and retrospectives, advocating for frontend performance and quality from day one.
  • Identify technical debt, performance bottlenecks, and proactively propose refactors or optimizations.
  • Stay updated on emerging frontend technologies, WordPress core updates, and plugin ecosystem evolutions to maintain cutting-edge delivery.

Academic Background:

  • Bachelor’s degree in Systems Engineering, Web Development, Computer Science, or related fields.
  • Certifications in WordPress, frontend development, or ReactJS are a plus.

Required Skills & Experience:

  • Minimum 5 years of hands-on experience in frontend development, with deep knowledge of WordPress architecture and custom theming.
  • ReactJS Proficiency: Demonstrated experience building scalable frontend components within WordPress environments using ReactJS (e.g., Gutenberg blocks, dynamic UI elements).
  • Advanced Stack Knowledge: Strong command of HTML5, CSS3, vanilla JavaScript, Bootstrap 5, and modern JS patterns (ES6+).
  • Tooling & Versioning: Practical experience with SVN (required), Git (preferred), and modern frontend build tools.
  • Performance Focus: Proven ability to optimize rendering, loading times, and accessibility using Lighthouse, Web Vitals, and best coding practices.
  • Quality-Driven Development: Advocate for testable, modular, and DRY code. Familiarity with unit testing and automated QA for frontend.
  • Team Collaboration: Track record of working cross-functionally with designers, PMs, and backend engineers in Agile settings (Scrum/Kanban).
  • Mentorship: Experience coaching or leading junior developers, fostering a culture of growth and continuous learning.
  • Ownership Mentality: High level of accountability and pride in delivery, treating every site and feature as a product.
  • Familiarity with accessibility testing tools such as Axe or BrowserStack and a good understanding of WCAG 2.1 guidelines.
  • Strong experience in testing UI/UX consistency, ensuring responsive design across multiple devices and browsers.
  • Windows/MacOS: In-depth knowledge of operating systems such as Windows or MacOS.
  • Communication: Excellent written and verbal communication skills. Ability to communicate technical details effectively to both technical and non-technical stakeholders.

    Nice to Have:

    • Experience deploying WordPress environments on AWS (EC2, S3, CloudFront) or similar cloud platforms.
    • Familiarity with CI/CD pipelines for automated builds, testing, and deployment (e.g., GitHub Actions, GitLab CI, Bitbucket Pipelines).
    • Knowledge of headless WordPress architectures and integration with frontend frameworks.
    • Experience with containerization tools (Docker) for local and staging environments.
    • Understanding of DevOps practices related to frontend and WordPress delivery workflows.

    Core Competencies: 

    At our company, we believe that success is not just about technical proficiency but also how you work with others and approach challenges. As part of our team, you’ll be expected to demonstrate the following key competencies:

    • Cultivates Innovation:
      • Generates useful ideas that are new, better, or unique.
      • Introduces fresh perspectives on problems, moving beyond conventional approaches.
      • Challenges the status quo and pushes for continuous improvement.
    • Collaborates:
      • Works effectively with others across the organization to achieve common goals.
      • Earns the trust and support of colleagues by being open and communicative.
    • Manages Complexity:
      • Gather data from various sources to solve complex problems.
      • Weighs the pros and cons of different solutions and assesses risks and benefits.
      • Analyzes diverse information sources thoroughly before defining problems and implementing solutions.
    • Communicates Effectively:
      • Conveys messages clearly, compellingly, and concisely.
      • Shares helpful and timely information with team members across the organization. 



        How to apply: 

        If you're passionate about building high-performance WordPress solutions and contributing to impactful digital projects across LATAM and the US, we’d love to hear from you. Please submit your updated CV along with a technical portfolio or links to relevant GitHub/Bitbucket repositories and live WordPress projects through the application form available on our careers page.


        Top Skills

        AWS
        Bootstrap 5
        CSS3
        Docker
        Git
        HTML5
        JavaScript
        React
        Svn
        Wordpress
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        The Company
        Managua , Managua
        42 Employees
        Year Founded: 2012

        What We Do

        An independent agency propelling companies forward through strategy, creativity, technology and human talent, since 2012.

        For over 12 years, our dynamic collaborations with regional and global companies have consistently pushed boundaries and yielded transformative outcomes.

        While our commercial offices are based in Costa Rica and the US our subject matter experts operate cohesively in over 8 countries of Latin America.

        Proud members of Garnier Group and Affiliate Agency of Stagwell Global

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