Senior Full Stack Engineer

Advance English B2+/C1, Development, Engineer, Full Stack, Hybrid, Node.js, React.js, SQL
Costa Rica
May 30, 2025
Full Time
Urgent

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Job Description

As a Senior Full Stack Engineer you’ll contribute to architectural decisions, mentor peers, and collaborate with product, UX, and DevOps teams to create seamless, scalable member experiences. If you thrive in environments where engineering meets impact—where you’re not just building code, but shaping the way people shop, save, and connect—this is your opportunity to build with purpose.

Responsibilities

System & Feature Development

  • Build end-to-end applications across responsive web and mobile platforms using modern frameworks (React.js, Node.js, PostgreSQL, MongoDB).
  • Translate UX/UI designs into accessible, high-performance interfaces following WCAG standards and mobile-first best practices.
  • Design, develop, and maintain RESTful and GraphQL APIs that connect internal and external systems.

Architecture & Technical Leadership

  • Contribute to architectural decisions, codebase evolution, and platform-level optimizations.
  • Lead conversations around scalability, modular design, caching strategies, and cloud- native development.
  • Define and uphold engineering best practices in testing, observability, and CI/CD.

Collaboration & Mentorship

  • Partner with cross-functional teams—including product, design, QA, and DevOps—to deliver value quickly and iteratively.
  • Mentor peers through code reviews, technical design discussions, and knowledge-sharing sessions.
  • Participate in Agile ceremonies and drive continuous improvement in team delivery and culture.

Required Qualifications

  • 5+ years of experience in full stack development with end-to-end feature delivery.
  • Proficiency in JavaScript/TypeScript, React.js, and Node.js or similar technologies.
  • Solid understanding of SQL and NoSQL databases (e.g., PostgreSQL, MongoDB).
  • Strong API design skills with experience in REST and/or GraphQL.
  • Experience with responsive design, accessibility standards (WCAG), and performanceoptimization.
  • Familiarity with Git, CI/CD pipelines, Docker, and modern development workflows.
  • English fluency required; Spanish proficiency is a plus.

Preferred Qualifications

  • Experience with frameworks such as Next.js, NestJS, or serverless architecture.
  • Exposure to cloud platforms (AWS preferred), container orchestration (Kubernetes), andinfrastructure-as-code.
  • Previous work in e-commerce, logistics, or scalable membership-based platforms.

Additional Information

  • A valid passport and availability for occasional business travel may be required.

Benefits

  • Participation in initiatives to foster a sense of ownership in the company’s success.
  • Annual bonus of up to 10% of the annual base salary, linked to performance.
  • Medical and life insurance, ensuring comprehensive protection.
  • Access to the employee assistance program.
  • Flexible hours and hybrid work model.
  • Two weeks of vacation starting from the first year.

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