POS+: Full-Stack JavaScript Engineer (Remote - LATAM or Europe)

Job Title

Senior Full-Stack JavaScript Engineer (Remote - LATAM or Europe)

Introduction

This role offers an opportunity to work with POS+, a company leading the development of essential software for retail and service industries. The Senior Full-Stack JavaScript Engineer position is aimed at professionals located in LATAM or Europe, allowing for flexible work arrangements in a fully remote setup.

Company Overview

POS+ is dedicated to creating foundational payment interface software that facilitates modern retail transactions. Their payments architecture is designed to maintain data consistency, zero downtime, and low latency, crucial for handling financial transactions smoothly. They prioritize performance-driven code quality and seek seasoned engineers who can contribute to their mission-critical infrastructure.

Role Expectations

The company is looking for a highly experienced candidate who can:

  • Architect scalable systems that ensure reliable performance under load.
  • Identify edge cases and design solutions that maintain code integrity.
  • Write maintainable and well-documented code without reliance on AI-generated boilerplate.

The company values technical depth and expects candidates to critically evaluate their preliminary code before applying.

Screening Process

POS+ utilizes a unique, collaborative recruiting process that involves:

  • An Initial Intro & System Design session lasting about 45 minutes where candidates discuss their experience, technical strategies, and general system architecture decisions.
  • A Live Code Review & Debugging Session for about 60 minutes, where candidates will audit a poorly structured JavaScript/TypeScript codebase and suggest improvements live, showcasing their ability to identify issues and refactor code efficiently.

Key Responsibilities

The role includes the following core responsibilities:

  • Develop and maintain scalable full-stack features using Node.js, React, and TypeScript.
  • Optimize database queries and create efficient schema designs to manage high transaction volumes.
  • Ensure the security and scaling of APIs for rapid synchronization in varying software environments.
  • Proactively seek and eliminate technical debt, adhering to strict coding standards and robust testing methods.
  • Collaborate synchronously with core product and engineering teams.

Required Skills

Candidates must display proficiency and experience in various key areas:

  • 5+ years of professional experience in full-stack JavaScript/TypeScript applications.
  • Comfort in handling asynchronous programming challenges, race conditions, and memory management in Node.js.
  • In-depth knowledge of React, including state management, rendering optimization, and UI component construction.
  • Strong communication skills in English, with a focus on live collaboration and architectural justification.
  • Experience with cloud technologies (AWS or GCP), CI/CD pipelines, and containerized environments using Docker (preferred).

Compensation and Work Environment

POS+ offers competitive compensation tailored to geographic location and level of expertise, ensuring it remains attractive to top-tier talent. The role comes with the following benefits:

  • Direct Contractor Engagement with streamlined contracting processes and monthly invoicing.
  • Emphasis on autonomy, allowing engineers to work independently while being responsible for their modules and code quality.
  • Opportunity to make an impact by working on core systems affecting thousands of transactions daily in real-world merchant settings.

Application Process

Interested candidates are encouraged to submit their resume, a link to their LinkedIn profile, and examples of prior work (preferably from GitHub or GitLab) to apply for this exciting opportunity at POS+.

This position awaits a driven, experienced engineer ready to take on significant responsibilities in a cutting-edge environment while enjoying the flexibility of remote work. By joining POS+, you become part of a dedicated team working on transformative solutions in the payment processing landscape.



This job offer was originally published on weworkremotely.com

POS+

Fully Remote (Targeting LATAM or Europe time zones)

Web content writing

Full-time

June 4, 2026

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