Tech Stack

JavaScriptReactTypeScriptNext.jsAstroCSSWebSocketDockerKubernetesCI/CD

About the role

Role Overview

JavaScript Developer to join an international team producing scalable software solutions. You'll be part of a cross-functional team responsible for the full software development life cycle, from conception to deployment, collaborating on web applications across architecture, design, development, launching, and maintenance.

Key Responsibilities

Build responsive UIs with React using Next.js and Astro
Handle real-time data updates, fast user interactions, and complex states
Work closely with product, design, and backend teams to ship features quickly
Write clean, maintainable code with focus on performance and scalability
Contribute to shared component library and design system
Develop and evolve design systems following modern high-quality development practices
Participate in on-call shift rotation

Required Experience & Skills

7+ years of modern frontend engineering experience with deep expertise in React, TypeScript, and advanced CSS
Proven track record designing and scaling high-performance, real-time web applications (trading platforms, betting systems, live dashboards)
Strong architectural understanding of state management, performance optimization, rendering strategies, and frontend scalability
Hands-on experience with Next.js or Astro, including SSR, ISR, routing strategies, and performance tuning
Experience building and maintaining WebSocket-driven systems and handling complex real-time data synchronization
Design system experience: designing, evolving, or contributing to component architecture, theming, accessibility, and developer experience
Comfortable owning and improving CI/CD pipelines, build systems, and deployment workflows
Practical experience with Docker and Kubernetes
Ability to drive technical decisions, mentor engineers, and influence frontend architecture
Flexible to work across different time zones
B2 English level and ability to communicate in both Spanish and English

Nice-to-Have

Understanding of event-driven systems, live odds updates, or real-time event tracking

Work Environment

Proactive and collaborative team player with can-do approach
Works well under minimal supervision
Strong passion for learning and professional development

About Lensa

Lensa is a career site that helps job seekers find great jobs in the US. The actual employer, Paramo Technologies, is a cutting-edge e-commerce company developing products for its own technological platform, with creative teams focused on scalable software solutions.