All roles

Open role

Senior Full Stack Developer (Node.js and React.js)

Remote · Japan Full-time

Job Title: Senior Full Stack Developer (4-6 Years Experience) Role Overview We are looking for a Senior Full Stack Developer with 4-6 years of experience who can design, build, and scale robust web applications end-to-end. You will work across both frontend and backend technologiesprimarily React and Node.js—while taking ownership of key modules, driving technical decisions, and ensuring high-quality, maintainable code.This role requires a strong grasp of system design fundamentals, performance optimization, and modern DevOps practices to deliver scalable and reliable applications.

Key Responsibilities

  • Build and maintain dynamic, responsive web applications using React
  • Design and develop scalable backend services and APIs using Node.js (NestJS)
  • Architect and optimize database solutions across SQL and NoSQL systems (e.g., MongoDB, PostgreSQL)
  • Take ownership of end-to-end feature development, from requirement understanding to deployment
  • Optimize applications for performance, scalability, and reliability
  • Collaborate closely with UI/UX designers and translate Figma designs into high-quality interfaces
  • Implement and enhance CI/CD pipelines and contribute to automated deployment workflows
  • Containerize applications using Docker and manage deployments on cloud platforms (preferably Azure)
  • Lead code reviews, enforce coding standards, and mentor junior developers
  • Identify technical debt and proactively drive improvements in architecture and code quality
  • Troubleshoot production issues and ensure system stability

Must-Have Skills

  • 4–6 years of full stack development experience
  • Strong proficiency in JavaScript (ES6+)
  • Advanced experience with React.js (hooks, performance optimization, state management)
  • Strong backend development experience using Node.js (NestJS Preferred)
  • Solid experience with MongoDB and at least one relational database (PostgreSQL/MySQL)
  • Strong understanding of RESTful APIs, API design, and integration patterns
  • Hands-on experience with Git and collaborative workflows (PR reviews, branching strategies)
  • Experience with CI/CD pipelines (e.g., GitHub Actions, GitLab CI)
  • Good understanding of HTML5, CSS3, and responsive design principles
  • Strong debugging, performance tuning, and problem-solving skills
  • Exposure to docker container & microservices architecture and distributed systems
  • Familiarity with system design concepts (scalability, caching, load balancing)
  • Experience with different services in a cloud platform like Azure (Preferred) / AWS

Good to Have

  • Exposure to GenAI/LLM integrations or modern AI-driven features
  • Experience in Python (FastAPI)
  • Mentorship to Junior Developers.

Soft Skills

  • Strong communication skills with the ability to articulate technical decisions clearly.
  • Ability to take ownership and drive tasks independently.
  • Mentorship mindset and willingness to support team growth.
  • Comfortable working in agile environments with evolving requirements.

More open positions

JavaScript Developer Remote (Hiring Immediately)

Work from home Full-time role

JavaScript Developer; Remote

Work from home Full-time role

Javascript Application Developer (remote)

Work from home Full-time role

Remote PHP Developer, Full-Time

Work from home Full-time role

PHP Developer - Backend (Remote)

Work from home Full-time role

Remote BCBA Analyst – Crown ABA

Work from home Full-time role

Senior PR Manager (m/w/d) – Remote oder Berlin

Work from home Full-time role

Software Engineer II

Work from home Full-time role

Remote Bioinformatics

Work from home Full-time role

Software Engineer, Platform - Detroit, MI, USA

Work from home Full-time role

[Remote] Account Executive

Work from home Full-time role

Senior SEM Specialist (Remote) Masonboro, NC, USA

Work from home Full-time role

Remote Part‑Time Data Entry Specialist – High‑Accuracy Data Management – $30/hr – Flexible Work‑From‑Home Role at careerzynith

Work from home Full-time role

Remote P&C Licensed Insurance CSR

Work from home Full-time role

Cyber Security Analyst

Work from home Full-time role

Senior Backend Software Engineer - Cloud Platform

Work from home Full-time role

Bilingual Dental Receptionist (Mandarin-English)

Work from home Full-time role

Virtual Corporate Trainer Jobs for U.S.-Based Professionals

Work from home Full-time role

Remote Customer Service Representative – Flexible Schedule, Career Advancement, and Growth Opportunities in a Leading Digital Marketing Agency

Work from home Full-time role

Remote Data Entry & Sales Representative – Home‑Based, Flexible Hours, Competitive Pay, Full‑Time Position at careerzynith

Work from home Full-time role

Teacher – Full-Time & Adjunct/Teacher Pool

Work from home Full-time role