Role overview

Lead Full Stack Engineer

FocusDeveloperRole area
SeniorityArchitect, LeadCandidate level
StackNode Js React JsPrimary skills
Location1 accepted countryEligibility

Requirements and responsibilities

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About the role

We are looking for a Lead Full Stack Engineer to build and scale an internal workflow automation platform on n8n, supporting a Japan-based pilot rollout within the Recruit domain. You’ll work across Node.js, React, PostgreSQL, and MongoDB — designing integrations, extending platform capabilities, and partnering directly with stakeholders in Japan to drive adoption. Business-level Japanese proficiency is required.

What you will do

  • Build, extend, and scale our internal workflow automation platform built on top of n8n;
  • Design and implement backend services and integrations to support complex automation workflows;
  • Develop and maintain scalable integrations with internal services, third-party SaaS platforms, and APIs;
  • Collaborate closely with stakeholders and pilot users in Japan, particularly within the Recruit domain, to ensure successful platform onboarding and adoption;
  • Customize workflows and platform capabilities based on user needs and operational requirements;
  • Contribute to platform architecture decisions and ensure long-term scalability and reliability;
  • Provide technical leadership and best practices for automation design, system integrations, and platform stability;
  • Support users by troubleshooting issues, improving platform usability, and ensuring successful adoption.

Must haves

  • 5+ years of experience;
  • Business-level to native Japanese proficiency, written and spoken — non-negotiable;
  • Ability to communicate effectively with stakeholders and users in Japan;
  • Strong experience with Node.js as a primary backend language;
  • Experience building, extending, or operating automation platforms using n8n;
  • Python as a secondary language for backend services, scripting, or supporting components;
  • Experience with React for building modern, responsive interfaces and integrating frontend applications with backend services;
  • PostgreSQL – relational database design, querying, and optimization;
  • MongoDB – experience with NoSQL data modeling and document-based storage;
  • Strong experience building and maintaining REST APIs;
  • Experience integrating internal systems and third-party SaaS platforms;
  • Experience with Docker and containerized environments;
  • Strong stakeholder management and relationship-building skills;
  • Comfortable working directly with users and partners to understand needs and ensure successful platform adoption;
  • Ability to translate technical capabilities into practical solutions for business teams;
  • Strong collaboration and communication skills in cross-functional and international environments;
  • Upper-intermediate English level.

Nice to haves

  • Experience designing workflow automation systems;
  • Experience with SaaS integrations across multiple platforms;
  • Background in platform architecture or internal developer platforms;
  • Experience building internal tools or automation platforms used across multiple teams.

Tech stack

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Location eligibility

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