Korea-Based Node.js Backend Developer
Budget / Salary$250–750
TypeFreelance project
LocationRemote
Posted1 hour ago
I’m growing a customer-facing web product and need a backend engineer here in Korea who lives and breathes Node.js. Your main responsibility will be owning our REST API layer: designing new endpoints, shaping data models, and keeping latency low even as traffic climbs.
What you’ll do day-to-day
• Plan and implement new micro-services in modern Node.js (Express/Nest or comparable frameworks).
• Model clean, scalable database schemas and write the queries that power them. Whether we end up on PostgreSQL, MySQL, or MongoDB, you’ll guide the decision with real-world arguments.
• Integrate third-party services, payment gateways, and internal tools through well-structured interfaces.
• Write thorough unit and integration tests, automate builds in a CI/CD pipeline, and monitor production performance.
Collaboration & workflow
We’re a small product team operating on Korean business hours, so quick Slack/Zoom feedback loops and readable Git commits matter more to us than heavyweight processes. You’ll work directly with me (product) and our React front-end dev to ship weekly iterations.
What I’m looking for
• Deep Node.js expertise and confidence in building secure, versioned REST APIs.
• Solid grasp of relational and NoSQL schema design.
• Practical experience with Docker, GitHub Actions (or similar), and cloud deployment on AWS, GCP, or Azure.
• Comfortable communicating in either Korean or English; you must already be based in Korea for timezone overlap and occasional on-site workshops in Seoul.
If you’re excited to architect a backend from the ground up, keep it humming in production, and have a real voice in tech choices, let’s talk.
What you’ll do day-to-day
• Plan and implement new micro-services in modern Node.js (Express/Nest or comparable frameworks).
• Model clean, scalable database schemas and write the queries that power them. Whether we end up on PostgreSQL, MySQL, or MongoDB, you’ll guide the decision with real-world arguments.
• Integrate third-party services, payment gateways, and internal tools through well-structured interfaces.
• Write thorough unit and integration tests, automate builds in a CI/CD pipeline, and monitor production performance.
Collaboration & workflow
We’re a small product team operating on Korean business hours, so quick Slack/Zoom feedback loops and readable Git commits matter more to us than heavyweight processes. You’ll work directly with me (product) and our React front-end dev to ship weekly iterations.
What I’m looking for
• Deep Node.js expertise and confidence in building secure, versioned REST APIs.
• Solid grasp of relational and NoSQL schema design.
• Practical experience with Docker, GitHub Actions (or similar), and cloud deployment on AWS, GCP, or Azure.
• Comfortable communicating in either Korean or English; you must already be based in Korea for timezone overlap and occasional on-site workshops in Seoul.
If you’re excited to architect a backend from the ground up, keep it humming in production, and have a real voice in tech choices, let’s talk.
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