Lead Engineer - Stock Trading App

Overview

Lead Engineer for a stock trading app, serving as a hands-on technical leader with ownership of complex products and systems.

What you'll do

• Lead technical design and execution of major products, features, and initiatives.
• Design scalable, reliable, maintainable systems across backend, frontend, APIs, databases, and infrastructure.
• Stay hands-on via coding, prototyping, code reviews, debugging, and production problem-solving.
• Make architecture decisions and trade-offs balancing speed, scalability, reliability, and maintainability.
• Break ambiguous problems into clear solutions and execution plans.
• Mentor engineers and set high standards for code quality, testing, security, observability, and production reliability.

What you'll need

• Significant experience building and shipping production systems.
• Deep expertise in one or more areas such as backend, frontend, distributed systems, APIs, databases, or cloud infrastructure.
• Strong system design and architecture skills for complex or high-scale systems.
• Proven experience leading major engineering projects or providing technical leadership.
• Comfort reviewing code, debugging complex issues, and working with production systems.
• Ability to clearly explain technical decisions and influence engineers across teams.
• Strong product sense connecting technical decisions to customer/business outcomes.

Details

• Location: Seoul, Korea (ATS location line).
• Work mode: remote.
• Language: English required.