Senior Software Engineer - New Markets Japan (JLPT N1 Fluent)

Overview

Senior Software Engineer for Alpaca’s New Markets Japan team, focused on designing and maintaining mission-critical brokerage systems for the Japan market.

What you'll do

• Design, implement, and maintain systems and services that form Alpaca’s brokerage foundation.
• Build and enhance middle- and back-office systems, including gRPC microservices and REST/gRPC APIs.
• Integrate third-party vendor systems specific to Japan market requirements.
• Work with core teams to extend the framework for multiple languages, currencies, and markets with Japan-specific features.
• Troubleshoot incidents and reported bugs to maintain system integrity and performance.
• Participate in on-call rotations and assist with production issues during Japan business hours.

What you'll need

• Native or JLPT N1 level Japanese fluency for professional communication with local regulators, vendors, and partners.
• Business-level English fluency for collaboration in English-only meetings, design discussions, code reviews, and documentation.
• Experience designing and developing complex financial systems, preferably including double-entry accounting.
• Strong understanding of accounting principles, ledger structures, and transaction reconciliation.
• Experience building scalable, high-availability financial applications handling multi-currency transactions.
• Proficiency in at least one statically typed language (e.g., Go, Rust, Java, Kotlin, C#, Scala, or C++).
• Ability to work independently in a fully remote, globally distributed team and under pressure in a fast-paced environment.

Details

• Work location: Remote - APAC.