Staff Software Engineer - New Markets Japan

Responsibilities

• Design highly scalable, mission-critical brokerage systems for the Japan market.
• Develop and enhance middle- and back-office systems, including gRPC microservices, REST and gRPC APIs, and third-party vendor integrations for JPX, JSCC, JASDEC, banks, and identity verification vendors.
• Enhance the core framework to support multiple languages, currencies, and markets, including Japan-specific requirements such as NISA, MyNumber, withholding tax, and JP-GAAP accounting.
• Collaborate with technology leads in other regions through Slack and meetings.
• Coordinate in Japanese with local regulators, vendors, partners, and business stakeholders, translating requirements into technical specifications for global engineering teams.
• Troubleshoot incidents and bugs to maintain system integrity and performance.
• Participate in on-call rotations and support production issues during Japan business hours.
• Contribute to regional recruitment initiatives, cross-functional projects, engineering practices, mentoring, and the Japan engineering culture.

Requirements

• Native or JLPT N1-level Japanese fluency, including professional reading, writing, and communication with local regulators, vendors, and partners.
• Business-level English fluency for 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, highly available financial applications handling multicurrency transactions.
• Familiarity with financial-market regulatory compliance, preferably in Japan, including FIEA, FSA, JSDA, or JIPF frameworks.
• Proficiency in at least one statically typed language such as Go, Rust, Java, Kotlin, C#, Scala, or C++.
• Experience with financial APIs, market-data integrations, and trade-settlement processes.
• Strong computer science fundamentals and software architecture experience.
• Experience with domain-driven design and event-driven design.
• Ability to work independently in a fully remote, globally distributed team and under pressure in a fast-paced environment.
• Ability to translate technical concepts into business strategies.
• Ability to lead and troubleshoot incidents or bugs during Japan business hours.
• Strong communication, problem-solving, and proactive decision-making skills.

Nice-to-haves

• Proficiency in Go or willingness to ramp up quickly.
• Experience in the Japanese financial-services sector, including securities firms, banks, brokerages, or fintech.
• Experience integrating with JPX, TSE, OSE, JSCC, JASDEC, or major Japanese banks.
• Experience with NISA, iDeCo, tokutei-koza, or MyNumber.
• Startup or fast-growing technology-company experience.
• Knowledge of emerging technologies or passion for financial markets.
• Experience managing vendors and organizational budgeting.
• Experience working with global, English-speaking teams across multiple time zones.

Compensation and benefits

• Competitive salary and stock options.
• Health benefits.
• One-time USD $500 new-hire home-office setup benefit.
• USD $150 per month stipend via a Brex Card.