Principal Software Engineer (Fintech)

Location: Hybrid workstyle in Japan; regular office attendance is expected in line with organizational guidelines and team objectives.

Company

hirify.global is a fintech company operating a large-scale payment platform serving more than 75 million users.

What you will do

• Design, develop, test, deploy, maintain, and improve software and core platform systems.
• Lead the technical direction of multiple projects through hands-on execution and guidance for other engineers.
• Provide architectural blueprints and technical leadership throughout program phases.
• Build common platforms supporting application systems across different business verticals.
• Identify technical debt, determine remediation approaches, and drive measurable improvements in scalability and efficiency.
• Develop engineering tools, contribute to open-source projects, and mentor junior engineers.

Requirements

• Degree in Computer Engineering or Computer Science, or 7+ years of equivalent software development experience.
• Strong fundamentals in data structures, algorithms, operating systems, and object-oriented programming.
• Deep understanding of concurrency, distributed computing, large-scale systems, messaging, and algorithms.
• Experience designing, implementing, and maintaining large-scale distributed systems.
• Experience developing distributed platform systems such as messaging platforms, pub/sub systems, databases, distributed computing frameworks, or schedulers.
• Professional experience with at least one general-purpose programming language and the ability to learn new technology stacks.

Nice to have

• Experience in finance, payments, or similar industries.
• Experience with AWS services.
• Open-source project contributions.
• Japanese and English language skills; professional translation support is available.

Culture & Benefits

• Hybrid work with a flexible schedule and super flex time without core hours.
• Annual leave, personal leave, and special paid leave for employee, family, and pet-related needs.
• Social insurance, employee pension, employment insurance, compensation insurance, and a 401K plan.
• Visa sponsorship and relocation support are provided.
• Translation and interpretation support, plus access to a choice of hardware and software tools.