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Full Stack Software Engineer - AI Finance Agent

bjakcareerTokyo, JapanEngineering
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Salary
Not listed
Job type
Full-time
Work mode
Remote
Experience
Mid · 3+ yrs
Posted
1 Oct 2026
Status
Open · checked 7d ago

About this role

Based in Tokyo, Japan, this hybrid Full Stack Software Engineer position involves building applications for the AI Finance Agent at bjakcareer. The role suits product-minded developers with a background in modern web development who want to build end-to-end features across financial services.

Role Overview

The Full Stack Software Engineer role at bjakcareer focuses on developing fast across the AI Finance Agent. The position requires working from the Japan office at least three days per week. Professionals in this role handle everything from frontend web flows to backend APIs, internal dashboards, and operational systems.

Key Responsibilities

Build customer-facing and internal product features end to end across multiple financial domains.
Develop web flows, backend APIs, admin tools, dashboards, and operational systems.
Support products across insurance, payments, savings, investing, travel, and financial services.
Collaborate with product, design, mobile, and operations teams to launch solutions rapidly.
Integrate APIs, manage data flows, and enhance production reliability.
Utilize analytics, feedback, and production issue tracking to refine features post-launch.
Construct internal tools that minimize manual work and increase operational speed.

Requirements

Three or more years of full stack software engineering experience.
Strong fundamentals in both frontend and backend development.
Experience working with modern web frameworks, APIs, databases, and production systems.
Ability to construct useful products quickly without relying on complete specifications.
Solid product sense, user experience awareness, and attention to detail.
Capability to debug issues across the entire technology stack.
Strong English communication skills for collaborating with global teams.

Nice to Have

Experience working in fintech, insurtech, marketplaces, consumer apps, or high-volume platforms.

Skills and Tools

Frontend frameworks and web technologies
Backend APIs and databases
Production systems and debugging tools

About the Company

Founded in 2019, bjakcareer operates a leading insurance platform in Southeast Asia and is expanding into spending, saving, investing, exchanging, and traveling. The company employs team members across the world, representing over 20 nationalities working from offices and remotely.

How to Apply

Interested candidates should apply directly on the official company careers page.

Questions candidates ask

Where is this job located?

This role is based in Tokyo, Japan, and operates on a hybrid schedule requiring attendance at the Japan office at least three days per week.

How many years of experience are required?

Candidates must have at least 3 years of full stack software engineering experience.

What language is used in the workplace?

English is the main working language across global teams, and strong English communication is required.

What domains will the engineer work on?

The role supports products across insurance, payments, savings, investing, travel, and financial services through the AI Finance Agent.

What is the interview process like?

The process includes an online assessment or practical task, a technical interview, and a CEO or final round.

Ready to apply?

The application is on the official bjakcareer careers page.

Apply on company site