Fullstack Engineer (AI Neobank)

TL;DR

Fullstack Engineer (AI Neobank): Building and shipping full product features across frontend, backend, and APIs for an AI-powered neobank with an accent on customer journeys and internal automation. Focus on transforming ambiguous product problems into reliable systems and scaling financial applications.

Location: Hybrid in Tokyo, Japan (minimum 3 days per week in office). Note: The job posting contains contradictory mentions of Austria, but explicitly requires presence in the Japan office.

Company

Leading insurance and financial platform in Southeast Asia expanding into AI-driven neobanking services.

What you will do

• Develop full-stack product features across frontend, backend, APIs, and databases.
• Create customer and internal workflows for onboarding, payments, KYC, rewards, and risk management.
• Translate ambiguous product problems into working systems with clean UX and reliable logic.
• Collaborate with product, design, mobile, and AI engineers to launch and iterate quickly.
• Build internal tools and automation to reduce manual work and scale operations.
• Own the full lifecycle of features, including monitoring, debugging, and performance improvement.

Requirements

• Strong full-stack engineering experience with a track record of shipping real products.
• Proficiency in modern frontend stacks such as React, Next.js, or Vue.
• Solid backend fundamentals regarding APIs, data models, authentication, and integrations.
• Proven experience in personally building, shipping, or scaling serious platforms or systems.
• Strong product sense and the ability to simplify complex, messy workflows.
• Ability to work effectively with ambiguity and own outcomes end-to-end.

Culture & Benefits

• International environment with a team spanning over 20 nationalities.
• Passion-driven culture focused on building next-generation products rather than maintaining the status quo.
• Fast-paced environment with high ownership and impact.

Hiring process

• Online assessment or practical technical task.
• Technical interview.
• Final round interview with the CEO.