Full-Stack Engineer for AI Finance Platform

Sptix AI LLP; Sydney; Hybrid; AUD 120,000 - 180,000; Full time

Job summary

BJAK is seeking a Full Stack Software Engineer to advance its AI Finance Agent across frontend, backend and data flows. You will build customer-facing features, internal tools, and robust APIs while collaborating with product, design, mobile and operations teams to ship quickly.

The role emphasizes fintech experience and strong UX sense to drive reliable, scalable solutions. Join a fast-growing team responsible for insurance, payments, savings, investing, and travel services.

Qualifications

• 3+ years of full stack software engineering experience.
• Experience with modern web frameworks, APIs, databases, and production systems.
• Able to build useful products quickly without needing perfect specs.
• Good product sense, UX awareness, and attention to detail.
• Experience in fintech, insurtech, marketplace, consumer apps, or high-volume platforms is a strong advantage.

Responsibilities

• Build customer-facing and internal product features end to end.
• Develop web flows, backend APIs, admin tools, dashboards, and operational systems.
• Support products across insurance, payments, savings, investing, travel, and financial services.
• Work with product, design, mobile, and operations teams to launch fast.
• Integrate APIs, handle data flows, and improve production reliability.
• Use analytics, feedback, and production issues to improve features after launch.
• Help build tools that reduce manual work and improve speed across the business.

Skills

Full stack

Frontend

Backend

APIs

Databases

Debugging

UX awareness

Fintech experience

Tools

React

Node.js

TypeScript

PostgreSQL

Job description

BJAK is seeking a Full Stack Software Engineer to advance its AI Finance Agent across frontend, backend and data flows. You will build customer-facing features, internal tools, and robust APIs while collaborating with product, design, mobile and operations teams to ship quickly.

The role emphasizes fintech experience and strong UX sense to drive reliable, scalable solutions. Join a fast-growing team responsible for insurance, payments, savings, investing, and travel services.