Senior Full-Stack Software Engineer

About this role

Who is Aiwyn and what do we do?
Aiwyn is transforming the way accounting firms manage the entire revenue lifecycle. Backed by top-tier investors like Bessemer, KKR, and Revolution, we’re one of the fastest-growing scale-up SaaS companies in the world. We build category-defining technology—and we’re doing it with world-class people, processes, and products.


To learn more, visit our
website
Who You Are:
We’re looking for a Senior Full-Stack Software Engineer who thrives working across the entire stack, from building robust backend services and APIs to crafting polished, responsive user interfaces. You’ll join one of our product teams, taking end-to-end ownership of features from database schema to UI component.


We know full-stack means different things to different people. You might be deeply experienced in Java/Kotlin and Spring Boot, with growing frontend skills and a genuine desire to own the UI. Or you might be a seasoned Angular developer who’s built real backend services and wants to go deeper. Either profile works — what matters is that you want to work across the stack and take pride in delivering complete, high-quality features.


We’re also leaning heavily into AI-accelerated development. We see AI as a force multiplier for engineering velocity, and we’re actively investing in tools, workflows, and practices that let our engineers ship faster and tackle more ambitious problems. We want people who are genuinely excited about using AI to accelerate their work, not just curious about it, but already experimenting with it and eager to push the boundaries of what’s possible.


What You'll Do:

• Design & Build Across the Stack – Design and implement features end-to-end, from robust backend services and APIs in Java/Kotlin and Spring Boot to polished, responsive user interfaces in Angular. Own the full lifecycle of features - database schema to UI component - while maintaining high code quality standards and contributing to arch...