Engineer

United States Digital Space LLC; Singapore; On-site; SGD 180,000 - 280,000; Full time

Job summary

United States Digital Space LLC is seeking a hands-on Senior Software Engineer to steer the technical direction of our payments platform, spanning fiat rails, PSP integrations, and banking partners globally. You will code daily and mentor a small squad while delivering production changes.

The role emphasizes modernising the platform for scalability, while working across Java/Spring Boot and PHP/Laravel as the migration progresses.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.
• 7+ years of hands-on software engineering experience, with payments/fintech or transaction-heavy systems.
• Strong Java and Spring Boot skills; comfortable working in PHP (Laravel) when required.

Responsibilities

• Set the technical direction for the payments platform and lead hands-on delivery.
• Lead the gradual extraction of payment flows from the monolith into a well-bounded service across Java (Spring Boot) and PHP (Laravel) codebases.

Skills

Java

Spring Boot

PHP/Laravel

Payments

Education

Bachelor's degree in Computer Science or Software Engineering

Tools

Laravel

Job description

Role Overview:

We are seeking a hands‑on, strategic and results‑driven Senior Software Engineer to drive the technical direction of our payments platform covering fiat rails, PSP integrations, and banking partners across our global footprint.

You’ll be the technical anchor of a small payments squad, coordinating execution alongside the squad engineers while writing code yourself every day.

A core part of your remit is to modernise and shape the payments platform into a cleaner, more resilient surface that can scale with our future integrated roadmap.

Responsibilities:

Technical Direction & Hands‑on Delivery: Set the technical direction for payments work and lead by example, you’ll be in the codebase daily, shipping production changes alongside the squad, not just reviewing PRs.

Decoupling the Payments Service: Lead the gradual extraction of payment flows from the existing monolith into a well‑bounded service, working bi‑directionally across our Java (Spring Boot) and PHP (Laravel / VueJS) codebases as the migration progresses.

Qualifications:

Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.

7+ years of hands‑on software engineering experience, with meaningful time spent on payments, fintech, or adjacent transaction‑heavy systems.

Strong proficiency in Java and Spring Boot, with the ability and willingness to work in PHP (Laravel) where the existing codebase requires it, comfort moving bi‑directionally across stacks is essential.