Full-stack Developer Digital Platform

About the Role

We are hiring an experienced Full-Stack Developer to join our team in Singapore or Kuala Lumpur. You will work across our digital payments and financial platform, covering wallet and payment-network integrations as well as our internal transaction matching system. Our stack uses Node.js for wallet and account services, and Java or Rust for the internal matching engine, so your background across these areas will shape where you focus most. This is mainly a hands-on building role. Experience guiding or mentoring other engineers is a plus.

Responsibilities

Design, build and maintain scalable web applications and backend services.

Build wallet and account features that connect to multiple payment networks and partners.

Build secure processes for sending, receiving and settling payments and balances.

Integrate our systems with external networks and third-party APIs.

Implement strong key and access management, including multi-party approval flows and hardened wallet security.

Build and improve the systems that match and route transactions between our platform users.

Build secure holding and verification steps for transactions.

Design systems that stay reliable under high traffic, and improve database speed and scalability.

Build APIs, real-time services, and monitoring and alerting systems.

Work closely with Product Managers, Designers and QA, and take part in design discussions and code reviews.

Technical Requirements

Frontend:
React.js, Next.js, TypeScript, TailwindCSS

Backend:
Node.js, NestJS or Express.js

Matching engine:
Java (Spring Boot) or Rust

Databases:
PostgreSQL, MySQL, Redis or MongoDB

Cloud and DevOps:
Docker, Kubernetes, AWS or GCP, CI/CD

Preferred Experience

Large-scale financial or trading systems.

Designing secure transaction processes.

Knowledge of AML, KYC or fraud-prevention tools.

Event-driven and distributed systems.

Handling very high daily traffic.

Leading or mentoring a team (a plus, not required).

Qualifications

Bachelor’s degree in Computer Science, Software Engineering or a related field.

5 or more years of professional software development experience.

Strong understanding of scalable system design.

Strong debugging and problem-solving skills.

Able to work independently and in a team.

Based in Kuala Lumpur, or currently in Singapore and open to relocating.

What We Offer

Competitive salary with performance bonuses.

The chance to build modern digital payments and financial products.

Work alongside experienced fintech and payments professionals.

A modern engineering culture using current technologies.

Room to grow within a fast-growing technology company.

About Us

1M R&D is a technology research and development company focused on exploring, developing and applying technologies across Web2, Web3 and artificial intelligence. We bridge established digital infrastructure with emerging technologies to create innovative products, intelligent systems and practical business solutions.

Our work spans software engineering, digital platforms, system integration, AI-powered applications, intelligent automation, blockchain technologies and decentralised systems. Through continuous research, technical experimentation and applied development, we identify promising technologies, evaluate their real-world potential and transform viable ideas into scalable solutions.

By combining technical research with practical implementation, 1M R&D aims to turn technological advancements into meaningful applications, unlock new business opportunities and shape the next generation of digital experiences.