Senior Backend Software Engineer, Payments

About the role

Grab is looking for an experienced Senior Backend Software Engineer to join its Payments FundsCore engineering team in Singapore. You will build scalable distributed systems that form Grab's financial backbone, including the Payment Platform, Driver Payouts, Fee Platform and Dax ledger, and take ownership of critical backend services that process millions of transactions daily. You will report to the Engineering Manager II and work on-site at the Singapore office.

Key responsibilities

• Develop scalable backend systems that meet business and non-functional requirements, including reliability, security and performance.
• Write clean, efficient, testable and maintainable code, and build distributed systems that prioritise transaction correctness and consistency using patterns such as idempotency, event sourcing and the Saga pattern.
• Collaborate with teams to deliver new capabilities and contribute to architectural decisions.
• Conduct code reviews, maintain technical documentation and promote engineering best practices.
• Diagnose complex production issues, create fixes and strengthen reliability through observability, automation and operational improvements.
• Support deployment and operational processes, and take part in the on-call rotation.
• Mentor junior engineers and interns, and use Generative AI tools responsibly to improve productivity.

Required profile

• Bachelor's degree in Computer Science, Engineering or a related field, or equivalent practical experience.
• At least five years of relevant software development experience.
• Computer science fundamentals, including algorithms and data structures, and the ability to handle edge cases, failure scenarios and system recovery.
• Experience writing efficient, maintainable, thoroughly tested code using SOLID principles, and understanding of clean architecture and data-intensive application design.
• Experience designing systems that meet observability, availability, security, data governance, regulatory and compliance requirements, and producing technical design documents and runbooks.
• Preferred: knowledge of or experience in FinTech and payment systems.

Required skills

• Proficiency in Go (preferred), Java or another major programming language.
• Large-scale distributed systems with relational and NoSQL databases, caching, RESTful or gRPC services.
• Microservices, cloud platforms such as AWS, and DevOps practices.
• Generative AI tools used responsibly.

What we offer

• Term Life Insurance and comprehensive medical insurance.
• Parental and birthday leave, plus volunteering leave.
• A confidential assistance programme and flexible work arrangements such as differentiated hours.