Top Software Engineer Jobs in Singapore

Design, build, and operate core transaction risk microservices in Kotlin/Java. Deliver high-concurrency, highly available distributed systems, improve observability, evaluate graph/streaming/ML/LLM technologies, mentor engineers, and participate in on-call incident response to detect and prevent fraud at scale.

Build and maintain Airwallex's 3DS card authentication infrastructure and payment APIs. Design, develop, and operate reliable services, collaborate with global teams and financial partners, troubleshoot production issues, and own critical components of the online payment processing flow.

Design, implement, and deliver production-grade, low-latency streaming ingestion and search platform features. Build and optimize large-scale distributed systems (streaming, storage, partitioning, resilience). Collaborate with product and global engineering teams, perform design/code/performance reviews, translate business requirements into robust engineering solutions, and maintain platform reliability and scalability.

Design and build cloud cost management and security/access platforms: billing and cost-attribution pipelines, self-serve cost dashboards, anomaly detection, cost-optimization and automated rightsizing, and Just-In-Time access and credential management for production cloud and CI/CD environments.

Design, build, and operate the citizen‑developer platform and workflow infrastructure. Create self‑serve tooling, secure SDLC guardrails, Temporal‑based workflows, Kubernetes/GitOps foundations, and documentation. Partner with application teams, run on‑call and incident response, and improve developer experience and platform reliability at scale.

Own end-to-end design and development of scalable payment and treasury systems, shape APIs and architecture, drive production excellence, and collaborate cross-functionally to build customer-facing fintech solutions and AI-enabled automation.

Build and maintain Airwallex's iOS app: design and implement enterprise iOS applications and libraries, define requirements with product and business teams, own full-cycle product development, refactor for maintainability and extensibility, integrate data protection and regulatory best practices, and ensure high test coverage and CI/CD automation.

Design and implement Android applications and libraries, collaborate with product and finance stakeholders to define requirements, own full-cycle development, refactor for maintainability, and ensure secure, reliable, testable mobile solutions.

Design, implement, and operate production-grade search and streaming infrastructure. Build low-latency, high-throughput ingestion pipelines (Flink/Kafka/Postgres), collaborate with product and global teams, perform code/design reviews, and troubleshoot distributed system performance and resilience.

Lead architecture and development of backend systems for card products, drive cross-team technical initiatives, own service lifecycle, ensure scalable, secure, high-performance designs, establish best practices, and mentor engineers.

Design and build developer-facing products: APIs, developer portal, docs, and analytics pipelines. Collaborate across product, engineering, and support to improve onboarding and scale. Contribute open-source tools, external services, and incorporate AI to elevate developer experience.

Design, build, and maintain scalable Java/Kotlin microservices and event-driven systems for high-throughput global growth initiatives. Collaborate with data scientists and product teams to create data pipelines and analytics, enable A/B testing and feature toggles, improve observability and performance, and ensure secure, compliant backend solutions while mentoring peers.

Lead Software Engineer for Real-Time Payments responsible for technical leadership, architectural design, hands-on coding, and ensuring reliability and performance of payment systems.

The Principal Software Engineer will lead technical integrity and operational support for Mastercard's RTP platform, focusing on high-impact design, performance improvements, and complex troubleshooting.

The role involves developing AI-driven banking solutions, writing efficient code, integrating systems, and ensuring software quality through testing and reviews.

The Software Engineer will design, develop, and support the MEMX Trading system software, focusing on production support during US evening hours.

The Software Engineer 2 role involves collaborating with teams to enhance and troubleshoot applications, while applying software development concepts and gathering stakeholder requirements.

The role involves designing, building, and automating software solutions for Risk Management, requiring extensive experience in software engineering and various technology stacks.

Build and maintain full-stack applications, platforms, integrations, APIs, and serverless components on AWS. Implement IaC, CI/CD, security controls, compliance requirements, and system integrations while raising engineering practices across the team for government agency projects.

Build and maintain internal developer platforms, CI/CD pipelines, build systems, and backend services to improve reliability, scalability, performance, and observability. Partner with engineering teams to optimize cloud costs, contribute to architecture and roadmaps, monitor system health, and resolve issues to enable faster, higher-quality shipping to production.

Build and maintain backend services, APIs and workflows for an AI neobank app across insurance, payments, wallet, savings, investing and travel. Design reliable systems for accounts, transactions, partner integrations, reconciliation, notifications and operations. Integrate with banks, payment gateways, insurers and data providers; improve reliability, observability, security and performance; collaborate with product and mobile teams to ship customer-facing journeys and ensure auditable, regulation-ready systems.

Build end-to-end customer-facing and internal features for an AI-enabled neobank: web flows, backend APIs, admin tools, dashboards, and operational systems; integrate APIs and data flows; improve reliability and post-launch features using analytics and feedback; collaborate with product, design, mobile and operations teams.

The role involves implementing and configuring Governance, Risk, and Compliance (GRC) or Fraud Management solutions, collaborating with stakeholders, conducting testing, and providing training.

As a Frontend Engineer, you'll craft user interfaces, write engineering requirement documents, build test suites, and integrate analytics for product success.

As a Backend Engineer, you will design scalable APIs, create Engineering Requirement Documents, and build test suites for product analytics and performance.