Top Software Engineer Jobs in Singapore

Lead design and development of scalable data infrastructure and self-service tooling for data engineering teams. Provide technical leadership, implement robust systems (Kubernetes/Terraform/GitOps), ensure quality through testing and maintenance, troubleshoot production issues, and collaborate cross-functionally to deliver reliable data platforms.

Build and maintain internal developer platforms, tools, and AI-powered solutions to improve productivity, reliability, observability, and security. Debug and optimize backend services, APIs, databases, and CI/CD pipelines while partnering with cross-domain engineering teams to adopt standards and reduce operational friction.

Six-month full‑stack software engineering internship contributing to fiat and stablecoin payment rails. Build end-to-end features across frontend and backend, support payment flows, craft responsive React interfaces, work with mentors, participate in code reviews, testing, debugging, and performance/security optimization.

Support implementation and maintenance of secure digital-asset custody (cold storage, multi-sig), monitor blockchain transactions, develop and improve smart contracts and scripts, and enhance blockchain payment networks for high availability.

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

Six-month traineeship to learn and contribute to Android app development using Kotlin. Work in cross-functional agile teams, build and maintain client applications, integrate AI into mobile workflows, and gain experience with large codebases and scalable backends.

Design, develop, and debug complex software for semiconductor equipment; define specifications and test plans; lead projects; interact with customers for requirements and troubleshooting.

Manage software engineering projects and teams end-to-end: define objectives, plan resources, ensure on-time delivery within specifications and costs, enforce documentation/compliance (ISO, IP, safety), drive R&D and process improvements, mentor staff, and resolve complex technical and operational problems.

Design and build secure, scalable frontend identity and account solutions using React and TypeScript. Implement micro-frontends, BFF Node services with Apollo GraphQL, CI/CD deployments, component libraries, testing (unit and e2e), and CMS-driven pages while collaborating with product, design, and backend teams to improve security, performance, and developer experience.

Lead architecture and roadmap for the App Marketplace/Extension Framework. Design and build SDKs, webhooks, APIs and UI-extension patterns. Ensure technical excellence with coding standards, observability, and security. Improve developer experience with documentation, sandboxes, and tooling. Integrate with external financial institutions and third-party platforms to scale the ecosystem.

Design, develop, and maintain APIs and checkout features for global payments. Build reliable, high-availability payment processing systems, troubleshoot production issues, optimize critical components, and collaborate with cross‑functional teams and financial partners to ensure seamless merchant integrations and user experiences.

Build and scale backend ledger and reconciliation systems for financial data and transactions. Collaborate with product, design, and engineering to deliver secure, scalable features. Implement data integrity checks, follow security best practices, and use data-driven feedback to evolve product requirements while working closely with finance stakeholders.

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, 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.

Lead design and build of high-performance distributed data infrastructure and AI enablement platforms. Optimize systems internals and JVM performance, implement lakehouse and real-time streaming, develop scalable vector indexing and AI knowledge platform, own SDLC for petabyte-scale systems across global regions, drive engineering best practices, and mentor mid-level engineers.

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, 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.

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.

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, 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.

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.

Lead architecture and implementation of Airwallex's edge networking stack (API gateway, CDN, DNS, global accelerators). Define border security (DDoS, WAF, rate limiting), build policy-driven API route management, enforce governance, enable hybrid/multi-cloud traffic engineering, and ensure global-scale reliability and QoS for critical payment and auth paths.

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 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.