Top Software Engineer Jobs in Singapore

Design and build Airwallex's global edge infrastructure: API gateway, CDN, DNS routing, and perimeter security. Implement security-as-code, rate-limiting, WAF rules, bot-detection, self-service tooling, and reliability improvements. Collaborate with product, platform, and security teams and ship high-throughput, low-latency services.

Design and build multi-tenant, high-scale backend systems for embedded finance. Own cross-domain features, architect enterprise integrations, collaborate with product and sales, and measure and optimize performance, reliability, and customer-facing solutions.

Design, build, and operate backend services for card issuing, transaction processing, and settlement. Develop scalable, resilient distributed systems and RESTful APIs. Ensure reliability through monitoring, alerting, on-call participation, and performance tuning. Write well-tested code, participate in design reviews, mentor peers, and collaborate with product and regional stakeholders.

Lead design and implementation of a next-gen billing platform: analyze requirements, design architecture, develop core components on a microservice framework, ensure high concurrency/availability, introduce new technologies, and build/manage the technical team and coding standards.

Design, build, and maintain secure, scalable lending services and APIs for enterprise credit products. Lead architecture and design reviews, mentor engineers, champion resilient distributed systems, and ensure strong testing, monitoring, and delivery practices.

Lead design and implementation of a next-generation billing platform. Architect and develop microservice components, ensure high concurrency, availability and performance, collaborate with product and cross-functional teams, introduce new technologies, and build/manage the technical team and coding standards.

Senior backend engineer for the Onboarding team building scalable, high-availability microservices in Java/Kotlin. Design data pipelines and event-driven architectures, enable analytics and growth initiatives, support A/B testing and feature toggles, and ensure security and regulatory compliance. Collaborate with cross-functional teams, participate in architecture and code reviews, and mentor teammates to improve system reliability and onboarding performance.

Design, build, and maintain scalable microservices for high‑traffic growth funnels. Collaborate with product, design, and data teams to enable data‑driven experiments, A/B testing, analytics pipelines, and observability. Ensure secure, fault‑tolerant, cloud‑native architectures and mentor peers to improve quality and performance.

Design and build scalable backend infrastructure for global payments: optimize API gateways, routing, search, notifications, workflows; solve distributed systems challenges, evaluate new technologies, and improve developer experience and performance at scale.

Design, build, and maintain secure, scalable lending services and APIs. Lead architecture and design reviews, mentor engineers, ensure reliability and observability, and collaborate cross-functionally to deliver enterprise credit products.

Lead technical direction and hands‑on implementation of Airwallex's real‑time risk and fraud detection platform. Design distributed, low‑latency systems; own end‑to‑end delivery; write production Java/Spring Boot code; integrate ML models and feature stores; ensure observability, reliability, and operational excellence; mentor engineers and collaborate across product, data, SRE, and security teams.

Design and implement backend and frontend components for global treasury and payment products using Kotlin/Java or ReactJS. Collaborate with product managers and designers, empathize with customers, and use data to measure and optimize product performance. Contribute to scaling Airwallex's payment infrastructure and shipping high-quality features.

Design and build scalable, high-availability microservices (Java/Kotlin) to support global onboarding and KYC integrations. Collaborate with data, product, and frontend teams to create event-driven data pipelines, define SLOs, improve observability, and ensure secure, compliant systems for customer onboarding and identity verification.

Design, build, and maintain scalable, secure lending services and APIs. Drive architecture and reliability for distributed, high-throughput credit products, mentor engineers, and collaborate cross-functionally to deliver compliant embedded lending solutions.

Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.

Design, build, and operate the citizen‑developer platform and underlying Temporal-based workflow infrastructure. Improve developer experience, establish secure SDLC and guardrails, create self-serve tooling, contribute to Kubernetes/GitOps foundation, participate in code reviews and on-call incident response, and document standards and reference architectures for platform users.

Build and maintain developer platform services, automation, and cloud tooling to improve developers' productivity. Collaborate with product and infrastructure teams, write clean code, perform code reviews, and improve platform availability, performance, monitoring, and incident response.

Build, test, and deploy scalable, data-intensive web search and analytics systems for national-security use. Design architectures, write maintainable code and tests, monitor system health, optimise performance, deliver proofs-of-concept, and support mission-critical deployments.

Design, develop, test, and maintain scalable data processing applications and APIs. Build and operate data pipelines, improve system resiliency, participate in code reviews, document solutions, and prepare production-ready data for AI applications while collaborating within an Agile team.

Design, develop, test, and deploy cloud-native web applications; translate business requirements into scalable solutions; implement CI/CD and observability; participate in agile sprints, code reviews, and user engagement; mentor peers and share engineering best practices.

Design, build, and maintain full-stack applications and data pipelines to enable data discovery and sensemaking. Integrate modern technologies, debug and optimize systems, participate in code/design reviews, and communicate solutions to stakeholders.

Design, build and deploy scalable full-stack web features, focusing on an internal AI-powered chat assistant. Ensure high-quality, well-tested code, maintain production reliability, participate in code reviews, collaborate with designers and stakeholders, and contribute to documentation and Agile delivery.

Design, develop, test, and maintain software applications. Collaborate with cross-functional teams to gather requirements, perform code reviews, troubleshoot and debug, and integrate systems. Stay current with modern development tools and frameworks to deliver high-quality solutions.

Design, develop, test, deploy and maintain scalable, robust software that processes and distributes large volumes of data. Prototype new products, work with product managers and stakeholders, and troubleshoot system issues to meet evolving operational requirements.

Design, develop, and deploy cybersecurity software solutions including high-performance microservices, RESTful APIs, CI/CD pipelines, and monitoring dashboards to support threat detection, investigation, analysis, and knowledge management.