Top Backend Developer Jobs in Singapore

Build and operate backend services for global liquidity management, safeguarding, investments and cash data. Design scalable microservices, event-driven pipelines, APIs and persistence layers. Ensure correctness, observability, testing, controls, reconciliation and compliance. Collaborate with cross-functional stakeholders, participate in on-call rotation, and deliver end-to-end features from design to production.

Lead design and implementation of production-grade stablecoin infrastructure: key management, transaction signing, gas fee handling, mint/burn/transfer lifecycle, multi-chain ledgering, and integration with FX and payment systems. Collaborate across product, infrastructure, and compliance to deliver secure, auditable services.

Design, implement, and lead backend billing systems and microservices. Collaborate with product and cross-functional teams to build scalable, high‑concurrency, high‑availability billing and invoicing platforms, introduce new technologies, and establish team coding standards.

Design, build, and operate highly reliable, scalable, event-driven systems for card issuing, transactions, and settlement. Lead architecture, drive platform improvements, ensure operational readiness, mentor senior engineers, and influence cross-team technical direction.

Design, build, and maintain scalable, secure backend services for card issuance and spend management. Own end-to-end feature delivery, contribute to architecture, write reliable testable code, ensure observability and API quality, collaborate cross-functionally, and mentor other engineers.

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.

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.

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.

Design and execute functional, integration, regression, and end-to-end tests for high-throughput, low-latency backend trading systems. Validate real-time data flows, messaging, caching, and data integrity (WebSocket, Kafka, Redis, databases). Collaborate with product and engineering, document defects, and improve testing processes, tooling, and automation.

Design, build, and maintain scalable backend services and ML pipelines using Go. Participate in architecture and code reviews, performance tuning, capacity planning, debugging production systems, and collaborating with product and infrastructure teams to ensure reliability and scalability.

Design, develop, and optimize backend systems using Java and Spring. Contribute to architecture for scalability and high-availability, solve high-concurrency problems, participate across the SDLC, and collaborate with regional teams to share best practices and elevate technical capabilities.

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

Build and maintain backend services and APIs powering onboarding, accounts, payments, cards, transfers, rewards, FX, KYC and risk flows. Design reliable, secure, observable systems for real customer transactions and operational workflows. Integrate with partners, payment providers and AI services, own reliability, data integrity and incident handling, and collaborate with product, frontend, mobile and AI teams to launch features and automate processes.

Design and build greenfield backend payment services using Java/Spring Boot. Implement high-throughput, low-latency APIs (REST/gRPC), event-driven flows, PCI DSS compliant handling, observability, CI/CD and containerized deployments. Contribute React UI for tooling, integrate FX/treasury data where needed, and apply LLM/agentic features into production workflows.

As a Backend Developer Intern, you will develop IT solutions, collaborate with teams to improve service reliability and data compliance, and assist in making WeChat features compliant for users.

The backend developer will build backend software focusing on reliable APIs, ensure high-quality output, and collaborate with teams.

Lead design, development, and maintenance of scalable Python backend services using FastAPI. Collaborate cross-functionally to build features, optimize performance, fix bugs, and maintain code quality and automation in a remote team.

Design, build, and maintain scalable, secure backend services, databases, and APIs for the COMPASS platform. Implement microservices, integrations, data processing, observability, and security best practices. Troubleshoot, optimize performance, support deployments and production operations, collaborate with frontend, data teams and stakeholders, and participate in Agile ceremonies and code reviews.

The Senior Back-End Developer builds and maintains server-side operations for cloud solutions, collaborating with teams to deliver software, support users, and document features.

Paid backend engineering internship contributing to WeChat backend services: design, develop, deploy features; collaborate with Product and Safety; improve data compliance, user safety, and service reliability; build internal/external tools and support global rollout.

Design and build cloud-native backend microservices and distributed systems to orchestrate a global fleet of robots. Develop real-time APIs and data pipelines, drive DevOps and infrastructure-as-code, ensure observability, resilience, security, and compliance (ISO27001, SOC2, GDPR) for production systems at scale.

Design, develop, and optimize high-performance backend services for payment processing and transaction switching. Integrate with card schemes (Visa, Mastercard, Amex, UPI), support Base24-eps migrations on Linux/Cloud, ensure PCI-DSS compliance, perform troubleshooting and performance tuning, document architectures, and collaborate with QA, frontend, banks, vendors, and payment partners.

This role involves developing backend services using Golang, optimizing APIs, and managing systems for an AI-powered platform, focusing on infrastructure and business application development.

Build and maintain backend services for slot and casual games (provably-fair): betting, settlement, idempotency, state machines, seed commitment/reveal, and wallet integration. Validate numerical correctness (Monte Carlo/statistics), design tests for concurrency and failure modes, perform pre-launch code audits, and implement security-by-design measures to prevent double-debits, leaks, and over-payouts.

Design, build, and own scalable, secure microservices and hybrid cloud/on-premise solutions using .NET (.NET Core/.NET 6). Lead architecture, integrations, CI/CD and TDD practices, leverage containerization (Docker), collaborate cross-functionally, and integrate agentic AI tools to accelerate development and validate AI-generated code.