Top Backend Developer Jobs in Singapore

Design and implement high-performance trading APIs for a decentralized exchange, focusing on low latency and real-time data processing while ensuring system observability and reliability.

The Backend Engineer will implement new SDK and Indexer features, automate testing, support integration, and oversee production releases.

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.

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.

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 optimize backend logic and internal systems. Create engineering-efficiency platforms and tools, collaborate with product and QA, and refactor architecture to improve stability, scalability, and development speed.

Lead design, build, and operate scalable backend services and APIs for Web2 and Web3 products. Implement data pipelines, blockchain indexing, database optimization, observability, and fault-tolerant distributed systems. Diagnose production issues, improve reliability, and integrate blockchain/node APIs, wallets, and DeFi protocols while owning backend architecture end-to-end.

Design, develop and maintain backend services for a cloud-based digital platform using Node.js and TypeScript. Build REST APIs, database schemas and optimised PostgreSQL queries; implement authentication/authorization, workflows, audit logging, reporting and integration readiness. Support CI/CD, database migration automation, deployment to AWS, and remediate security findings from SAST/DAST/VAPT.

As a Senior Software Engineer, you'll design and maintain backend systems for DNA sequencing instruments, develop APIs, and enhance engineering practices while mentoring junior staff.

Lead backend architecture and build scalable, high-concurrency services and APIs (Node.js) powering web and mobile. Own components end-to-end, manage CI/CD and infrastructure (IaC, containers, cloud), improve reliability, and collaborate with PM/design to deliver core features like live interactions and checkout.

The Senior Backend Engineer will build scalable solutions, drive innovation, and improve development processes for Flo's renewable energy platform, collaborating across teams.

Design and build AI agent applications, optimize retrieval systems, collaborate with teams, and explore new AI intelligence forms.

The role involves back-end development using .NET Core and SQL, contributing to Jibble 2.0 API integrations, and collaborating with product and design teams.

The Backend Software Engineer will develop and maintain backend systems for data processing related to coffee farming, utilizing Python and PostgreSQL. Responsibilities include feature development, problem-solving, and adapting systems to regulatory changes while ensuring system resilience.

Design and build scalable, metadata-driven data pipelines, frameworks and services for AI/ML use cases. Lead end-to-end SDLC, deliver high-quality backend solutions, manage production support and CI/CD, collaborate with stakeholders, perform POCs, and drive process improvements and automation.

Build and optimize backend systems for a massive-scale search stack: web crawling, embedding model training, high-throughput data pipelines, and a custom vector database to serve low-latency, large-scale search.

As a Senior Backend Engineer, you will solve complex technical challenges, influence system architecture, drive code quality, mentor juniors, and collaborate on scalable backend systems.

As a Senior Backend Developer at Awarri, you'll build and maintain backend systems for AI platforms, focusing on scalable architectures, data integration, and real-time communication.

Lead end-to-end QA for Fiat/BigPay: plan tests, design and execute cases across App/Web/Backend/Admin, maintain Python pytest+k6 automation framework, drive feature and edge-case testing, and collaborate cross-functionally to close quality loops.

Build and operate backend services in Elixir/Phoenix handling real-time freight events, high-volume data, and reliability. Contribute to architecture, write production-ready tested code, improve tooling, participate in deployments/troubleshooting, and use agentic AI tooling responsibly. Optional front-end work with React/TypeScript for fullstack candidates.

Take end-to-end ownership of backend features and SaaS services in a microservices architecture. Design, implement, deploy, and operate scalable, reliable Node.js services. Work with Redis Streams, MongoDB, Kubernetes, and ensure test coverage, performance tuning, and collaboration with cross-functional teams.

Design, develop, and maintain highly scalable microservices and backends (Java/Spring) for millions of users. Collaborate with product owners, perform code reviews, respond to production incidents, mentor junior engineers, participate in team ceremonies, and potentially share on-call duties.

Join as an early-career full stack engineer to build frontend and backend product features, integrate AI coding tools into development workflows, translate product requirements into implementations, and grow toward autonomous full stack delivery while improving cross-team processes.