Top Software Engineer Jobs in Singapore

As a Software Engineer at Citadel, you will build systems for investments, collaborate with researchers, and tackle complex problems.

Implements software development lifecycle tasks under guidance from experienced staff, follows established standards and procedures, makes technical decisions, collaborates with peers and project leads, and may participate in code and design reviews.

Implements software development lifecycle tasks under guidance, follows established standards, collaborates with peers and project leads, makes technical decisions, and contributes to code and design reviews. The description also includes leading technical program managers, coordinating complex software initiatives, managing roadmaps and governance, resolving dependencies, defining launch criteria, and overseeing portfolio execution.

Implements software development lifecycle tasks under guidance from experienced staff, follows established standards and procedures, makes technical decisions, collaborates with peers and project leads, and contributes to code and design reviews.

Leads software engineering within an agile Asset and Wealth Management technology team. Designs, develops, tests, troubleshoots, and reviews secure, scalable Java applications. Drives production stability, automation, CI/CD, resiliency, and responsible adoption of AI-assisted development tools. Coaches engineers on validating AI outputs and secure practices, and evaluates vendor and architectural solutions. Requires cloud-native experience, financial services IT knowledge, and expertise with Java and Spring Boot; AWS and Terraform experience is preferred.

Six-month Android software engineering traineeship combining classroom and on-the-job training. Trainees develop performant, user-friendly applications using Kotlin, contribute to large mobile codebases, integrate AI into development workflows, work with complex backends, and collaborate within agile cross-functional teams serving millions of users.

Design and develop backend microservices and frontend dashboards for autonomous-agent and penetration-testing workflows. Integrate LLM reasoning, prompt orchestration, model chaining, and AI security controls. Collaborate with researchers to productionize AI components, while ensuring scalability, testing, documentation, monitoring, sandbox isolation, secure coding, and compliance.

Develop, implement, and maintain IT application systems using software development, Agile, DevSecOps, microservices, and cloud technologies. Lead projects evaluating technologies and solutions, design application architectures, address business needs, and collaborate with customers and cross-functional stakeholders.

Leads secure software architecture and development for scalable, cloud-native enterprise systems. Designs application security controls, frameworks, and threat-modeling practices; establishes coding and testing standards; oversees DevOps, monitoring, telemetry, and defect management. The role also provides technical direction for AI security initiatives, translates business requirements into secure solutions, and collaborates with cross-functional stakeholders to improve system resilience and data protection.

Designs, develops, deploys, tests, and reviews software applications, features, and defect fixes. Collaborates with team leaders and users to support a product roadmap, analyze requirements, document software, provide developer-level support, and learn existing codebases. The role also involves participating in planning meetings, conferences, and occasional team travel.

Design, develop, integrate, test, and maintain complex full-stack software components for Singapore government systems. Build prototypes and system architectures, apply agile and customer-oriented practices, use cloud, DevOps, and emerging AI technologies, and collaborate with UX, engineering, and product teams. Provide technical consultancy, define specifications, configure solutions, and resolve complex technical problems.

Build and operate web products end-to-end across frontend, backend, databases, APIs, cloud infrastructure, and deployment. Translate ambiguous product ideas into production-ready software, iterate based on user feedback, and make pragmatic architecture decisions. Collaborate with product managers, designers, and stakeholders while establishing testing, CI/CD, observability, and security practices. The role requires recent Node.js experience, independent decision-making, and experience delivering products from prototype to production.

Develop automation machine software covering machine control, robot control, and vision inspection. Support system installation, commissioning, qualification, validation, circuit design, machine setup, troubleshooting, and overseas field support. Manage automation projects or submodules, communicate progress and issues to stakeholders, resolve technical problems, and develop high-performance vision algorithms as an advantage.

Lead design and implement a low-latency options market making and volatility execution platform. Develop and optimize performance-critical C++17/20 components for high-throughput market data and order flow, build trading controls and risk safeguards, collaborate with quantitative researchers and traders, drive architecture and operational stability, and adopt enterprise AI-assisted engineering practices.

Summer internship within a Software Engineer Program: design, develop, test, and troubleshoot software; write secure code; use modern tooling and approved AI development tools; collaborate with engineers and stakeholders; apply automation, CI/CD, resiliency, and security practices.

Design, build, and support scalable portfolio management systems. Triage production incidents with portfolio managers, implement event-driven/streaming pipelines, drive engineering best practices and AI-assisted development, and collaborate with product and stakeholders to translate investment workflows into resilient, observable tools.

Develop and optimize Java backend systems, contribute to scalable and fault-tolerant architecture, solve high-concurrency technical challenges, and participate throughout the software development lifecycle. Responsibilities include design, coding, refactoring, testing, deployment, monitoring, collaboration, and knowledge sharing.

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.

The Software Engineer will develop and maintain backend services for various applications, design robust APIs, and enhance backend architecture, collaborating with cross-functional teams.

Six-month full-time internship designing, building, testing, and deploying production-ready card issuing and spend card features across backend, APIs, and front-end. Tasks include technical design, feature development, automated testing, observability, production deployment, cross-functional collaboration, and showcasing delivered capabilities under mentor guidance.

As a Software Engineer Intern, you'll develop high-performance platforms and technological tools for trading strategies while collaborating with senior team members at Citadel Securities.

Software Engineers are matched confidentially with Dragonfly portfolio companies hiring across crypto and blockchain. Roles may span backend, frontend, full-stack, mobile, infrastructure, data, security, machine learning, and DevOps. Candidates should have software engineering experience and an interest in crypto, blockchain, or open-source technologies. Startup or crypto-native project experience is preferred. Opportunities may be remote, hybrid, or in-person worldwide.

Leads software engineering for equities prime services, developing secure, scalable Python or Java systems supporting trading and execution workflows. Collaborates with traders, quantitative researchers, and stakeholders; translates requirements into architectures and roadmaps; reviews and troubleshoots production code; automates recurring remediation; and promotes AI-assisted engineering practices with responsible-use controls. Preferred experience includes quantitative trading, KDB/q, FIX, market data, order management systems, and streaming platforms such as Kafka or AMPS.

Software Engineer Intern supporting the development of security solutions for homeland security, smart cities, and critical infrastructure projects. Responsibilities include technical design and writing, software development, module testing, IVVQ and site deployment support, and exposure to the software development lifecycle. The role offers hands-on experience with modern web, mobile, cloud, containerization, and continuous integration technologies.

Participate in developing and maintaining core products, implementing business-module interface documentation, troubleshooting QA-reported issues, and supporting customer-service teams with problem resolution and system improvements. The role requires Java and Spring microservices knowledge, database and middleware experience, strong communication skills, and collaboration in a global blockchain environment.