72 Systems Architect jobs in Singapore

We are seeking a skilled Backend Systems Engineer to join our team and play a key role in building scalable and secure backend systems for global checkout and crypto-related features.

This is an exciting opportunity to lead end-to-end transaction flows, including signing, auditing, and compliance. You will also develop secure APIs for wallets, payments, and digital asset conversions, and integrate with third-party systems such as finance, blockchain, and identity platforms.

• Key Responsibilities:

• Design and implement high-throughput distributed systems
• Develop secure APIs for various applications
• Integrate with third-party systems and platforms

• Requirements:

• Strong grasp of infrastructure, networking, and data architecture
• Experience in building distributed systems and API development
• Familiarity with smart contracts and Web3 fundamentals (desired)

• Benefits:

• Opportunity to work on cutting-edge projects
• Collaborative and dynamic work environment
• Ongoing training and professional development opportunities

To succeed in this role, you should be a self-motivated and organized individual with excellent communication skills. If you are passionate about building scalable and secure systems, we encourage you to apply.

About Us:

Aspenhealth is one of Singapore’s most innovative and fastest-growing primary care chains. We manage and operate a chain of 16 clinics around Singapore, rendering support in HR, Finance, IT, Procurement, Facilities Management and Patient Care Services.

If you are looking to start a career in healthcare and have a passion to serve the community, we welcome you! We believe in investing in people who have the right attitude — individuals eager to learn, driven to innovate, and ready to make a meaningful impact in healthcare.

Job Description:
You will lead a team of software engineers who build and maintain a complete software stack for our Clinic Management System, Electronic Health Records, Finance, Human Resources, Logistics functions and more. You will be the principal architect of our IT systems, and drive productivity transformation through technology and innovation.

What You Will Do With Us (Key Responsibilities)

• Lead next-generation feature and tool development and system architecture definition from end-to-end
• Design, manage and optimise systems performance and reliability
• Conduct code reviews with team and ensure adequate documentation
• Confer and collaborate with healthcare professionals to gather requirements and feedback to inform system design and functionality
• Lead and mentor a team of systems engineers to build and maintain CI/CD pipelines
• Render technical support to stakeholders during clinic operational hours

Requirements

• Strong programming skills (Entity Framework, C#, React, .NET)
• Proficiency in Relational Databases, especially MSSQL
• Hands-on problem solving skills and passion for confronting challenges directly
• Project management experience
• Experience with implementation of ERP, HRMS, and infrastructure management will be an advantage
• Good verbal and written communication skills

We Need People Who

• Are happy to roll up their sleeves and get things done
• Thrive in an fast-paced and dynamic environment that recognizes and rewards superior work
• Has a drive for improving things, and the initiative and gumption to match

Cloud Infrastructure Specialist Job

About the Role

• Design, deploy and manage scalable cloud infrastructure using Google Cloud Platform (GCP).

• Expertise in Kubernetes (GKE preferred) and container orchestration.
• Strong understanding of Infrastructure as Code (IaC) tools like Terraform or Deployment Manager.
• Experience with DevOps practices and tools (e.g., Git, Jenkins, Cloud Build).
• Proficient in scripting or programming languages (e.g., Python, Bash, Go).
• Google Cloud Certification is an advantage.
• Kubernetes Certification is a plus.
• Proven experience with GCP services (e.g., Compute Engine, Cloud Storage, Cloud Functions, Pub/Sub, BigQuery, etc.).
• Strong troubleshooting, documentation, and cost optimization skills.

• Design and build AWS cloud infrastructure (EC2, S3, RDS, Lambda)
• Administer Linux systems in a cloud environment (CentOS, Ubuntu, RedHat)
• Automate infrastructure using Terraform, Ansible or CloudFormation
• Monitor system performance and resolve issues proactively
• Implement cloud security practices (firewalls, VPNs, IAM)
• Support container tools (Docker, Kubernetes)
• Optimize cloud usage for cost and performance
• Perform backups, upgrades and disaster recovery tests
• Provide technical support to internal teams and clients

• Strong experience with AWS services (EC2, VPC, IAM, Lambda, RDS, S3)
• Proficient in Linux system administration
• Skilled in Infrastructure as Code (Terraform, Ansible, CloudFormation)
• Familiar with Docker and Kubernetes
• Solid understanding of cloud security and networking (VPC, Subnets, Load Balancers)
• Scripting skills (Bash, Python) for automation
• Experience with monitoring tools (CloudWatch, Datadog, Prometheus)
• Excellent troubleshooting and communication skills

Our ideal candidate is a skilled Cloud Infrastructure Engineer with 5 years of strong software engineering experience and proficiency in at least one of the following languages: JavaScript, Java, Python, or .NET.

We are looking for a highly motivated individual to design, implement, and maintain scalable and efficient cloud infrastructure using AWS services and tools such as Terraform and CloudFormation.

• Design, implement, and maintain scalable and efficient cloud infrastructure using AWS services and tools such as Terraform and CloudFormation.
• Develop and deploy containerized applications using Docker, Kubernetes, EKS, and Helm, with a focus on continuous integration and delivery (CI/CD) workflows.
• Collaborate with cross-functional teams to identify areas for process improvement and implement changes to increase efficiency and productivity.
• Maintain and optimize logging and monitoring systems using CloudWatch, Splunk, and Datadog to ensure high-quality application performance and user experience.

To be successful in this role, you will need:

• 5 years of strong software engineering experience with proficiency in at least one of the following languages: JavaScript, Java, Python, or .NET.
• At least 3 years of experience with containerization technologies, such as Docker, Kubernetes, EKS, Helm.
• At least 3 years of AWS experience with solid understanding of Cloud services and infrastructure management.
• Proven experience in infrastructure as code tools, such as Terraform and CloudFormation.
• Experience in log aggregation and observability tools, such as CloudWatch, Splunk and Datadog.
• Proficiency in CI/CD workflows and GitHub Action.
• Strong knowledge of artifact repository management systems, such as JFrog.
• Strong Linux administration skills and Shell scripting expertise.

Airwallex is a unified payments and financial platform for global businesses.

We empower over 150,000 businesses worldwide with fully integrated solutions to manage everything from business accounts, payments, spend management, and treasury.

Proudly founded in Melbourne, we have a team of over 1,700 innovators in tech across 26 offices around the globe. Our platform has been valued at US$6.2 billion and backed by world-leading investors.

As a vital member of our Tech Platform Team, you will be part of a specialized force that meticulously bridges the gap between business needs and architectural finesse.

• An advanced application infrastructure meticulously crafted to alleviate common challenges across the entire organization, significantly lowering maintenance costs for developers and streamlining innovation;
• Masterfully addressing intricate, organization-wide challenges through the strategic deployment of cutting-edge technologies such as reactive programming, temporal, workflow, distributed systems, and advanced gateway solutions;
• Comprehensive, organization-wide evaluations of strategic solutions.

• You will collaborate with various systems and teams to evolve our platform capabilities through fast-paced business transformation and providing data insights.
• Engage with engineering teams across our global offices, fostering effective communication.
• Design, develop, and maintain high-volume automated recovery pipelines using cutting-edge technology to overcome multi-data center complexity.
• Troubleshoot production issues across different levels of the stack.
• Evolving the platform to better governance and provide data-driven insights to business teams.

Key Responsibilities

• Design and develop features of traffic software, including DNS servers, L4 and L7 proxies, web caching, and FaaS runtimes.
• Integrate based on our traffic platform to process terabyte-scale data in real-time.
• Build data pipelines and develop telemetry systems to support datadriven traffic control.
• Develop API acceleration and other networking services that run on top of our traffic platform.
• Problem solving and performance tuning for online traffic.

• Bachelor's or Master's degree in Computer Science, Electrical Engineering, Computer Engineering, or related majors.
• At least 3 years of experience in developing network systems in Rust, C, C++, and/or Go.
• Strong developing skills in Linux environment.
• Familiarity with network protocols such as TCP/IP, HTTP, and DNS.
• Familiarity with Microservice architecture.
• Familiarity with container and orchestration technologies such as Docker and Kubernetes.
• Strong understanding of software deployment fundamentals and automation.
• Good understanding of concepts in operating system, remote process communication, high availability, etc.

• Experience in System Programming using low level system calls such as epoll, io-uring, etc.
• Experience in developing HTTP proxy such as Nginx and Envoy.
• Experience in developing Web Caching software such as Apache Traffic Server and Varnish, etc.
• Experience in Edge Computing and FaaS Runtime development.
• Experience in building distributed or cloud service based management system.
• Proficiency in networking newer protocols such as HTTP2, HTTP3/QUIC, TLS1.3, etc.

We are passionate about creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe, and so does our workplace. We strive to do great things with great people and lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company.

Job Title: Cloud Systems Architect

We are seeking a highly skilled Cloud Systems Architect to design, deploy and maintain scalable cloud infrastructure solutions. This role requires expertise in designing secure, cost-effective cloud infrastructure solutions that meet business needs.

The ideal candidate will have hands-on experience with major cloud providers such as AWS, Azure or Google Cloud Platform, and proficiency in infrastructure-as-code tools like Terraform. They should also be familiar with containerization and orchestration tools like Docker and Kubernetes.

In this role, you will collaborate with cross-functional teams to ensure smooth CI/CD processes and automate infrastructure using scripting languages like Bash or Python. You will also monitor and troubleshoot system performance, reliability and availability, and implement disaster recovery, backup and security best practices.

To succeed in this role, you must have a bachelor's degree in Computer Science or related field, and 2-4 years of experience in cloud engineering or DevOps role. If you have a passion for cloud computing and want to make a real impact in a dynamic team, we encourage you to apply for this exciting opportunity.

As a Staff Software Engineer, Backend, you will be working on core systems that shape how users and partners around the world access our platform. Your role will be to help build critical systems that make our platform secure, performant, and globally available.

This is a rare opportunity to work on high-impact projects that directly influence how businesses operate worldwide. You will have the chance to design and build scalable services, write high-quality code, and own end-to-end features that power our API gateway, CDN layer, DNS routing, and perimeter security.

• Design and develop next-generation edge services, including plugin-driven routing, smart cache policies, and dynamic purge APIs.
• Build libraries and pipelines for rate-limits, WAF/filter rules, and bot-detection, all integrated into our edge stack.
• Create self-service tooling, such as CLI/plugins and lightweight frameworks, to enable other teams to register APIs, enforce policies, and preview traffic insights in seconds.
• Optimize code-level performance to ensure every request is fast and flawless, analyzing metrics to pinpoint latency or fail-over gaps.

• Bachelor's degree or above in Computer Science, Engineering, or a related field.
• 5+ years of back-end development experience, building large-scale, high-throughput services.
• Proficient in one or more languages such as Java, Go, Python, or similar, with strong software-design and system-thinking skills.
• Comfortable partnering across product, platform, and security teams; able to explain complex ideas clearly.

• 3+ years designing and operating distributed, low-latency systems (API gateway, cache, etc) or security-focused development.
• Use data to identify performance or reliability bottlenecks and deliver targeted, code-level improvements.
• Thrive in a fast-paced environment, take full ownership of your work, and continuously iterate based on feedback.

You will be contributing to the development of critical systems that make our platform secure, performant, and globally available. This is an excellent opportunity to grow your career while making a meaningful impact.