Software Engineer - Security, SRE & Solution Architecture (Contract)

[What the role is]

You will be part of the Central Banking & Devt Platforms (CBD) payment team responsible for managing the systems supporting the MAS Electronic Payment System (MEPS+) and domestic securities management systems in MAS, and the Special Singapore Government Securities system.

These responsibilities involve supporting interbank payments in MEPS+ as well as MAS and government securities and trade settlements. You are expected to understand and support the linkages between these systems and other market infrastructures such as the Automated Clearing House (ACH).

[What you will be working on]

Application Solution architecture

• Architect and maintain comprehensive system architecture with deep understanding of integration patterns and dependencies across the technology stack

• Lead cross-functional architectural reviews, providing strategic technical guidance on design decisions that impact scalability, performance, and maintainability

• Design and implement robust monitoring frameworks, intelligent alerting systems, and streamlined incident response procedures to ensure operational excellence

• Develop and maintain detailed architectural documentation whilst conducting structured knowledge transfer sessions to build team capability

Security & Site Reliability Engineering

• Partner with infrastructure teams to implement security hardening measures and ensure compliance with regulatory requirements and industry standards

• Design and execute comprehensive application security testing protocols and vulnerability assessment procedures, ensuring full alignment with MAS framework requirements and organisational processes

• Conduct systematic security reviews, coordinate penetration testing initiatives, and perform thorough threat analysis including risk assessments of identified vulnerabilities and security findings

• Define meaningful SLOs and SLIs, implementing automated monitoring and measurement systems to track service reliability and performance

• Proactively monitor system health through advanced observability tools and execute comprehensive daily operational health assessments

• Build system resilience through chaos engineering practices, comprehensive disaster recovery planning, and continuous performance optimisation initiatives

• Maintain production system stability through participation in on-call rotations, providing expert-level support and rapid incident resolution

[What we are looking for]

• At least 8 years' relevant experience in supporting and/or implementing payments and securities settlement systems with a minimum of 5 years of experience in Application support and operations, or application security, site reliability engineering, or solution architecture

• Strong knowledge of security principles and best practices in software development, security frameworks, vulnerability assessment tools, and penetration testing methodologies

• Understanding of enterprise architecture patterns and integration technologies

• Proficiency in application testing assessment and management, including the ability to analyse test results and propose improvements

• Familiarity with ICT governance policies, standards, and best practices in government agencies

• Knowledge of service design principles and the ability to apply design thinking methods to identify transformation opportunities

• Strong problem-solving skills and the ability to analyse complex business problems, recommending digitalisation and process changes

• Excellent communication and stakeholder management skills, with the ability to engage effectively with various internal and external stakeholders

• Understanding of solution engineering principles, including the ability to design application architecture and evaluate hardware and software solutions. Example,

  • Experience in designing and implementing J2EE and/or .NET applications, SQL skills, and shell scripting

  • Strong understanding of Server-side, .Net and/or Java/microservices, web services, RESTful API, containers and Kubernetes

  • Experience with RHEL, JBOSS EAP, OpenShift, Openstack, CICD, Watermelon, Maven, Oracle Database, Microsoft SQL Server and fault-tolerant infrastructure concepts

  • Experience with cloud platforms and containerisation technologies (e.g. Docker, Kubernetes)

  • Strong understanding and experience handling file transfers - interfaces, interfaces resiliency, connectivity protocols e.g., Rest, SFTP, MQ

  • Experience with integration of Autosys, designing job scheduling, CI/CD, Datawarehouse, and Document Management System

  • Experience with setup, and integration of Observability platforms, monitoring, and alerts (e.g. Grafana, ELK stack)