Software Engineer - App Security & SRE (Perm/ 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 support & monitoring

Monitor and maintain production application health, investigating errors, exceptions, and system alerts to ensure service availability

Define and implement Service Level Indicators (SLIs) and Service Level Objectives (SLOs), with ongoing refinement to reduce false positives and improve signal quality

Understand application architecture and integration points with other system components to enable effective troubleshooting

Conduct daily operational health checks and maintain system observability using monitoring tools (e.g. Grafana, ELK stack)

Patching & compliance

Coordinate monthly and quarterly system patching schedules, working with infrastructure teams to verify completion of system and endpoint updates

Document patch outcomes for governance and audit purposes

Respond to audit Requests for Information (RFI), providing accurate and timely technical evidence

Support application security assessments and vulnerability remediation activities

Incident & continuity management

Develop task lists and execute contingency drills to validate disaster recovery procedures

Organise and conduct monthly internal incident management drills

Participate in on-call rotation to provide timely incident response and resolution

Participate in CyberEx exercises and implement recommended security measures

Document incidents and contribute to post-incident reviews and continuous improvement

[What we are looking for]

At least 5 years’ experience in application support, operations, or site reliability engineering — preferably in payments, securities settlement, or financial infrastructure

Strong hands-on experience with Java/J2EE application environments, including troubleshooting and diagnosing production issues

Proficiency in SQL for database queries and production analysis

Experience with Linux/RHEL environments and shell scripting

Understanding of application integration patterns, web services, and RESTful APIs

Familiarity with monitoring and observability platforms (e.g. Grafana, ELK stack)

Knowledge of security principles, patching procedures, and vulnerability management

Experience responding to audit or compliance requests, and working within ICT governance frameworks

Strong analytical and problem-solving skills with ability to diagnose complex technical issues

Clear communicator — able to write incident reports, drill outcomes, and RFI responses for both technical and non-technical audiences

Comfortable owning recurring processes (patching cycles, monthly drills)

Calm under pressure and able to prioritise clearly when multiple issues surface at once

Organised with the ability to manage multiple priorities and coordinate across teams

Collaborative by default, but confident taking ownership of assigned areas and working independently when the situation calls for it

Proactive problem solver who can work effectively and drive improvements within established processes

Technical Skillset:

Experience with JBoss EAP, OpenShift, or containerisation technologies (Docker, Kubernetes)

Knowledge of CI/CD pipelines and automation tools

Familiarity with job scheduling tools (e.g. Autosys)

Understanding of file transfer protocols (SFTP, MQ) and interface resilience

Experience with the S.W.I.F.T messaging platform and interfaces

Experience in government or regulated-industry digital projects

Relevant certifications (e.g. Java, CKAD/CKA, ITIL) are a plus

As part of the shortlisting process for this role, you may be required to complete a medical declaration and/or undergo further assessment.

Candidates may be considered for a permanent or 2-year contract roles. All applicants will be notified on whether they are shortlisted or not within 4 weeks of the closing date of this job posting.