Day 2 System Engineer

ASCENDION ENGINEERING SOLUTIONS SINGAPORE PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

ASCENDION ENGINEERING SOLUTIONS SINGAPORE PTE. LTD. is seeking a highly motivated Software System Engineer to support Day 2 operations, maintenance, and enhancement of mission-critical systems in a 24/7 environment.

You will build and optimize CI/CD pipelines, manage containerized deployments with Docker/Kubernetes, and collaborate across infrastructure, security, and development teams. The role requires 3 years of relevant experience with strong Linux administration and incident resolution

Qualifications

• Diploma or bachelor’s degree in Computer Science/Information Technology/Software Engineering or related disciplines.
• Minimum 3 years of relevant working experience in software system engineering, DevOps engineering, application support, production support.
• Experience supporting enterprise or mission-critical systems is highly preferred.
• Experience in government or large-scale enterprise environments will be an advantage.

Responsibilities

• Provide Day 2 operational support for mission-critical applications and platform services.
• Perform incident investigation, troubleshooting, root cause analysis (RCA), and issue resolution.
• Support production deployment activities, rollback activities, and post-deployment verification.
• Monitor system health, application performance, logs, and operational alerts.
• Work closely with Day 1 support teams, infrastructure teams, software developers, cybersecurity teams, and project stakeholders.
• Support system recovery, disaster recovery (DR), and business continuity activities.
• Participate in standby support and after-office-hour support activities when required.
• Ensure compliance with operational procedures, governance, and security policies.

Skills

Linux administration

CI/CD pipeline implementation

Container technologies and orches...

Incident investigation & RCA

Education

Diploma or Bachelor's degree in Computer Science/Information Technology/Software Engineering or related disciplines

Tools

GitLab CI/CD

Jenkins

Docker

Podman

Kubernetes

Git

React

Node.js

Spring Boot

Job description

We are seeking a highly motivated and technically strong Software System Engineer to support the Day 2 operations, maintenance, and enhancement activities for IT Project. The candidate will be responsible for ensuring the stability, reliability, security, and operational readiness of mission-critical systems in a 24/7 operational environment.

Key Responsibilities

Day 2 Operations & Support

Provide Day 2 operational support for mission-critical applications and platform services.

Perform incident investigation, troubleshooting, root cause analysis (RCA), and issue resolution.

Support production deployment activities, rollback activities, and post-deployment verification.

Monitor system health, application performance, logs, and operational alerts.

Work closely with Day 1 support teams, infrastructure teams, software developers, cybersecurity teams, and project stakeholders.

Support system recovery, disaster recovery (DR), and business continuity activities.

Participate in standby support and after-office-hour support activities when required.

Ensure compliance with operational procedures, governance, and security policies.

CI/CD & DevOps Engineering

Build, maintain, and optimize CI/CD pipelines for:

Source code management and branching strategy, Code Quality Scanning, Static Application Security Testing (SAST), Software Composition Analysis / Dependency Scanning, Container Image Vulnerability Scanning, Automated Build & Packaging, Containerization of applications, Automated Testing Integration, Deployment File Generation, Release Management & Deployment Automation

Container & Platform Management

Deploy, configure, and manage containerized applications using:

Docker, Podman, Kubernetes

Support application deployments for:

React applications, Node.js applications, Spring Boot applications

Perform container troubleshooting, performance tuning, and resource optimization.

Support Kubernetes cluster operations, deployment configurations, secrets management, ingress configuration, and scaling activities.

System Engineering & Administration

Maintain middleware and application platform configurations.

Support Linux and Windows server environments.

Perform system patching, configuration updates, and preventive maintenance activities.

Manage environment configurations across DEV, SIT, UAT, and Production environments.

Support certificate renewal, configuration management, and secure connectivity setup.

Maintain deployment scripts, automation scripts, and operational tools.

Monitoring & Reliability Engineering

Configure and maintain monitoring dashboards, alerts, and health checks.

Monitor system availability, application performance, and resource utilization.

Support log analysis and troubleshooting using centralized logging tools.

Identify proactive improvement opportunities to enhance operational stability and reliability.

Documentation & Compliance

Prepare and maintain:

System architecture documentation, Deployment procedures, Operational runbooks, Troubleshooting guides, SOPs and technical reports, Support audit activities, security compliance reviews, and operational assessments.

Qualifications & Experience

Educational Qualification: Diploma or bachelor’s degree in: Computer Science/ Information Technology /Software Engineering/ Computer Engineering Or related disciplines

Experience Requirements: Minimum 3 years of relevant working experience in:

Software system engineering, DevOps engineering, Application support, Production support

Platform/system administration

Experience supporting enterprise or mission-critical systems is highly preferred.

Experience in government or large-scale enterprise environments will be an advantage.

Mandatory Technical Skills

Strong knowledge of:

Linux administration, Application deployment and troubleshooting, CI/CD pipeline implementation, Container technologies and orchestration

Hands-on experience with:

GitLab CI/CD, Jenkins, Docker, Podman, Kubernetes, Git

Familiarity with: React, Node.js, Spring Boot

Working Environment

24/7 operational support environment

May require standby support and after-office-hour deployment support

Collaborative environment involving infrastructure, cybersecurity, application, and operations teams