Application Support Engineer

NTT DATA; Cyberjaya; On-site; MYR 60,000 - 85,000; Full time

Job summary

NTT DATA in Cyberjaya, Malaysia is seeking an Application Support Engineer to join our team. You will lead pre-migration readiness, assess applications and dependencies, validate connectivity, and coordinate with Infrastructure, Network, and Database teams to ensure a smooth cutover.

You will document risks, validate backups and DR readiness, review configurations, and monitor performance during restack and hypercare. The role requires meticulous validation and cross-functional collaboration.

Job description

We are currently seeking a Application Support Engineer to join our team in Cyberjaya, Selangor (MY-10), Malaysia (MY).

• Governance, Planning & Readiness (Pre-Migration)
• Application & Dependency Assessment
• Identify all applications hosted in Cyberjaya Data Centre, categorizing by:
  • Business criticality (Baseline/Important/Critical)
  • Recovery Time Objective (RTO) / Recovery Point Objective (RPO) requirements
  • Upstream and downstream systems
  • External integrations (e.g., CTOS, CCRIS, CBM, SOA gateways, MQs, APIs)
  • Shared services (LDAP, SMTP, monitoring tools, batch schedulers)
• Identify hard dependencies such as:
  • IP addresses, VLANs
  • Hostnames
  • Firewall rules
  • Certificates
• Compliance & Regulatory Alignment
• Validate data residency requirements per BNM, PDPA, and OCBC internal policies
• Confirm segregation requirements for SG DR vs MY PROD environments
• Ensure application architecture complies with:
  • Environment isolation
  • Audit and logging standards
• Perform Application Impact Assessment covering:
  • Month-end / quarter-end constraints
• Identify single points of failure
• Document risks and mitigation, including:
  • Rollback complexity
  • Network & Connectivity Validation
• Review new network design from Infrastructure/Network teams:
  • New IP ranges (if required)
  • VLAN separation
• Validate application connectivity assumptions:
  • Static IP whitelisting
  • Northbound / Southbound traffic flows
• Application Configuration Review
• Identify application configurations requiring changes:
  • Properties files
  • Connection strings
• Identify hardcoded values that require remediation
• Assess application readiness for:
  • IP address changes (if required)
  • Hostname changes (if required)
  • DNS re-pointing (if required)
• Non-Functional Readiness
• Validate expected performance in the re-stacked environment:
  • Bandwidth needs
  • Confirm High Availability (HA) and clustering behavior post-restack
• Pre-Migration Preparation
• Environment Clean-up & Standardisation
• Remove obsolete configurations
• Decommission unused application components
• Backup & Data Protection
• Ensure recent full backups have been completed
• Validate backup restore tests
• Confirm database/application backup ownership and rollback data retention policies
• Certificate & Security Readiness
• Validate TLS/SSL certificates (if required):
  • IP-bound vs hostname-bound certificates
  • Expiry checks
• Coordinate certificate renewal or re-issuance if needed
• Review application secrets management (vault references, keystore paths)
• Migration / Restack Execution Support
• Change & Release Management
• Raise and track application change requests (including emergency changes)
• Support Change Approval Committee (CAC) with:
  • Impact summaries
  • Rollback steps
• Align migration windows with business calendars and batch windows
• Application Migration Activities
• Handle cluster node management if applicable
• Coordinate closely with Wintel/Unix, Database, Network, and Storage teams
• Real-Time Monitoring During Cutover
• Monitor application logs, error rates, and connection failures
• Perform smoke tests immediately after migration
• Provide real-time status updates to WAR room and stakeholders
• Functional Validation
• Execute application validation checklist:
  • Login, transactions, batch submissions, message flows
  • Validate integration with external bureaus and downstream systems
  • Confirm batch jobs complete successfully
• DR Readiness Validation
• Connectivity from SG
• Support DR drills or simulations if required
• Update DR runbooks and procedures accordingly (if required)
• Performance & Stability Monitoring
• Monitor latency, throughput, and error spikes
• Support hypercare and transition to Business-As-Usual (BAU)
• Documentation & Knowledge Management
• Document Updates
• Update application architecture diagrams, network connectivity diagrams and environment topology (if required)
• Knowledge Transfer
• Brief Support Teams on:
  • New environment layout
  • New IP ranges and hostnames (if required)
• Update knowledge transfer materials and FAQs
• Stakeholder & Communication Responsibilities
• Act as Single Point of Contact (SPOC) for:
  • Application Teams
  • Business users
  • Project teams
  • Infrastructure teams
• Provide regular updates on:
  • Migration status
  • Risk assessments
  • Go-Live sign-off confirmation
• Support audit and evidence requests post-implementation
• Post-Implementation Review (PIR)
• Participate in PIR sessions to:
  • Identify gaps and remediation items
• Highlight improvements for:
  • Automation
  • Support closure of all change records

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners.NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

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NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.

Job Segment:Technical Support, Database, Developer, Data Center, Unix, Technology

Location:Cyberjaya