Job Description

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Responsibilities are:

• Generate the migration scripts (e.g. VBA and Python) required for all batches
• Ensure rollback scripts are included for all batches in every Work Order
• Responsible to validate the script for all batches in every Work Order prior implementation
• To perform preliminary automated sorting and generate system-assisted grouping outputs.
• Conduct comprehensive manual validation to ensure accuracy of all preliminary outputs.
• Ensure end-to-end alignment of service types
• Process and organize all the local port (LP), number port (NP), and partial LP related data sets
• Conduct thorough validation to confirm the accuracy, consistency and correctness of all LP data sets
• Rectify data discrepancies (dirty data) through systematic correction, clarification or escalation to Customers team
• Perform weekly data validation exercise prior to batch finalization to ensure datasets remain up-to-date and migration ready
• Conduct regular check of MSAN IP reachability to ensure network readiness for migration
• Document all reachability tests and highlight any in-accessible nodes for rectification

Pre-migration activities
Perform pre-migration checks and testing to ensure service readiness, including:

• Test matrix execution;

• Inbound/outbound call scenarios;

• Confirmation that subscriber data is fully synchronized prior migration;

• Identification and rectification of anomalies that may impact the migration process

During-migration activities
Carry out migration activities in accordance with the approved cutover schedule, including:

• Execution of approved migration scripts for provisioning, rollback;

• Real-time monitoring of migration status and KPIs;

• Immediate troubleshooting and escalation of any errors, mismatches, or failed migration entries;

• Coordination with Customer and Huawei teams to validate progress and address exceptions;

• Documentation of all actions performed during the migration window

Post-migration activities

• Perform post-migration call testing;

• Validate that subscribers services are fully restored and operating as expected;

• Conduct post-migration monitoring to detect abnormalities or service degradation;

• Rectify all post-cutover issues prior to work order (WO) closure; and

• Submit complete migration evidence, logs and reports for Customer verification and audit.

Requirements

• Diploma or Degree in Information Technology, Computer Science, Engineering, Telecommunications, or related disciplines.
• Relevant professional certifications in data management, scripting, or telecommunications systems will be an advantage.

Technical Skills & Experience

• Minimum 2-5 years of hands-on experience in data migration, system cutover, or production implementation environments.
• Proven experience in developing and executing migration scripts using VBA, Python, or similar scripting languages.
• Strong understanding of data validation, reconciliation, and rollback procedures in large-scale migrations.
• Experience handling large and complex datasets, including data cleansing and rectification of dirty data.
• Familiarity with telecommunications systems and workflows, including:

• Local Port (LP), Number Portability (NP), and partial LP processes
• MSAN systems and IP reachability testing
• Experience performing pre-migration, during-migration, and post-migration activities, including call testing and service validation.
• Ability to execute and interpret test matrices, inbound/outbound call scenarios, and KPI monitoring during cutover.
• Comfortable working with production systems and managing high-risk migration windows.

Operational & Process Knowledge

• Strong understanding of end-to-end service provisioning and migration workflows.
• Experience in batch migration planning, execution, and tracking.
• Ability to produce clear and accurate migration documentation, logs, and audit evidence.
• Familiarity with change management and work order (WO) processes.

Stakeholder & Communication Skills

• Proven ability to coordinate with customers, vendors, and technology partners (e.g. system integrators, network vendors such as Huawei).
• Able to clearly escalate issues, propose solutions, and provide timely status updates during migration windows.
• Strong written and verbal communication skills for technical documentation and reporting.

Personal Attributes

• Highly detail-oriented with strong analytical and problem-solving skills.
• Able to work independently with minimal supervision while managing multiple migration batches.
• Calm and effective under pressure, especially during live cutover and after-hours migration activities.
• Willingness to support night, weekend, or public holiday migration windows when required.

Preferred / Advantageous

• Experience in telecommunications or ISP environments.
• Exposure to large-scale system transformation or legacy-to-new-platform migrations.
• Familiarity with KPIs, dashboards, or operational monitoring tools.

Additional notes:

• Able to commit from April to Dec 2026
• Able to work staggered hours -for e.g. 9 to 6pm or 11am to 8pm or 1pm to 10pm etc.
• Salary up to $5000
• Working Location: Jurong

JOB ID:7X4Y4985
All Successful candidates can expect a very competitive remuneration package and a comprehensive range of benefits.
Kindly email your resume in a detailed Word format to gesse.tan@peopleprofilers.com
We regret that only shortlisted candidates will be notified
People Profilers Pte Ltd
20 Cecil Street, #08-09, Plus Building, Singapore 049705
Tel: 69509745
EA Licence Number: 02C4944
EA Registration Number: R1108448
EA Personnel: Tan Lili Gesse

Skills Required