Programmer and Data Migration Executive

PEOPLE PROFILERS PTE. LTD.; Singapore; On-site; SGD 39,000 - 50,000; Full time

Job summary

PEOPLE PROFILERS PTE. LTD. in Singapore seeks a Data Migration Specialist with 2–5 years of hands-on experience in data migration, cutover, or production implementations.

You will design and execute migration scripts using VBA and Python, validate outcomes, and manage pre-, during-, and post-migration activities for complex telecom datasets. Key responsibilities include data cleansing, ensuring rollback readiness, coordinating with customers and partners, and documenting all steps for audit and

Qualifications

• 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.

Responsibilities

• 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.
• Validate the script for all batches prior to implementation.
• 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 LP, NP, and partial LP related datasets.
• Validate LP data accuracy and rectify dirty data.
• Weekly data validation prior to batch finalization.
• Regular MSAN IP reachability checks and document results.
• Coordinate with Customer and Huawei teams to address exceptions.

Skills

Data migration

System cutover

Data validation

Rollback procedures

Telecommunications

KPI monitoring

Production systems

Education

IT/CS/Engineering degree

Data management certs (advantage)

Tools

VBA

Python

Job description

• 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 inInformation Technology, Computer Science, Engineering, Telecommunications, or related disciplines.
• Relevant professional certifications indata management, scripting, or telecommunications systemswill be an advantage.

Technical Skills & Experience

• Minimum2–5 years of hands-on experienceindata migration, system cutover, or production implementationenvironments.
• Proven experience indeveloping and executing migration scriptsusingVBA, Python, or similar scripting languages.
• Strong understanding ofdata validation, reconciliation, and rollback proceduresin large-scale migrations.
• Experience handlinglarge and complex datasets, including data cleansing and rectification of dirty data.
• Familiarity withtelecommunications systems and workflows, including:
• Local Port (LP), Number Portability (NP), and partial LP processes
• MSAN systems andIP reachability testing
• Experience performingpre-migration, during-migration, and post-migrationactivities, including call testing and service validation.
• Ability to execute and interprettest matrices, inbound/outbound call scenarios, and KPI monitoring during cutover.
• Comfortable working withproduction systemsand managing high-risk migration windows.

Operational & Process Knowledge

• Strong understanding ofend-to-end service provisioning and migration workflows.
• Experience inbatch migration planning, execution, and tracking.
• Ability to produce clear and accuratemigration documentation, logs, and audit evidence.
• Familiarity withchange management and work order (WO) processes.

Stakeholder & Communication Skills

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

Personal Attributes

• Highlydetail-orientedwith strong analytical and problem-solving skills.
• Able to work independently with minimal supervision while managingmultiple migration batches.
• Calm and effective under pressure, especially duringlive cutover and after-hours migration activities.
• Willingness to supportnight, weekend, or public holidaymigration windows when required.

Preferred / Advantageous

• Experience intelecommunications or ISP environments.
• Exposure tolarge-scale system transformation or legacy-to-new-platform migrations.
• Familiarity withKPIs, dashboards, or operational monitoring tools.

Additional notes:

• Able to commit from October t2026- May 2027
• Able to work staggered hours -for e.g. 9 to 6pm or 11am to 8pm or 1pm to 10pm etc.
• Salary up to $4500
• Working Location: Jurong

JOB ID:7X4Y4985

All Successful candidates can expect a very competitive remuneration package and a comprehensive range of benefits.

People Profilers Pte Ltd

20 Cecil Street, #08-09, Plus Building, Singapore 049705

Tel: [phone]

EA Licence Number: 02C4944

EA Registration Number: R1108448

EA Personnel: Tan Lili Gesse