Programmer and Data Migration Executive

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