Programmer and Data Migration Executive

• 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 the 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 October 2026- May 2027 • Monday to Friday 9pm to 6pm - May be required to work staggered hours /overtimes/weekends (when necessary only). • 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. 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