Professional Experience:
Professional Experience:
Senior Researcher — BOMYUNG I&C, Suwon, South Korea (Apr 2025–Present)
R&D on advanced antenna systems: slot antennas, phased arrays for beamforming/beam steering, UWB, 5G NR MIMO, and reconfigurable architectures.
Own full lifecycle: requirements → EM simulation (CST Studio Suite) → prototyping → measurement → analysis (MATLAB/Python) → documentation/IP.
Collaborate with cross-functional teams to translate system specs into manufacturable antenna designs and qualification test plans.
RF Engineer — CMPak / Huawei Split Cell Project
Produced reports for new R/O sites, split cells, and added sectors; maintained accurate rollout documentation.
Coordinated with customers to ensure on-time, issue-free execution.
Performed sector/site optimization to meet key KPIs; reviewed Drive Test (DT) reports, flagged discrepancies, and drove resolution.
Customer Complaint Engineer — Turnotech Pvt (Zong/Huawei 3G/4G NPM Project)
Handled network-level customer complaints; executed hard-parameter optimizations to stabilize service.
Resolved issues end-to-end and delivered clear, actionable reports for swapped (2G/4G) and new rollout (3G/4G) sites.
Ran coverage and fixed-point throughput tests using TEMS Investigation; synthesized findings for stakeholders.
RF Engineer — Mobilink ZTE 2G/3G Swap, Central Region (Apr 2016–Oct 2016)
Conducted 2G/3G SSV (WCDMA/GSM 900/1800); executed throughput, ping, handover, and cell-reselection tests.
Performed drive tests for on-air sites, physical audits, and antenna orientation checks.
Created thematic maps and log-file analyses in MapInfo Professional; validated R99/HSDPA/HSUPA/HSPA data services.
RF Engineer — Mobilink Huawei 3G R/O, Central Region (Nov 2015–Apr 2016)
Led WCDMA single-site verification (SSV) for 3G rollout, ensuring readiness against acceptance criteria.