Summary
Overview
Work History
Education
Skills
Timeline
Generic

Sangjin Kim

CS Engineer
Pyeongtaek-si,41

Summary

With 9 years of experience as a service engineer, I have developed expertise in diverse technical maintenance and repair tasks. I am proficient in optical and lens-related CS management and process control, with extensive experience diagnosing and resolving issues related to laser oscillators and NC controllers. Ability to communicate effectively with clients has enabled to handle troubleshooting and problem-solving with professionalism and precision. Drawing on experience across various processes, I am dedicated to ensuring customer satisfaction through efficient and reliable service.

I possess strong English communication skills that enable effective interaction with international clients . I bring professional technical expertise, a positive attitude in client-facing roles, and persistence in addressing challenges. My dedication, reliability, and exceptional A/S technical support have earned the trust of my customers, allowing me to consistently deliver outstanding service.

Overview

10
10
years of professional experience
7
7
years of post-secondary education

Work History

CS Engineer

HK Laser&System
Hwaseong-si, Gyeonggi-do
09.2018 - Current

Specialized in maintenance and optimization of CO₂ laser and fiber laser systems, delivering exceptional technical expertise and problem-solving skills to enhance customer satisfaction.

CO₂ Laser Optics Alignment and Inspection

  • Performed precise alignments: Conducted regular inspections and optimized the alignment of CO₂ laser system optics to enhance equipment performance.
  • Minimized equipment downtime: Standardized inspection processes, resolving over 90% of issues on-site within the same day, maximizing operational efficiency.

CO₂ Oscillator Preventive Maintenance (PM)

  • Designed and implemented preventive maintenance programs: Extended oscillator lifespan and prevented performance degradation through company-level preemptive service programs, delivering over 10 PM services annually.

Fiber Laser Head Optics Inspection and Replacement

  • Swift replacement operations: Provided rapid inspection and replacement of fiber laser head optics upon customer request, contributing to improved productivity.
  • Supported various equipment manufacturers: Built trust through preemptive diagnostics tailored to the specifications of multiple fiber laser and head manufacturers.

Customer Inspection Process Optimization

  • Improved preemptive inspection procedures: Developed processes to identify and mitigate potential issues before warranty expiration, strengthening operational stability for clients.
  • Enhanced on-site responsiveness: Increased the speed and accuracy of issue resolution, significantly boosting customer satisfaction.

Siemens NC/PLC Alarm Diagnostics and Troubleshooting

  • Accurate alarm diagnostics: Swiftly analyzed and identified root causes of alarms and errors in Siemens NC/PLC systems, providing effective solutions.
  • Strengthened equipment stability: Reduced reactivation times and significantly improved production line reliability through diagnostic and resolution efforts.
  • Conducted training and manual development: Delivered training sessions for client maintenance teams, equipping them with alarm diagnostic and basic troubleshooting knowledge.
  • Maintenance and diagnostics of CO₂ and fiber laser optics systems
  • Preventive maintenance of laser oscillators and heads
  • Siemens NC/PLC alarm diagnostics and troubleshooting
  • Customer-focused problem-solving and preemptive inspection process development
  • Multilingual capabilities for overseas equipment installation and service delivery
  • Collaboration with U.S. and European agents to establish robust response mechanisms (average of three overseas trips per year)
  • Conducted 219 service and preemptive inspections in 2024
  • Enhanced production line stability through Siemens NC/PLC alarm diagnostics and resolutions
  • Contributed to increased equipment uptime and reduced maintenance costs
  • Strengthened long-term partnerships by improving customer satisfaction and trust
  • Enhanced maintenance efficiency of laser systems, elevating the company's service competitiveness

CS Engineer

HK Laser&System
Hwaseong-si, Gyeonggi-do
02.2015 - 09.2017

Education

Bachelor of Science - Physics

Hanyang Univ. ERICA
Ansan-si, South Korea
03.2006 - 02.2013

Skills

Time management

Root-cause analysis

Technical reporting

Data analysis

System troubleshooting

Time management

Timeline

CS Engineer

HK Laser&System
09.2018 - Current

CS Engineer

HK Laser&System
02.2015 - 09.2017

Bachelor of Science - Physics

Hanyang Univ. ERICA
03.2006 - 02.2013
Sangjin KimCS Engineer