Dohun Kim
Vancouver,Washington
Summary
Strategic and hands-on IT leader with 15+ years of experience driving enterprise-wide technology transformations across education, publishing, finance, and retail. Expertise in performance engineering, cloud-native architecture (AWS, Docker, Lambda), and system modernization initiatives. Proven ability to lead cross-functional teams, manage large-scale IT operations, optimize ERP and backend systems, and deliver scalable, AI-integrated technology solutions. Strong background in CI/CD pipelines, data governance, site reliability engineering (SRE), and leveraging generative AI for productivity and automation.
Overview
25
25
years of professional experience
1
1
Certification
Work History
Tech Lead/Chief Performance Engineer
Scholastic
New York, NY
02.2019 - Current
- Led performance engineering initiatives for Scholastic’s enterprise eCommerce and backend systems, ensuring reliability during high-traffic periods such as Back-to-School season.
- Developed and executed over 1,000 test scenarios—including chaos, endurance, and load testing—using JMeter and CI/CD-integrated frameworks.
- Implemented executive-level EIS dashboards for real-time visibility into traffic volume, latency, and error rates.
- Spearheaded system performance and scalability projects for Florida and Louisiana state education program platforms, ensuring compliance with regional data policies, and supporting high-volume access from school districts.
- Optimized backend services to support curriculum delivery, assessment tools, and reporting systems tailored for K–12 public education in diverse learning environments.
- Leveraged generative AI tools to accelerate diagnostics and root cause analysis, reducing resolution time by 30%.
- Mentored engineering teams across performance testing, monitoring, and system tuning, elevating overall operational maturity.
Tech Lead/Chief Performance Engineer
Kaplan
New York, NY
11.2016 - 02.2019
- Architected and deployed CI/CD-aligned test framework using Taurus, JMeter, and Jenkins for 50K+ concurrent users.
- Established Kaplan Performance Certificate program to enhance performance testing skills of engineers.
- Enhanced system efficiency by 50% through implementation of performance standards for new product platforms.
- Developed a KPR (Kaplan Realtime Performance) board to monitor the back-end and front-end systems.
- Led QE/Performance engineers Group to fulfill the QA workflow
Sr. Performance Engineer
Express
Columbus, OH
04.2016 - 11.2016
- Conducted performance testing for OMS and RMS systems, simulating 50,000 concurrent users.
- Optimized system bottlenecks using AWR, Solarwinds, and New Relic, increasing transaction capacity by 20%.
- Developed test scenarios and JMeter scripts for OMS and RMS to transition from legacy systems.
- Performed smoke, stress/load, and endurance tests on data interfaces and scheduler jobs.
Sr. Performance Engineer
Ibeta
Aurora, CO
03.2015 - 02.2016
- Designed and developed JMeter testing scripts for high-traffic online education systems.
- Executed performance tests simulating 50,000 concurrent users across nine test scenarios.
- Identified performance issues and optimized DB indexing, memory, and application caching.
- Conducted smoke, stress/load, and endurance tests over 24 hours to evaluate system robustness.
Director of QA
Iasa
Norwood, NJ
01.2010 - 11.2014
- Spearheaded enterprise-wide QA strategy for functional, UAT, and performance testing across global IT initiative.
- Architected global performance testing framework for SAP data interface systems to ensure reliable integration.
- Directed QA and performance testing for major clients including LG Electronics, Hyundai, and Kia, maintaining quality standards.
- Led distributed QA teams in advanced test case design and defect lifecycle management, enhancing release quality.
IT Manager/Integration Architect
CNBC
Englewood Cliffs, NJ
11.2006 - 12.2009
- Executed system planning, design, development, debugging, and QA for Virtual Trading system in Million Dollar Awarded Online Trading Contest.
- Managed onshore and offshore engineers for QA and performance testing using JMeter and HP ALM.
- Designed performance tests with JMeter, identifying issues from third-party data provider Wall Street On Demand.
- Collaborated with management team to reschedule system launch, preventing future complications; received Ovation award from GE.
- Facilitated Agile and Scrum adoption to enhance SDLC quality and efficiency within CNBC IT division; awarded Ovation from GE.
IT Manager
Samsung SDS
Ridgefield Park, NJ
01.2000 - 11.2006
- Developed and maintained B2B, B2C, B2E, and B2P e-commerce sites for Samsung Electronics North America across Canada and USA.
- Implemented 23 web systems utilizing J2EE, Broadvision, and legacy SAP for enhanced transaction capabilities.
- Executed system analysis following IT governance protocols to enhance user support systems.
- Trained in-house engineers on ITIL standards to facilitate new resource management policies.
Education
Master of Science - Management Information Systems
New Jersey Institute of Technology
Newark, NJ12-2000
MBA - International Business
Chung-Ang University
Seoul, Korea02-1995
Bachelor of Arts - Education
Chung-Ang University
Seoul, Korea02-1991
Skills
- CDN, Caching techniques
- Reactjs, Nodejs, Next JS, Typescript, Graph QL, Bootstrapjs, HTML5, XML, CSS3, JavaScript
- Java, Spring boot, No sql technologies(Mongo DB)
- REST services, Kafka/MQ, Redis, ELK, Azure / AWS, Prometheus/Grafana,
- Git, Jira, Jenkins, Docker, Kubernetes, Cursor,
- Datadog, Appdynaics, Newrelic, sumologic
- IT strategy and governance
- Cross-functional leadership
- Data monitoring and observability
- Performance engineering and SRE
- Team leadership/Mentoring engineers
- CI/CD automation/Gen AI
Languages
English
Full Professional
Korean
Native/ Bilingual
Spanish
Limited
Chinese
Limited
Certification
- Sun Certified Java Programmer (SCJP)
- ITIL Master | ISO 20000 | Six Sigma
- OpenAI Developer Tools & Prompt Engineering (self-study)
- BEA WebLogic, Broadvision, S/W Security Manager
Accomplishments
- Ovation award(GE): 2007
- Presidential award of Chung-Ang University: 1991
- Commander award of Korean Army: 1993
- General Secretary of MBA Student Committee: 1995
- Korean Army Administration Officer(Lieutenant): 1991-1993
- Chairman of Chung-Ang Univ. ROTC: 1991
Affiliations
- JW Chorale Member: 2023 to current
References
References available upon request.
Timeline
Tech Lead/Chief Performance Engineer
Scholastic
02.2019 - Current
Tech Lead/Chief Performance Engineer
Kaplan
11.2016 - 02.2019
Sr. Performance Engineer
Express
04.2016 - 11.2016
Sr. Performance Engineer
Ibeta
03.2015 - 02.2016
Director of QA
Iasa
01.2010 - 11.2014
IT Manager/Integration Architect
CNBC
11.2006 - 12.2009
IT Manager
Samsung SDS
01.2000 - 11.2006
Master of Science - Management Information Systems
New Jersey Institute of Technology
MBA - International Business
Chung-Ang University
Bachelor of Arts - Education
Chung-Ang University
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