Sunju Lim
Seoul
Summary
Account manager with expertise in client relationship management and strategic planning at Samsung SDS. Stabilized profit/loss systems and authored impactful proposals for defense projects. Skilled in financial management and communication, driving project success and aligning with organizational objectives in competitive environments.
Overview
3
3
years of professional experience
Work History
Account Manager, Defense Business Group
Samsung SDS
07.2024 - Current
- Financial & Performance Management: Stabilized and managed core profit/loss index systems, including enterprise management plans, monthly flash reports, and Business Opportunity (BO) tracking.
- Strategic Documentation: Planned and authored strategic reports, proposals, and policy materials for major defense projects.
- Client Management: Oversaw overall client relationship operations for high-profile events including REAL Summit, academic conferences, and VIP summits.
- Managed project roadmaps for Defense Cloud TF 1.0/2.0, C4I Generative AI feasibility, and Air Force/Joint BO data organization to ensure alignment with strategic objectives.
- Detailed Technical Experience: Authored comprehensive Strategy/Management/IR materials: 2025 IR performance reports, quarterly/annual business directions (Cloud, CSP, MSP, ERP, etc.), and CEO-level briefing reports.
- Developed mid-to-long-term business roadmaps by analyzing customer and competitor trends in defense market to inform strategic direction.
- Prepared administrative documentation including meeting minutes, customer seminar proposals, and advisory committee cost allocation documents.
- Conducted Profit/Loss (P&L) analysis: Led monthly defense sector performance management and identified new BOs using mySales.
Sales Management Intern
Lotte Shopping Co., Ltd.
01.2024 - 03.2024
- Managed sales operations for product categories, display, ordering, inventory, and revenue tracking to ensure streamlined processes.
- Analyzed product sales trends by store category and time of day to inform inventory optimization strategies.
- Planned weekly goal-achievement events and created performance growth reports comparing targets to previous year for strategic insights.
Sales Intern
Megazone Cloud
06.2023 - 09.2023
- Secured leads by identifying sales opportunities through in/outbound calls to domestic enterprise databases.
- Planned promotions and webinars; consulted with existing and potential clients on service inquiries and contracts.
- Managed CRM tools to track and analyze comprehensive customer data.
IT Specialist Intern
EY Hanyoung
12.2022 - 03.2023
- Executed data simulations and visualized JE analysis results, delivering actionable insights for clients.
- Led data extraction and journal entry (JE) analysis projects with EY Global Python Program to enhance data accuracy.
- Oversaw complex financial datasets (COA, Financial Statements, Comprehensive Income Statements) in Excel to ensure data integrity.
- Communicated with clients to review filter conditions and interpretation of FY22 JE Test deliverables.
Education
Bachelor's Degree - Public Administration, Data Science
Sungkyunkwan University
Seoul, South Korea08-2024
High School Diploma - Japanese Language Department
Gwacheon Foreign Language High School
Gwacheon, South Korea02-2019
Skills
- Client relationship management
- Defense industry knowledge
- Proposal development
- Sales strategy development
- Project management
- Strategic planning
- Financial management
- Compliance oversight
- Adaptability and forecasting
- Communication skills
Activities
- 2023 PEAkathon (P&G Korea), Developed a sales activation strategy for Gillette; advanced to the national selection round., 11/01/23, 12/01/23
- Seodaemun Deaf Welfare Center, Conducted weekly growth mentoring for elementary children from deaf families, focusing on health, learning, and cultural activities., 01/01/23, 07/01/23
- Data Science R Project, Conducted an EDA project using RStudio to optimize paramedic personnel relocation within Gyeonggi-do., 09/01/22, 12/01/22
- DScover (Data Analysis Society), Served as an executive member; conducted projects on Seoul bike (Ttareungyi) rental patterns and machine learning/deep learning studies using Tableau and TensorFlow., 02/01/22, 02/01/23
- Korea Internet & Security Agency (KISA) Innovation Panel, Evaluated and proposed improvements for KISA's general management plans from a citizen's perspective., 02/01/22, 01/01/23
- Data Analysis Competency Project, Won Grand Prize for a Python-based simulation project analyzing patterns in 5 years of professional baseball data., 03/01/22, 07/01/22
- YPICS (SCM Society), Studied RPA using UiPath and analyzed SCM research papers., 03/01/22, 07/01/22
- Samsung Securities YAHO Volunteer, Taught basic economics and financial literacy to elementary students., 02/01/21, 11/01/21
Languages
Korean
Native
Native
English
Proficient (C2)
C2
Japanese
Proficient (C2)
C2
Timeline
Account Manager, Defense Business Group
Samsung SDS
07.2024 - Current
Sales Management Intern
Lotte Shopping Co., Ltd.
01.2024 - 03.2024
Sales Intern
Megazone Cloud
06.2023 - 09.2023
IT Specialist Intern
EY Hanyoung
12.2022 - 03.2023
Bachelor's Degree - Public Administration, Data Science
Sungkyunkwan University
High School Diploma - Japanese Language Department
Gwacheon Foreign Language High School