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WonYoung Yoon

Solutions Architect

Mundelein, IL, USA
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Careers

Senior Consultant

Gnosys Inc

Freelancer09/2021 -
  1. CRM / QOI System (Retail): Successfully developed and deployed an in-house CRM/QOI system using Blazor 8, Azure SQL, RabbitMQ, SMS. Managed a team to implement a CI/CD pipeline, ensuring smooth software deployment. Communicated effectively with stakeholders, aligning project goals with organizational objectives. Facilitated software teams to deliver high-quality solutions and provided regular status reports on development, quality, operation, and system performance to management.
  2. EDI Integration (Manufacturing/Freight): Develop, maintain, and monitor document/data mapping, ensuring compliance with industry standards. Analyze transaction sets for accuracy, conduct testing and troubleshooting for system maintenance. Provide ongoing EDI support to internal teams and clients. Liaise with vendors for successful solution implementation.
  3. SQL Server Cluster Migration: Led migration of on-premises MS SQL Server, PostgreSQL, and MariaDB to Azure SQL, ensuring a seamless transition. Executed a comprehensive plan for SQL Server Cluster migration, encompassing data transfer, configuration, and optimization in the Azure environment. Collaborated with cross-functional teams to mitigate potential challenges and ensure minimal downtime during the migration process. Successfully completed the migration, optimizing performance and reliability in the Azure SQL environment.
  4. WMS System (Distribution): Led full-stack development of PHP applications with a MySQL Cluster. Implemented ETL processes for seamless data management. Utilized Azure DevOps for efficient project coordination and version control. Incorporated Bootstrap framework to achieve a responsive design, enhancing user interface.
Senior Architect

Next Level Distribution

Full time contract12/2019 - 12/2023
  1. Led ERP system migration to distributed architecture with RabbitMQ, MS SQL Server cluster, and Redis caching.
  2. Developed React.js and Blazor web apps for the new ERP, using JWT and OAuth2 for authentication.
  3. Built a Customer Portal Web App with Python FastAPI, React.js, RabbitMQ, and Redis caching, deployed on AWS EKS and Azure AKS, resulting in 138% faster customer experience.
  4. Managed Azure and AWS CI/CD Pipelines for Kubernetes deployment using Terraform and Ansible.
  5. Orchestrated GitLab clusters for bare metal, VMWare vSphere, and Docker using Terraform and Ansible.
  6. Engineered low-latency network protocols in C# .NET, Java (Spring Boot), and Python (FastAPI) for ERP integration.
  7. Automated CUPS printer deployment across offices and warehouses with bash scripting.
  8. Designed SMS marketing infrastructure with C# .NET, Twilio API integration, and EDI integrations.
  9. Implemented automated workflows for partner disbursements using C# .NET microservices.
  10. Managed end-to-end networking and VOIP telephony infrastructure optimization.
  11. Implemented automated backup and failover solutions for data protection and continuity.
  12. Engineered firewalls, administered SentinelOne, leading to 10% efficiency increase.
  13. Led mission-critical database design and administration (MS SQL Server, PostgreSQL, MySQL).
  14. Established resilient database clusters and disaster recovery protocols for continuous availability.
  15. Designed efficient database applications and UIs for organizational access.
Director of IT

C.E.C. Inc.

Full time contract01/2010 - 12/2019
  1. Developed an in-house ERP system using C# .NET, scaled for multi-regional offices with a 61% increase in uptime.
  2. Integrated the ERP with diverse 3rd-party devices, showcasing hardware integration skills.
  3. Managed VPN and VOIP infrastructure across branches, demonstrating network management expertise.
  4. Engineered B2B Integration with microservices (C# .NET, Java, Python) across various mediums.
  5. Implemented EDI channels for 30+ Trading Partners, migrating to Liaison ECS for standard compliance.
  6. Led data warehousing initiatives, optimizing storage by 23% and excelling in strategic reporting.
  7. Executed a successful big data program, emphasizing data analysis and storage optimization.
  8. Supervised AJAX stack implementation, enhancing web portal UI performance.
  9. Integrated PCI Compliant payment systems with multiple banks and gateways.
  10. Automated database-driven transactions, reducing times by 70% using SSAS, SSIS, and DTS packages.
  11. Slashed query execution times by 48% through meticulous T-SQL code redesign.
  12. Engineered 9 data pipeline procedures, optimizing processing times by 19%.
  13. Collaborated to develop an advertising analysis tool, resulting in a 15% sales increase.
  14. Devised a comprehensive disaster recovery plan ensuring data integrity and system continuity.
Primary Architect

Micomp Computer Center

Full time contract09/2009 - 12/2009
  1. Engineered a WEB 2.0 ERP system in C# .NET, emphasizing end-to-end expertise in ERP development and UI design.
  2. Executed ETL processes through C# .NET microservices, showcasing adeptness in data migration and microservices-based ETL development.
  3. Engineered a versatile Business Intelligence package using SSAS and SSRS, proficient in crafting flexible reporting solutions for data analysis.
  4. Developed robust data access layers and core business logic for the ERP in C# .NET, showcasing efficient and scalable business solutions.
  5. Collaborated closely with clients for UI issues and customization requests, emphasizing client-centric problem-solving.
  6. Boosted system performance by 20% through memory management reinforcement, showcasing system optimization skills.
  7. Designed a Wireless Inventory Maintenance program, enhancing warehouse inventory management.
  8. Administered extensive web farms and databases for over 50 corporate websites, adept in large-scale web farm management.
  9. Conducted performance tuning, optimized queries, and implemented error management systems using SSIS, SSAS, and SSRS.
  10. Automated PO transaction ETL processes using EDI, XML, and CSV for streamlined procurement operations.
  11. Enhanced internal network security, modified Point-of-Sale software, and implemented robust data security measures.

Education

Purdue University

Computer & Electrical Engineering

09/1999 - 05/2004High School / GEDClass of 2004
Skills
PythonSenior DevOps EngineerNetwork EngineeringSQL.NET
ExperienceSenior-level8+ years
Hourly rate$80/hr
Open to
remotehybridonsite

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