Sung-Whi K.

FULL STACK DEVELOPER

586 dollar
Freelancer
23 ans
Strasbourg, FRANCE

Mon expérience

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FreelanceJuly 2011 - Présent

Experience with wide variety of projects for small web consultancy to large corporations. Comfortable with working on both the front and back-end using the latest technologies.

Participation in the development of 40 projects. Notable projects are:
- Took over a SEO SAAS application project built in Angular 4, which was in an incomplete state and abandoned by the previous developer. Successfully completed and launched the application in 60 days.
- Built 5 Shopify applications using Laravel 5.
- Rebuilding a large warehouse management and billing system from ASP & SQL server to Laravel, AngularJS and PostgreSQL.
- A google maps based health care provider application.
- Performance optimization of a mobile application for Lexus using Node.js.
-- 8 e-commerce stores built from the ground up.
- A custom e-commerce and CMS system built for performance, security, flexibility, and ease of use.
- Performance optimization of an e-commerce store.
- Conversion of 3 websites to responsive design.
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Soulspeed PerformanceJanuary 2003 - January 2007

- Starting and operating a sports and race car service shop with $500,000 in annual revenue.
- Performing all duties required in starting the business including writing the business plan, acquiring financing, legal requirements, acquiring and installation of the equipment, cash flow planning, and creation of branding and marketing materials.
- Managering duties included employee hiring, employee management, employee termination, scheduling and management of work flow, marketing and advertising, vendor management, inventory management, shop equipment purchasing and repair, daily parts ordering and management, and managing business goals.
- Technical Lead duties included diagnosis, acting as escalation troubleshooter for other techs, creating estimate of work needed, ordering needed parts for each job, accurately performing each repair, test driving and verifying each repair, write up of final invoice, interact with customer before and after job to explain repair and address customer concerns, and help schedule work flow.
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FrogJanuary 2000 - January 2003

- Performing a full range of technical lead duties for a 30-year-old industry leading Design Company.
- Leading a team of 5 people to build T-Mobile.com e-commerce web site project utilizing ASP, XML, and MS SQL Server.
- Successfully delivered full site on time and on budget.
- Creating technical framework, data model, data integration with third party API, and XML data transfer.
- Managing a team of 8 people to create the user interface for a time management application. This user interface was built using an object oriented approach to JavaScript.
- Creatoing the framework as well as an entire library of reusable UI components which was later packaged and marketed as separate product.
- Acting as the in house expert on SQL server, ASP, JavaScript, VBScript, cross browser compatibility, and XML.
- Mentoring the team members on best coding practices, work management, time management, and documentation.
- Performing regular code reviews of team members’ code.
- Acting as primary client contact for technical issues.
- Actively participated in creation of client proposals and budgets and client ations.
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DellJanuary 1998 - January 2000

- Creation of web based applications for both internal and external company's websites.
- Applications consisted of a browser based front-end utilizing ASP technology and a SQL server back-end. - Acting as the DBA for the department. DBA duties included server monitoring, new application database schema design, performance analysis, database tuning, database maintenance, and resolving all database related issues.
- Managing the company's knowledge base tools application, which included a data input tool, reporting/metrics application, admin application, internal search, external search, and a document display module.
- Creating the company's knowledge base database schema and tuned the database.
- Responsible for all metrics and reporting requests and issues.
- Re-architecture of the metrics gathering and reporting for all existing and new applications.
- Responsible for all aspects of the project including writing specifications, technical design, evaluating technologies, development, testing, implementation, and maintenance.
- Recruiting and evaluating new members of the team.
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MicrosoftJanuary 1995 - January 1998

- Performing DBA duties for the Microsoft Licensing application, which accounted for over 50% of Microsoft’s revenue.
- Database maintenance tasks, database performance issue resolution, server recovery, debugging and fixing SQL application code, resolving code performance issues through optimizing SQL code, writing SQL scripts to automate maintenance tasks, permissions and user login troubleshooting/maintenance and resolving SQL replication issues.
- Re-writing the reporting VB application to increase stability and provide new functionality.
- Acting as an escalation point for rest of the team.

Mes compétences

XML, Windows, TypeScript, SQL, SOAP, Shopify, Scrum, REST, Project Management, PostgreSQL, PHP, OOD, Node.js, MySQL, Microsoft SQL Server, Linux, Laravel, jQuery, JavaScript, IIS, HTML5, Git, E-commerce, Database Administration, Apache, AngularJS, AJAX, Agile, Adobe Photoshop