Profileimage by Marcus Chang Full Stack Engineer (Freelance), HTML/PHP/CSS, Java, JavaScript, Python, Linux, SQL, React/VUE, DDD from Muenchen

Marcus Chang

available

Last update: 06.09.2022

Full Stack Engineer (Freelance), HTML/PHP/CSS, Java, JavaScript, Python, Linux, SQL, React/VUE, DDD

Graduation: Master
Hourly-/Daily rates: show
Languages: German (Full Professional) | English (Full Professional)

Attachments

mr_chang_resume_2021.pdf

Skills

Agile, API Integration: AWS, Facebook, LinkedIn, Twitter, Twilio, Stripe, Paypal, WePay, Authorize, net, NetPay, GIT, PHPUnit, Composer, Vagrant, Bower, Grunt, Webpack, Database, MySQL, PostgreSQL, MongoDB, AWS Cloud Formation, AWS CodePipline, Jenkins, AWS ECS Docker, GitHub, Atlassian JIRA, Gitlab, BitBucket, Apache Webserver, LAMP, Linux, Performance Monitoring: Google Analytics, Search Console, GTMetrix, Google, CSS, Java, JavaScript, Python, SQL, React/VUE, web application, WordPress, Core PHP, CakePHP, HTML5, XML, CSS3, Ajax, jQuery, JSON, SOAP, API & PHP-based enterprise technologies, PSD, HTML, Joomla, Docker, Jira, Trello, Amazon AWS, ReactJs, PHP, Symfony, Doctrine ORM, test-driven development, refactoring, Confluence, Slack, automated tests, coding, API, Social Media, Authorize.Net, Database design, application design, cross browser, version control, asana, software tools, programming, bug reports, API.& PHP-based enterprise technologies, Web Service, ERP, Payment Gateway, SSL, DNS, various file system tools, backup

Project history

02/2021 - Present
Full Stack Engineer/Developer (Freelancer, Remote)
Freelance (Internet and Information Technology, < 10 employees)

Business: Using/adapting new technologies and skills for the Innovation projects, which help the corporations
making their digital transformation and also doing their business more creative and effective.
My Responsibilities:
* Directly communicated with the various clients from different countries.
* Analyzed client requirements, understood their need and provided solutions based on their need.
* Develop website and web application with WordPress (Plugins/ themes), Core PHP, CakePHP, MySQL,
HTML5, XML, CSS3, JavaScript, Ajax, jQuery, JSON and SOAP, API & PHP-based enterprise technologies.
* converting PSD files to HTML, PSD/HTML files to Wordpress
* developing a Wordpress theme from scratch
* tweaking Wordpress themes
* developing a Joomla theme from scratch
* tweaking CSS codes
* Responsive Website Design
* Mail Template, Landing Page Design
* Complete website redesign services, along with maintenance and updates for client's website throughout
the year

06/2015 - 01/2021
Team Lead of Digitalization Engineering
Alibaba Corp. (Internet and Information Technology)

My Responsibilities:
* Working on the following technology: DDD, containers (Docker), Continuous, Delivery, Git, Jira, Trello,
Amazon AWS, front-end development (ReactJs, JavaScript, HTML, CSS), Backend Development (PHP,
Symfony, Doctrine ORM, MySQL, PHPUnit).
* Design, develop, test, and implement projects from end to end, throughout the software development life
cycle, including code reviews.
* Experienced in producing quality software; code reviews, testing & test-driven development, refactoring
* Planning and issue-management via JIRA, Confluence, Trello, and Slack
* Writing automated tests and reviewing with peers' code to help keep our coding standards high.
* Wrote Unit Test for most of the functionality and API endpoints
* Reviewed other member's pull requests and ensured quality code.

05/2011 - 06/2015
Senior Software Engineer
Google Corp.

My Responsibilities:
* Develop website and web application with WordPress (Plugins/ themes), Core PHP, CakePHP, MySQL,
HTML5, XML, CSS3, JavaScript, Ajax, jQuery, JSON and SOAP, API & PHP-based enterprise technologies.
* Working different kinds of API integration such as Google, Social Media API, different kinds of Payment API
like Paypal, WePay and Authorize.Net etc.
* Working on Database design, responsive application design & cross browser issue.




* +Source code version control & Project Management using Git, Bitbucket and asana.
* Working on Code Optimization, ensure application Security and fraud protection capability.
* Ensure critical technical support to business and better access the potentials for IT solutions or changes to
enhance the business
* Understanding client's requirements and assessments.
* Convert client's requirements to technical requirements.
* Provide general administrative support to the organization
* Research and recommend software tools to management.
* Review, to the extent possible, changes in code and the environment that will affect system performance.
* Responsible for analysis of current programs including performance, diagnosis and troubleshooting of
problem programs, and designing solutions to problematic programming.
* Tests new programs to ensure that logic and syntax are correct, and that program results are accurate;
assists lower-level programmers with programming assignments.
* Writes, edits, and debugs new computer programs for assigned projects, including necessary records and
desired output.
* Responding promptly and professionally to bug reports.

05/2008 - 05/2011
Web Application Engineer
Amazon Corp.

My Responsibilities:
* Develop website and web application with WordPress (Plugins/ themes), Core PHP, CakePHP, MySQL,
HTML5, XML, CSS3, JavaScript, Ajax, jQuery, JSON and SOAP, API.& PHP-based enterprise technologies.
* Worked on Web Service (SOAP) development, integration ERP application & Integration with different
Payment Gateway (SSL, DNS etc.)
* Work on multiple projects in a parallel manner and complete tasks within the constraints of scheduled
timeline.
* Introduce cutting-edge technologies to existing projects.
* Support, maintain and document of different software functionality & website design update.
* Documents and demonstrates solutions by developing documentation, flowcharts, layouts, diagrams, charts,
code standardization and understandable.
* Manage and Develop web application in Linux environment.
* Business processes, especially telecom billing issues.
* Manage adhoc reports using SQL and various file system tools for Linux.
* Data management and database backup/restore.

Local Availability

Open to travel worldwide
Liebe Remote-Projekte;
kann ja nach Projektumfang Zeitlich variieren

Other

my contact: germanyqi@hotmail.com
Profileimage by Marcus Chang Full Stack Engineer (Freelance), HTML/PHP/CSS, Java, JavaScript, Python, Linux, SQL, React/VUE, DDD from Muenchen Full Stack Engineer (Freelance), HTML/PHP/CSS, Java, JavaScript, Python, Linux, SQL, React/VUE, DDD
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