Timothy Cheng
Senior Kotlin Software Engineer at Masabi- Claim this Profile
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Experience
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Masabi
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United Kingdom
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Urban Transit Services
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100 - 200 Employee
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Senior Kotlin Software Engineer
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Feb 2019 - Present
London, England, United Kingdom - Worked on critical infrastructure that handled public transport fare collection events and powering the backoffice customer service functionality, dashboards, prefab and on-demand reporting, and analytics using Kotlin, AWS Fargate, Elasticsearch, Kibana, and AWS Athena - Developed internal and external APIs to provide access to system events using Dropwizard - Wrote and maintained Wiki API documentation along with Swagger / OpenAPI specs for public transport agency clients to integrate… Show more - Worked on critical infrastructure that handled public transport fare collection events and powering the backoffice customer service functionality, dashboards, prefab and on-demand reporting, and analytics using Kotlin, AWS Fargate, Elasticsearch, Kibana, and AWS Athena - Developed internal and external APIs to provide access to system events using Dropwizard - Wrote and maintained Wiki API documentation along with Swagger / OpenAPI specs for public transport agency clients to integrate with the API
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Senior Java Software Engineer
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Oct 2017 - Feb 2019
London, United Kingdom - Maintained and extended the REST API for Mobile Ticketing that was built on Spring Framework - Spearheaded and delivered initiative to migrate legacy Spring app to Spring Boot - Introduced Terraform to the company and led effort to create on-demand Mobile Ticketing API testing environments, saving the company from running test servers running 24/7
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Invaluable
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United States
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Technology, Information and Internet
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1 - 100 Employee
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Senior Java Software Engineer
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Apr 2015 - Oct 2017
Allston, MA, USA
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Senior Java Software Engineer
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Jun 2013 - Apr 2015
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Java Software Engineer
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Nov 2010 - Jun 2013
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Fidelity Investments
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United States
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Financial Services
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700 & Above Employee
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Software Engineer
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Jan 2010 - Oct 2010
• Developed Flex 3 applications using Adobe FlexBuilder • Encouraged adoption of the Flex Mate framework as an application standard • Leveraged some of the newer features of Spring 3.0 to provide backend functionality to the Flex application • Managed iBatis mapping for calling stored procedures and ORM • Became acquainted with Spotfire mashups and IronPython scripting functionalities in reports
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Associate Software Engineer (Leap IT Development Program)
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Jul 2009 - Dec 2009
• Underwent the Leap Software Engineer track training which involved learning Spring MVC, PL/SQL, Ajax, Hibernate, iBatis, JDBC • Completed a project in Equity Trading to develop an automatic regression test tool • Familiarized and developed a dynamically generated GUI that would expose APIs as UI forms using Java reflection and Eclipse RCP (Rich Client Platform) • Collaborated closely with project team to gain practical experience with the Agile methodology during the project phase
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Education
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Worcester Polytechnic Institute
B.S., Computer Science -
Taipei American School
High School