Jing-yang Peng
Backend Engineer
No intro yet.
Cherri 喬睿科技
Fu Jen Catholic UniversityTaipei City, Taiwan
Professional Background
Current status
Unemployed・Ready to interview
Profession
Back-end Engineer
Fields
SaaS / Cloud Services・Software・Information Services
Work experience
4-6 years (4-6 years relevant)
Management
-
Skills
Java 8Play FrameworkLinuxGitSQLMySQLJSONSwiftObjective-CswaggerAWS EC2AWS S3AWS API GatewayAWS LambdaAWS RDSAWS SQSMemcachedJavaScriptMongoDBDockerJenkinsHTMLCSSJUnitiOS Application DevelopmentTOEIC765Laravel FrameworkSpring BootOOPGCPKubernetesHelmDroneCIFlux CDKeystoneJSPythonGolangElasticSearchLogstashGraylogPostgreSQLReact.jsGraphQLRabbitMQNode.jsRedisRabbitMQ.
Languages
English・Intermediate
Chinese・Native or Bilingual
Highest level of education
Bachelor
Job search preferences
Desired job type
Full time・Interested in working remotely
Desired positions
Senior Backend Engineer, Backend Engineer, Software Engineer
Desired work locations
台灣台北・台灣花蓮
Freelance
Non-freelancer
Work Experience
Senior Java Backend Engineer
Cherri 喬睿科技・Full-Time
November 2021 - November 20221 yr1 mo
台灣台北市
TapPay, one of the important product of Cherri Tech, is a Payment Gateway solution, which provides a seamless payment experience along with multiple payment options and had processed transactions exceeded 50 billion NTD in 2021. • Work on Payment Gateway services with Spring Boot • Write tests with JUnit, Mockito and PowerMock • Perform code reviews with colleagues to assure the software quality • Troubleshoot and resolve field issues which customers encounter
Backend Engineer
April 2020 - September 20206 mos
• Developed customized functions in newly upgraded CMS using KeystoneJS 5, Draft.js, Node.js, React.js, PostgreSQL and GraphQL • Developed Python schedulers • Maintained READr service using Go and Gin • Achieved optimization of search engine for media website by refactoring Python data feed and using Elasticsearch cluster • Managed CI/CD for all services with technologies used: Kubernetes, Helm, Flux CD, Drone CI and Docker • Managed GCP and Nginx configurationBackend Engineer
September 2019 - March 20207 mos
Cathay United Bank (5 months): • Developed APIs using Spring Boot BEANGO CO., LTD.: • Developed a RESTful API using Java, Play Framework, Apache Kafka and Hazelcast • Set up infrastructure for test environment, such as Kafka Cluster, MongoDB Replica Set, MySQL and Mcrouter
Senior Backend Engineer
October 2017 - October 20181 yr1 mo
• Participated in development of web-based B2B SaaS applications, such as Online Fitness Course Booking, POS Management and Payment Gateway Reporting/Dashboard • Maintained central authentication service (CAS) based on OAuth2.0 • Studied and followed Clean Architecture principles to develop clean, readable, open-to-extend, close-to-modify and testable modules • Worked in agile methodology during SDLC process • Involved in data modeling and schema design satisfying at least 3NF • Achieved optimization for performance of APIs by using Java concurrency classes, tuning SQL statements and refactoring • Actively participated in tracking and resolving product issues • Wrote test cases using JUnit • Technologies Used: Java 8, Play framework, EC2, RDS, SES, Memcached, S3, Intellij IDEA, git, MySQL, MongoDB, Firebase, Swagger, Docker, Jenkins, JUnit, EBean, JPA, Flyway
Applications Engineer
June 2015 - December 20161 yr7 mos
Data Management Platform: • Designed and developed RESTful serverless APIs with data team to build a real-time statistics/visualization dashboard • Technologies Used: Node.js, Serverless Framework, AWS Lambda, AWS API Gateway, AWS RDS and MySQL • Continuously optimized the performance of APIs with SQL tunings and Async module, reducing response time averagely by at least 40% • Designed and implemented the early workflow for collection of clickstream data of websites using GTM, JavaScript and PHP Other Works: • Designed and developed a shopping-cart application using Swift and Storyboard • Modified a slot machine game made with Cocos2d • Implemented simple and robust tracking SDKs in Objective-C and Swift as a proof-of-concept • Provided technical supports of tracking SDKs for advertising clients • Developed web services using PHP, Laravel and MongoDB Other Specialties: • Subjects of biweekly study: ML algorithms, Kaggle competitions, SQL tuning, French, etc.
iOS App Developer
Webi & Neti Internet Service Inc.
September 2013 - September 20141 yr1 mo
• Developed native iOS applications, compatible with iOS 7.*, using Objective-C and Storyboard; familiar with Auto Resizing, Cocoa Touch, UIKit, GCD and Instruments (Leaks and Allocations) • Integrated the applications with C-based filesystem and UDP/IP socket networking to perform efficient and reliable remote file access (RFA) • Improved functionalities of the third-party C-based filesystem • Designed and implemented RESTful APIs using Java Servlet • Published Apps: [email protected], WIFI-ShareDisk
Education
Fu Jen Catholic University
Bachelor of Science (BS)・Computer Science & Information Engineering
2008 - 2012・ 3.9/4 GPA
Activities and societies
Attended and Completed Courses on: • Machine Learning • Intelligence Computing • Search Engine • Software Engineering • Image Processing Society: • Green Field Club
