Hai Shi Lei
Staten Island,NY
Summary
Experienced Android Software Engineer dedicated to delivering excellence in both startup and corporate cultures. Proficient in Android development with a strong DevOps background in CI/CD, AWS, and skilled in Bash Scripting for automation. Enthusiastic about staying at the forefront of evolving technologies.
Overview
9
9
years of professional experience
Work History
Android Software Engineer
Morsel-YDY
01.2022 - 10.2023
- Collaborated within a dynamic team to design and develop an Android application, offering users an at-home workout experience. App featured fitness instructor-guided videos and was crafted using MVVM architecture and Kotlin
- Implemented CI/CD pipeline for the Android app, seamlessly automating building, testing, code signing, and deployment processes using Fastlane and Jenkins, ensuring efficient and reliable releases on Google Play Store
- Engineered and crafted the profile feature, enabling personalized workout progress and history tracking for an enhanced user experience
- Optimized the workout schedule feature through the use of ListAdapter and DiffUtil classes for
- RecyclerView, enhancing performance and user interface responsiveness
- Proactively maintained the STUDIO FITNESS app in production, ensuring ongoing stability, reliability, and seamless user experience. Currently listed on the Android PLAY store
- Implemented coroutines to manage UI responsiveness and handle network API calls, resulting in optimized app performance
Android Software Engineer
BNY Mellon
09.2019 - 01.2022
- Designed and maintained the profile feature of an internal ERP Android app using Kotlin
- Optimized customer list screen loading by rewriting RecyclerView code, resulting in a substantial boost in performance
- Implemented rigorous unit testing using JUnit and assisted with integration testing to ensure software quality
- Collaborated with the backend development team to ensure seamless integration with RESTful APIs
- Maintained and supported the android app on production with root cause analysis, increasing app stability and user satisfaction
- Integrated third-party libraries like Retrofit, Glide, and Dagger 2 to streamline network requests, image loading, and dependency injection
DevOps Engineer
Booz Allen Hamilton
03.2017 - 09.2019
- Setup and maintained a continuous integration/continuous delivery pipeline for 15+ applications teams
- Setup acceptance/production deployment using Jenkins pipeline as code to integrate legacy approval system with Jenkins
- Developed BASH scripts for enhancing the CI/CD pipeline and automating manual processes
- Administered CI/CD tools such as Jenkins, Sonatype Nexus, SVN, Jira, Confluence, Slack, linux(REHL), Windows and provided support
- Provisioned Jenkins node in AWS for deploying app and work on a proof of concept to migrate Atlassian tools(JIRA and confluence) to AWS
IT Consultant - DevOps Engineer
Fannie Mae
10.2014 - 03.2017
- Setup and maintain a CICD (continuous integration/continuous Development) process for an JAVA application in a SAFE (Scaled Agile Framework) environment
- Develop UNIX shell scripts to automate deployment process, configure Jenkins jobs, and support/debugging deployment issues
- Ensure smooth deployment to 25+ environments (test, performance, acceptance, production) every sprint by coordinating with scrum teams/DBAs/enterprise support teams, documenting the pre-deployment and post-deployment steps to higher environment
Education
B.S - Computer Science
Polytechnic Institute of New York University
Brooklyn, NY05.2014
Skills
- Operating Systems: LINUX(REHL), Windows, MacOS
- Languages/Scripting: Kotlin, Java, BASH Scripting
- Testing Frameworks: Junit, Mockito
- Android Frameworks: RetroFit, Glide, Dagger Hilt dependency injection
- Concurrency Technologies: Coroutines
- CICD Tool: Jenkins, Maven Sonatype Nexus
- IDE: Android Studio, Eclipse
- Versioning Tools: GIT, SVN
- Cloud: AWS(EC2, VPC, AMI, ELB, EBS, S3)
- Others: Jira, Confluence
Timeline
Android Software Engineer
Morsel-YDY
01.2022 - 10.2023
Android Software Engineer
BNY Mellon
09.2019 - 01.2022
DevOps Engineer
Booz Allen Hamilton
03.2017 - 09.2019
IT Consultant - DevOps Engineer
Fannie Mae
10.2014 - 03.2017
B.S - Computer Science
Polytechnic Institute of New York University
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