Kangbo Lee Email & Phone Number

London, England, United Kingdom

London, England, United Kingdom

· Worked across most of the company tech stack, including: · The main website (www.bullionvault.com), internal website, reports generator and deposit processor using Java 17 with Spring and Gradle, with HTML, CSS and JavaScript used for front end · Database (DB) using Oracle SQL, with DB offsite backup service written in Kotlin.· Production environment runs on AWS EC2 and RDS. Selenium used to for automated UI regression tests. · Introduced CloudFront CDN to speed up the website for users further away from London where appropriate.· Drove effort to Dockerise all services to set up a new Kubernetes cluster in dev on three servers. Improved developer experience with seamless deployments with appropriate Jenkins tasks. Namespaces now allow us to run and test different feature branches concurrently.· Migrated Docker and Maven repositories on new dev servers with the appropriate firewall and reverse proxies.

London, United Kingdom

· Implementing new features, fixing bugs and refactoring code for over a dozen microservices carrying out various functions, including authentication, anonymization (GDPR compliance), Google Datastore sink, API Gateway and subaccount creation. Services hosted on Unix servers.· Most services written in Java 8 with Gradle. Some services written in Go. End-to-end tests written in Python in collaboration with SDET team members.· Working in an agile, test-driven team. Daily stand-ups, automated continuous integration pipelines and frequent deployment to production managed by team. Tasks and weekly progress tracked using Jira.· Took initiative to containerise existing services with Docker and to automate continuous integration by running all tests (unit, integration and E2E) for every pull request. Accomplished with Jenkins creating AWS EC2 instances.· Created Helm charts to run newly created services on Kubernetes clusters hosted on EKS.· Carried out performance tests to measure real world throughput of our services and to identify bottlenecks.· Earned the AWS Associate Architect and Associate Developer certifications.

London, United Kingdom

· Developing SIP Trunking services for handling VoIP calls, used by both internal and external corporate customers around the world. Written in Java 8 with Maven used for building projects. Services run on various UNIX servers.· Working in an agile, test-driven development team. Daily stand-ups, regular two-week sprints with weekly code review sessions. Tasks tracked using JIRA boards. Jenkins used for continuous integration.· Introduced new features including emergency call identification, codec transcoding support and session refresh. Analysed existing logic and implemented features so they would run at the appropriate stage and with minimal performance hits. Wrote both JUnit and end-to-end tests that mimic real-world usage scenarios.· Enhanced web GUIs used by the internal support team to allow control of new features. Implemented using JSP.· Fixed bugs using IntelliJ debugger and Wireshark to analyse SIP packets. Refactored code to improve efficiency.· Used Oracle TimesTen SQL queries to provision, modify and delete customer and system configuration data.· Created Bash and Python scripts to automate performance tests, which used to be run manually. The data is analysed, presented and shared with the team to address scalability challenges and identify bottlenecks.· Built various Docker images with Ansible to create containers to be used on the local development environment. Co-hosted a Docker knowledge share session as an initial member of the team to utilise the technology.· Earned the Oracle Java 8 OCA Certification with plans to get the OCP certification.· Hosting a tri-weekly team meeting to review, improve and share the work the wider team has done.

London, United Kingdom

· Worked in Skype for Business 3rd line support team within the Core IT Infrastructure unit· Supported and improved the server infrastructure by creating Splunk dashboards and scripting· Fixed various issues on Clarify CRM and Remedy Expedio that could not be solved by the first two lines of support

Bachelor Of Science (Bsc), Mathematics, 2.1

Activities and Societies: Schools Plus Volunteering Scheme, President of the Economics Society, Squash, Clay Pidgeon· Broad based first.

A-Levels: A*A*A*A, Gcse'S: 6 A*, 4 A

· A-levels: Mathematics (A*), Further Mathematics (A*), Physics (A*), Economics (A), Chemistry (AS-level: A) · Awarded the ‘Borchardt.