Simon Leung Email & Phone Number

San Jose, Ca, Us

VoIP (Voice over IP) DevOps Engineer to manage and maintain a global SIP infrastructure to support real-time audio and video for Zoom Meetings. Responsibilities- Zoom services' release deployment, upgrades and maintenance- Design and implement zero-downtime Zoom services (99.99%)- Manage a SIP infrastructure with components: SBC, Telephony Gateway and Media Servers - Implement CI/CD to maintain a scalable architecture; work closely with developers- Automate deployments using Git, Terraform, Ansible, Python, Docker. - Identify and troubleshoot service and transport issues in AWS and Colo DCs.- Patch security vulnerabilities found by Qualys security scans.

Basking Ridge, Nj, Us

Cloud Engineer Lead with responsibility doing planning, designing, engineering, and operational support primarily on the Virtual Subscriber Profile Controller (vSPC) running on VMs and Identity Management Server (vIDMS) running on Kubernetes/Docker in Verizon Cloud Platform (VCP).- Performing routine care and feeding (Linux/OpenStack/Application Deployment/Programming), as well as debugging techniques for the application and system.- Directing, overseeing and managing the monthly/quarterly planning/Ops review meetings to address capacity and demand growth on the systems.- Proactively seeking solutions to improve application performance & efficiency, and reduce time on repetitive tasks through automation.- Providing mentoring to other team members on multiple facets and leading application design reviews for application redundancy, geographic diversity, and database replication, while ensuring a robust network design.

Basking Ridge, Nj, Us

- Acting manager for the VNOE applications SPC, IDMS, MRF Tones and MRFC Transcoding teams (11 people) - Managed 2022 budget for SPC, IDMS, MRF Tones and MRFC Transcoding- Interviewed and hired MTS IV candidates

Basking Ridge, Nj, Us

Lead Cloud Engineer with responsibility doing planning, designing, engineering, and operational support primarily on the Virtual Subscriber Profile Controller (vSPC) running on VMs and Identity Management Server (vIDMS) running on Kubernetes/Docker in Verizon Cloud Platform (VCP).- Performing routine care and feeding (Linux/OpenStack/Application Deployment/Programming), as well as debugging techniques for the application and system.- Directing, overseeing and managing the monthly/quarterly planning/Ops review meetings to address capacity and demand growth on the systems.- Proactively seeking solutions to improve application performance & efficiency, and reduce time on repetitive tasks through automation.- Providing mentoring to other team members on multiple facets and leading application design reviews for application redundancy, geographic diversity, and database replication, while ensuring a robust network design.

Basking Ridge, Nj, Us

ResponsibilitiesNational Network Operations (NNO) is responsible to lead and collaborate on the 6-18 month platform architecture, roadmap and capital budget plans of NNO infrastructure initiatives as it relates to new platform, product and service deployments.Lead effort to improve existing Verizon Cloud Platform Edge (VCPE) products such as Envolved Packet Core (EPC) to make them more reliable, scalable, and supportable. Lead multi-departmental teams to merge long-term plans with operational requirements. Provide in-depth knowledge and advanced proficiency in system operations, engineering, and support during the product development process for new and existing systems.

Kista, Stockholm, Se

- Responsible to setup a Test as a service (TaaS) load testing environment to evaluate maximum performance on the virtualized Multimedia Telephony Application Server (vMTAS). - Examine if MTASv running on top of OpenStack (IaaS) and using HP C7000 blade system hardware meets customer system performance requirements. - Evaluate vMTAS responds gracefully to unexpected events such as sudden traffic changes, extremely high loads, network outage, processor failure etc.

Kista, Stockholm, Se

Test/Integration lead at customer IMS lab with the following responsibilities:- Be involved in the planning, monitoring, and control of the testing activities and tasks.- Estimate the testing to be done and negotiate with management to acquire the necessary resources.- Lead, guide and monitor the analysis, design, implementation and execution of the test cases, test procedures and test suites.- Schedule the tests for execution and then monitor, measure, control and report on the test progress, the product quality status and the test results, adapting the test plan and compensating as needed to adjust to evolving conditions

Kista, Stockholm, Se

Interoperability testing with MTAS in IMS network over VoLTE. Performing feature and interface testing towards multivendor systems.

Kista, Stockholm, Se

Worked with Network Feature Test (NWFT) at Multimedia Telephone Application Server (MTAS). My main tasks are to install, upgrade, configure, test and write Verification Specifications (VS) on Multinode features that interworks with the IMS nodes SBG, CSCF, MTAS, HSS, MGC, MGW, MRS, MRFP, IPWorks, etc. In the team I got the responsibility to coordinate work and support other MTAS teams if they have questions regarding multinode testing.

Kista, Stockholm, Se

Worked as a node system tester on MTAS (Multimedia Telephony Application Server) my assignment was to test new features for MTAS. My work included installation, upgrade and configuration of the TSP platform and MTAS build. Verifying the features manually with clients or by writing automated test cases in the IMTAF framework. The team worked with Lean and Agile methods (Scrum/Kanban). I have been on many business trips to USA integrating MTAS and performing acceptance tests at customer networks.

Stockholm, Se

Primary task as a base soldier team lead, together with my group, discover threats, analyze and manage the threat. Daily tasks also include physical training, care of equipment, vehicles and equipment, participation in meetings and planning work at the group and the pluton. In addition, ordered emergency services or other assignments, such as ceremonial service and high security.

Master'S Degree, Information Technology

Mba, Business Administration, Management And Operations