SUMMARY:

IT professional with over 10 years of experience in IT management for telco industrial. Expert and high familiar with a wide variety of networking, security, engineering, programming, web and database technologies. Experience tasks related to project implementations, upgrades, conversions, recoveries, and supports. Strong interpersonal skills and ability to work effectively and collaboratively with a wide range of team members, clients, vendors, business partners, and stakeholders.

TECHNICAL SKILLS:

SECURITY: Akamai WAF CDN, SSL certificate configuration and management, Juniper Netscreen logging, BeyondTrust PowerBroker, BeyondTrust PowerBroker Password Safe, Red Hat Single Sign On Admin Portal

NETWORKING: Wireshark package analysis, BIND DNS server confirmation and management, F5, Load Balancers, SAN switch

OPERATION SYSTEMS: Window XP, Vista, 7; Windows Server 2003R2, 2012R2, Red Hat Enterprise Linux 5, 6, 7; Debian 7, 8, 9; Oracle Solaris 9, 10; HP Unix 11.x; Digital VAX, VMWARE, Docker

DATABASES: Oracle 7,8i,9i,10g RAC; MSSQL 6.5; MySQL 5.x; MariaDB 5.x; Postgresql 7.x,8.x; Cassandra 1.x,2.x; Hadoop 1.x,2.x; MongoDB 2.x, Progress RDBMS

PROGRAMMING: C, C++, Python, Ruby on Rails, Visual Basic .NET, GoLang, Oracle Pro*C, Oracle PL/SQL, Java, Javascript, Perl, Bash shell, JSP, S - Lang script, Erlang, JQuery, Bootstrap, REST web service

SOFTWARE & TOOLS: Apache2 HTTP server, Tomcat server, Tornado server, Nodejs sever, Spark, Cloudera, Hunk, Splunk, Tableau, RHEL Satellite, Hive, Flume, Microsoft Office (Word, Excel, Visio, Access, Project), GIT, SVN, JIRA, Redis, Foxpro, SQLWindow, Cognos, SAS, GlassFish Java EE application server, IBM Tivoli, HP OVO

LANGUAGES: English, Mandarin and Cantonese

WORK EXPERIENCE:

Confidential

Manager, Emerging and Infrastructure of Service Network

Responsibilities:

• Supervising project and support teams to provide overall direction throughout the service life cycle.
• Provide effective coaching, motivation and recognition to staff.
• Managed staff payload providing accurate information and assistance to coordinators with problems.
• Work closely with other business partners to drive technology innovation to achieve business objectives.
• Implement DevOps principles into IT infrastructure.
• Review the project proposals or plans to determine the time from, funding limitations, procedures for accomplishing the projects and negotiate the resources require for each project phase.
• Response for collaborating with the necessary teams to implement project management methodologies across IT projects.
• Design and maintenance infrastructures, such as MMS, SMS, VoIP, Powerbroker security platform, Location base information, Apple WiFi calling and Mobile Internet for servicing ~2 million subscribers.
• From zero to deliver Hadoop big data system to handle call logging, with average volume around 0.5T/day for data analysis and fault alarming requirement. Integrate with network equipment log, includes Juniper NetScreen and F5 firewall, to provide real time alarm on any internet security attack to the company system with spark.
• From zero to deliver mobile WiFi calling apps, both android and ios version, and background infrastructure which launched one year before Apple WiFi calling to seize the market share.
• Implements Cassandra distributed and clustering LBS system to store all subscriber location information. The system generated specified subscriber roaming report for marketing tailor sale. Integrated with Redis to provide real time location information for marketing promotion events on particular facilities.
• In house web applications, PHP, Rails, Tornado and/or Apache, development and implement to support the services.
• Mastering multiple scripts and distributed programming, perl, python, ruby, nodejs, golang, scala, java and/or powershell, to support and maintenance the services.
• Security hardening on both OS and Application point of view.

Confidential

Database Administration Specialist

Responsibilities:

• Management in house MIS team responsible to hardware and system administration on HP, Sun Solaris, Linux and window platforms.
• Oversight of project resources, funding and staffing with capacity and operational expenditure budgeting responsibilities with ~US$5M revenue impacts
• Designed and Implemented innovative database, includes MySQL, Postgresql, Oracle, architecture.
• Apply DevOps experience in networking and programming.
• Performance tuning PL/SQL program to generation daily report from execution time 24 hours reduced to less than 20 minutes.
• From ground up developing and deployed mobile network change and fault management system, with web end by Ruby on Rails and backend by Oracle DBMS. The system reduced the alarm SLA ~90% and compliance with Huawei management system to reduce ~US$0.4M per year maintenance cost.
• In house web applications, PHP, Rails, Apache, Oracle J2EE Glassfish, development and implement to support the services.
• Mastering multiple scripts and distributed programming, perl, python, ruby, nodejs, golang, scala, java, to support and maintenance the services.

Confidential

Senior Systems Engineer/Emerging Solution/Service Network

Responsibilities:

• Initiated, developed and deployed innovative home growth and vendor supported cost saving technologies and solutions, including forming the project team, risk/issue management and coaching the projects till their full completion.
• Perform DevOps practices for the projects, including continuous integration, continuous delivery, continuous testing and monitoring.
• Prepare and present project status reports regularly to management and clients for reviewing.
• In charge the MMS/SMS (text messaging) system to provide 7x24 uninterrupted service to ~2 million subscribers.
• Develop C++ program to handle MMS media size reformat and controlling system to sit between Confidential MMS server and client mobile handset to fix the MMS media download issue when content size too large. The system replaces the Confidential proposed solution which cost ~UD$50K per month license fee and extra one times implementation fee.
• Ground up design and implements mobile number portability dipping system with C program, involved 4 HP servers.
• The system allows maximum 120 transaction per second to real time dip out the text message (SMS) destination mobile number belongs which operator and send.
• The solution exchanges the Confidential ’s one which maximum 5 transaction per second.
• Actually forecasting Comptel Mediation billing gateway will suffer great delay when our billing transaction volume get further increase in the future by reverse engineering the s - Lang script coding by vendor. Resulting cut cost to enhance the gateway and revamp the gateway in advance.