SUMMARY

• IT professional with over 10 years of experience in IT management for telecommunication industrial.
• Expert and high familiar with a wide variety of networking, security, engineering, programming, cloud 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; Centos 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, Impala, Pig, ETL, Microsoft Office (Word, Excel, Visio, Access, Project), GIT, SVN, JIRA, Redis, Foxpro, SQLWindow, Cognos, SAS, GlassFish Java EE application server, IBM Tivoli, HP Openview Operation Manager, MS Exchange

PROFESSIONAL EXPERIENCE

Confidential

Golang Developer

Responsibilities:

• Develop micro - services of visa clearing, settlement transaction processing system that interact with backend Splunk, Cassandra, Kubernetes, Kafka, Hadoop cluster and other 3rd party systems.
• Review and approve git and complex development workflows.
• Lower and detail level design.
• Motivating and mentoring team members on Golang development best practices.
• Working under CI/CD, SCRUM, JIRA, Cloudview, Kubernetes, BitBucket, TLS/TCP/IP, gRPC, Google protocol buffers, Prometheus, Jenkins, Docker containers, Agile development cycles, etc.

Confidential

Go Language Developer

Responsibilities:

• Develop micro-services that interact with Hadoop cluster, Impala, HBase, Kafka, Kudu, ElasticSearch, 3rd party endpoints and NodeJS API.
• Develop and support back-end systems and support tools
• Find and address bottlenecks and performance issues across the application stack
• Backend Golang programming interaction with front-end in Angular by RabbitMQ

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 based information, Apple WiFi calling and Mobile Internet for servicing ~2 million subscribers.
• Maintenance and support full lifecycle of a Hadoop solution (Cloudera base), including requirements analysis, platform selection, technical architecture design, performance tuning, troubleshooting, application design, development, testing and deployment
• Provide technical and managerial leadership in a team that designs and devops large-scale cluster data processing systems.
• Implement Golang program to masking the user sensitive information before send out to big data system.
• Develop Golang for microservice on interact with devices, big data and database with Ruby on Rails and frontend by REST API.
• Automation scripting using Bash, Perl, Python, Golang, Java, etc.
• Build 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 such as malware, vulnerabilities, by spark streaming.
• Implements Cassandra distributed and clustering system to store all subscriber’s location information.
• The system products subscribers roaming report for marketing tailor sale. Integrated with Redis to provide real time location information for marketing promotion events on particular facilities, e.g. Hong Kong Sevens (rugby 7), New years festival, marketing mall promotion, etc.
• Web applications with PHP, Rails, Tornado and/or Apache to support production service and in house requirements.
• Mastering multiple scripts and distributed programming, Perl, Python, Ruby, Nodejs, Golang, Scala, Java and/or Powershell to support the services.
• Maintenance and support Cognos, SAS, Oracle, Postgresql, Redis, MySQL, Cassandra, MongoDB, etc.
• Security hardening on both OS and Application point of view.
• Using Golang to revamp the production log files transfer program to meet the security requirement.

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.
• Full stack web OSS development and support using Angularjs, Angular, Javascript, Oracle, Mysql and Ruby on rails, etc. 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, java to support and maintenance the services.
• Maintenance and support Oracle, Postgresql, MySQL, MSSQL, etc.