Engineer Computer Science

Objective

An IT enthusiast with experience in the engineering, administration and support of information systems. Adaptable to on-call duties and able to take up real-time and live-system responsibility. In-depth expertise in Linux system administration, network infrastructure and cloud technologies. During his career, he has worked in both multinational and multicultural environments and is someone who always has a professional and well-groomed appearance. Now looking for a challenging System/DevOps Engineer position, which will make best use of his existing skills and experience and also further his development.

Summary

Curiosity, innovation and passion for excellence in terms of performance, reliability, usability and functional correctness.

In-depth expertise in design and management of local and wide area network systems.

Strong understanding of Linux TCP/IP networking and server architecture (X86).

Expert knowledge of virtualization and software-defined networking technologies.

Good understanding of Data management Systems and Web Technologies (MySQL, MongoDB, HTTP, SSL, Memcached, Load balancing).

Good understanding of Computer Algorithms and Data Structures (B-Tree, Hashtable, Shared Memory, Scheduling), and experience in system automation.

Strong ability to support customers and focus on business outcomes.

Technical Skills

Languages: Java (82%) Python (85%) Unix-PowerShell (85%) C/C++ (80%) Ruby (69%).

Systems: Linux- Windows (89%) Cisco IOS-Mikrotik (85%) VyattaOS-OpenWRT (90%).

Tools: Eclipse/Tomcat/Apache, Git, Puppet, DPDK, OpenDaylight, OpenvSwitch, Mininet, Xen, QEmu-KVM, Putty, Team viewer, Notepad++, Wireshark, NAGIOS, Office and Adobe Suite.

Data: MySQL-SQL Server (85%) MongoDB-Oracle (75%).

Web: HTML-PHP (89%) JavaScript (75%).

Virtualization: VMware vSphere-OpenStack (88%) Docker-Amazon Web Services (80%).

Work Experience

NASP (Network Architecture, System and Protocols) research group is a part of the networking research lab in the department of Computer Science and Technology-清华大学.

Role: Graduate Research Assistant-Tsinghua University June 2014-December 2015

Previous research experience in the virtualization and SDN technologies for future cloud-based infrastructures. End-up with a thesis in the performance evaluation of the packet forwarding in NFV (software-defined network functions) using flexible commodity servers (x86) and open source frameworks (DPDK, KVM, OpenvSwitch, OpenStack, Linux).

Systems: CentOS, FreeBSD, Ubuntu, Fedora, VMware ESX 5.5, Windows Azure.

Hardware: Dell PowerEdge R230II, Asrock Z97 Extreme6, Intel 10Gbe Dual Ports NICs.

Software: DPDK, QEmu-KVM, Xen, OpenStack, Open vSwitch, Click, Netmap, Mininet, Git.

Accomplishments:

Worked in a team of 10 junior engineers to provide high performance networking applications in the cloud.

Focus in the performance tuning and system optimization of the TCP/IP stack to increase the speed of the packet processing over Linux operating system (multiple 10Gbps links).

Implemented software-based switches, routers, load balancers, VPN/firewalls and NAT on top of open-source solutions such DPDK, Open vSwitch, OpenDaylight, KVM/Xen, and flexible and low-cost commodity servers (Intel x86).

Implemented optimization techniques including Inter-Virtual Shared Memory, User Space Virtual Host, SR-IOV, Hypervisor-based packet switching to overcome virtual packet I/O limitation.

Cameroon Radio TeleVision (CRTV) is a major radio and television broadcasting company in Cameroon.

Role: Network System Administrator July 2010 – June 2012

Analyze and design a new network architecture based on Gigabit Ethernet technologies, with new routing/switching devices, servers and storage systems. Maintain the local and wide area internet/intranet, and VoIP networks utilizing Cisco and Windows/Linux utilities. 24/7 system monitoring and documentation of more than 500 network devices. Backup design over 1 Terabyte of data. TCP/IP core networking services using EIGRP, OSPF, BGP, IPX-SPX, SNMP, Active Directory, DHCP, DNS, SMTP, POP3, FTP, NFS and security policies using ACL, Firewalls, SSL, HTTPS, IPsec, VPN, IPS/IDS.

Systems: Windows Server 2003/2008, Windows XP, Windows 7, Linux, Oracle Linux, Asterix.

Hardware: Cisco (c2960, c3750, Cat3500/3750/3750e, VPN3000, Firewall AS5300), Mikrotik and TP-Link switches, PBX switches, HP ProLiant ML150 G3, Seagate Baracuda Hard Drives.

Software: Kaspersky-Norton Antivirus, Office and Adobe Suite, Cisco Packet tracer, GNS3,Exchange 5.5, PostFix, BIND, LDAP, FTP, Telnet, OpenVPN, Nagios, RADIUS, Hirens Boot.

Accomplishments:

Initiated multiple technical projects that improved performance and business functionality.

Design and implementation of a gigabyte backbone fiber optic network for 10 stations.

Installation and configuration of network devices including Cisco routers and switches, Mikrotik and TP-Link switches, and TCP/IP core networking services.

Configured network access servers and routers for AAA Security.

Enhanced client-server applications to enable smooth interaction within dial connections.

Implemented Up to 1Gbps for workstations, with significant improvement in desktop connectivity.

Performed key role in providing local engineering support, dramatically reducing operational costs.

Developed solution to provide regular weekly upgrades, backups, efficient and secure data transfers.

Education

Tsinghua University, Beijing-China.

Master of Science in Computer Science and Technology January 2016

Advisor: Associate Prof. Dan Li.

Network Architecture, System and Protocols (NASP) Research Group-Tsinghua University.

Research Project: A Comparative Study of Packet Forwarding Performance in NFV (Thesis).

African Institute of Computer Science (IAI) Yaounde-Cameroon.

Bachelor of Engineering in Computer Systems and Networks December 2012

Advisor: Mr. Tchio Flaubert – Electrical and Telecommunication Engineer – IAI.

Project: A proposal of a Gigabit Ethernet network architecture At Cameroon Radio Television.

Project Highlights

Project I: Managing Home access points from the cloud

Software: Linux, OpenWRT, HTML, PHP, MySQL, Python, C/C++, Shell Script.

Project II: Content-shared Social Networking with FTP and Geolocation features

Software: Linux, Eclipse/Tomcat, Java, MySQL, C/C++, HTML, JavaScript, FTP.

Project: Data Transfer Application

Software: Linux Programming, TCP/UDP, Boost C++ Library, Java.

Career Interest

Area: Distributed Systems and Networking

Optimize systems and applications for the cloud to keep up with the growing demand. I would like to share my collaborative and technical skills with an environment that continue to nurture innovation, to learn, progress and feel the satisfaction of success.

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