Computer Warehouse Group Plc recruitment for a Developer and Systems Administrator

Computer Warehouse Group Plc - One of the fastest growing information and communication technology companies in Africa today. We offer integrated ICT solutions that add value to the operations of diverse clientele, using highly skilled and well motivated workforce. We work with best-in-class partners and technologies from all over the world.


We comprise three divisions, each with expertise in one of the three information technology disciplines, plus an IT training and certification centre.

We are recruiting to fill the position of:

Job Title: Developer

Location: Nigeria

Job Descriptions

• Take a product through the entire life-cycle of analysis, design, coding, testing and implementation and support
• Ensure robust, scalable and sustainable architecture for software projects.
• Provide regular reports on status of assigned projects.
• Ability to work as lead developer/team lead on new or existing projects.
• Implement all aspects of an application design - high performance design, coding, caching mechanisms, security, encryption, state management, error logging, debugging, scalability, code reviews, development environment configuration, and testing
• Perform unit and system level testing on applications
• Provide Client Support on technical problems.

• Strong skills in Java programming
• Strong understanding of Design Patterns
• Strong background in OOP, UML, Object Oriented analysis and design
• Ability to multi-task and switch context to changing priorities in a highly dynamic environment
• Excellent troubleshooting skills, especially in a complex application stacks
• Proficient in written and spoken English
• Having experience in Test Driven Development
• Mobile Platform is a plus.
• C programming background is a plus.
• Application design tools/frameworks, e.g. Spring, Ant, Eclipse, Maven, Hibernate, JPA etc.
• Strong background using tomcat, glassfish, jboss, jetty or related
• Experience with REST web services is a must.
• Experience working in high performing development teams using Agile/Scrum methodologies and tools
• Experience with various code versioning systems, such as Subversion or git
• Design and implement data models and data access layer for new product functionality

• Bachelor's Degree in Computer Science or related field. Second class upper or above is an added advantage.
• At least 3-4 years working experience as a core developer.

• The System Administrator (SA) is responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure.
• This individual participates in technical research and development to enable continuing innovation within the infrastructure.
• This individual ensures that system hardware, operating systems, software systems, and related procedures adhere to organizational values, enabling staff.
• This individual will assist project teams with technical issues in the Initiation and Planning phases of our standard Project Management Methodology. These activities include the definition of needs, benefits, and technical strategy; research & development within the project life-cycle; technical analysis and design; and support of operations staff in executing, testing and rolling-out the solutions.
• Participation on projects is focused on smoothing the transition of projects from development staff to production staff by performing operations activities within the project life-cycle.
• This individual is accountable for the following systems: Infrastructure that runs on Unix, Linux and Windows systems.

• Engineering of SA-related solutions for various project and operational needs.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Install and configure systems
• Develop and maintain installation and configuration procedures.
• Contribute to and maintain system standards.
• Research and recommend innovative, and where possible automated approaches for system administration tasks. Identify approaches that leverage our resources and provide economies of scale.

• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Perform regular security monitoring to identify any possible intrusions.
• Perform daily backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary.
• Perform regular file archival and purge as necessary.
• Create, change, and delete user accounts per request.
• Provide Tier III/other support per request from various constituencies. Investigate and troubleshoot issues.
• Repair and recover from hardware or software failures. Coordinate and communicate with impacted constituencies.

• Apply OS patches and upgrades on a regular basis, and upgrade administrative tools and utilities. Configure / add new services as necessary.
• Upgrade and configure system software that supports GIS infrastructure applications or Asset Management applications per project or operational needs.
• Maintain operational, configuration, or other procedures.
• Perform periodic performance reporting to support capacity planning.
• Perform ongoing performance tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required.
• Maintain data center environmental and monitoring equipment.

• B.Sc. Engineering or Computer Science.
• Systems Administration/System Engineer certification in Unix and Microsoft.
• Four (4) to Six (6) years system administration experience.

• Only successful applicants will be contacted.
• Applicants must state working telephone numbers at which they can be reached during office hours.