David Wainaina Email & Phone Number

Remote

Remote

 USSD and SMS application development across Africa.  Developing Mobile money application with MPESA, Kokopo, PayPal, Pesa Pal, inter-switch and creditswitch.  Development of web-based application using Django, Java, Python Linux administration and consultancy across Africa.  Oracle database application development and consultancy of oracle related queries. Development of E-commerce sites/interfaces and integrating the sites with various payment gateways like YO… Show more  USSD and SMS application development across Africa.  Developing Mobile money application with MPESA, Kokopo, PayPal, Pesa Pal, inter-switch and creditswitch.  Development of web-based application using Django, Java, Python Linux administration and consultancy across Africa.  Oracle database application development and consultancy of oracle related queries. Development of E-commerce sites/interfaces and integrating the sites with various payment gateways like YO payment, Interswitch, Pesapal , MPESA Show less

Remote

 High-Level Technical Support for RedKnee Total Converged Billing and charging solutions, to Clients and Customers across the globe. Providing consultancy services to customer business and technical teams for implementing various Business to Customer (B2C) products on the Redknee Telecom Charging System Identifying Root Cause Analysis of customer-impacting issues and ensuring that the SLA milestones are met Coaching and mentoring the team member on various Redknee/Optiva… Show more  High-Level Technical Support for RedKnee Total Converged Billing and charging solutions, to Clients and Customers across the globe. Providing consultancy services to customer business and technical teams for implementing various Business to Customer (B2C) products on the Redknee Telecom Charging System Identifying Root Cause Analysis of customer-impacting issues and ensuring that the SLA milestones are met Coaching and mentoring the team member on various Redknee/Optiva production and services. Working as a Customer Support engineer to analyze and manage Incidents/Tickets resolution for permanent fix and/or Upgrades Articulate, review and modification of standard procedure for upgrades / Configuration changes / Maintenance activities and knowledge Articles. Advanced Troubleshooting at Java code level/thread dumps / Garbage Collection logs / Performance & Operation measurements and Application debug logs/event records. Show less

Remote

 Application support for Ignite, Aurea, and Versata products.Troubleshooting support to Ignite, Aurea and Verserta products and ensure uptime Working as a customer support agent to analyze and manage Incidents/Tickets resolution for permanent fix and/or Upgrades Technical support and Proactive monitoring using Nagios, and pager duty Administer Amazon AWS this includes Compute (EC2), Network (VPC, VPN, Classic), Storage services (EBS, S3, Glacier). Working with application… Show more  Application support for Ignite, Aurea, and Versata products.Troubleshooting support to Ignite, Aurea and Verserta products and ensure uptime Working as a customer support agent to analyze and manage Incidents/Tickets resolution for permanent fix and/or Upgrades Technical support and Proactive monitoring using Nagios, and pager duty Administer Amazon AWS this includes Compute (EC2), Network (VPC, VPN, Classic), Storage services (EBS, S3, Glacier). Working with application in Kubernetes and Docker containers. Show less

 Customer support: Supporting Customers with queries, incidences and resolving customer tickets.  Implementation, installation, and integration of Verifone mobile money application with the operation mobile money ( Airtel Money and MTN Money)  Escalation and working with R&D for bugs and application enhance  Configuring application, MPOS, Famoco, and patching of application Ensuring customer satisfaction by running UAT and SIT tests with the client, Educating the customer… Show more  Customer support: Supporting Customers with queries, incidences and resolving customer tickets.  Implementation, installation, and integration of Verifone mobile money application with the operation mobile money ( Airtel Money and MTN Money)  Escalation and working with R&D for bugs and application enhance  Configuring application, MPOS, Famoco, and patching of application Ensuring customer satisfaction by running UAT and SIT tests with the client, Educating the customer on NFC application and assist mobile money agents  Installing and mounting of servers Responsible for Delivery and execution of the projects onsite/Offsite and supporting the end to end customer requirements & needs. Pre-production environment for major telecom customer – developing test plans and testing methodologies, running of day-to-day lab operations, maintaining hardware, coordinating multiple vendors for interoperability verification projects. Scripting and automation of reports Show less

Kenya

 Installing, upgrading, patching oracle databases across Airtel customers in Africa.  Configuring oracle backups, Maintaining required retention policy, testing of backups for oracle databases  Working with customer support agents and R&D in the optimization of queries to provide fast and efficient applications. Database migration from windows single instance to Linux based Oracle RAC instances. Offering 24X7 DBA support across Africa. Administering oracle objects, server… Show more  Installing, upgrading, patching oracle databases across Airtel customers in Africa.  Configuring oracle backups, Maintaining required retention policy, testing of backups for oracle databases  Working with customer support agents and R&D in the optimization of queries to provide fast and efficient applications. Database migration from windows single instance to Linux based Oracle RAC instances. Offering 24X7 DBA support across Africa. Administering oracle objects, server utilization, network-related issues to ensure 100% uptime.  Configuring, installing or oracle reporting server database using data grid  onsite customer support, database migrations, and project management. Show less

Kenya

 OS installation and configuration of common application ( SSH, Network , SMTP configuration, Nagios, Glassfish, Apache, MySQL) 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 Configuration and automation of health checks in telcom application and servers to ensure 100% uptime  Automation of… Show more  OS installation and configuration of common application ( SSH, Network , SMTP configuration, Nagios, Glassfish, Apache, MySQL) 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 Configuration and automation of health checks in telcom application and servers to ensure 100% uptime  Automation of generation of reports from call data records/event records for all VAS applications.  Automation of transfer of call data records, CDR and Event records to the external system.  Generation of monthly servers utilization report for purpose of planning  Perform ongoing performance tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required. Show less

Kenya

 Receiving escalation from L1 and working with L1 and customer to resolve the problem faced by the customer.  High level of configuration, patching and working with application vendor for upgrade and escalation of unresolved issues.  Customer support; Arranging meetings with customer , skype calls to resolve customer problems  Configuring and optimization of web servers to ensure high and optimal performance. Building application to helping with automation, customer… Show more  Receiving escalation from L1 and working with L1 and customer to resolve the problem faced by the customer.  High level of configuration, patching and working with application vendor for upgrade and escalation of unresolved issues.  Customer support; Arranging meetings with customer , skype calls to resolve customer problems  Configuring and optimization of web servers to ensure high and optimal performance. Building application to helping with automation, customer prepaid billing and application performance reports. Show less

 Developing, maintaining and troubleshooting USSD & SMSC application.  Developing web application using python and Django framework.  Configuring, activation and developing prepaid customer promotion.  Developing and maintaining customer prepaid bundles interface. Customer support supporting and resolving incidents raised by Airtel customers  Database support Supporting internal database and installation of test databases

Responsible for:- Installing the operating system and also any supporting software’s- Dealing with troubleshooting software and hardware failure.- Dealing with data security and recovery.- Training individuals on new features in new Softwares in the market.- Hardware and Pc Maintenances - Data backup

Duties and responsibility:- Web development and programming- Phone network setup- Linux Administration- Mail and Telephony support- Python Programming- JavaScript development and HTML Templates- Troubleshooting and ensuring internet functionality

Bachelors Of Business Information Technology (Second Class Honor Upper Division), Development, Web Design , Database Development , Mobile Development

Activities and Societies: Developing of business information system, Developing of J2EE to both Linux and Window Clients Developing.

Diploma In Computer Science, Diploam In Computer Science

Activities and Societies: Computer hardware and repair. Network administration. System analysis and design. Trouble shooting computer.

Bsc; Diploma, Business Information Technology; Computer Science

K.C.S.E;, Kenya Secondary Studies