Samuel Njumba
Cape Town
Overview
3
3
Certifications
9
9
years of professional experience
Work History
Postilion Support Engineer
EasyPay Pty Ltd
2023.03 - 2024.12
- Support Realtime environment.
- Setup and configure Stores on Postilion switch.
- Add, Modify, and configure devices on the Switch.
- Generating different requirements, files, and reports from the switch.
- Configure Bins, upgrade security patches.
- Oversee Switch operation and give hand to the monitoring procedures to apply strong control and eliminate errors.
- Responsible for the operational performance of the transactional switch environment in liaison with our third-party provider.
- Support merchants by attending to their queries which might be transaction batch and configuration related.
- Support of Postilion Payment application and related platforms.
- Using Realtime Monitor Checks System Overview: - Postilion Services, Interchanges, Nodes and Close Events.
- Monitor batch cutover.
- Resolve any request, change or incidents related to Postilion.
- Execute transaction queries to support business.
- Setup and configure Disaster recovery.
- Ensure periodic test are executed at the DR site.
- Ensure that failover procedures are documented and kept up to date.
- Ensure that communication channels are established with all clients at a technical level.
- Ensure feedback is given to both management and clients.
- Ensure adequate testing has taken place before implementing new systems or changes to existing systems.
- Ensure all technical documentation is current and freely available.
- Ensure all process are documented.
- Evaluate any new system released/upgrades from development.
- Ensure that a testing schedule and procedure is available.
- Set-up and maintain Production systems.
- Identify issues/problems, assess the severity of the problem, and take corrective action.
- Determine appropriate approach to solving problems.
- Develop plans for implementing solutions.
- Reason for Leaving: Retrenched
TechOps Engineer
DPO Group (PayGate Pty Ltd)
2022.07 - 2022.11
- Supported in-house e-commerce applications, conducting daily checks, and ensuring successful online payments.
- Performed mapping requests, new sites configuration, conversions and integrations.
- Resubmitted any stuck transactions, and also resubmitted any transactions not sent to the bank through our intranet or database using MySQL scripts.
- Investigated issues regarding critical errors on the payment system.
- Reason for leaving: Contract completed successfully.
Support Analyst
Transaction Junction
2017.10 - 2022.07
- Investigate issues regarding critical errors on all servers.
- Loading errors on JIRA so that it can be eliminated from occurring again.
- Implementation of normal recurring changes (e.g. new store loads, mapping request).
- Assist with problem solving and information gathering (traces/log files). Query SQL databases.
- Investigate eSocket and Point of Sale (POS) related issues.
- Doing store loads for clients on config/Realtime servers.
- Retail software and Point of Sale (POS) hardware support.
- IT Proficiency in TCP, IP, and Ports, Netstat, Telnet, ping, Trace Processor, ipconfig, ping, and nslookup.
- Provide reports to management on what was found (e.g. consistent daily errors occurring)
- Perform compliance checks for PCI DSS. SQL script to solve queries on database.
- Use SQL server 2008 - SQL server 2019 version support.
- Handling of day-to-day incidents and requests for information/transaction queries.
- Effective resolution of escalated issues via thorough root cause analysis and effective resolution and providing concise reporting. Technical support of our environment.
- Early identification of issues through monitoring. Basic monitoring & quality assurance checking.
- Provide after-hours support according to a standby schedule.
- Provide resolution for support requests to customers, according to the SLA.
- Assist POS Vendor setting up with POS integration onsite and configuring the PEDs.
- Exposure to different POS solutions such as DolfinPOS, GAAP POS, IQ Retail, Micros Simphony, FuturePOS, LegendPOS, Genesis Software systems & UNIPOS.
- Configure, troubleshoot, isolate, repair, and resolve all customer issues.
- Reason for Leaving: Resigned (accepted another offer)
Helpdesk Agent
UCS Technology Services
2016.06 - 2017.03
- Call allocation (assigning to the different support departments).
- Answering help desk incoming calls. Provide desktop and Printer support.
- Responsible for IT support relating to workstations and networks.
- Call updates and close calls on the service desk system.
- Diagnose, troubleshoot, and repair hardware and software problems in remote stores.
- Provide Local Area Network (LAN) Support. Installation of software.
- Troubleshoot server and workstation issues. Audit trail, reprint slips remotely at stores.
- Provide call management on Information Technology Service Management System (ITSM).
- Basic Software and Hardware support. (1st Line).
- Reason for Leaving: Contract completed successfully.
Education
National Diploma - Information Technology (Business Applications)
Walter Sisulu University
01.2013
Senior Certificate - Grade 12 / Matric
Bhekezulu S.S.S
01.2008
Skills
SQL Server Management Studio, Database Queries, Microsoft SQL Server, and MySQL
Point of Sale (POS) Systems Config Server (ESocket and Postilion)
Postilion, EFTPOS, and Store mapping POS integration/PED Esocket
Realtime Management Console Terminal Configuration (PosConnector Configurator)
Transaction Manager Configuration (sink nodes and card acceptors)
Technical Support and Customer Service Jira Confluence Zoho
Networking Commands (Telnet, tracert/traceroute, netstat, ipconfig, ping, nslookup & firewall)
References
- Micheal, Ilunga, Postilion Support Engineer Team Lead, 073 419 0908, 068 472 9201, EasyPay
- Athisive, Mgwali, Database Administrator, 078 239 3129, EasyPay
- Thabo, Mafuna, Support Analyst, 063 812 2987, Transaction Junction
Certification
2019 SOLOLEARN SQL Fundamentals Course
Summary
Experienced technical support professional with robust background in troubleshooting and client assistance. Consistently enhances system functionality and resolves technical issues efficiently. Known for collaborative teamwork and adaptability in dynamic environments.
Timeline
Postilion Support Engineer
EasyPay Pty Ltd
2023.03 - 2024.12
TechOps Engineer
DPO Group (PayGate Pty Ltd)
2022.07 - 2022.11
Support Analyst
Transaction Junction
2017.10 - 2022.07
Helpdesk Agent
UCS Technology Services
2016.06 - 2017.03
Senior Certificate - Grade 12 / Matric
Bhekezulu S.S.S
National Diploma - Information Technology (Business Applications)
Walter Sisulu University