Katai H Nsiona
Johannesburg
Summary
An enthusiastic Software Engineer with experience in a fast-paced world of software development, infrastructure reliability and platform engineering. Eager to contribute towards the implementations of solutions to various problems whilst incorporating creativity, innovation, security and efficiency. A proud team player focused on achieving project objectives with quality in especially dynamic and fast paced environments.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Software Engineer
ZEPZ Technology Services Ltd
01.2023 - Current
- Develop and Implement robust integrations with various payout partners (MFS, Wave, Pegasus) utilizing Java and Spring Boot, ensuring seamless transaction processing for our users
- Design, Implement and maintain scalable RESTful APIs, enabling efficient data exchange and integration between the integrator, transactor and manager systems
- Ensure platform reliability by monitoring infrastructure health, configuring alert rules in Grafana, and actively participating in over 300 incidents to maintain system uptime and performance
- Perform database infrastructure upgrades and develop automation scripts (Python, PowerShell) for efficient bulk CRUD operations
- Develop and implement ETL scripts to facilitate seamless data migration of over 100 million records, ensuring data integrity and minimizing downtime
- Conduct extensive resource moderation on micro services, significantly reducing cloud CPU and memory costs through resource tuning
- This has resulted in cost savings of almost 30% so far
- Design robust testing frameworks to validate functionality and ensure a high level of quality assurance
Timetable Technician / Developer
Eduvos Institute
09.2022 - 03.2023
- Design and Develop Eduvos' first ever in-house student enrolment and management System (RegAssist) to reduce enrolment processing time by at least 20%
- Develop scripts to load student data from Excel Spreadsheets, processing over 10,000 records monthly for analysis and storage
- Optimize student timetables to reduce scheduling conflicts through parameter tuning
- This led to a reduction in tickets submitted by students by more than half compared to the previous year of enrollment
- Perform Unit and End-to-End testing of various sub components of the system to ensure higher quality code and less bugs during deployment
- Creating, managing and rectifying student timetables using the Untis timetabling system
- Carried this out for over 1000 students
- Develop subsystems to track student enrolment, attendance and academics to generate detailed reports for admin purposes
Education
Bachelor of Science - Computer Science
Pearson Institute
12.2020
Higher Certificate - Information Technology
Pearson Institute
12.2017
Skills
- C
- Java
- Python
- JavaScript
- SpringBoot
- React
- Express JS
- Node JS
- AWS
- Azure
- Microservices
- REST
- GraphQL
- GRPC
- Kubernetes
- Jenkins
- ArgoCD
- Terraform
- SQL
- NoSQL
- Git
- Gitlab
- WordPress
- Incident Management
- JIRA
Certification
- AWS Security Fundamentals, AWS, 01/01/22
- Web Development M.E.R.N, Udemy, 01/01/21
Timeline
Software Engineer
ZEPZ Technology Services Ltd
01.2023 - Current
Timetable Technician / Developer
Eduvos Institute
09.2022 - 03.2023
Higher Certificate - Information Technology
Pearson Institute
Bachelor of Science - Computer Science
Pearson Institute
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